/* ==========================================================================
   LEARN AI - DUOLINGO WEB REDESIGN (DARK EMERALD & NAVY THEME)
   Duolingo-inspired Gamified Language Studio tailored for Desktop & Web
   Aesthetic: Deep Slate Navy (#0B1120) • Emerald-Teal Primary (#00D68F)
   Accents: Vibrant Violet (#8B5CF6) • Golden Amber (#FF9600) • Coral (#FF4B4B)
   Tactile 3D Buttons • Daily Streaks • XP Quests • Mascot Companion
   ========================================================================== */

:root {
    /* Base Backgrounds (Deep Midnight Slate Navy) */
    --bg-canvas: #0b1120;
    --bg-sidebar: #0f172a;
    --bg-card: #162035;
    --bg-card-elevated: #1e2c4a;
    --bg-card-hover: #1f3052;
    --bg-inset: #0d1527;
    --bg-input: #0a101e;

    /* Primary Emerald-Teal (Duolingo Spirit • Web Night Adaptation) */
    --duo-green: #00d68f;
    --duo-green-border: #009e69;
    --duo-green-hover: #1ae29f;
    --duo-green-active: #008759;
    --duo-green-glow: rgba(0, 214, 143, 0.28);
    --duo-green-subtle: rgba(0, 214, 143, 0.12);

    /* Secondary Violet / Indigo (AI Teacher • Dialogue Partners) */
    --duo-violet: #8b5cf6;
    --duo-violet-border: #6d28d9;
    --duo-violet-hover: #a78bfa;
    --duo-violet-active: #5b21b6;
    --duo-violet-glow: rgba(139, 92, 246, 0.28);
    --duo-violet-subtle: rgba(139, 92, 246, 0.14);

    /* Golden Amber (Streaks • Flames • XP • Rewards) */
    --duo-amber: #ff9600;
    --duo-amber-border: #cc7800;
    --duo-amber-hover: #ffaa33;
    --duo-amber-active: #b36800;
    --duo-amber-glow: rgba(255, 150, 0, 0.32);
    --duo-amber-subtle: rgba(255, 150, 0, 0.14);

    /* Coral Red (Recording Pulse • Mistakes • Warnings) */
    --duo-red: #ff4b4b;
    --duo-red-border: #d93838;
    --duo-red-hover: #ff6e6e;
    --duo-red-active: #b92b2b;
    --duo-red-glow: rgba(255, 75, 75, 0.32);
    --duo-red-subtle: rgba(255, 75, 75, 0.14);

    /* Sky Blue (Piper TTS • Voice Playback) */
    --duo-blue: #1cb0f6;
    --duo-blue-border: #1899d6;
    --duo-blue-hover: #4dc5ff;
    --duo-blue-active: #1382b8;
    --duo-blue-glow: rgba(28, 176, 246, 0.28);
    --duo-blue-subtle: rgba(28, 176, 246, 0.14);

    /* Borders & Lines */
    --border-card: #233454;
    --border-card-bottom: #1a2842;
    --border-subtle: #1c2b47;
    --border-focus: #00d68f;

    /* Text System */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-dark: #0f172a;

    /* Layout Dimensions */
    --sidebar-width: 260px;
    --stats-panel-width: 330px;
    --top-bar-height: 70px;

    /* Fonts */
    --font-display: 'Outfit', 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Radii */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.12s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Base Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    outline: none;
    color: inherit;
}

input,
textarea,
select {
    font-family: inherit;
    outline: none;
    border: none;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ==========================================================================
   APP CONTAINER & 3-COLUMN DUOLINGO WEB GRID
   ========================================================================== */
.app-layout {
    display: flex;
    height: 100vh;
    height: 100dvh;
    width: 100%;
    background-color: var(--bg-canvas);
    overflow: hidden;
}

/* ==========================================================================
   LEFT SIDEBAR (Duolingo Web Navigation) - Fixed in Place
   ========================================================================== */
.app-sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    max-width: var(--sidebar-width);
    height: 100vh;
    height: 100dvh;
    position: sticky;
    top: 0;
    left: 0;
    background-color: var(--bg-sidebar);
    border-right: 2px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    z-index: 100;
    user-select: none;
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--border-card) transparent;
}

/* Sidebar Brand Header */
.sidebar-header {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 2px solid var(--border-subtle);
}

.brand-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    transition: color var(--transition-fast);
}

.brand-back-link:hover {
    color: var(--duo-green);
}

.brand-logo-duo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-mascot-avatar {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 214, 143, 0.25), rgba(139, 92, 246, 0.2));
    border: 2px solid var(--duo-green-border);
    padding: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px var(--duo-green-glow);
    transition: transform var(--transition-bounce);
}

.brand-logo-duo:hover .brand-mascot-avatar {
    transform: scale(1.08) rotate(4deg);
}

.brand-mascot-avatar img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-title-wrap {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--duo-green);
    line-height: 1;
}

.brand-title .brand-accent {
    color: var(--text-primary);
}

.brand-sub {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-top: 2px;
}

/* Navigation List */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    width: 100%;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 12px 2px;
}

/* Duolingo Chunky 3D Nav Items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 13.5px;
    font-weight: 800;
    letter-spacing: 0.3px;
    color: var(--text-secondary);
    text-transform: uppercase;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    width: 100%;
    box-sizing: border-box;
    text-align: left;
}

.nav-item:hover {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

.nav-icon-badge {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.nav-item>span:not(.nav-item-badge) {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.nav-item.active {
    background-color: var(--duo-green-subtle);
    border-color: var(--duo-green);
    color: var(--duo-green);
}

.nav-item.active .nav-icon-badge {
    background-color: var(--duo-green);
    border-color: var(--duo-green-border);
    color: var(--text-dark);
    box-shadow: 0 4px 10px var(--duo-green-glow);
}

.nav-item-badge {
    margin-left: auto;
    font-size: 10px;
    font-weight: 900;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    background-color: var(--bg-inset);
    color: var(--text-muted);
    flex-shrink: 0;
    white-space: nowrap;
}

.nav-item.active .nav-item-badge {
    background-color: var(--duo-green);
    color: var(--text-dark);
}

/* Sidebar User Widget */
.sidebar-user-section {
    margin-top: auto;
    padding-top: 16px;
    border-top: 2px solid var(--border-subtle);
    width: 100%;
    box-sizing: border-box;
}

.user-card-box {
    width: 100%;
    box-sizing: border-box;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-md);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform var(--transition-fast);
}

.user-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-width: 0;
}

.user-avatar-circle {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--duo-green), var(--duo-violet));
    color: #fff;
    font-weight: 900;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.user-avatar-circle.guest-avatar {
    background: var(--bg-inset);
    border: 2px dashed var(--border-card);
    color: var(--text-muted);
    flex-shrink: 0;
}

.user-text-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex: 1;
    min-width: 0;
}

.user-name-title {
    font-weight: 800;
    font-size: 13px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email-sub {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Chunky 3D Auth Button */
.btn-duo-auth {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-weight: 800;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    color: var(--text-dark);
    transition: all var(--transition-fast);
}

.btn-duo-auth:hover {
    background-color: var(--duo-green-hover);
}

.btn-duo-auth:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-duo-logout {
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-weight: 800;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-subtle);
    border-bottom: 3px solid var(--border-subtle);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.btn-duo-logout:hover {
    background-color: var(--duo-red-subtle);
    border-color: var(--duo-red-border);
    color: var(--duo-red);
}

.btn-duo-logout:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

/* ==========================================================================
   MAIN CONTENT WRAPPER (Center Column + Top Bar)
   ========================================================================== */
.main-content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

/* Top App Bar */
.top-nav-bar {
    height: var(--top-bar-height);
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-sidebar);
    border-bottom: 2px solid var(--border-subtle);
    flex-shrink: 0;
    z-index: 90;
}

.top-nav-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    color: var(--text-primary);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.view-header-title {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.view-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.view-breadcrumb {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

/* Top Bar Gamification Quick Pills (Visible on Top Bar) */
.top-nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.stat-pill:hover {
    transform: translateY(-1px);
}

.stat-pill:active {
    transform: translateY(1px);
    border-bottom-width: 2px;
}

.stat-pill.pill-streak {
    color: var(--duo-amber);
    border-color: rgba(255, 150, 0, 0.35);
}

.stat-pill.pill-streak i {
    color: var(--duo-amber);
    filter: drop-shadow(0 2px 6px var(--duo-amber-glow));
}

.stat-pill.pill-xp {
    color: var(--duo-green);
    border-color: rgba(0, 214, 143, 0.35);
}

.stat-pill.pill-xp i {
    color: var(--duo-green);
    filter: drop-shadow(0 2px 6px var(--duo-green-glow));
}

.stat-pill.pill-goal {
    color: var(--duo-blue);
    border-color: rgba(28, 176, 246, 0.35);
}

.stat-pill.pill-goal i {
    color: var(--duo-blue);
}

/* Toggle Streak & Quests Panel Button in Top Bar */
.top-streak-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    background-color: var(--bg-card);
    border: 2px solid rgba(255, 150, 0, 0.4);
    border-bottom: 3px solid rgba(255, 150, 0, 0.7);
    color: var(--duo-amber);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.top-streak-toggle-btn:hover {
    background-color: rgba(255, 150, 0, 0.12);
    border-color: var(--duo-amber);
    transform: translateY(-1px);
}

.top-streak-toggle-btn:active {
    transform: translateY(1px);
    border-bottom-width: 2px;
}

.top-streak-toggle-btn .streak-toggle-chevron {
    font-size: 11px;
    transition: transform var(--transition-base);
}

.top-streak-toggle-btn.panel-closed .streak-toggle-chevron {
    transform: rotate(180deg);
}

/* User pill & dropdown menu in top bar */
.top-auth-dropdown-wrap {
    position: relative;
    display: inline-flex;
}

.top-auth-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    background-color: var(--duo-green-subtle);
    border: 2px solid var(--duo-green-border);
    border-bottom: 3px solid var(--duo-green-border);
    color: var(--duo-green);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.top-auth-pill:hover {
    background-color: var(--duo-green);
    color: var(--text-dark);
}

.top-auth-caret {
    font-size: 10px;
    opacity: 0.85;
}

.top-auth-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 250;
    min-width: 220px;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-md);
    padding: 12px;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.65);
    display: flex;
    flex-direction: column;
    gap: 10px;
    animation: fadeInDropdown 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.top-auth-dropdown-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.top-auth-avatar {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.top-auth-user-meta {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.top-auth-user-meta strong {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.top-auth-user-meta span {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.top-auth-dropdown-divider {
    height: 1px;
    background-color: var(--border-subtle);
}

.top-auth-signout-btn {
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background-color: var(--duo-red-subtle);
    border: 1px solid var(--duo-red-border);
    border-bottom: 3px solid var(--duo-red-border);
    color: var(--duo-red);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.top-auth-signout-btn:hover {
    background-color: var(--duo-red);
    color: #fff;
}

.top-auth-signout-btn:active {
    transform: translateY(1px);
    border-bottom-width: 2px;
}

/* Content Area with Center Views and Right Panel */
.content-body-layout {
    display: flex;
    flex: 1;
    min-height: 0;
    height: calc(100vh - var(--top-bar-height));
    height: calc(100dvh - var(--top-bar-height));
    background-color: var(--bg-canvas);
    position: relative;
    overflow: hidden;
}

.views-viewport {
    flex: 1;
    min-width: 0;
    height: 100%;
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border-card) transparent;
}

.views-viewport::-webkit-scrollbar {
    width: 8px;
}

.views-viewport::-webkit-scrollbar-track {
    background: transparent;
}

.views-viewport::-webkit-scrollbar-thumb {
    background: var(--border-card);
    border-radius: 4px;
}

.views-viewport::-webkit-scrollbar-thumb:hover {
    background: var(--duo-green-border);
}

/* ==========================================================================
   RIGHT STATS & GAMIFICATION PANEL (Duolingo Web Sidebar) - Collapsible
   ========================================================================== */
.duo-stats-panel {
    width: var(--stats-panel-width);
    min-width: var(--stats-panel-width);
    max-width: var(--stats-panel-width);
    flex-shrink: 0;
    box-sizing: border-box;
    padding: 20px;
    background-color: var(--bg-sidebar);
    border-left: 2px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    overflow-x: hidden;
    user-select: none;
    transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1),
        min-width 0.35s cubic-bezier(0.16, 1, 0.3, 1),
        max-width 0.35s cubic-bezier(0.16, 1, 0.3, 1),
        padding 0.35s ease,
        opacity 0.25s ease,
        border-left-width 0.3s ease;
}

.duo-stats-panel.collapsed {
    width: 0 !important;
    min-width: 0 !important;
    max-width: 0 !important;
    padding: 0 !important;
    border-left-width: 0 !important;
    border-left-color: transparent !important;
    overflow: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

/* Top Bar inside stats panel with close button */
.stats-panel-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.stats-panel-header-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.stats-panel-header-title i {
    color: var(--duo-amber);
}

.btn-close-stats-panel {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.btn-close-stats-panel:hover {
    color: var(--duo-red);
    background-color: var(--duo-red-subtle);
    border-color: var(--duo-red-border);
    transform: scale(1.05);
}

/* Gamified Card Container */
.duo-stat-card {
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
    transition: transform var(--transition-fast);
}

.duo-stat-card:hover {
    border-color: var(--border-main);
}

/* Card Header */
.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-width: 0;
}

.stat-card-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    white-space: nowrap;
}

.stat-card-title i {
    font-size: 16px;
    flex-shrink: 0;
}

.stat-card-title.streak-title i {
    color: var(--duo-amber);
}

.stat-card-title.quest-title i {
    color: var(--duo-green);
}

/* Streak Card Elements */
.streak-hero-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 6px 0;
    width: 100%;
    min-width: 0;
}

.streak-flame-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(255, 150, 0, 0.25), rgba(255, 75, 75, 0.25));
    border: 2px solid var(--duo-amber-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--duo-amber);
    box-shadow: 0 4px 16px var(--duo-amber-glow);
    animation: flamePulse 2.4s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes flamePulse {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 4px rgba(255, 150, 0, 0.4));
    }

    50% {
        transform: scale(1.08);
        filter: drop-shadow(0 0 12px rgba(255, 150, 0, 0.7));
    }
}

.streak-hero-text {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.streak-number {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.1;
    white-space: nowrap;
}

.streak-tagline {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    line-height: 1.35;
    word-break: break-word;
}

/* 7-Day Streak Dot Trail */
.streak-week-trail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4px;
    padding-top: 8px;
    border-top: 1px solid var(--border-subtle);
    width: 100%;
    box-sizing: border-box;
}

.streak-day-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.day-label {
    font-size: 10px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    text-align: center;
}

.day-circle {
    width: 28px;
    height: 28px;
    max-width: 100%;
    border-radius: var(--radius-full);
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.streak-day-node.active .day-circle {
    background-color: var(--duo-amber);
    border-color: var(--duo-amber-border);
    color: var(--text-dark);
    box-shadow: 0 2px 8px var(--duo-amber-glow);
}

.streak-day-node.today .day-label {
    color: var(--duo-green);
    font-weight: 900;
}

.streak-day-node.today .day-circle {
    border-color: var(--duo-green);
    border-width: 2px;
}

/* Daily Quest Card */
.quest-meta-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 13px;
    font-weight: 800;
    width: 100%;
    min-width: 0;
}

.quest-desc {
    color: var(--text-secondary);
    white-space: nowrap;
}

.quest-fraction {
    font-family: var(--font-display);
    color: var(--duo-green);
    font-weight: 900;
    white-space: nowrap;
}

/* Duolingo Chunky Progress Bar */
.duo-progress-track {
    width: 100%;
    box-sizing: border-box;
    height: 18px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.duo-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00d68f, #14e6a8);
    border-radius: var(--radius-full);
    position: relative;
    transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 0 10px var(--duo-green-glow);
}

.duo-progress-fill::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 4px;
    right: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-full);
}

.btn-edit-goal-link {
    font-size: 11px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    margin-left: auto;
    transition: color var(--transition-fast);
    flex-shrink: 0;
    white-space: nowrap;
}

.btn-edit-goal-link:hover {
    color: var(--duo-green);
}

/* Mascot Speech Bubble Card */
.mascot-companion-card {
    background: linear-gradient(135deg, rgba(14, 23, 42, 0.9), rgba(22, 32, 53, 0.9));
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    gap: 12px;
    align-items: center;
    position: relative;
    width: 100%;
    box-sizing: border-box;
    min-width: 0;
}

.mascot-figure-box {
    width: 58px;
    height: 58px;
    flex-shrink: 0;
    transition: transform var(--transition-bounce);
}

.mascot-companion-card:hover .mascot-figure-box {
    transform: translateY(-4px) scale(1.05);
}

.mascot-figure-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

.mascot-speech-bubble {
    background-color: var(--bg-card-elevated);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    position: relative;
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.mascot-speech-bubble::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-right: 8px solid var(--border-card);
}

.mascot-speech-bubble::after {
    content: '';
    position: absolute;
    left: -5px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-right: 6px solid var(--bg-card-elevated);
}

/* Quick Stats Grid */
.duo-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
    box-sizing: border-box;
}

.grid-stat-box {
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    border-radius: var(--radius-md);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.grid-stat-label {
    font-size: 11px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.grid-stat-val {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
    white-space: nowrap;
}

/* ==========================================================================
   VIEW 1: VOICE STUDIO (Split Screen: Left Rec | Right Resp)
   ========================================================================== */
.view-container {
    width: 100%;
}

/* ==========================================================================
   SINGLE-FLOW CENTERED VOICE STUDIO
   ========================================================================== */
.studio-single-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    gap: 20px;
    padding-bottom: 30px;
}

.studio-card-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
    animation: fadeInFlow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInFlow {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.99);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.studio-panel-header {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.panel-header-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

/* Teacher & Study Settings Popover Dropdown */
.settings-dropdown-anchor {
    position: relative;
}

.btn-settings-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    color: var(--text-secondary);
    font-size: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-settings-icon:hover {
    color: var(--duo-green);
    border-color: var(--duo-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px var(--duo-green-glow);
}

.btn-settings-icon:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.settings-dropdown-menu {
    position: absolute;
    right: 0;
    top: 52px;
    z-index: 150;
    width: 320px;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    gap: 14px;
    animation: fadeInDropdown 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInDropdown {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.dropdown-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-subtle);
}

.dropdown-header i {
    color: var(--duo-green);
    margin-right: 6px;
}

.btn-dropdown-close {
    width: 26px;
    height: 26px;
    border-radius: var(--radius-full);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: all var(--transition-fast);
}

.btn-dropdown-close:hover {
    color: var(--duo-red);
    background-color: var(--duo-red-subtle);
}

.dropdown-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dropdown-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dropdown-item label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 800;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dropdown-item label i {
    color: var(--duo-violet);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-subtle);
    margin: 2px 0;
}

/* Loading Card Centered */
.studio-loading-card {
    width: 100%;
    max-width: 680px;
    margin: 20px auto;
}

/* Result View Container */
.studio-result-container {
    width: 100%;
    max-width: 760px;
}

.result-action-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 0 8px;
    width: 100%;
}

.btn-record-again {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    color: var(--text-dark);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 14px var(--duo-green-glow);
}

.btn-record-again:hover {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px var(--duo-green-glow);
}

.btn-record-again:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.result-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 800;
    background-color: var(--duo-blue-subtle);
    color: var(--duo-blue);
    border: 1px solid var(--duo-blue-border);
}

/* Perfect Sentence Celebration Card (When No Mistakes Found) */
.perfect-celebration-card {
    background: linear-gradient(135deg, rgba(0, 214, 143, 0.12) 0%, rgba(15, 23, 42, 0.6) 100%);
    border: 2px solid rgba(0, 214, 143, 0.35);
    border-bottom: 4px solid rgba(0, 214, 143, 0.5);
    border-radius: var(--radius-lg);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 4px 24px rgba(0, 214, 143, 0.12);
}

.perfect-banner {
    display: flex;
    align-items: center;
    gap: 14px;
}

.perfect-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green-subtle);
    border: 2px solid var(--duo-green-border);
    color: var(--duo-green);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px var(--duo-green-glow));
}

.perfect-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 900;
    color: var(--duo-green);
    letter-spacing: -0.3px;
}

.perfect-sub {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.perfect-sentence-box {
    background-color: var(--bg-inset);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.perfect-quote-mark {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 900;
    color: var(--duo-green);
    line-height: 1;
}

.perfect-quote-text {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
}

.perfect-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Backward compatibility for split layout (if used elsewhere) */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.panel {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.panel-header {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.panel-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    align-self: flex-start;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.tag-record {
    background-color: var(--duo-red-subtle);
    color: var(--duo-red);
    border: 1px solid var(--duo-red-border);
}

.tag-response {
    background-color: var(--duo-green-subtle);
    color: var(--duo-green);
    border: 1px solid var(--duo-green-border);
}

.panel-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.4px;
}

.panel-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Duolingo Studio Card Base */
.duo-card {
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transition: border-color var(--transition-fast);
}

.duo-card:hover {
    border-color: var(--border-main);
}

/* Card Section Header */
.card-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.card-title-sm {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 0;
}

.card-title-sm i {
    color: var(--duo-green);
}

/* Recorder Station Center */
.recorder-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 0 10px;
    gap: 14px;
}

/* Chunky Duolingo Giant Microphone Button */
.record-btn-halo {
    position: relative;
    padding: 10px;
}

.record-btn {
    width: 96px;
    height: 96px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green);
    border: 3px solid var(--duo-green-border);
    border-bottom: 6px solid var(--duo-green-border);
    color: var(--text-dark);
    font-size: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 8px 24px var(--duo-green-glow);
    position: relative;
}

.record-btn:hover {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px var(--duo-green-glow);
}

.record-btn:active {
    transform: translateY(3px);
    border-bottom-width: 3px;
}

/* Recording Pulse Mode */
.record-btn.recording {
    background-color: var(--duo-red);
    border-color: var(--duo-red-border);
    border-bottom-color: var(--duo-red-border);
    color: #fff;
    box-shadow: 0 0 0 0 rgba(255, 75, 75, 0.7);
    animation: recordPulse 1.6s infinite;
}

@keyframes recordPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 75, 75, 0.7);
    }

    70% {
        box-shadow: 0 0 0 20px rgba(255, 75, 75, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 75, 75, 0);
    }
}

.record-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.record-timer {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    background-color: var(--bg-inset);
    padding: 3px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

.record-status {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
}

/* Waveform Visualizer Canvas */
.visualizer-box {
    width: 100%;
    height: 48px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visualizer-box canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Audio Player */
.playback-box {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.playback-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 800;
    color: var(--duo-blue);
    text-transform: uppercase;
}

.custom-audio-player {
    width: 100%;
    height: 38px;
    border-radius: var(--radius-sm);
}

/* Divider */
.divider-row {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: 8px 0;
}

.divider-row::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background-color: var(--border-subtle);
}

.divider-row span {
    position: relative;
    background-color: var(--bg-card);
    padding: 0 12px;
    font-size: 11px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* Upload Dropzone */
.upload-dropzone {
    width: 100%;
}

.upload-btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius-md);
    background-color: var(--bg-inset);
    border: 2px dashed var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.upload-btn:hover {
    border-color: var(--duo-green);
    color: var(--duo-green);
    background-color: var(--duo-green-subtle);
}

/* Settings Card */
.settings-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.setting-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
}

.setting-row label i {
    color: var(--duo-violet);
}

.teacher-select {
    background-color: var(--bg-inset);
    color: var(--text-primary);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.toggles-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    padding-top: 4px;
}

.study-checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
}

.study-checkbox-label input[type="checkbox"] {
    accent-color: var(--duo-green);
    width: 16px;
    height: 16px;
}

/* Tips Card */
.study-tips-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.study-tips-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.study-tips-list li i {
    color: var(--duo-green);
    font-size: 15px;
    margin-top: 2px;
}

.study-tips-list li strong {
    color: var(--text-primary);
}

/* Right Panel: Output & Teacher Response */
.textarea-wrap {
    width: 100%;
}

.transcription-textarea {
    width: 100%;
    min-height: 110px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 14px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
    resize: vertical;
    transition: border-color var(--transition-fast);
}

.transcription-textarea:focus {
    border-color: var(--duo-green);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    font-size: 11px;
    font-weight: 800;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-inset);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.meta-duration {
    color: var(--duo-blue);
    border-color: rgba(28, 176, 246, 0.3);
}

.meta-lang {
    color: var(--duo-green);
    border-color: rgba(0, 214, 143, 0.3);
}

/* 3D Action Buttons (Copy / Clear) */
.pill-btn {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.pill-btn:hover:not(:disabled) {
    background-color: var(--bg-card-elevated);
    color: var(--text-primary);
}

.pill-btn:active:not(:disabled) {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.pill-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.output-bottom-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 6px;
    flex-wrap: wrap;
}

.count-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
}

/* Duolingo Chunky Check with Teacher Button */
.btn-check-teacher {
    padding: 12px 20px;
    border-radius: var(--radius-md);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 5px solid var(--duo-green-border);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 14px var(--duo-green-glow);
    transition: all var(--transition-fast);
}

.btn-check-teacher:hover:not(:disabled) {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px var(--duo-green-glow);
}

.btn-check-teacher:active:not(:disabled) {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-check-teacher:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading States */
.loading-box,
.teacher-loading-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-lg);
}

.duo-spinner {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    border: 4px solid var(--border-card);
    border-top-color: var(--duo-green);
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

.duo-spinner.spinner-violet {
    border-top-color: var(--duo-violet);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-desc {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.loading-desc strong {
    font-size: 14px;
    color: var(--text-primary);
}

.loading-desc span {
    font-size: 12px;
    color: var(--text-muted);
}

/* Empty Response Placeholder Card */
.empty-response-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 36px 24px;
    gap: 14px;
}

.empty-mascot-wrap {
    width: 90px;
    height: 90px;
    margin-bottom: 6px;
    transition: transform var(--transition-bounce);
}

.empty-response-card:hover .empty-mascot-wrap {
    transform: scale(1.08) rotate(-3deg);
}

.empty-mascot-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.4));
}

.empty-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
}

.empty-text {
    font-size: 13px;
    color: var(--text-secondary);
    max-width: 440px;
    line-height: 1.5;
}

.features-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
    width: 100%;
    margin-top: 14px;
    text-align: left;
}

.feature-item {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.icon-teal {
    background-color: var(--duo-green-subtle);
    color: var(--duo-green);
}

.icon-violet {
    background-color: var(--duo-violet-subtle);
    color: var(--duo-violet);
}

.icon-amber {
    background-color: var(--duo-amber-subtle);
    color: var(--duo-amber);
}

.feature-item strong {
    font-size: 13px;
    color: var(--text-primary);
}

.feature-item p {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.35;
}

/* AI Teacher Results Card */
.teacher-card {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.badge-mistakes {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    background-color: var(--duo-red-subtle);
    border: 1px solid var(--duo-red-border);
    color: var(--duo-red);
}

.badge-perfect {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    background-color: var(--duo-green-subtle);
    border: 1px solid var(--duo-green-border);
    color: var(--duo-green);
}

.teacher-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Duolingo Before / After Comparison */
.comparison-row {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.compare-block {
    flex: 1;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.compare-block.before-block {
    border-color: rgba(255, 75, 75, 0.4);
}

.compare-block.after-block {
    border-color: rgba(0, 214, 143, 0.5);
    background: linear-gradient(135deg, rgba(13, 21, 39, 0.9), rgba(0, 214, 143, 0.05));
}

.block-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.tag-before {
    color: var(--duo-red);
}

.tag-after {
    color: var(--duo-green);
}

.compare-text {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
}

.compare-arrow-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 18px;
}

.mobile-arrow {
    display: none;
}

.after-actions-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 4px;
}

/* 3D Resay with Piper TTS Button */
.btn-resay-piper {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background-color: var(--duo-blue);
    border: 2px solid var(--duo-blue-border);
    border-bottom: 4px solid var(--duo-blue-border);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-resay-piper:hover {
    background-color: var(--duo-blue-hover);
}

.btn-resay-piper:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-copy-fixed {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.btn-copy-fixed:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

/* Grammar Mistakes List */
.feedback-subgroup {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.subgroup-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.mistakes-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mistake-card {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-left: 4px solid var(--duo-red);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mistake-comparison {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 700;
    flex-wrap: wrap;
}

.diff-original {
    color: var(--text-primary);
}

.diff-arrow {
    color: var(--text-muted);
    font-size: 12px;
}

.diff-corrected {
    color: var(--text-primary);
}

.rule-explanation {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Rule Examples Section */
.rule-examples-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.rule-example-card {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-left: 4px solid var(--duo-blue);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rule-example-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.rule-example-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--duo-blue);
    background-color: var(--duo-blue-subtle);
    border: 1px solid var(--duo-blue-border);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.rule-example-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 0;
    padding: 0;
}

.rule-example-items li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
}

.rule-example-items li i {
    color: var(--duo-green);
    font-size: 13px;
    margin-top: 3px;
    flex-shrink: 0;
}

/* Suggestions List */
.suggestions-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.suggestions-list li {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-left: 4px solid var(--duo-amber);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-primary);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.suggestions-list li i {
    color: var(--duo-amber);
    margin-top: 2px;
}

/* Teacher Note Card */
.teacher-note-card {
    background-color: var(--duo-violet-subtle);
    border: 2px solid var(--duo-violet-border);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.teacher-note-card i {
    color: var(--duo-violet);
    font-size: 18px;
}

/* ==========================================================================
   VIEW 2: REAL-WORLD DIALOGUE CONVERSATIONS STUDIO
   ========================================================================== */

/* Start Screen Welcome Card (Centered Logo + Start & History Buttons) */
.dialogue-start-card {
    background: linear-gradient(145deg, var(--bg-card) 0%, #121a2c 100%);
    border: 2px solid var(--border-card);
    border-bottom: 6px solid var(--border-card-bottom);
    border-radius: var(--radius-xl);
    padding: 60px 24px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 40px var(--duo-green-glow);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 480px;
    animation: startCardFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes startCardFadeIn {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.99);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.dialogue-start-center-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 36px;
    text-align: center;
    max-width: 420px;
    width: 100%;
}

.dialogue-start-logo-box {
    position: relative;
    width: 180px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.start-logo-halo {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--duo-green-glow) 0%, rgba(0, 214, 143, 0.1) 50%, transparent 75%);
    filter: blur(22px);
    pointer-events: none;
    animation: pulseHalo 3.5s ease-in-out infinite alternate;
}

@keyframes pulseHalo {
    0% {
        transform: scale(0.92);
        opacity: 0.6;
    }

    100% {
        transform: scale(1.15);
        opacity: 0.95;
    }
}

.dialogue-start-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.55));
    animation: floatLogoCenter 4s ease-in-out infinite alternate;
}

@keyframes floatLogoCenter {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-10px) rotate(-1.5deg);
    }

    100% {
        transform: translateY(4px) rotate(1.5deg);
    }
}

.dialogue-start-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.mission-ai-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.25), rgba(59, 130, 246, 0.25));
    border: 1.5px solid rgba(168, 85, 247, 0.5);
    color: #c084fc;
    font-family: var(--font-display);
    font-size: 11.5px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    box-shadow: 0 2px 10px rgba(168, 85, 247, 0.25);
}

.dialogue-start-heading {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.25;
    margin: 0;
}

.dialogue-start-sub {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 380px;
    margin: 0;
}

.dialogue-start-actions-centered {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    width: 100%;
    max-width: 300px;
    max-width: 320px;
}

.btn-start-dialogue-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 16px 32px;
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 5px solid var(--duo-green-border);
    border-radius: var(--radius-md);
    color: #0f172a;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 900;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.15s ease;
    box-shadow: 0 4px 18px var(--duo-green-glow);
}

.btn-start-dialogue-primary:hover {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 26px var(--duo-green-glow);
}

.btn-start-dialogue-primary:active {
    transform: translateY(3px);
    border-bottom-width: 2px;
}

.btn-start-dialogue-primary:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.btn-start-dialogue-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 24px;
    background-color: var(--bg-card-elevated);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-start-dialogue-secondary:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--duo-green-border);
    color: var(--duo-green);
    transform: translateY(-2px);
}

.btn-start-dialogue-secondary:active {
    transform: translateY(3px);
    border-bottom-width: 2px;
}

/* ==========================================================================
   STAGE 1: PRE-CHAT MISSION BRIEFING CARD (Roles & Objective Before Starting)
   ========================================================================== */
.dialogue-briefing-card {
    background: linear-gradient(145deg, var(--bg-card) 0%, #111a2e 100%);
    border: 2px solid var(--border-card);
    border-bottom: 6px solid var(--border-card-bottom);
    border-radius: var(--radius-xl);
    padding: 32px 36px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 35px rgba(168, 85, 247, 0.15);
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    animation: startCardFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.briefing-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.briefing-badges-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.mission-difficulty-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    background: rgba(239, 68, 68, 0.15);
    border: 1.5px solid rgba(239, 68, 68, 0.45);
    color: #f87171;
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.briefing-actions-top {
    display: flex;
    align-items: center;
    gap: 10px;
}

.briefing-header-block {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.briefing-step-tag {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--duo-green);
    text-transform: uppercase;
}

.briefing-mission-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.25;
    margin: 0;
    letter-spacing: -0.4px;
}

.briefing-situation-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    max-width: 860px;
}

/* Roles Explanation Grid */
.briefing-roles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.briefing-role-card {
    background: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: transform 0.2s ease;
}

.briefing-role-card:hover {
    transform: translateY(-2px);
}

.role-card-user {
    border-color: rgba(0, 214, 143, 0.4);
    border-bottom-color: var(--duo-green-border);
}

.role-card-ai {
    border-color: rgba(245, 158, 11, 0.45);
    border-bottom-color: var(--duo-amber-border);
}

.briefing-role-header {
    display: flex;
    align-items: center;
    gap: 14px;
}

.briefing-role-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.role-card-user .briefing-role-icon {
    background: var(--duo-green-subtle);
    border: 1.5px solid var(--duo-green-border);
    color: var(--duo-green);
}

.role-card-ai .briefing-role-icon {
    background: var(--duo-amber-subtle);
    border: 1.5px solid var(--duo-amber-border);
    color: var(--duo-amber);
}

.briefing-role-tag {
    font-size: 10.5px;
    font-weight: 900;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 2px;
}

.role-card-user .briefing-role-tag {
    color: var(--duo-green);
}

.role-card-ai .briefing-role-tag {
    color: var(--duo-amber);
}

.briefing-role-name {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
}

.briefing-role-desc {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.55;
    margin: 0;
}

/* Mission Objective Card */
.briefing-objective-card {
    background: linear-gradient(145deg, #18233c 0%, #131c30 100%);
    border: 2px solid rgba(59, 130, 246, 0.45);
    border-bottom: 5px solid var(--duo-blue-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.briefing-objective-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.objective-target-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--duo-blue-subtle);
    border: 1.5px solid var(--duo-blue-border);
    color: var(--duo-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.objective-header-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.objective-eyebrow {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--duo-blue);
}

.objective-main-goal {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.45;
    margin: 0;
}

.briefing-criteria-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.criteria-section-title {
    font-size: 12.5px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.criteria-section-title i {
    color: var(--duo-green);
}

.briefing-criteria-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.briefing-criteria-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
    color: var(--text-primary);
    line-height: 1.45;
}

.briefing-criteria-list li i {
    color: var(--duo-green);
    margin-top: 3px;
    flex-shrink: 0;
}

/* Pre-Chat Action Footer */
.briefing-footer-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 8px;
}

.btn-accept-mission-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 36px;
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 5px solid var(--duo-green-border);
    border-radius: var(--radius-md);
    color: #0f172a;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 900;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.15s ease;
    box-shadow: 0 4px 18px var(--duo-green-glow);
}

.btn-accept-mission-primary:hover {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--duo-green-glow);
}

.btn-accept-mission-primary:active {
    transform: translateY(3px);
    border-bottom-width: 2px;
}

.btn-reroll-mission-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 24px;
    background-color: var(--bg-card-elevated);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-reroll-mission-secondary:hover {
    background-color: var(--bg-card-hover);
    border-color: #a855f7;
    color: #c084fc;
    transform: translateY(-2px);
}

.btn-reroll-mission-secondary:active {
    transform: translateY(3px);
    border-bottom-width: 2px;
}

.btn-reroll-mission-secondary:disabled,
.btn-reroll-mission-secondary.btn-loading,
.btn-accept-mission-primary:disabled,
.btn-accept-mission-primary.btn-loading,
.btn-mission-next-primary:disabled,
.btn-mission-next-primary.btn-loading {
    opacity: 0.65;
    cursor: not-allowed !important;
    pointer-events: none !important;
    transform: none !important;
    box-shadow: none !important;
    filter: grayscale(0.2);
}

.dialogue-briefing-card.briefing-loading {
    opacity: 0.72;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

/* ==========================================================================
   LIVE MISSION HUD (Shown Above Live Chat Stream)
   ========================================================================== */
.dialogue-mission-hud {
    background: linear-gradient(135deg, #131c30 0%, #0f172a 100%);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.hud-top-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.hud-title-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hud-mission-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.3;
    margin: 0;
}

.hud-mission-situation {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.45;
    margin: 0;
}

.hud-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
    flex-shrink: 0;
}

.hud-status-pill.status-in-progress {
    background: rgba(59, 130, 246, 0.18);
    border: 1.5px solid rgba(59, 130, 246, 0.45);
    color: #60a5fa;
}

.hud-status-pill.status-accomplished {
    background: var(--duo-green-subtle);
    border: 1.5px solid var(--duo-green-border);
    color: var(--duo-green);
    animation: celebratePulse 1.8s infinite ease-in-out;
}

@keyframes celebratePulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 10px var(--duo-green-glow);
    }

    50% {
        transform: scale(1.04);
        box-shadow: 0 0 20px var(--duo-green-glow);
    }
}

.hud-roles-strip {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.hud-role-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    border-radius: var(--radius-md);
    font-size: 12px;
    background: var(--bg-inset);
    border: 1px solid var(--border-card);
}

.hud-role-chip.chip-user i {
    color: var(--duo-green);
}

.hud-role-chip.chip-ai i {
    color: var(--duo-amber);
}

.hud-objective-bar {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 10px 14px;
}

.hud-objective-text-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.hud-goal-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
}

.hud-goal-label i {
    color: var(--duo-blue);
    font-size: 14px;
}

.hud-goal-label strong {
    color: var(--duo-blue);
}

.hud-progress-pct {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 900;
    color: var(--duo-green);
}

.mission-progress-track {
    width: 100%;
    height: 8px;
    background: var(--bg-inset);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.mission-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #00d68f);
    border-radius: var(--radius-full);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 10px var(--duo-green-glow);
}

.hud-coach-hint {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.45;
}

.hud-coach-hint i {
    color: var(--duo-amber);
    margin-top: 2px;
    flex-shrink: 0;
}

/* ==========================================================================
   MISSION SUCCESS CELEBRATION BANNER
   ========================================================================== */
.mission-success-banner {
    background: linear-gradient(135deg, rgba(0, 214, 143, 0.18) 0%, rgba(59, 130, 246, 0.18) 100%);
    border: 2px solid var(--duo-green);
    border-bottom: 5px solid var(--duo-green-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    box-shadow: 0 8px 30px var(--duo-green-glow);
    animation: modalPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.mission-success-left {
    display: flex;
    align-items: center;
    gap: 18px;
}

.mission-trophy-badge {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--duo-green);
    color: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 4px 16px var(--duo-green-glow);
    flex-shrink: 0;
    animation: celebrateBob 0.6s ease-in-out infinite alternate;
}

@keyframes celebrateBob {
    0% {
        transform: translateY(0px) rotate(-3deg);
    }

    100% {
        transform: translateY(-4px) rotate(3deg);
    }
}

.mission-success-copy {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mission-success-tag {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--duo-green);
    display: flex;
    align-items: center;
    gap: 6px;
}

.mission-success-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 900;
    color: #ffffff;
    line-height: 1.25;
    margin: 0;
}

.mission-success-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.45;
    margin: 0;
    max-width: 600px;
}

.mission-success-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.btn-mission-next-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-md);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    color: #0f172a;
    font-family: var(--font-display);
    font-size: 13.5px;
    font-weight: 900;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all 0.15s ease;
    box-shadow: 0 4px 14px var(--duo-green-glow);
}

.btn-mission-next-primary:hover {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
}

.btn-mission-next-primary:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-mission-keep-chatting {
    padding: 11px 18px;
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.7);
    border: 1.5px solid var(--border-card);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 12.5px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-mission-keep-chatting:hover {
    color: var(--text-primary);
    border-color: var(--border-card-bottom);
}

@media (max-width: 900px) {
    .dialogue-briefing-card {
        padding: 24px 18px;
    }

    .briefing-roles-grid {
        grid-template-columns: 1fr;
    }

    .mission-success-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .mission-success-actions {
        width: 100%;
        justify-content: flex-start;
    }
}

/* ==========================================================================
   ACTIVE DIALOGUE STUDIO (Talking Logo on Left • Messages & Record on Right)
   ========================================================================== */
.dialogue-studio-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    animation: startCardFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Compact Top Scenario Bar */
.dialogue-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 18px;
    background: linear-gradient(135deg, #17243d, #1a2744);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

/* Main Split Stage Grid */
.dialogue-stage-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: start;
}

/* LEFT PANEL: Talking Logo Character */
.dialogue-character-panel {
    background: linear-gradient(145deg, var(--bg-card), #121a2c);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-xl);
    padding: 22px 18px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    position: sticky;
    top: 20px;
}

.talking-logo-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px 18px;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    overflow: visible;
}

.talking-logo-frame {
    position: relative;
    width: 130px;
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.dialogue-talking-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.5));
}

/* Soundwaves animation when speaking */
.talking-soundwaves {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
    pointer-events: none;
    z-index: 1;
}

.wave-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid var(--duo-green);
    opacity: 0;
    transform: scale(0.9);
}

.talking-logo-container.talking .wave-ring.ring-1 {
    animation: waveExpand 1.6s ease-out infinite;
}

.talking-logo-container.talking .wave-ring.ring-2 {
    animation: waveExpand 1.6s ease-out 0.4s infinite;
}

.talking-logo-container.talking .wave-ring.ring-3 {
    animation: waveExpand 1.6s ease-out 0.8s infinite;
}

@keyframes waveExpand {
    0% {
        transform: scale(0.9);
        opacity: 0.8;
    }

    100% {
        transform: scale(1.6);
        opacity: 0;
    }
}

.talking-logo-container.talking .talking-logo-frame {
    animation: talkingBob 0.35s ease-in-out infinite alternate;
}

@keyframes talkingBob {
    0% {
        transform: scale(1) translateY(0px);
    }

    50% {
        transform: scale(1.06) translateY(-5px) rotate(-1.5deg);
    }

    100% {
        transform: scale(0.98) translateY(2px) rotate(1.5deg);
    }
}

.talking-logo-container.listening .talking-logo-frame {
    animation: listeningPulse 1.2s ease-in-out infinite alternate;
}

@keyframes listeningPulse {
    0% {
        transform: scale(1);
        filter: drop-shadow(0 0 10px rgba(255, 75, 75, 0.45));
    }

    100% {
        transform: scale(1.05);
        filter: drop-shadow(0 0 22px rgba(255, 75, 75, 0.75));
    }
}

.talking-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: var(--duo-green-subtle);
    border: 1px solid var(--duo-green-border);
    color: var(--duo-green);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.3px;
    z-index: 2;
    transition: all 0.2s ease;
}

.talking-logo-container.talking .talking-status-pill {
    background: var(--duo-green-subtle);
    border-color: var(--duo-green);
    color: var(--duo-green);
}

.talking-logo-container.listening .talking-status-pill {
    background: rgba(255, 75, 75, 0.22);
    border-color: var(--duo-red);
    color: var(--duo-red);
}

/* Dedicated Stop / Resume Speech Control Button */
.btn-dialogue-speech-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
    padding: 9px 20px;
    background-color: var(--bg-card-elevated);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.15s ease;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-dialogue-speech-toggle:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--duo-green-border);
    color: var(--duo-green);
    transform: translateY(-2px);
}

.btn-dialogue-speech-toggle:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

/* While AI speech is actively playing: red/coral warning color to stop */
.btn-dialogue-speech-toggle.is-playing {
    background-color: rgba(255, 75, 75, 0.16);
    border-color: var(--duo-red-border);
    border-bottom: 4px solid var(--duo-red-border);
    color: var(--duo-red);
}

.btn-dialogue-speech-toggle.is-playing:hover {
    background-color: var(--duo-red);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--duo-red-glow);
}

/* While speech is paused: emerald pulsing prompt to resume */
.btn-dialogue-speech-toggle.is-paused {
    background-color: var(--duo-green-subtle);
    border-color: var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    color: var(--duo-green);
    animation: resumePulse 1.8s infinite ease-in-out;
}

.btn-dialogue-speech-toggle.is-paused:hover {
    background-color: var(--duo-green);
    color: #0f172a;
    box-shadow: 0 4px 16px var(--duo-green-glow);
}

@keyframes resumePulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.04);
    }
}

/* Stream Header Actions & Quick Toggle */
.stream-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-stream-speech-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-stream-speech-toggle:hover {
    border-color: var(--duo-green-border);
    color: var(--duo-green);
    transform: translateY(-1px);
}

.btn-stream-speech-toggle.is-playing {
    color: var(--duo-red);
    border-color: var(--duo-red-border);
}

.btn-stream-speech-toggle.is-paused {
    color: var(--duo-green);
    border-color: var(--duo-green-border);
}

.dialogue-character-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dialogue-character-info .dialogue-scenario-title {
    font-size: 17px;
    font-weight: 800;
    line-height: 1.35;
    margin: 0;
}

.dialogue-character-info .dialogue-roles-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dialogue-character-info .dialogue-role-pill {
    padding: 8px 12px;
}

.dialogue-character-info .dialogue-situation-desc {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.dialogue-character-info .dialogue-goal-banner {
    padding: 10px 12px;
    font-size: 12px;
}

/* RIGHT PANEL: Live Messages Stream & Voice Dock */
.dialogue-stage-grid .dialogue-stream-card {
    min-height: 560px;
    display: flex;
    flex-direction: column;
    margin: 0;
}

.dialogue-stage-grid .dialogue-chat-stream {
    flex: 1;
    min-height: 380px;
    max-height: 520px;
}

@media (max-width: 900px) {
    .dialogue-stage-grid {
        grid-template-columns: 1fr;
    }

    .dialogue-character-panel {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 16px;
    }

    .talking-logo-container {
        width: 150px;
        flex-shrink: 0;
    }

    .dialogue-character-info {
        flex: 1;
        min-width: 240px;
    }
}

/* Top Scenario Information Card (Duolingo Unit Header Style) */
.dialogue-meta-card {
    background: linear-gradient(135deg, #17243d, #1a2744);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-xl);
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.meta-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.meta-badges-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.scenario-cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    background-color: var(--duo-green-subtle);
    border: 1px solid var(--duo-green-border);
    color: var(--duo-green);
    box-shadow: 0 2px 8px var(--duo-green-glow);
}

.scenario-progress-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-card);
    color: var(--text-secondary);
}

.meta-actions-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 3D Scenario Actions */
.btn-scenario-action {
    padding: 8px 14px;
    border-radius: var(--radius-md);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.btn-scenario-action:hover {
    background-color: var(--duo-green-hover);
}

.btn-scenario-action:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-history-action {
    background-color: var(--bg-inset);
    border-color: var(--border-card);
    border-bottom-color: var(--border-card-bottom);
    color: var(--text-primary);
}

.btn-history-action:hover {
    background-color: var(--bg-card-elevated);
}

.dialogue-scenario-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.4px;
}

.dialogue-situation-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.dialogue-roles-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 0;
}

.dialogue-role-pill {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
}

.dialogue-role-pill i {
    font-size: 20px;
}

.dialogue-role-pill.role-ai {
    border-color: var(--duo-blue-border);
}

.dialogue-role-pill.role-ai i {
    color: var(--duo-blue);
}

.dialogue-role-pill.role-user {
    border-color: var(--duo-green-border);
}

.dialogue-role-pill.role-user i {
    color: var(--duo-green);
}

.role-text-wrap {
    display: flex;
    flex-direction: column;
}

.role-label {
    font-size: 10px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
}

.role-text-wrap strong {
    font-size: 13px;
    color: var(--text-primary);
}

.role-vs-divider {
    color: var(--text-muted);
    font-size: 14px;
}

.dialogue-goal-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--duo-amber-subtle);
    border: 2px solid var(--duo-amber-border);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    font-size: 13px;
    color: var(--text-primary);
}

.dialogue-goal-banner i {
    color: var(--duo-amber);
    font-size: 18px;
}

/* Live Conversation Stream Card */
.dialogue-stream-card {
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 5px solid var(--border-card-bottom);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.stream-card-header {
    padding: 14px 20px;
    background-color: var(--bg-sidebar);
    border-bottom: 2px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stream-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--text-primary);
}

.stream-title i {
    color: var(--duo-green);
}

.stream-hint {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Chat Stream Bubbles */
.dialogue-chat-stream {
    min-height: 340px;
    max-height: 480px;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    background-color: var(--bg-inset);
}

.stream-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 14px;
}

.chat-row {
    display: flex;
    flex-direction: column;
    max-width: 82%;
    gap: 8px;
    animation: bubbleSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes bubbleSlideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-row-ai {
    align-self: flex-start;
}

.chat-row-user {
    align-self: flex-end;
}

/* Duolingo Speech Bubbles */
.chat-bubble {
    border-radius: var(--radius-lg);
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    border: 2px solid transparent;
}

.bubble-ai {
    background-color: var(--bg-card);
    border-color: var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-bottom-left-radius: 4px;
}

.bubble-user {
    background: linear-gradient(135deg, #00d68f, #00b87b);
    border-color: var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    border-bottom-right-radius: 4px;
    color: var(--text-dark);
}

.bubble-meta-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.bubble-user .bubble-meta-header {
    color: rgba(15, 23, 42, 0.7);
}

.qa-turn-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.qa-pill-question {
    background: rgba(88, 204, 2, 0.15);
    color: var(--duo-green);
    border: 1.5px solid rgba(88, 204, 2, 0.4);
}

.qa-pill-answer {
    background: rgba(15, 23, 42, 0.15);
    color: var(--text-dark);
    border: 1.5px solid rgba(15, 23, 42, 0.25);
}

.bubble-text {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
}

.bubble-actions-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 2px;
}

.btn-tts-listen {
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    color: var(--duo-blue);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.btn-tts-listen:hover {
    border-color: var(--duo-blue);
}

.btn-tts-listen:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.btn-tts-listen.playing {
    background-color: var(--duo-blue);
    border-color: var(--duo-blue-border);
    color: #fff;
}

/* AI Teacher Polish Card (Nestled under user bubble) */
.speech-correction-card {
    background-color: var(--bg-card);
    border: 2px solid var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.correction-card-header {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--duo-green);
    letter-spacing: 0.5px;
}

.corrected-speech-text {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.correction-tip-text {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 6px;
    line-height: 1.4;
}

.correction-tip-text i {
    color: var(--duo-amber);
    margin-top: 2px;
}

/* Thinking Indicator */
.dialogue-thinking-row {
    padding: 12px 24px;
    background-color: var(--bg-inset);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 12px;
}

.character-typing-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green-subtle);
    border: 2px solid var(--duo-green-border);
    color: var(--duo-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.character-typing-bubble {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
}

.typing-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green);
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingBounce {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.4;
    }

    40% {
        transform: scale(1.1);
        opacity: 1;
    }
}

/* Voice Response Recording Dock */
.dialogue-dock-section {
    padding: 18px 24px;
    background-color: var(--bg-sidebar);
    border-top: 2px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dock-status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dock-status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
}

.dock-pulse-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green);
    box-shadow: 0 0 8px var(--duo-green-glow);
}

.dock-pulse-dot.recording {
    background-color: var(--duo-red);
    box-shadow: 0 0 10px var(--duo-red-glow);
    animation: recordPulse 1.4s infinite;
}

.dock-timer-badge {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    background-color: var(--bg-inset);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

.dock-visualizer-wrap {
    width: 100%;
    height: 30px;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.dock-visualizer-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.dock-controls-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

/* Chunky Duolingo Dialogue Mic Button */
.dialogue-mic-btn {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 4px solid var(--duo-green-border);
    color: var(--text-dark);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px var(--duo-green-glow);
}

.dialogue-mic-btn:hover {
    background-color: var(--duo-green-hover);
    transform: translateY(-2px);
}

.dialogue-mic-btn:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.dialogue-mic-btn.recording {
    background-color: var(--duo-red);
    border-color: var(--duo-red-border);
    border-bottom-color: var(--duo-red-border);
    color: #fff;
    animation: recordPulse 1.4s infinite;
}

.dock-input-preview-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 6px 8px 6px 14px;
    transition: border-color var(--transition-fast);
}

.dock-input-preview-wrap:focus-within {
    border-color: var(--duo-green);
}

.dock-speech-input {
    flex: 1;
    background: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.dock-send-btn {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 3px solid var(--duo-green-border);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.dock-send-btn:hover {
    background-color: var(--duo-green-hover);
}

.dock-send-btn:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

/* ==========================================================================
   MODALS: AUTH, DIALOGUE HISTORY, GOAL SETTINGS, CELEBRATION
   ========================================================================== */
.modal-overlay,
.auth-modal-overlay,
.dialogue-history-overlay,
.goal-modal-overlay,
.celebrate-modal-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-backdrop,
.auth-modal-backdrop,
.dialogue-history-backdrop,
.goal-modal-backdrop,
.celebrate-modal-backdrop {
    position: absolute;
    inset: 0;
    background-color: rgba(11, 17, 32, 0.85);
    backdrop-filter: blur(8px);
}

.modal-card,
.auth-card,
.dialogue-history-card,
.goal-card,
.celebrate-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 6px solid var(--border-card-bottom);
    border-radius: var(--radius-xl);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    z-index: 10;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    animation: modalPop 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPop {
    from {
        opacity: 0;
        transform: scale(0.92);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-close-btn,
.auth-close-btn,
.btn-close-history,
.btn-close-goal,
.btn-close-celebrate {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover,
.auth-close-btn:hover,
.btn-close-history:hover,
.btn-close-goal:hover,
.btn-close-celebrate:hover {
    color: var(--text-primary);
    border-color: var(--duo-red);
}

/* Auth Header */
.auth-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
}

.auth-badge-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--duo-green-subtle), var(--duo-violet-subtle));
    border: 2px solid var(--duo-green-border);
    color: var(--duo-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 4px 16px var(--duo-green-glow);
}

.auth-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 900;
    color: var(--text-primary);
}

.auth-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 4px;
    gap: 4px;
}

.auth-tab-btn {
    flex: 1;
    padding: 10px;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.auth-tab-btn.active {
    background-color: var(--bg-card);
    color: var(--duo-green);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.auth-alert {
    background-color: var(--duo-red-subtle);
    border: 2px solid var(--duo-red-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--duo-red);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label,
.form-label-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.form-label-row {
    justify-content: space-between;
}

.btn-toggle-password {
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
}

.form-input {
    width: 100%;
    padding: 12px 14px;
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    border-color: var(--duo-green);
}

.auth-submit-btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius-md);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 5px solid var(--duo-green-border);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 6px;
    transition: all var(--transition-fast);
}

.auth-submit-btn:hover {
    background-color: var(--duo-green-hover);
}

.auth-submit-btn:active {
    transform: translateY(2px);
    border-bottom-width: 2px;
}

.auth-footer-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.auth-switch-link {
    color: var(--duo-green);
    font-weight: 800;
    cursor: pointer;
}

.auth-switch-link:hover {
    text-decoration: underline;
}

/* History Modal */
.dialogue-history-card {
    max-width: 600px;
    max-height: 80vh;
}

.history-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.history-modal-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
}

.history-modal-desc {
    font-size: 13px;
    color: var(--text-muted);
}

.history-list-stream {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    max-height: 400px;
}

.history-item-row {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.history-item-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.history-item-cat {
    font-size: 10px;
    font-weight: 800;
    color: var(--duo-violet);
    text-transform: uppercase;
}

.history-item-title {
    font-weight: 800;
    font-size: 14px;
    color: var(--text-primary);
}

.history-item-meta {
    font-size: 11px;
    color: var(--text-muted);
}

.btn-load-past {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 800;
}

/* Goal Customizer Modal */
.goal-options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.goal-option-item {
    background-color: var(--bg-inset);
    border: 2px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.goal-option-item:hover {
    border-color: var(--duo-green);
}

.goal-option-item.selected {
    background-color: var(--duo-green-subtle);
    border-color: var(--duo-green);
}

.goal-opt-title {
    font-weight: 800;
    font-size: 14px;
    color: var(--text-primary);
}

.goal-opt-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.goal-opt-xp {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 16px;
    color: var(--duo-green);
}

/* Celebration Modal (Goal Reached) */
.celebrate-card {
    text-align: center;
    align-items: center;
    padding: 36px 28px;
    gap: 14px;
}

.celebrate-mascot-box {
    width: 140px;
    height: 140px;
    animation: celebrateBounce 1.2s infinite ease-in-out;
}

@keyframes celebrateBounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

.celebrate-mascot-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.celebrate-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 900;
    color: var(--duo-green);
}

.celebrate-text {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 320px;
}

.btn-celebrate-claim {
    padding: 12px 32px;
    border-radius: var(--radius-md);
    background-color: var(--duo-green);
    border: 2px solid var(--duo-green-border);
    border-bottom: 5px solid var(--duo-green-border);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    cursor: pointer;
    margin-top: 8px;
}

/* Floating XP Toast / Flyout */
.floating-xp-badge {
    position: fixed;
    z-index: 2000;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    background-color: var(--duo-amber);
    color: var(--text-dark);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 900;
    box-shadow: 0 8px 24px var(--duo-amber-glow);
    animation: floatXpUp 1.4s forwards cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

@keyframes floatXpUp {
    0% {
        opacity: 0;
        transform: translateY(10px) scale(0.7);
    }

    20% {
        opacity: 1;
        transform: translateY(0) scale(1.15);
    }

    80% {
        opacity: 1;
        transform: translateY(-30px) scale(1);
    }

    100% {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
}

/* Notification Toast */
.app-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    background-color: var(--bg-card-elevated);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    animation: toastSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes toastSlide {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
.footer {
    padding: 16px 28px;
    border-top: 1px solid var(--border-subtle);
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    background-color: var(--bg-sidebar);
}

.footer a {
    color: var(--duo-green);
    font-weight: 700;
}

/* ==========================================================================
   VIEW 3: MISTAKES REVIEW NOTEBOOK STYLING
   ========================================================================== */
.tag-mistakes {
    background-color: rgba(255, 150, 0, 0.15);
    color: var(--duo-amber);
    border: 1px solid rgba(255, 150, 0, 0.35);
}

.nav-item-badge.badge-amber {
    background-color: var(--duo-amber);
    color: var(--text-dark);
}

.mistakes-workspace {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 860px;
    margin: 0 auto;
    width: 100%;
    animation: fadeInFlow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mistakes-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Guest Banner (Logged Out Callout) */
.mistakes-guest-card {
    display: flex;
    align-items: center;
    gap: 26px;
    padding: 28px;
    background: linear-gradient(135deg, rgba(255, 150, 0, 0.12) 0%, rgba(15, 23, 42, 0.85) 100%);
    border: 2px solid rgba(255, 150, 0, 0.35);
    border-bottom: 5px solid rgba(255, 150, 0, 0.55);
    border-radius: var(--radius-lg);
}

.guest-banner-mascot {
    flex-shrink: 0;
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.guest-banner-mascot img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.4));
}

.guest-banner-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.guest-banner-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.guest-banner-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.btn-mistakes-login {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 900;
    background-color: var(--duo-amber);
    border: 2px solid var(--duo-amber-border);
    border-bottom: 4px solid var(--duo-amber-border);
    color: var(--text-dark);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 14px var(--duo-amber-glow);
    margin-top: 4px;
}

.btn-mistakes-login:hover {
    background-color: var(--duo-amber-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--duo-amber-glow);
}

/* Authenticated Notebook Container */
.mistakes-auth-container {
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
}

/* Stats Summary Row */
.mistakes-stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.mistake-stat-box {
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: transform var(--transition-fast);
}

.mistake-stat-box:hover {
    transform: translateY(-2px);
    border-color: var(--border-main);
}

.stat-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.box-total .stat-icon-wrap {
    background-color: var(--duo-blue-subtle);
    border: 2px solid var(--duo-blue-border);
    color: var(--duo-blue);
}

.box-needs .stat-icon-wrap {
    background-color: var(--duo-amber-subtle);
    border: 2px solid var(--duo-amber-border);
    color: var(--duo-amber);
}

.box-mastered .stat-icon-wrap {
    background-color: var(--duo-green-subtle);
    border: 2px solid var(--duo-green-border);
    color: var(--duo-green);
}

.stat-text-wrap {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 900;
    color: var(--text-primary);
}

.stat-lbl {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Filter Bar */
.mistakes-controls-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding: 4px 0;
}

.mistakes-filter-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    color: var(--text-primary);
    transform: translateY(-1px);
}

.filter-tab.active {
    background-color: var(--duo-green-subtle);
    border-color: var(--duo-green);
    border-bottom: 3px solid var(--duo-green-border);
    color: var(--duo-green);
}

.btn-refresh-mistakes {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 3px solid var(--border-card-bottom);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-refresh-mistakes:hover {
    color: var(--duo-green);
    border-color: var(--duo-green);
    transform: rotate(90deg);
}

/* Mistakes List Wrap */
.mistakes-list-wrap {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Individual Mistake Card */
.mistake-item-card {
    background-color: var(--bg-card);
    border: 2px solid var(--border-card);
    border-bottom: 4px solid var(--border-card-bottom);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: all var(--transition-fast);
}

.mistake-item-card:hover {
    border-color: var(--border-main);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.mistake-item-card.is-mastered {
    border-color: rgba(0, 214, 143, 0.35);
    border-bottom-color: rgba(0, 214, 143, 0.6);
    background-color: rgba(0, 214, 143, 0.04);
}

.card-top-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.meta-left-pills {
    display: flex;
    align-items: center;
    gap: 8px;
}

.source-pill {
    padding: 3px 8px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--bg-inset);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
}

.time-lbl {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
}

.badge-status-pending {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    background-color: var(--duo-amber-subtle);
    color: var(--duo-amber);
    border: 1px solid var(--duo-amber-border);
}

.badge-status-mastered {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 800;
    background-color: var(--duo-green-subtle);
    color: var(--duo-green);
    border: 1px solid var(--duo-green-border);
}

/* Sentences Comparison in Mistake Card */
.card-sentences-wrap {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sentence-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
}

.sentence-row.row-original {
    background-color: rgba(255, 75, 75, 0.08);
    border-left: 3px solid var(--duo-red);
}

.sentence-row.row-corrected {
    background-color: rgba(0, 214, 143, 0.08);
    border-left: 3px solid var(--duo-green);
}

.sentence-tag {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    flex-shrink: 0;
    width: 70px;
}

.row-original .sentence-tag {
    color: var(--duo-red);
}

.row-corrected .sentence-tag {
    color: var(--duo-green);
}

.sentence-quote {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
}

.diff-highlight-bad {
    background-color: rgba(255, 75, 75, 0.25);
    color: #ff9999;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    text-decoration: line-through;
    font-weight: 700;
}

.diff-highlight-good {
    background-color: rgba(0, 214, 143, 0.25);
    color: #55f3b7;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-weight: 800;
}

/* Grammar Rule Box in Mistake Card */
.rule-box {
    background-color: var(--bg-inset);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.45;
}

.rule-box i {
    color: var(--duo-violet);
    margin-top: 2px;
}

.rule-box strong {
    color: var(--text-primary);
}

/* Mistake Card Footer Actions */
.card-action-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-top: 6px;
    border-top: 1px solid var(--border-subtle);
}

.footer-left-btns {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-listen-mistake {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 800;
    background-color: var(--duo-violet-subtle);
    border: 1px solid var(--duo-violet-border);
    border-bottom: 2px solid var(--duo-violet-border);
    color: var(--duo-violet);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-listen-mistake:hover {
    background-color: var(--duo-violet);
    color: #fff;
    transform: translateY(-1px);
}

.btn-toggle-master {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 800;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-card);
    border-bottom: 2px solid var(--border-card-bottom);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-toggle-master:hover {
    background-color: var(--duo-green-subtle);
    border-color: var(--duo-green-border);
    color: var(--duo-green);
    transform: translateY(-1px);
}

.btn-toggle-master.is-mastered {
    background-color: var(--duo-green);
    border-color: var(--duo-green-border);
    color: var(--text-dark);
}

.btn-delete-mistake {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: all var(--transition-fast);
}

.btn-delete-mistake:hover {
    color: var(--duo-red);
    background-color: var(--duo-red-subtle);
}

/* Empty Mistakes State */
.mistakes-empty-box {
    margin: 20px 0;
    padding: 36px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* ==========================================================================
   MOBILE BOTTOM NAVIGATION BAR (Duolingo App Experience)
   ========================================================================== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--bg-sidebar);
    border-top: 2px solid var(--border-subtle);
    z-index: 850;
    align-items: center;
    justify-content: space-around;
    padding: 0 8px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    flex: 1;
    height: 100%;
    padding: 6px 0;
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    user-select: none;
}

.mobile-nav-icon {
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 22px;
    transition: transform var(--transition-bounce);
}

.mobile-nav-item:hover {
    color: var(--text-primary);
}

.mobile-nav-item.active {
    color: var(--duo-green);
}

.mobile-nav-item.active .mobile-nav-icon {
    transform: scale(1.15);
    filter: drop-shadow(0 2px 8px var(--duo-green-glow));
}

/* ==========================================================================
   RESPONSIVE DESIGN (Tablets & Mobile)
   ========================================================================== */
@media (min-width: 1600px) {
    :root {
        --sidebar-width: 275px;
        --stats-panel-width: 350px;
    }
}

@media (max-width: 1400px) and (min-width: 1201px) {
    :root {
        --sidebar-width: 250px;
        --stats-panel-width: 300px;
    }
}

@media (max-width: 1200px) {
    .duo-stats-panel {
        position: fixed !important;
        top: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: min(340px, 88vw) !important;
        max-width: 88vw !important;
        min-width: 0 !important;
        height: 100vh !important;
        height: 100dvh !important;
        z-index: 1000 !important;
        background-color: var(--bg-sidebar) !important;
        box-shadow: -8px 0 30px rgba(0, 0, 0, 0.7) !important;
        transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    .duo-stats-panel.collapsed {
        transform: translateX(100%) !important;
        display: flex !important;
        width: min(340px, 88vw) !important;
        max-width: 88vw !important;
        min-width: 0 !important;
        opacity: 1 !important;
        pointer-events: none !important;
    }

    .duo-stats-panel:not(.collapsed) {
        transform: translateX(0) !important;
        display: flex !important;
        width: min(340px, 88vw) !important;
        max-width: 88vw !important;
        min-width: 0 !important;
        pointer-events: auto !important;
    }
}

@media (max-width: 1024px) {
    .app-sidebar {
        position: fixed !important;
        top: 0 !important;
        left: -100% !important;
        bottom: 0 !important;
        width: min(290px, 86vw) !important;
        max-width: 86vw !important;
        min-width: 0 !important;
        height: 100vh !important;
        height: 100dvh !important;
        z-index: 1000 !important;
        background-color: var(--bg-sidebar) !important;
        box-shadow: 8px 0 30px rgba(0, 0, 0, 0.7) !important;
        transition: left 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    .app-sidebar.open {
        left: 0 !important;
    }

    .sidebar-backdrop {
        position: fixed;
        inset: 0;
        background-color: rgba(11, 17, 32, 0.75);
        backdrop-filter: blur(4px);
        z-index: 950;
        display: none;
    }

    .sidebar-backdrop.active {
        display: block;
    }

    .mobile-menu-btn {
        display: flex !important;
    }

    .split-layout {
        grid-template-columns: 1fr;
    }

    .features-preview-grid {
        grid-template-columns: 1fr;
    }

    .comparison-row {
        flex-direction: column;
    }

    .desktop-arrow {
        display: none;
    }

    .mobile-arrow {
        display: inline-block;
    }

    .clips-arena {
        grid-template-columns: 1fr;
    }

    .dialogue-stage-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .duo-stats-panel {
        width: min(340px, 92vw) !important;
        max-width: 92vw !important;
        min-width: 0 !important;
        padding: 18px 14px !important;
    }

    .duo-stats-panel.collapsed,
    .duo-stats-panel:not(.collapsed) {
        width: min(340px, 92vw) !important;
        max-width: 92vw !important;
        min-width: 0 !important;
    }

    .mobile-bottom-nav {
        display: flex !important;
    }

    .views-viewport {
        padding: 16px 14px 84px !important;
    }

    .top-nav-bar {
        padding: 0 12px;
        height: 58px;
    }

    .top-nav-left {
        gap: 8px;
        min-width: 0;
        flex: 1;
    }

    .view-header-title {
        min-width: 0;
    }

    .view-title {
        font-size: 16px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .view-breadcrumb {
        display: none !important;
    }

    .stat-pill.pill-goal {
        display: none !important;
    }

    .top-streak-toggle-btn span {
        display: none !important;
    }

    .top-streak-toggle-btn {
        padding: 6px 10px;
        font-size: 12px;
    }

    .stat-pill {
        padding: 5px 8px;
        font-size: 12px;
        gap: 4px;
    }

    /* Dialogue Responsive */
    .dialogue-start-card {
        padding: 24px 16px;
        min-height: auto;
    }

    .dialogue-start-logo-box {
        width: 130px;
        height: 130px;
    }

    .dialogue-start-logo {
        width: 110px;
        height: 110px;
    }

    .dialogue-start-actions-centered {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        gap: 10px;
    }

    .btn-start-dialogue-primary,
    .btn-start-dialogue-secondary {
        width: 100%;
        justify-content: center;
    }

    .dialogue-top-bar {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
        padding: 12px;
    }

    .meta-badges-left {
        flex-wrap: wrap;
        gap: 6px;
    }

    .meta-actions-right {
        flex-wrap: wrap;
        gap: 6px;
        justify-content: flex-start;
    }

    .btn-scenario-action {
        padding: 6px 10px;
        font-size: 11px;
    }

    .dialogue-character-panel {
        position: static !important;
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 16px;
        gap: 12px;
    }

    .talking-logo-container {
        width: 110px;
        height: 110px;
        margin: 0 auto;
    }

    .dialogue-character-info {
        width: 100%;
        min-width: 0;
    }

    .dialogue-roles-row {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .dialogue-role-pill {
        width: 100%;
        justify-content: center;
    }

    .dialogue-stream-card {
        padding: 14px;
    }

    .stream-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .stream-header-actions {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 6px;
    }

    .btn-stream-speech-toggle {
        padding: 6px 12px;
        font-size: 11px;
    }

    .dialogue-chat-stream {
        max-height: 380px;
        min-height: 220px;
        padding: 10px;
    }

    .message-bubble {
        max-width: 92% !important;
        font-size: 14px;
        padding: 10px 14px;
    }

    .dialogue-dock-section {
        padding: 12px;
    }

    .dock-controls-row {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .dialogue-mic-btn {
        width: 56px;
        height: 56px;
        font-size: 20px;
        margin: 0 auto;
    }

    .dock-input-preview-wrap {
        width: 100%;
    }

    /* Clips Dictation Responsive */
    .clips-workspace {
        gap: 14px;
    }

    .clips-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 10px 14px;
    }

    .clips-filter-scroll {
        width: 100%;
    }

    .clips-stream-badge {
        align-self: flex-start;
        font-size: 11px;
        padding: 4px 10px;
    }

    .clip-player-card,
    .clip-input-card {
        padding: 14px;
        border-radius: 16px;
        width: 100%;
    }

    .clip-meta-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .clip-title-text {
        font-size: 16px;
    }

    .clip-controls-dock {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        width: 100%;
    }

    .btn-clip-ctrl.btn-play-primary {
        grid-column: span 2;
        width: 100%;
        justify-content: center;
    }

    .btn-clip-ctrl {
        justify-content: center;
        padding: 9px 10px;
        font-size: 12px;
    }

    .clip-overlay-banner {
        font-size: 10px;
        padding: 3px 8px;
        top: 8px;
        left: 8px;
    }

    .clip-cc-notice {
        font-size: 9px;
        padding: 3px 6px;
        bottom: 8px;
        right: 8px;
    }

    .clip-textarea-wrap textarea {
        min-height: 80px;
        font-size: 14px;
        padding: 10px;
    }

    .clip-form-actions {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .btn-clip-submit,
    .btn-clip-skip {
        width: 100%;
        justify-content: center;
    }

    .feedback-score-row {
        flex-wrap: wrap;
        gap: 8px;
    }

    .clip-next-action-bar {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .btn-next-clip-primary,
    .btn-retry-clip {
        width: 100%;
        justify-content: center;
    }

    /* Mistakes Review Responsive */
    .mistakes-guest-card {
        flex-direction: column;
        text-align: center;
        padding: 18px 14px;
        gap: 14px;
    }

    .guest-banner-mascot {
        width: 72px;
        height: 72px;
        margin: 0 auto;
    }

    .guest-banner-title {
        font-size: 17px;
    }

    .guest-banner-text {
        font-size: 13px;
    }

    .btn-mistakes-login {
        align-self: center;
        width: 100%;
        justify-content: center;
    }

    .mistakes-stats-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .mistakes-controls-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .mistakes-filter-tabs {
        overflow-x: auto;
        width: 100%;
    }

    .mistake-card {
        padding: 12px;
    }

    /* Voice Studio Responsive */
    .studio-card-container {
        padding: 0;
        border-radius: 16px;
    }

    .duo-card {
        padding: 16px;
        border-radius: 16px;
    }

    .card-header-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        width: 100%;
    }

    .header-actions {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
    }

    .header-actions #btn-copy {
        margin-left: auto;
    }

    .meta-pill {
        font-size: 11px;
        padding: 4px 8px;
        white-space: nowrap;
    }

    .pill-btn {
        padding: 6px 10px;
        font-size: 11px;
        white-space: nowrap;
    }

    .output-bottom-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        width: 100%;
    }

    .btn-check-teacher {
        width: 100%;
        justify-content: center;
    }

    .after-actions-row {
        flex-wrap: wrap;
        width: 100%;
        gap: 8px;
    }

    .after-actions-row button {
        flex: 1 1 auto;
        justify-content: center;
        white-space: nowrap;
    }

    .settings-dropdown-menu {
        width: min(300px, calc(100vw - 32px));
        right: 0;
    }

    .panel-title {
        font-size: 20px;
    }

    .record-btn {
        width: 84px;
        height: 84px;
        font-size: 30px;
    }

    .comparison-row {
        flex-direction: column;
        gap: 10px;
    }

    .perfect-banner {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .perfect-actions {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .perfect-actions button {
        width: 100%;
        justify-content: center;
    }

    .result-action-topbar {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }

    .btn-record-again {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .views-viewport {
        padding: 12px 10px 84px !important;
    }

    .duo-card {
        padding: 14px 12px;
    }

    .header-actions {
        gap: 6px;
    }

    .header-actions #btn-copy {
        margin-left: 0;
    }

    .header-actions .pill-btn {
        flex: 1 1 auto;
        justify-content: center;
    }

    .top-nav-bar {
        padding: 0 10px;
    }

    .view-title {
        font-size: 15px;
    }

    .stat-pill {
        padding: 4px 7px;
        font-size: 11px;
    }

    .top-streak-toggle-btn {
        padding: 5px 8px;
    }

    .record-btn {
        width: 76px;
        height: 76px;
        font-size: 26px;
    }

    .app-sidebar {
        width: 88vw !important;
        max-width: 320px !important;
        min-width: 0 !important;
        padding: 20px 14px !important;
    }

    .duo-stats-panel {
        width: 100% !important;
        max-width: 100vw !important;
        min-width: 0 !important;
        padding: 16px 12px 24px !important;
        box-shadow: none !important;
    }

    .duo-stats-panel.collapsed,
    .duo-stats-panel:not(.collapsed) {
        width: 100% !important;
        max-width: 100vw !important;
        min-width: 0 !important;
    }

    .streak-week-trail {
        gap: 2px !important;
    }

    .day-circle {
        width: 25px !important;
        height: 25px !important;
        font-size: 10px !important;
    }

    .day-label {
        font-size: 9px !important;
    }

    .duo-stat-card {
        padding: 14px 12px !important;
    }

    .mascot-companion-card {
        padding: 12px 10px !important;
    }

    .mascot-figure-box {
        width: 48px !important;
        height: 48px !important;
    }
}

/* ==========================================================================
   YOUTUBE CLIP DICTATION & LISTENING STYLES
   ========================================================================== */

.clips-workspace {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.panel-tag.tag-clips {
    background: var(--duo-green-subtle);
    color: var(--duo-green);
    border: 1px solid rgba(0, 214, 143, 0.3);
}

.clips-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    padding: 12px 18px;
}

.clips-filter-scroll {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
}

.clip-pill {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-card);
    color: var(--text-sub);
    border-radius: 20px;
    padding: 7px 16px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.clip-pill:hover {
    border-color: var(--duo-green);
    color: var(--text-main);
}

.clip-pill.active {
    background: var(--duo-green);
    color: #07121e;
    border-color: var(--duo-green-border);
    box-shadow: 0 2px 10px var(--duo-green-glow);
}

.clips-stream-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    color: var(--duo-green);
    background: rgba(0, 214, 143, 0.12);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(0, 214, 143, 0.25);
    white-space: nowrap;
}

.clips-shelf-container {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 18px;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.shelf-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.shelf-title-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--duo-green);
    font-size: 14px;
}

.shelf-title-text {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 800;
    color: var(--text-main);
}

.shelf-sub-text {
    font-size: 12px;
    color: var(--text-sub);
}

.shelf-count-pill {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    color: var(--duo-green);
    background: rgba(0, 214, 143, 0.12);
    border: 1px solid rgba(0, 214, 143, 0.25);
    border-radius: 12px;
    padding: 3px 10px;
}

.clips-shelf-scroll {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding: 4px 2px 10px 2px;
    scrollbar-width: thin;
    scroll-snap-type: x mandatory;
}

.clip-shelf-card {
    flex: 0 0 200px;
    scroll-snap-align: start;
    background: var(--bg-card-elevated);
    border: 1.5px solid var(--border-card);
    border-radius: 14px;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    user-select: none;
}

.clip-shelf-card:hover {
    transform: translateY(-3px);
    border-color: var(--duo-green);
    box-shadow: 0 8px 24px rgba(0, 214, 143, 0.22);
}

.clip-shelf-card.active {
    border-color: var(--duo-green);
    box-shadow: 0 0 0 2px var(--duo-green), 0 8px 24px rgba(0, 214, 143, 0.28);
    background: rgba(0, 214, 143, 0.08);
}

.shelf-card-thumb-wrap {
    position: relative;
    width: 100%;
    height: 105px;
    background: #000;
    overflow: hidden;
}

.shelf-card-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.clip-shelf-card:hover .shelf-card-thumb-img {
    transform: scale(1.05);
}

.shelf-card-duration {
    position: absolute;
    bottom: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
}

.shelf-card-play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.clip-shelf-card:hover .shelf-card-play-overlay,
.clip-shelf-card.active .shelf-card-play-overlay {
    opacity: 1;
}

.shelf-play-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--duo-green);
    color: #07121e;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    padding-left: 2px;
    box-shadow: 0 2px 10px var(--duo-green-glow);
}

.shelf-card-body {
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.shelf-card-speaker {
    font-size: 11px;
    font-weight: 700;
    color: var(--duo-green);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shelf-card-title {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shelf-card-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 4px;
}

.shelf-card-category {
    font-size: 11px;
    color: var(--text-sub);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shelf-card-diff {
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 6px;
    text-transform: uppercase;
}

.shelf-card-diff.diff-beginner {
    background: rgba(0, 214, 143, 0.15);
    color: #00d68f;
}

.shelf-card-diff.diff-easy {
    background: rgba(30, 144, 255, 0.15);
    color: #1e90ff;
}

.shelf-card-diff.diff-intermediate {
    background: rgba(255, 170, 0, 0.15);
    color: #ffaa00;
}

.shelf-card-diff.diff-advanced {
    background: rgba(255, 75, 75, 0.15);
    color: #ff4b4b;
}

.clips-arena {

    display: grid;
    grid-template-columns: minmax(360px, 1.15fr) minmax(320px, 1fr);
    gap: 24px;
    align-items: start;
}

.clip-player-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 20px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.clip-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.clip-title-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.clip-title-text {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 800;
    color: var(--text-main);
    margin: 0;
    width: 100%;
}

.clip-category-badge {
    background: rgba(0, 214, 143, 0.15);
    color: var(--duo-green);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(0, 214, 143, 0.25);
}

.clip-difficulty-badge {
    font-size: 11px;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.clip-difficulty-badge.badge-beginner {
    background: rgba(0, 214, 143, 0.15);
    color: var(--duo-green);
    border: 1px solid rgba(0, 214, 143, 0.25);
}

.clip-difficulty-badge.badge-easy {
    background: rgba(28, 176, 246, 0.15);
    color: var(--duo-blue);
    border: 1px solid rgba(28, 176, 246, 0.25);
}

.clip-difficulty-badge.badge-intermediate {
    background: rgba(255, 150, 0, 0.15);
    color: var(--duo-amber);
    border: 1px solid rgba(255, 150, 0, 0.25);
}

.clip-difficulty-badge.badge-advanced {
    background: rgba(255, 75, 75, 0.15);
    color: var(--duo-red);
    border: 1px solid rgba(255, 75, 75, 0.25);
}

.clip-speaker-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-sub);
    background: var(--bg-card-elevated);
    padding: 6px 12px;
    border-radius: 10px;
    border: 1px solid var(--border-card);
}

.clip-video-frame {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    /* 16:9 Aspect Ratio */
    border-radius: 16px;
    overflow: hidden;
    background: #050a14;
    border: 1px solid var(--border-card);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.clip-video-player,
.youtube-player-host {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
    border: none;
    outline: none;
}

.clip-center-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(100% - 44px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4;
    cursor: pointer;
    transition: opacity 0.25s ease;
}

.clip-center-play-overlay.playing {
    opacity: 0;
    pointer-events: none;
}

.center-play-disc {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: rgba(0, 214, 143, 0.92);
    color: #050a14;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 8px 30px rgba(0, 214, 143, 0.5), 0 0 0 8px rgba(0, 214, 143, 0.25);
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.2s ease;
    padding-left: 4px;
}

.center-play-disc:hover {
    transform: scale(1.12);
    background: #00ffaa;
    box-shadow: 0 10px 36px rgba(0, 255, 170, 0.6), 0 0 0 12px rgba(0, 255, 170, 0.3);
}

.center-play-disc:active {
    transform: scale(0.95);
}

video::-internal-media-controls-download-button {
    display: none !important;
}

.clip-overlay-banner {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(11, 17, 32, 0.88);
    backdrop-filter: blur(8px);
    padding: 6px 12px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--duo-green);
    border: 1px solid rgba(0, 214, 143, 0.3);
    pointer-events: none;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.clip-cc-notice {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(11, 17, 32, 0.88);
    backdrop-filter: blur(8px);
    padding: 5px 12px;
    border-radius: 16px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-sub);
    border: 1px solid rgba(255, 255, 255, 0.1);
    pointer-events: none;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.clip-controls-dock {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-clip-ctrl {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-card);
    color: var(--text-main);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 13px;
    padding: 10px 16px;
    border-radius: 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-clip-ctrl:hover {
    border-color: var(--duo-green);
    background: var(--bg-card-hover);
}

.btn-clip-ctrl.btn-play-primary {
    background: var(--duo-green);
    color: #07121e;
    border: 1px solid var(--duo-green-border);
    box-shadow: 0 4px 0 var(--duo-green-border);
    font-weight: 800;
    flex-grow: 1;
    justify-content: center;
}

.btn-clip-ctrl.btn-play-primary:hover {
    background: var(--duo-green-hover);
    transform: translateY(-1px);
    box-shadow: 0 5px 0 var(--duo-green-border);
}

.btn-clip-ctrl.btn-play-primary:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 var(--duo-green-border);
}

.btn-clip-ctrl.active {
    background: rgba(0, 214, 143, 0.18);
    border-color: var(--duo-green);
    color: var(--duo-green);
}

.clip-hint-box {
    background: rgba(255, 150, 0, 0.08);
    border: 1px solid rgba(255, 150, 0, 0.25);
    border-radius: 14px;
    padding: 12px 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-main);
    font-size: 13px;
    line-height: 1.5;
}

.clip-hint-box .hint-icon {
    color: var(--duo-amber);
    font-size: 16px;
    margin-top: 2px;
}

.clip-input-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 20px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.clip-prompt-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.prompt-icon-wrap {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--duo-green-subtle);
    color: var(--duo-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.prompt-text-wrap h4 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 800;
    color: var(--text-main);
}

.prompt-text-wrap p {
    margin: 2px 0 0 0;
    font-size: 13px;
    color: var(--text-sub);
}

.clip-textarea-wrap {
    background: var(--bg-input);
    border: 2px solid var(--border-card);
    border-radius: 16px;
    padding: 14px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
}

.clip-textarea-wrap:focus-within {
    border-color: var(--duo-green);
    box-shadow: 0 0 0 4px var(--duo-green-subtle);
}

.clip-dictation-textarea {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    resize: none;
    min-height: 100px;
}

.clip-dictation-textarea::placeholder {
    color: var(--text-muted);
}

.textarea-footer-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 12px;
    color: var(--text-muted);
}

.clip-shortcut-tip kbd {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-card);
    padding: 2px 5px;
    border-radius: 4px;
    font-family: var(--font-mono);
    color: var(--text-sub);
}

.clip-actions-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
}

.btn-check-dictation {
    background: var(--duo-green);
    color: #07121e;
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 800;
    padding: 12px 26px;
    border-radius: 14px;
    border: none;
    box-shadow: 0 4px 0 var(--duo-green-border);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    flex-grow: 1;
    justify-content: center;
}

.btn-check-dictation:hover {
    background: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--duo-green-border);
}

.btn-check-dictation:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 var(--duo-green-border);
}

.btn-skip-clip {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-card);
    color: var(--text-sub);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-skip-clip:hover {
    border-color: var(--border-card);
    color: var(--text-main);
    background: var(--bg-card-hover);
}

/* Feedback & Result Styling */
.clip-feedback-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
    animation: fadeIn 0.3s ease;
}

.feedback-score-row {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card-elevated);
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--border-card);
}

.accuracy-score-pill {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 68px;
    height: 68px;
    border-radius: 50%;
    background: rgba(0, 214, 143, 0.15);
    border: 3px solid var(--duo-green);
    color: var(--duo-green);
    flex-shrink: 0;
}

.accuracy-score-pill .score-percent {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 18px;
    line-height: 1;
}

.accuracy-score-pill .score-label {
    font-size: 9px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 2px;
}

.score-xp-award {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 150, 0, 0.15);
    border: 1px solid rgba(255, 150, 0, 0.35);
    color: var(--duo-amber);
    padding: 6px 14px;
    border-radius: 20px;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 14px;
    flex-shrink: 0;
}

.score-verdict-wrap {
    flex-grow: 1;
}

.score-verdict-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 800;
    color: var(--text-main);
}

.score-verdict-sub {
    font-size: 12px;
    color: var(--text-sub);
}

.clip-diff-box {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.diff-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.diff-title {
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    color: var(--text-sub);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-diff-listen {
    background: transparent;
    border: 1px solid var(--border-card);
    color: var(--duo-green);
    border-radius: 8px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-diff-listen:hover {
    background: var(--duo-green-subtle);
    border-color: var(--duo-green);
}

.official-subtitle-display {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    color: var(--duo-green);
    background: rgba(0, 214, 143, 0.08);
    border-left: 3px solid var(--duo-green);
    padding: 10px 14px;
    border-radius: 8px;
    line-height: 1.5;
}

.diff-chips-stream {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px;
    background: var(--bg-input);
    border-radius: 12px;
    border: 1px solid var(--border-card);
    line-height: 1.8;
}

.diff-token {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
}

.diff-token.token-correct {
    background: rgba(0, 214, 143, 0.15);
    color: var(--duo-green);
    border: 1px solid rgba(0, 214, 143, 0.35);
}

.diff-token.token-incorrect {
    background: rgba(255, 75, 75, 0.18);
    color: var(--duo-red);
    border: 1px solid rgba(255, 75, 75, 0.4);
}

.diff-token.token-incorrect .token-expected-badge {
    background: rgba(0, 0, 0, 0.35);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 12px;
    color: #fff;
    font-weight: 700;
}

.diff-token.token-missing {
    background: rgba(255, 150, 0, 0.15);
    color: var(--duo-amber);
    border: 1px dashed rgba(255, 150, 0, 0.45);
}

.diff-token.token-extra {
    background: rgba(148, 163, 184, 0.15);
    color: var(--text-muted);
    text-decoration: line-through;
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.clip-mistakes-alert {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255, 75, 75, 0.12);
    border: 1px solid rgba(255, 75, 75, 0.3);
    border-radius: 14px;
    padding: 14px 16px;
}

.mistakes-alert-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 75, 75, 0.2);
    color: var(--duo-red);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.mistakes-alert-info {
    flex-grow: 1;
}

.mistakes-alert-info strong {
    display: block;
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--duo-red);
}

.mistakes-alert-info p {
    margin: 2px 0 0 0;
    font-size: 12px;
    color: var(--text-sub);
}

.btn-view-mistakes-link {
    background: transparent;
    color: var(--duo-red);
    border: 1px solid rgba(255, 75, 75, 0.35);
    padding: 6px 14px;
    border-radius: 10px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    transition: all 0.2s;
}

.btn-view-mistakes-link:hover {
    background: rgba(255, 75, 75, 0.15);
}

.clip-insight-box {
    background: rgba(0, 214, 143, 0.08);
    border: 1px solid rgba(0, 214, 143, 0.25);
    border-radius: 14px;
    padding: 14px 18px;
}

.insight-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 800;
    color: var(--duo-green);
    margin-bottom: 6px;
}

.insight-body {
    margin: 0;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-main);
}

.clip-next-action-bar {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-next-clip-primary {
    background: var(--duo-green);
    color: #07121e;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 800;
    padding: 14px 28px;
    border-radius: 14px;
    border: none;
    box-shadow: 0 4px 0 var(--duo-green-border);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    flex-grow: 1;
}

.btn-next-clip-primary:hover {
    background: var(--duo-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--duo-green-border);
}

.btn-next-clip-primary:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 var(--duo-green-border);
}

.btn-retry-clip {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-card);
    color: var(--text-sub);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    padding: 14px 20px;
    border-radius: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-retry-clip:hover {
    color: var(--text-main);
    background: var(--bg-card-hover);
    border-color: var(--duo-green);
}

@media (max-width: 960px) {
    .clips-arena {
        grid-template-columns: 1fr;
    }
}