/* ==========================================================================
   Latihan Bahasa - Premium Stylesheet
   ========================================================================== */

:root {
    /* HSL Palettes - Light Mode (Clean, Premium, vibrant) */
    --green: hsl(142, 69%, 52%);          /* Vibrant Emerald */
    --green-dark: #0f8543;
    --green-glow: rgba(16, 185, 129, 0.15);
    
    --blue: hsl(226, 100%, 65%);          /* Royal Blue / Indigo hint */
    --blue-glow: rgba(79, 140, 255, 0.15);
    
    --yellow: hsl(45, 100%, 60%);         /* Premium Amber */
    --orange: hsl(28, 100%, 58%);         /* Vibrant Orange */
    --orange-glow: rgba(255, 159, 67, 0.15);
    
    --purple: hsl(262, 83%, 64%);         /* Violet */
    --purple-glow: rgba(139, 92, 246, 0.15);
    
    --dark: #0f172a;                      /* Slate 900 */
    --muted: #64748b;                     /* Slate 500 */
    --soft: #f8fafc;                      /* Slate 50 */
    --white: #ffffff;
    --border: rgba(226, 232, 240, 0.8);   /* Translucent Slate 200 */
    
    --shadow: 0 20px 50px -12px rgba(15, 23, 42, 0.08), 0 0 1px rgba(15, 23, 42, 0.04);
    --shadow-soft: 0 10px 30px -10px rgba(15, 23, 42, 0.06);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.12);

    /* Theme specific gradients & backgrounds */
    --bg-page: radial-gradient(circle at 0% 0%, rgba(99, 102, 241, 0.06), transparent 35%),
        radial-gradient(circle at 100% 0%, rgba(16, 185, 129, 0.05), transparent 35%),
        linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    --navbar-bg: rgba(255, 255, 255, 0.75);
    --card-bg: rgba(255, 255, 255, 0.7);
    --badge-bg: rgba(255, 255, 255, 0.85);
    --item-bg: #f1f5f9;
    --dark-phone-bg: #0f172a;
    
    --glass-border: 1px solid rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.04);
}

body.dark-theme {
    --dark: #f8fafc;                      /* Slate 50 */
    --muted: #94a3b8;                     /* Slate 400 */
    --soft: #090e1a;                      /* Ultra Dark Blue */
    --white: #0f172a;                     /* Slate 900 */
    --border: rgba(30, 41, 59, 0.7);      /* Translucent Slate 800 */
    
    --shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.5), 0 0 1px rgba(0, 0, 0, 0.3);
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.2);

    --bg-page: radial-gradient(circle at 0% 0%, rgba(99, 102, 241, 0.12), transparent 40%),
        radial-gradient(circle at 100% 0%, rgba(16, 185, 129, 0.08), transparent 40%),
        linear-gradient(180deg, #090d16 0%, #05070c 100%);
    --navbar-bg: rgba(15, 23, 42, 0.75);
    --card-bg: rgba(15, 23, 42, 0.65);
    --badge-bg: rgba(30, 41, 59, 0.6);
    --item-bg: #1e293b;                   /* Slate 800 */
    --dark-phone-bg: #050914;
    
    --glass-border: 1px solid rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Custom Scrollbar override for webkit browsers */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 5px;
    border: 2px solid transparent;
    background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--blue);
    border: 2px solid transparent;
    background-clip: content-box;
}

/* Floating Glow Orbs Override for Latihan Bahasa */
.orb {
    position: fixed;
    width: 450px;
    height: 450px;
    border-radius: 999px;
    pointer-events: none;
    filter: blur(80px);
    z-index: 0;
    opacity: 0.65;
    mix-blend-mode: plus-lighter;
}

body.dark-theme .orb {
    opacity: 0.45;
}

.orb.one {
    top: -150px;
    right: -100px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.45) 0%, rgba(139, 92, 246, 0.1) 70%, transparent 100%);
    animation: floatOrbComplexOne 24s ease-in-out infinite;
}

.orb.two {
    bottom: -150px;
    left: -150px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.35) 0%, rgba(59, 130, 246, 0.1) 70%, transparent 100%);
    animation: floatOrbComplexTwo 28s ease-in-out infinite;
}

@keyframes floatOrbComplexOne {
    0% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    33% {
        transform: translate(50px, 80px) scale(1.1) rotate(120deg);
    }
    66% {
        transform: translate(-30px, 40px) scale(0.9) rotate(240deg);
    }
    100% {
        transform: translate(0, 0) scale(1) rotate(360deg);
    }
}

@keyframes floatOrbComplexTwo {
    0% {
        transform: translate(0, 0) scale(1.1) rotate(360deg);
    }
    50% {
        transform: translate(-40px, -60px) scale(0.9) rotate(180deg);
    }
    100% {
        transform: translate(0, 0) scale(1.1) rotate(0deg);
    }
}


/* Layout & Grid Utama */
.latihan-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 24px;
    width: min(1180px, calc(100% - 40px));
    margin: 40px auto;
    align-items: start;
    animation: pageFloatIn 0.62s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@media (max-width: 992px) {
    .latihan-container {
        grid-template-columns: 1fr;
    }
}

/* Sidebar Daerah Cepat */
.latihan-sidebar {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 20px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(20px);
    max-height: calc(100vh - 180px);
    overflow-y: auto;
    position: sticky;
    top: 100px;
}

@media (max-width: 992px) {
    .latihan-sidebar {
        max-height: 280px;
        position: relative;
        top: 0;
    }
}

.latihan-sidebar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.latihan-sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.latihan-sidebar::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 99px;
}
.latihan-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--muted);
}

.sidebar-title {
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.region-nav-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.region-nav-item {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.24s cubic-bezier(0.4, 0, 0.2, 1);
}

.region-nav-item:hover {
    transform: translateX(4px);
    border-color: rgba(79, 140, 255, 0.4);
    box-shadow: var(--shadow-soft);
}

.region-nav-item.active {
    background: linear-gradient(135deg, rgba(50, 214, 107, 0.08), rgba(79, 140, 255, 0.06));
    border-color: var(--green);
    box-shadow: 0 8px 20px rgba(50, 214, 107, 0.1);
}

.region-nav-item .region-badge {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-weight: 900;
    font-size: 14px;
    color: white;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
}

.region-nav-item:nth-child(even) .region-badge {
    background: linear-gradient(135deg, var(--blue), var(--purple));
}

.region-nav-item .region-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.region-nav-item .region-name-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 800;
    font-size: 14px;
    color: var(--dark);
}

.region-nav-item .region-name-row span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.region-nav-item .region-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--muted);
    font-weight: 600;
}

.region-nav-item .progress-mini-bar {
    height: 4px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
    margin-top: 4px;
}

.region-nav-item .progress-mini-bar div {
    height: 100%;
    background: var(--green);
    border-radius: inherit;
    width: 0;
    transition: width 0.3s ease;
}

/* Area Konten Utama */
.latihan-main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Header Dashboard */
.latihan-dash-header {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 24px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

@media (max-width: 768px) {
    .latihan-dash-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

.latihan-dash-meta h2 {
    font-size: clamp(26px, 3.5vw, 36px);
    letter-spacing: -0.04em;
    font-weight: 900;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.latihan-dash-meta .region-mark-pill {
    background: linear-gradient(135deg, var(--green), var(--blue));
    color: white;
    font-size: 13px;
    font-weight: 900;
    padding: 4px 10px;
    border-radius: 8px;
    letter-spacing: 0.05em;
}

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

/* ==========================================================================
   Leveling & Daily Quests HUD (Gamifikasi Lanjut)
   ========================================================================== */
.latihan-hud-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 18px;
}

@media (max-width: 1100px) {
    .latihan-hud-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .latihan-hud-container {
        grid-template-columns: 1fr;
    }
}

.latihan-hud-level-card, .latihan-hud-quests-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 20px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(15px);
}

.latihan-hud-level-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.level-badge-wrap {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.circular-progress-svg {
    position: relative;
    width: 100%;
    height: 100%;
}

.circular-progress-svg svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.circular-progress-svg .circle-bg {
    fill: none;
    stroke: var(--border);
    stroke-width: 3.2;
}

.circular-progress-svg .circle-fill {
    fill: none;
    stroke: url(#levelProgressGradient);
    /* Fallback jika svg gradient tidak dimuat */
    stroke: var(--green);
    stroke-width: 3.2;
    stroke-linecap: round;
    transition: stroke-dasharray 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.circular-progress-svg .level-num-txt {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 26px;
    font-weight: 950;
    color: var(--dark);
}

.level-info-txt {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.level-info-txt .level-label {
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--muted);
    letter-spacing: 0.05em;
}

.level-info-txt strong {
    font-size: 20px;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--dark);
    background: linear-gradient(135deg, var(--green-dark), var(--blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.level-info-txt .xp-range-txt {
    font-size: 13px;
    font-weight: 750;
    color: var(--muted);
}

.latihan-hud-quests-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.quests-card-title {
    font-size: 12px;
    font-weight: 900;
    color: var(--blue);
    letter-spacing: 0.06em;
}

.quests-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quest-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.quest-item.completed {
    border-color: rgba(50, 214, 107, 0.4);
    background: rgba(50, 214, 107, 0.04);
}

.quest-item.completed .quest-desc {
    text-decoration: line-through;
    color: var(--muted);
    opacity: 0.76;
}

.quest-checkbox {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--border);
    display: grid;
    place-items: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
    font-size: 10px;
    font-weight: 900;
}

.quest-item.completed .quest-checkbox {
    border-color: var(--green);
    background-color: var(--green);
    color: white;
}

.quest-item.completed .quest-checkbox::after {
    content: none;
}

.quest-desc {
    font-size: 12.5px;
    font-weight: 750;
    color: var(--dark);
    line-height: 1.3;
}

/* Panel Statistik Sesi */
.latihan-stats-panel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

@media (max-width: 600px) {
    .latihan-stats-panel {
        grid-template-columns: repeat(2, 1fr);
    }
}

.latihan-stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 16px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(15px);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.2s ease;
}

.latihan-stat-card:hover {
    transform: translateY(-2px);
}

.latihan-stat-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 20px;
    background: var(--soft);
}

.latihan-stat-info {
    display: flex;
    flex-direction: column;
}

.latihan-stat-info strong {
    font-size: 18px;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: var(--dark);
}

.latihan-stat-info span {
    font-size: 11px;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Tabs Penyelaras Mode */
.latihan-tabs-bar {
    display: flex;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px;
    gap: 4px;
    box-shadow: var(--shadow-soft);
    overflow-x: auto;
    white-space: nowrap;
}

.latihan-tab-btn {
    border: 0;
    background: transparent;
    color: var(--muted);
    font-weight: 800;
    font-size: 13px;
    padding: 12px 20px;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.latihan-tab-btn:hover {
    color: var(--dark);
    background: rgba(102, 112, 133, 0.06);
}

.latihan-tab-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--green), var(--blue));
    box-shadow: 0 6px 15px rgba(50, 214, 107, 0.2);
}

/* Workspace Views */
.latihan-workspace-panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(20px);
    min-height: 420px;
    display: none;
    animation: pageFloatIn 0.4s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.latihan-workspace-panel.active {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Mode 1: Flashcard Premium 3D Flip */
.flashcard-interactive-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    width: 100%;
}

.flashcard-3d-wrapper {
    perspective: 1500px;
    width: 100%;
    max-width: 540px;
    height: 340px;
}

.flashcard-3d-card {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.flashcard-3d-card.flipped {
    transform: rotateY(180deg);
}

.flashcard-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border-radius: 24px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

/* Hover-Sensitive Glow Effect */
.flashcard-face::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(300px circle at var(--mouse-x, 0px) var(--mouse-y, 0px), rgba(255, 255, 255, 0.24), transparent 80%);
    z-index: 10;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.flashcard-face:hover::before {
    opacity: 1;
}

.flashcard-3d-card:hover .flashcard-face {
    box-shadow: 0 30px 70px rgba(17, 32, 51, 0.18);
}

body.dark-theme .flashcard-3d-card:hover .flashcard-face {
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
}

.flashcard-face.face-front {
    background: linear-gradient(135deg, var(--green) 0%, var(--blue) 50%, var(--purple) 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    color: white;
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.25);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.flashcard-face.face-back {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--dark);
    transform: rotateY(180deg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.flashcard-face small {
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.76;
    margin-bottom: 12px;
}

.flashcard-face strong {
    font-size: clamp(28px, 4vw, 46px);
    font-weight: 950;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 8px;
}

.card-phonetic-guide, .speaking-phonetic-guide {
    font-size: 14px;
    font-weight: 700;
    font-style: italic;
    opacity: 0.88;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 12px;
    border-radius: 99px;
    margin-bottom: 16px;
    display: inline-block;
}

.flashcard-face.face-back .card-phonetic-guide {
    color: var(--muted);
    background: var(--soft);
}

.flashcard-face p {
    font-size: 15px;
    font-weight: 550;
    line-height: 1.5;
    max-width: 80%;
    opacity: 0.88;
}

.flashcard-face.face-back p {
    color: var(--muted);
}

/* Trivia Budaya Box */
.card-trivia-box {
    margin-top: 18px;
    background: var(--soft);
    border: 1px solid var(--border);
    border-left: 4px solid var(--blue);
    border-radius: 14px;
    padding: 14px 18px;
    text-align: left;
    width: 100%;
    max-width: 90%;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
}

.card-trivia-box span {
    font-size: 10.5px;
    font-weight: 900;
    color: var(--blue);
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.card-trivia-box p {
    font-size: 12px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--muted);
    max-width: 100%;
    opacity: 0.95;
}

/* Audio Wave Visualizer */
.audio-visual-trigger {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.2);
    border: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 20;
}

.flashcard-face.face-back .audio-visual-trigger {
    background: var(--soft);
    color: var(--green-dark);
}

.audio-visual-trigger:hover {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.35);
}

.audio-wave-anim {
    display: none;
    align-items: flex-end;
    gap: 3px;
    height: 16px;
    width: 20px;
}

.audio-wave-anim.active {
    display: flex;
}

.audio-wave-bar {
    width: 3px;
    height: 100%;
    background-color: white;
    border-radius: 2px;
    animation: audioWaveBounce 0.8s ease-in-out infinite alternate;
}

.flashcard-face.face-back .audio-wave-bar {
    background-color: var(--green-dark);
}

.audio-wave-bar:nth-child(2) { animation-delay: 0.15s; }
.audio-wave-bar:nth-child(3) { animation-delay: 0.3s; }
.audio-wave-bar:nth-child(4) { animation-delay: 0.45s; }

@keyframes audioWaveBounce {
    0% { height: 20%; }
    100% { height: 100%; }
}

/* Toolbar Flashcard */
.flashcard-deck-tools {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 540px;
    gap: 12px;
}

.flashcard-deck-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Autoplay Control Bar */
.autoplay-panel {
    background: var(--soft);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 540px;
    font-size: 13px;
    font-weight: 800;
    color: var(--muted);
}

.autoplay-panel label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--dark);
}

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

.autoplay-bar {
    flex: 1;
    height: 6px;
    background: var(--border);
    border-radius: 99px;
    position: relative;
    overflow: hidden;
}

.autoplay-bar-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--green);
    width: 0;
    transition: width 0.1s linear;
}

/* Mode 2: Quiz Pilihan Ganda */
.quiz-mode-view {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
}

.quiz-question-box {
    text-align: center;
    padding: 24px;
    background: var(--soft);
    border: 1px solid var(--border);
    border-radius: 20px;
}

.quiz-question-box span {
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}

.quiz-question-box h3 {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 900;
    color: var(--dark);
    margin-top: 8px;
    letter-spacing: -0.02em;
}

.quiz-grid-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

@media (max-width: 480px) {
    .quiz-grid-options {
        grid-template-columns: 1fr;
    }
}

.quiz-grid-options .answer-btn {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 14px;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 750;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--dark);
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

body.dark-theme .quiz-grid-options .answer-btn {
    background: rgba(255, 255, 255, 0.02);
}

.quiz-grid-options .answer-btn:hover:not(:disabled) {
    transform: translateY(-3px) scale(1.01);
    border-color: var(--blue);
    box-shadow: 0 8px 24px var(--blue-glow);
}

.quiz-grid-options .answer-btn:disabled {
    cursor: not-allowed;
}

.option-badge {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--soft);
    color: var(--muted);
    font-weight: 900;
    display: grid;
    place-items: center;
    font-size: 13px;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

body.dark-theme .option-badge {
    background: rgba(255, 255, 255, 0.05);
}

.quiz-grid-options .answer-btn:hover:not(:disabled) .option-badge {
    background: var(--blue);
    color: white;
}

.quiz-grid-options .answer-btn.correct {
    background: rgba(16, 185, 129, 0.08) !important;
    border-color: var(--green) !important;
    color: var(--green-dark) !important;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.15) !important;
}

.quiz-grid-options .answer-btn.correct .option-badge {
    background: var(--green) !important;
    color: white !important;
}

.quiz-grid-options .answer-btn.wrong {
    background: rgba(239, 68, 68, 0.08) !important;
    border-color: #ff4d6d !important;
    color: #ff4d6d !important;
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.15) !important;
}

.quiz-grid-options .answer-btn.wrong .option-badge {
    background: #ff4d6d !important;
    color: white !important;
}

.quiz-feedback-box {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 15px;
    text-align: center;
}

/* Mode 3: Writing (Ketik Jawaban) */
.writing-mode-view {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    max-width: 580px;
    margin: 0 auto;
    align-items: center;
}

.writing-prompt-card {
    width: 100%;
    padding: 32px;
    text-align: center;
    background: linear-gradient(135deg, var(--blue), var(--purple));
    color: white;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.writing-prompt-card small {
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.writing-prompt-card h3 {
    font-size: 36px;
    font-weight: 950;
    letter-spacing: -0.04em;
    margin: 10px 0;
}

.writing-prompt-card p {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 550;
}

.writing-input-wrapper {
    width: 100%;
    position: relative;
}

.writing-input-field {
    width: 100%;
    padding: 18px 24px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 20px;
    border: 2px solid var(--border);
    background: var(--white);
    color: var(--dark);
    outline: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.writing-input-field:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 4px rgba(79, 140, 255, 0.15);
}

.writing-submit-btn {
    position: absolute;
    right: 8px;
    top: 8px;
    bottom: 8px;
    border-radius: 14px;
}

.writing-feedback {
    width: 100%;
    padding: 16px;
    border-radius: 16px;
    font-weight: 800;
    font-size: 14px;
    text-align: center;
    display: none;
}

.writing-feedback.correct {
    display: block;
    background: rgba(50, 214, 107, 0.1);
    color: var(--green-dark);
    border: 1px solid rgba(50, 214, 107, 0.2);
}

.writing-feedback.wrong {
    display: block;
    background: rgba(255, 77, 109, 0.1);
    color: #ff4d6d;
    border: 1px solid rgba(255, 77, 109, 0.2);
}

/* ==========================================================================
   Mode 4: Latihan Bicara (Speaking Practice)
   ========================================================================== */
.speaking-mode-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    width: 100%;
    max-width: 580px;
    margin: 0 auto;
}

.speaking-prompt-card {
    width: 100%;
    padding: 32px;
    text-align: center;
    background: linear-gradient(135deg, var(--green-dark), var(--blue));
    color: white;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.speaking-prompt-card small {
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.speaking-prompt-card h3 {
    font-size: 38px;
    font-weight: 950;
    letter-spacing: -0.04em;
    margin: 10px 0;
}

.speaking-prompt-card p {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 550;
}

.speaking-mic-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.speaking-mic-btn {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(135deg, hsl(354, 100%, 65%), var(--orange));
    color: white;
    font-size: 34px;
    cursor: pointer;
    display: grid;
    place-items: center;
    box-shadow: 0 12px 32px rgba(255, 77, 109, 0.3);
    position: relative;
    outline: none;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.speaking-mic-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 16px 40px rgba(255, 77, 109, 0.45);
}

.speaking-mic-btn:active {
    transform: scale(0.95);
}

.speaking-mic-btn.listening {
    background: linear-gradient(135deg, var(--green), var(--blue));
    box-shadow: 0 12px 32px rgba(16, 185, 129, 0.35);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Pulsing radar ring */
.mic-pulse-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid var(--orange);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.speaking-mic-btn.listening .mic-pulse-ring {
    border-color: var(--green);
    animation: micRadarPulse 2s cubic-bezier(0.1, 0.8, 0.3, 1) infinite;
}

@keyframes micRadarPulse {
    0% { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(1.3); opacity: 0; }
}

.speaking-status-text {
    font-size: 14px;
    font-weight: 800;
    color: var(--muted);
}

.speaking-transcript-box {
    width: 100%;
    padding: 16px 20px;
    background: var(--soft);
    border: 1px solid var(--border);
    border-radius: 18px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 6px;
    animation: pageFloatIn 0.3s ease;
}

.speaking-transcript-box span {
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--muted);
    letter-spacing: 0.05em;
}

.speaking-transcript-box strong {
    font-size: 18px;
    font-weight: 900;
    color: var(--dark);
}

.speaking-feedback {
    width: 100%;
    padding: 16px;
    border-radius: 16px;
    font-weight: 800;
    font-size: 14.5px;
    text-align: center;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--muted);
}

.speaking-feedback.listening {
    background: rgba(79, 140, 255, 0.08);
    color: var(--blue);
    border-color: rgba(79, 140, 255, 0.2);
}

.speaking-feedback.success {
    background: rgba(50, 214, 107, 0.1);
    color: var(--green-dark);
    border-color: rgba(50, 214, 107, 0.2);
}

.speaking-feedback.wrong {
    background: rgba(255, 77, 109, 0.1);
    color: #ff4d6d;
    border-color: rgba(255, 77, 109, 0.2);
}

/* Mode 5: Match Game (Jodohkan Kata) */
.match-mode-view {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.match-game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--soft);
    padding: 12px 18px;
    border-radius: 16px;
    border: 1px solid var(--border);
    font-weight: 800;
    font-size: 13px;
    color: var(--muted);
}

.match-timer-container {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--dark);
}

.match-timer-bar {
    width: 100px;
    height: 8px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
}

.match-timer-fill {
    height: 100%;
    background: var(--orange);
    width: 100%;
    transition: width 0.2s linear, background-color 0.5s ease;
}

.match-grid-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

@media (max-width: 520px) {
    .match-grid-board {
        grid-template-columns: repeat(2, 1fr);
    }
}

.match-item-card {
    min-height: 86px;
    padding: 12px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
    cursor: pointer;
    font-weight: 800;
    font-size: 14px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.2s ease;
    user-select: none;
}

.match-item-card:hover:not(.matched):not(.selected) {
    transform: translateY(-2px);
    border-color: rgba(79, 140, 255, 0.4);
    box-shadow: var(--shadow);
}

.match-item-card.selected {
    border-color: var(--blue);
    background: rgba(79, 140, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.12);
}

.match-item-card.correct-flash {
    background: rgba(50, 214, 107, 0.2);
    border-color: var(--green);
    color: var(--green-dark);
    animation: correctPop 0.35s ease;
}

.match-item-card.wrong-flash {
    background: rgba(255, 77, 109, 0.2);
    border-color: #ff4d6d;
    color: #ff4d6d;
    animation: wrongShake 0.35s ease;
}

.match-item-card.matched {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

/* Match Game Over Panel */
.match-game-over {
    text-align: center;
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.match-game-over h4 {
    font-size: 28px;
    font-weight: 900;
    color: var(--dark);
    letter-spacing: -0.03em;
}

.match-score-summary {
    display: flex;
    gap: 20px;
    margin: 12px 0;
}

.match-score-pill {
    background: var(--soft);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 12px 20px;
    display: flex;
    flex-direction: column;
}

.match-score-pill strong {
    font-size: 24px;
    color: var(--green-dark);
}

.match-score-pill span {
    font-size: 11px;
    color: var(--muted);
    font-weight: 700;
}

/* Panel Kosakata Samping */
.latihan-vocab-panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(20px);
}

.vocab-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}

.vocab-search-row {
    display: flex;
    gap: 10px;
    flex: 1;
    min-width: 280px;
}

.vocab-search-input-wrap {
    position: relative;
    flex: 1;
}

.vocab-search-clear {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 0;
    color: var(--muted);
    font-size: 16px;
    cursor: pointer;
    display: none;
}

.vocab-filter-chips {
    display: flex;
    gap: 8px;
}

.vocab-filter-btn {
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--muted);
    font-weight: 800;
    font-size: 12px;
    padding: 8px 14px;
    border-radius: 99px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vocab-filter-btn:hover {
    color: var(--dark);
    border-color: var(--muted);
}

.vocab-filter-btn.active {
    background: linear-gradient(135deg, var(--green), var(--blue));
    color: white;
    border-color: transparent;
}

.vocab-interactive-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 6px;
}

@media (max-width: 680px) {
    .vocab-interactive-list {
        grid-template-columns: 1fr;
    }
}

.vocab-interactive-list::-webkit-scrollbar {
    width: 6px;
}
.vocab-interactive-list::-webkit-scrollbar-track {
    background: transparent;
}
.vocab-interactive-list::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 99px;
}

.vocab-card-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px 20px;
    gap: 12px;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme .vocab-card-item {
    background: rgba(255, 255, 255, 0.02);
}

.vocab-card-item:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 24px rgba(79, 140, 255, 0.12);
    border-color: rgba(79, 140, 255, 0.3);
}

.vocab-card-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.vocab-card-body strong {
    font-size: 16px;
    font-weight: 850;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.vocab-card-body .vocab-translation {
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
}

.vocab-card-body .vocab-context {
    font-size: 11px;
    font-weight: 650;
    color: var(--green-dark);
    opacity: 0.82;
}

.vocab-card-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.vocab-icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 0;
    background: var(--white);
    color: var(--muted);
    cursor: pointer;
    display: grid;
    place-items: center;
    font-size: 13px;
    box-shadow: 0 2px 8px rgba(17, 32, 51, 0.05);
    transition: all 0.2s ease;
}

.vocab-icon-btn:hover {
    transform: scale(1.08);
    color: var(--dark);
    background: var(--soft);
}

.vocab-icon-btn.active-favorite {
    color: #ff4d6d;
}

.vocab-icon-btn.active-mastered {
    color: var(--green);
}

.vocab-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 24px;
    color: var(--muted);
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.vocab-empty-state span {
    font-size: 40px;
}

/* Penyesuaian Halaman Utama (Hero Compact) */
.wonder-page-hero.compact {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 32px 40px;
    box-shadow: var(--shadow-soft);
    margin-top: 40px;
}

@media (max-width: 768px) {
    .wonder-page-hero.compact {
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 30px;
    }
}

.wonder-page-hero.compact h1 {
    font-size: clamp(32px, 4vw, 44px);
    letter-spacing: -0.04em;
    font-weight: 900;
}

.wonder-fact-card {
    background: linear-gradient(135deg, rgba(79, 140, 255, 0.06), rgba(139, 92, 246, 0.04));
    border: 1px dashed rgba(79, 140, 255, 0.2);
    border-radius: 20px;
    padding: 16px 20px;
    max-width: 320px;
}

.wonder-fact-card span {
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--blue);
}

.wonder-fact-card p {
    font-size: 13px;
    line-height: 1.5;
    margin-top: 4px;
    font-weight: 600;
    color: var(--muted);
}


/* ==========================================================================
   MASSIVE UPDATE: Hyper-Modern Glassmorphism & UI Enhancements
   ========================================================================== */

/* Dark Mode Variables & Theming */
body.dark-theme {
    color: #f1f5f9;
}

/* Hyper Glassmorphism on Panels */
.latihan-sidebar, .latihan-dash-header, .latihan-hud-level-card, .latihan-hud-quests-card, .latihan-hud-music-card, .latihan-stat-card, .latihan-workspace-panel, .latihan-tabs-bar, .latihan-vocab-panel, .wonder-page-hero.compact {
    backdrop-filter: blur(30px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(30px) saturate(180%) !important;
    box-shadow: 0 20px 40px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.4) !important;
    border: 1px solid rgba(255,255,255,0.15) !important;
}

body.dark-theme .latihan-sidebar, body.dark-theme .latihan-dash-header, body.dark-theme .latihan-hud-level-card, body.dark-theme .latihan-hud-quests-card, body.dark-theme .latihan-hud-music-card, body.dark-theme .latihan-stat-card, body.dark-theme .latihan-workspace-panel, body.dark-theme .latihan-tabs-bar, body.dark-theme .latihan-vocab-panel, body.dark-theme .wonder-page-hero.compact {
    box-shadow: 0 20px 40px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.05) !important;
    border: 1px solid rgba(255,255,255,0.08) !important;
}

/* Typography Enhancements */
body[data-page="wonder-latihan-custom"] {
    font-family: 'Inter', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif !important;
    letter-spacing: -0.015em;
}
h1, h2, h3, h4, strong {
    letter-spacing: -0.03em !important;
}

/* Sidebar Regions Hover Elevation */
.region-nav-item {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.3s ease !important;
}
.region-nav-item:hover {
    transform: translateX(8px) scale(1.02) !important;
    box-shadow: 0 12px 24px rgba(79, 140, 255, 0.15) !important;
    border-color: rgba(79, 140, 255, 0.6) !important;
}
.region-nav-item.active {
    box-shadow: 0 12px 24px rgba(50, 214, 107, 0.25) !important;
    transform: translateX(4px) !important;
    background: linear-gradient(135deg, rgba(50, 214, 107, 0.15), rgba(79, 140, 255, 0.1)) !important;
}

/* Dashboard Pulse Animation (XP Gained) */
@keyframes xpPulse {
    0% { transform: scale(1); box-shadow: 0 0 0 rgba(50,214,107,0); }
    50% { transform: scale(1.05); box-shadow: 0 0 20px rgba(50,214,107,0.6); }
    100% { transform: scale(1); box-shadow: 0 0 0 rgba(50,214,107,0); }
}
.xp-gained-anim {
    animation: xpPulse 0.6s cubic-bezier(0.2, 0.8, 0.2, 1) !important;
}

/* Smooth Tab Indicator Slider */
.latihan-tabs-bar {
    position: relative;
    z-index: 1;
}
.latihan-tab-indicator {
    position: absolute;
    top: 6px;
    bottom: 6px;
    left: 0;
    width: 0;
    background: linear-gradient(135deg, var(--green), var(--blue));
    border-radius: 14px;
    z-index: -1;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 6px 15px rgba(50, 214, 107, 0.3);
}
.latihan-tab-btn.active {
    background: transparent !important;
    box-shadow: none !important;
    color: white !important;
}

/* Fade Transitions for Panels */
.latihan-workspace-panel {
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.latihan-workspace-panel.fade-out {
    opacity: 0;
    transform: translateY(10px);
}
.latihan-workspace-panel.fade-in {
    opacity: 0;
    transform: translateY(-10px);
    animation: none !important;
}
.latihan-workspace-panel.active.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* Match Game Card Enhancements */
@keyframes shakeWrong {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px) rotate(-2deg); }
    40%, 80% { transform: translateX(6px) rotate(2deg); }
}
.match-item-card.wrong-flash {
    animation: shakeWrong 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97) both !important;
    background: rgba(255, 77, 109, 0.1) !important;
    border-color: #ff4d6d !important;
    color: #ff4d6d !important;
    box-shadow: 0 8px 24px rgba(255, 77, 109, 0.15) !important;
}
.match-item-card.matched {
    transform: scale(0.95) !important;
    opacity: 0.7;
    background: linear-gradient(135deg, var(--green), var(--green-dark)) !important;
    color: white !important;
    border-color: transparent !important;
    box-shadow: 0 0 20px rgba(50, 214, 107, 0.4) !important;
}

/* Button Hover Gloss */
.btn-primary, .btn-blue {
    position: relative;
    overflow: hidden;
}
.btn-primary::after, .btn-blue::after {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: skewX(-20deg);
    transition: 0s;
}
.btn-primary:hover::after, .btn-blue:hover::after {
    left: 150%;
    transition: 0.6s ease-in-out;
}

/* Kamus Daerah Table List Enhancements */
.vocab-interactive-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    padding-top: 10px;
}


/* ==========================================================================
   LATIHAN BAHASA: NEW PREMIUM FEATURE STYLES
   ========================================================================== */

/* Ambient Focus Music Card */
.latihan-hud-music-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 20px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(15px);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.latihan-hud-music-card .music-card-title {
    font-size: 12px;
    font-weight: 900;
    color: var(--blue);
    letter-spacing: 0.06em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.music-player-layout {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.music-controls-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.music-play-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 0;
    background: linear-gradient(135deg, var(--green), var(--blue));
    color: white;
    font-size: 14px;
    cursor: pointer;
    display: grid;
    place-items: center;
    box-shadow: 0 4px 10px rgba(50, 214, 107, 0.2);
    transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    outline: none;
}

.music-play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 14px rgba(50, 214, 107, 0.3);
}

.music-play-btn.playing {
    background: linear-gradient(135deg, #ff4d6d, var(--orange));
    box-shadow: 0 4px 10px rgba(255, 77, 109, 0.2);
}

.music-track-select {
    flex: 1;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 750;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--dark);
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s;
}

.music-track-select:focus {
    border-color: var(--blue);
}

body.dark-theme .music-track-select {
    background: rgba(255, 255, 255, 0.05);
}

.music-volume-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--muted);
}

.music-volume-slider {
    flex: 1;
    accent-color: var(--blue);
    height: 4px;
    cursor: pointer;
}

#musicWaveCanvas {
    width: 100%;
    height: 24px;
    background: rgba(102, 112, 133, 0.04);
    border-radius: 8px;
    display: block;
}

/* Speaking Wave Visualizer */
#speakingWaveCanvas {
    width: 100%;
    max-width: 300px;
    height: 60px;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: block;
}

body.dark-theme #speakingWaveCanvas {
    background: rgba(255, 255, 255, 0.02);
}

/* Keyframe Animations for Match Game & UI Polish */
@keyframes correctPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); box-shadow: 0 0 22px rgba(50, 214, 107, 0.7); }
    100% { transform: scale(1); }
}

@keyframes wrongShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px) rotate(-1.5deg); }
    40%, 80% { transform: translateX(8px) rotate(1.5deg); }
}

.match-item-card.correct-flash {
    animation: correctPop 0.35s ease-out both !important;
}

.match-item-card.wrong-flash {
    animation: wrongShake 0.35s ease-out both !important;
}

/* 3D tilt smoothness */
#flashcardCard {
    transition: transform 0.15s ease-out, box-shadow 0.3s ease;
    transform-style: preserve-3d;
}

#flashcardCard.flipped {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}