*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --bg: #09090e;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.06);
    --card-hover-border: rgba(255, 255, 255, 0.15);
    --text: #f3f3f7;
    --text-muted: #8e8e9f;
    --text-dark: #585869;
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Outfit', sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

/* DYNAMIC BG GRADIENTS */
.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
    background-color: var(--bg);
}
.bg-mesh::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 30%, var(--g1) 0%, transparent 45%),
                radial-gradient(circle at 80% 70%, var(--g2) 0%, transparent 45%);
    opacity: 0.15;
    filter: blur(60px);
    transition: background 1.5s ease-in-out;
    animation: floatG 25s ease-in-out infinite alternate;
}
@keyframes floatG {
    0% { transform: rotate(0deg) translate(0, 0) scale(1); }
    50% { transform: rotate(90deg) translate(-2%, 3%) scale(1.05); }
    100% { transform: rotate(180deg) translate(1%, -2%) scale(0.95); }
}

/* PROGRESS BAR */
.progress-bar-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    z-index: 1000;
}
.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--ac1), var(--ac2));
    transition: width 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 0 15px var(--ac1);
}

/* HEADER & NAVIGATION */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    z-index: 100;
    background: linear-gradient(180deg, rgba(9,9,14,0.8) 0%, transparent 100%);
    backdrop-filter: blur(10px);
}
.logo {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text);
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}
.week-tabs {
    display: flex;
    gap: 6px;
}
.week-tab {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    border: 1px solid transparent;
    background: rgba(255,255,255,0.02);
    color: var(--text-muted);
    transition: var(--transition);
}
.week-tab:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(255,255,255,0.1);
    color: var(--text);
}
.week-tab.active {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    color: var(--text);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.slide-counter {
    font-size: 13px;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}
.slide-counter span {
    color: var(--text);
    font-weight: 700;
}

/* SLIDE CONTAINER */
.slides-container {
    position: relative;
    width: 100%;
    height: 100%;
}
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.97) translateY(10px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), 
                transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
    pointer-events: none;
    padding: 90px 40px 80px;
    z-index: 1;
}
.slide.active {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
    z-index: 2;
}

/* INTRO SLIDE */
.intro-slide {
    flex-direction: column;
    text-align: center;
    gap: 24px;
}
.eq-bars {
    display: flex;
    gap: 4px;
    align-items: flex-end;
    height: 30px;
    margin-bottom: 10px;
}
.eq-bar {
    width: 4px;
    border-radius: 2px;
    background: var(--ac1);
    animation: pulseBar var(--sp, 0.6s) ease-in-out infinite alternate;
}
@keyframes pulseBar {
    from { height: 4px; }
    to { height: 26px; }
}
.main-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(40px, 8vw, 84px);
    font-weight: 700;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.main-subtitle {
    font-size: clamp(14px, 2.2vw, 18px);
    font-weight: 300;
    line-height: 1.7;
    color: var(--text-muted);
    max-width: 600px;
}
.start-action {
    margin-top: 30px;
    padding: 12px 30px;
    border-radius: 30px;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.start-action:hover {
    border-color: var(--ac1);
    box-shadow: 0 0 20px rgba(255,255,255,0.05), 0 0 15px var(--ac1);
    transform: translateY(-2px);
}

/* WEEK SLIDE DIVIDER */
.week-slide {
    flex-direction: column;
    text-align: center;
    gap: 20px;
}
.week-big-num {
    font-size: clamp(100px, 20vw, 240px);
    font-weight: 900;
    line-height: 0.8;
    font-family: 'Playfair Display', serif;
    background: linear-gradient(180deg, var(--ac1), transparent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.25;
    margin-bottom: -40px;
}
.week-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(28px, 5vw, 54px);
    font-weight: 700;
    letter-spacing: 1px;
}
.week-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 300;
    max-width: 500px;
    line-height: 1.6;
}
.week-quote {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 18px;
    color: var(--ac1);
    max-width: 600px;
    margin-top: 10px;
}
.week-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    max-width: 600px;
    margin-top: 20px;
}
.week-pill {
    padding: 8px 18px;
    border-radius: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}
.week-pill:hover {
    border-color: var(--ac1);
    color: var(--text);
    background: rgba(255,255,255,0.05);
}

/* SONG CHALLENGE SLIDE */
.song-container {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1300px;
    width: 100%;
}
.song-left {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: left;
}
.song-badge-row {
    display: flex;
    align-items: center;
    gap: 15px;
}
.day-badge {
    display: inline-flex;
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
}
.day-badge span {
    color: var(--text);
    margin-left: 4px;
}
.song-assignment {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--ac1);
    text-shadow: 0 0 10px rgba(255,255,255,0.05);
}
.song-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(32px, 5vw, 60px);
    font-weight: 700;
    line-height: 1.1;
}
.song-artist {
    font-size: clamp(16px, 2.5vw, 24px);
    font-weight: 300;
    color: var(--text-muted);
}
.song-artist::before {
    content: '♪  ';
    color: var(--ac1);
}
.song-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--ac1), transparent);
    border-radius: 1px;
}
.song-comment-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dark);
    margin-bottom: -10px;
}
.song-comment {
    font-size: clamp(14px, 1.6vw, 17px);
    font-weight: 300;
    line-height: 1.8;
    color: var(--text-muted);
    font-style: italic;
}
.song-comment::before {
    content: '«';
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    color: var(--ac1);
    margin-right: 5px;
}
.song-comment::after {
    content: '»';
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    color: var(--ac1);
    margin-left: 5px;
}

/* SONG RIGHT (AUDIO PLAYER & VINYL) */
.song-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
}
.vinyl-container {
    position: relative;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: #000;
    box-shadow: 0 15px 40px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.vinyl-container::before {
    content: '';
    position: absolute;
    inset: 5px;
    border-radius: 50%;
    border: 2px dashed rgba(255, 255, 255, 0.05);
}
.vinyl-grooves {
    position: absolute;
    inset: 20px;
    border-radius: 50%;
    background: repeating-radial-gradient(
        circle,
        #0b0b0b,
        #0b0b0b 2px,
        #141414 4px,
        #0b0b0b 6px
    );
    opacity: 0.9;
}
.vinyl-cover {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--ac1), var(--ac2));
    z-index: 2;
    border: 3px solid #000;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}
.vinyl-cover::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #09090e;
    border: 1px solid rgba(255,255,255,0.1);
}
.vinyl-note-art {
    font-size: 28px;
    color: #fff;
    opacity: 0.85;
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.vinyl-container.spinning {
    animation: spin 5s linear infinite;
}
@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* CUSTOM CONTROLS PLAYER */
.custom-player {
    width: 100%;
    max-width: 380px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}
.custom-player:hover {
    border-color: var(--card-hover-border);
}
.player-row-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.play-pause-btn {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ac1), var(--ac2));
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3), 0 0 20px rgba(255,255,255,0.05);
}
.play-pause-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3), 0 0 25px var(--ac1);
}
.play-pause-btn:active {
    transform: scale(0.95);
}
.play-svg, .pause-svg {
    fill: #fff;
    width: 22px;
    height: 22px;
}
.pause-svg {
    display: none;
}
.custom-player.playing .play-svg {
    display: none;
}
.custom-player.playing .pause-svg {
    display: block;
}
.player-seek-container {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}
.seek-bar {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    cursor: pointer;
}
.seek-bar::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    border-radius: 2px;
}
.seek-bar::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    margin-top: -4px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
    transition: transform 0.1s;
}
.seek-bar::-webkit-slider-thumb:hover {
    transform: scale(1.3);
}
.player-times {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    font-family: monospace;
}

.player-row-extra {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    border-top: 1px solid rgba(255,255,255,0.03);
    padding-top: 8px;
}
.vol-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
    transition: var(--transition);
}
.vol-btn:hover {
    color: var(--text);
}
.vol-slider {
    -webkit-appearance: none;
    width: 70px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255,255,255,0.1);
    outline: none;
    cursor: pointer;
}
.vol-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}
.vol-slider::-webkit-slider-thumb:hover {
    background: var(--text);
}

/* PLAYLIST SLIDE */
.playlist-slide {
    flex-direction: column;
    gap: 20px;
}
.playlist-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(24px, 4vw, 42px);
    font-weight: 700;
    text-align: center;
}
.playlist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    max-width: 800px;
    width: 100%;
    margin-top: 10px;
}
.playlist-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 18px;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}
.playlist-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--card-hover-border);
    transform: translateX(4px);
}
.playlist-card.playing {
    border-color: var(--ac1);
    background: rgba(255,255,255,0.05);
    box-shadow: 0 0 15px rgba(255,255,255,0.02);
}
.pl-number {
    font-size: 13px;
    font-weight: 800;
    color: var(--ac1);
    min-width: 24px;
}
.pl-info {
    flex: 1;
}
.pl-song-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}
.pl-song-artist {
    font-size: 11px;
    color: var(--text-muted);
}
.pl-play-icon {
    font-size: 14px;
    color: var(--ac1);
    opacity: 0.5;
    transition: var(--transition);
}
.playlist-card:hover .pl-play-icon {
    opacity: 1;
}

/* FINAL SLIDE */
.final-slide {
    flex-direction: column;
    text-align: center;
    gap: 20px;
}
.thanks-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(36px, 6vw, 70px);
    font-weight: 700;
    background: linear-gradient(135deg, var(--ac1), var(--ac2), #c77dff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.final-quote {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 19px;
    color: var(--text-muted);
    max-width: 500px;
    line-height: 1.6;
}
.final-author {
    font-size: 12px;
    color: var(--text-dark);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* LOWER NAVIGATION SYSTEM */
.navigation {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 100;
}
.nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: rgba(255,255,255,0.02);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    font-size: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.nav-btn:hover:not(:disabled) {
    background: rgba(255,255,255,0.08);
    border-color: var(--ac1);
    transform: scale(1.05);
}
.nav-btn:active:not(:disabled) {
    transform: scale(0.95);
}
.nav-btn:disabled {
    opacity: 0.15;
    cursor: not-allowed;
}
.dots {
    display: flex;
    gap: 6px;
}
.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    cursor: pointer;
    transition: var(--transition);
}
.dot.active {
    width: 22px;
    border-radius: 3px;
    background: var(--ac1);
    box-shadow: 0 0 10px var(--ac1);
}
.kb-hint {
    position: fixed;
    bottom: 15px;
    right: 40px;
    font-size: 10px;
    color: var(--text-dark);
    z-index: 100;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.kb-key {
    padding: 1px 5px;
    border-radius: 3px;
    border: 1px solid rgba(255,255,255,0.06);
    font-family: monospace;
}

/* QUICK JUMP OVERLAY */
.quick-jump-overlay {
    position: fixed;
    inset: 0;
    background: rgba(9, 9, 14, 0.85);
    backdrop-filter: blur(15px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.quick-jump-overlay.active {
    opacity: 1;
    pointer-events: auto;
}
.quick-jump-modal {
    width: 90%;
    max-width: 480px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 24px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    transform: scale(0.95) translateY(10px);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.quick-jump-overlay.active .quick-jump-modal {
    transform: scale(1) translateY(0);
}
.quick-jump-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 12px;
}
.quick-jump-header h3 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
}
.quick-jump-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}
.quick-jump-close:hover {
    color: var(--text);
}
.quick-jump-grid {
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding-right: 4px;
}
.quick-jump-grid::-webkit-scrollbar {
    width: 4px;
}
.quick-jump-grid::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
}
.quick-jump-item {
    padding: 12px 6px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition);
}
.quick-jump-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text);
    transform: translateY(-1px);
}
.quick-jump-item.active {
    background: linear-gradient(135deg, var(--ac1), var(--ac2));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.05);
}
.quick-jump-item.special {
    grid-column: span 2;
    font-size: 11px;
    background: rgba(255, 255, 255, 0.04);
}
.quick-jump-item.special:hover {
    background: rgba(255, 255, 255, 0.1);
}
.quick-jump-item.special.active {
    background: linear-gradient(135deg, var(--ac1), var(--ac2));
    color: #fff;
}

.slide-counter.quick-jump-trigger {
    cursor: pointer;
    transition: var(--transition);
    padding: 4px 8px;
    border-radius: 12px;
}
.slide-counter.quick-jump-trigger:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
}

/* RESPONSIVENESS */
@media(max-width: 950px) {
    .song-container {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    .song-left {
        align-items: center;
        text-align: center;
    }
    .song-comment {
        text-align: center;
    }
    .vinyl-container {
        width: 260px;
        height: 260px;
    }
    .vinyl-cover {
        width: 130px;
        height: 130px;
    }
    .header {
        padding: 15px 20px;
    }
    .slide {
        padding: 85px 20px 80px;
    }
    .playlist-grid {
        grid-template-columns: 1fr;
        max-height: 380px;
        overflow-y: auto;
        padding-right: 5px;
    }
}
@media(max-width: 768px) {
    .dots {
        display: none;
    }
    .navigation {
        bottom: 15px;
        gap: 30px;
    }
    .slide {
        padding: 70px 16px 85px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    .song-container {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 12px;
        width: 100%;
        max-width: 450px;
        margin: auto 0;
    }
    .song-left, .song-right {
        display: contents;
    }
    .song-badge-row {
        order: 1;
        justify-content: center;
        width: 100%;
    }
    .song-title {
        order: 2;
        font-size: clamp(22px, 5.5vw, 32px);
        text-align: center;
        margin-top: 4px;
        width: 100%;
    }
    .song-artist {
        order: 3;
        font-size: 15px;
        text-align: center;
        margin-bottom: 8px;
        width: 100%;
    }
    .vinyl-container {
        order: 4;
        width: 170px;
        height: 170px;
        margin: 10px auto;
    }
    .vinyl-cover {
        width: 90px;
        height: 90px;
    }
    .custom-player {
        order: 5;
        width: 100%;
        max-width: 320px;
        margin: 0 auto 10px;
        padding: 12px 15px;
    }
    .player-row-extra {
        display: none;
    }
    .song-divider {
        order: 6;
        margin: 8px auto;
        width: 40px;
    }
    .song-comment-title {
        order: 7;
        font-size: 10px;
        text-align: center;
        margin-bottom: 2px;
        width: 100%;
    }
    .song-comment {
        order: 8;
        font-size: 14px;
        line-height: 1.5;
        text-align: center;
        max-width: 360px;
        margin: 0 auto;
        width: 100%;
    }
    .playlist-grid {
        grid-template-columns: 1fr;
        max-height: 320px;
        overflow-y: auto;
        width: 100%;
        padding-right: 4px;
    }
    .playlist-card {
        padding: 10px 14px;
        gap: 10px;
    }
    .intro-slide, .week-slide, .final-slide {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: 100%;
        padding: 80px 16px;
    }
    .week-pills {
        gap: 6px;
    }
    .week-pill {
        padding: 6px 12px;
        font-size: 11px;
    }
    .header {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 10px 0;
        padding: 12px 16px;
        width: 100%;
    }
    .logo {
        grid-column: 1;
        grid-row: 1;
        align-self: center;
    }
    .header-actions {
        grid-column: 2;
        grid-row: 1;
        align-self: center;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .week-tabs {
        grid-column: 1 / span 2;
        grid-row: 2;
        max-width: 100% !important;
        width: 100%;
        display: flex;
        gap: 8px;
        overflow-x: auto;
        white-space: nowrap;
        padding: 4px 0;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .week-tabs::-webkit-scrollbar {
        display: none;
    }
}
@media(max-width: 650px) {
    .week-tab {
        padding: 4px 10px;
        font-size: 10px;
        flex-shrink: 0;
    }
    .kb-hint { display: none; }
    .logo {
        font-size: 11px;
        letter-spacing: 2px;
    }
    .slide-counter {
        font-size: 11px;
    }
}

/* LANGUAGE TOGGLE BUTTON */
.lang-toggle-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text);
    padding: 4px 10px;
    font-size: 11px;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.lang-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--ac1);
    color: var(--text);
    transform: scale(1.05);
}
.lang-toggle-btn:active {
    transform: scale(0.95);
}