/* =============================================================
   Music — Pascal PORTIER
   Thème sombre avec accents colorés — Sprint 2+3
   ============================================================= */

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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a26;
    --bg-card-hover: #222233;
    --bg-player: #0d0d15;
    --text-primary: #e8e6f0;
    --text-secondary: #8a889a;
    --text-dim: #55536a;
    --accent-1: #ff6b4a;
    --accent-2: #a855f7;
    --accent-3: #06d6a0;
    --accent-4: #f59e0b;
    --accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --border-subtle: rgba(255,255,255,0.06);
    --shadow-glow: 0 0 30px rgba(168,85,247,0.15);
    --shadow-glow-orange: 0 0 25px rgba(255,107,74,0.2);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --font-main: 'Segoe UI', 'Noto Sans', 'Liberation Sans', sans-serif;
    --font-mono: 'Cascadia Code', 'Fira Code', 'Liberation Mono', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.15s ease;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(168,85,247,0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 100%, rgba(255,107,74,0.06) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.hidden { display: none !important; }

/* ---- LOADER VINYLE ---- */
.loader {
    position: fixed; inset: 0;
    background: var(--bg-primary);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}
.loader.fade-out { opacity: 0; visibility: hidden; }

.vinyl-container { position: relative; width: 200px; height: 200px; }

.vinyl {
    width: 180px; height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, #1a1a1a 0%, #111 20%, #1a1a1a 21%, #0d0d0d 40%, #1a1a1a 41%, #111 60%, #1a1a1a 61%, #0d0d0d 80%, #222 100%);
    border: 3px solid #333;
    position: absolute; left: 10px; top: 10px;
    animation: vinyl-spin 2s linear infinite;
    box-shadow: 0 0 0 2px rgba(255,255,255,0.05), 0 0 40px rgba(168,85,247,0.2);
}
.vinyl-label {
    position: absolute; top: 50%; left: 50%;
    width: 60px; height: 60px; margin: -30px 0 0 -30px;
    border-radius: 50%; background: var(--accent-gradient);
    display: flex; align-items: center; justify-content: center;
}
.vinyl-text { color: white; font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }
.vinyl-groove { position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,0.04); }
.groove-1 { inset: 38px; } .groove-2 { inset: 50px; } .groove-3 { inset: 62px; }
.vinyl-hole {
    position: absolute; top: 50%; left: 50%;
    width: 8px; height: 8px; margin: -4px 0 0 -4px;
    background: var(--bg-primary); border-radius: 50%; z-index: 2;
}
@keyframes vinyl-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.tonearm {
    position: absolute; top: 5px; right: 15px;
    width: 6px; height: 90px;
    background: linear-gradient(to bottom, #888, #555);
    border-radius: 3px; transform-origin: top center;
    animation: tonearm-drop 1.5s ease-out 0.5s forwards;
    transform: rotate(-30deg); z-index: 3;
}
.tonearm-head {
    position: absolute; bottom: -6px; left: -3px;
    width: 12px; height: 12px;
    background: var(--accent-1); border-radius: 2px;
    clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
}
@keyframes tonearm-drop {
    0% { transform: rotate(-30deg); } 60% { transform: rotate(-5deg); }
    80% { transform: rotate(-8deg); } 100% { transform: rotate(-5deg); }
}

.loader-text {
    margin-top: 40px; color: var(--text-secondary);
    font-size: 0.9rem; letter-spacing: 1px;
    animation: pulse-text 1.5s ease-in-out infinite;
}
@keyframes pulse-text { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }

/* ---- HEADER ---- */
.app { position: relative; z-index: 1; padding-bottom: 140px; }

.site-header {
    text-align: center;
    padding: 3rem 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}
.site-title {
    font-size: 2.5rem; font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.title-icon { font-size: 2rem; -webkit-text-fill-color: var(--accent-1); }
.site-subtitle { color: var(--text-secondary); font-size: 1rem; margin-top: 0.5rem; font-weight: 300; }

/* ---- ACTION BAR ---- */
.action-bar { display: flex; justify-content: center; padding: 1.5rem 1rem 0.5rem; }

.btn-surprise {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.75rem 2rem;
    background: var(--accent-gradient); color: #fff; border: none;
    border-radius: 50px; font-size: 1rem; font-weight: 700; font-family: inherit;
    cursor: pointer; transition: var(--transition);
    box-shadow: var(--shadow-glow-orange);
    position: relative; overflow: hidden;
}
.btn-surprise::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transform: translateX(-100%); transition: transform 0.6s;
}
.btn-surprise:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 0 40px rgba(255,107,74,0.35); }
.btn-surprise:hover::before { transform: translateX(100%); }
.btn-surprise:active { transform: scale(0.97); }
.surprise-icon { font-size: 1.3rem; animation: dice-wobble 3s ease-in-out infinite; }
@keyframes dice-wobble { 0%, 100% { transform: rotate(0deg); } 25% { transform: rotate(10deg); } 75% { transform: rotate(-10deg); } }

/* ---- MOOD FILTERS ---- */
.mood-filters {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem;
    padding: 1rem 1rem 0.5rem; max-width: 800px; margin: 0 auto;
}
.mood-btn {
    display: inline-flex; align-items: center; gap: 0.35rem;
    padding: 0.45rem 0.9rem; border: 1px solid var(--border-subtle);
    border-radius: 50px; background: var(--bg-secondary);
    color: var(--text-secondary); cursor: pointer;
    font-size: 0.85rem; font-family: inherit;
    transition: var(--transition); white-space: nowrap;
}
.mood-btn:hover { background: var(--bg-card); color: var(--text-primary); border-color: rgba(255,255,255,0.12); transform: translateY(-1px); }
.mood-btn.active { background: var(--accent-gradient); color: #fff; border-color: transparent; box-shadow: var(--shadow-glow); }
.mood-emoji { font-size: 1.05rem; }

/* ---- COLLECTION BAR ---- */
.collection-bar {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 800px; margin: 0 auto; padding: 0.5rem 1rem 0.8rem;
}
.collection-stats { color: var(--text-dim); font-size: 0.85rem; }
.stats-sep { margin: 0 0.4rem; opacity: 0.5; }

.sort-controls { display: flex; gap: 0.25rem; }
.sort-btn {
    background: transparent; border: 1px solid transparent;
    color: var(--text-dim); font-size: 0.95rem; cursor: pointer;
    padding: 0.3rem 0.5rem; border-radius: var(--radius-sm);
    transition: var(--transition-fast); line-height: 1;
}
.sort-btn:hover { background: var(--bg-card); color: var(--text-primary); }
.sort-btn.active { background: var(--bg-card); border-color: var(--border-subtle); color: var(--text-primary); }

/* ---- TRACK LIST ---- */
.track-list { max-width: 800px; margin: 0 auto; padding: 0 1rem 2rem; }

.empty-state { text-align: center; color: var(--text-dim); padding: 4rem 1rem; font-size: 1.1rem; }
.empty-state-icon { font-size: 3rem; display: block; margin-bottom: 1rem; opacity: 0.4; }

.track-card {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.9rem 1.2rem; margin-bottom: 0.4rem;
    background: var(--bg-card); border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle); cursor: pointer;
    transition: var(--transition); position: relative; overflow: hidden;
    opacity: 0; transform: translateY(12px);
    animation: card-enter 0.4s ease forwards;
}
.track-card:nth-child(1) { animation-delay: 0.02s; }
.track-card:nth-child(2) { animation-delay: 0.06s; }
.track-card:nth-child(3) { animation-delay: 0.10s; }
.track-card:nth-child(4) { animation-delay: 0.14s; }
.track-card:nth-child(5) { animation-delay: 0.18s; }
.track-card:nth-child(6) { animation-delay: 0.22s; }
.track-card:nth-child(7) { animation-delay: 0.26s; }
.track-card:nth-child(8) { animation-delay: 0.30s; }
.track-card:nth-child(9) { animation-delay: 0.34s; }
.track-card:nth-child(10) { animation-delay: 0.38s; }
.track-card:nth-child(n+11) { animation-delay: 0.40s; }

@keyframes card-enter { to { opacity: 1; transform: translateY(0); } }

.track-card::before {
    content: ''; position: absolute; inset: 0;
    background: var(--accent-gradient); opacity: 0; transition: opacity 0.3s;
}
.track-card:hover { background: var(--bg-card-hover); border-color: rgba(255,255,255,0.1); transform: translateX(4px); }
.track-card:hover::before { opacity: 0.03; }
.track-card.playing { border-color: var(--accent-2); box-shadow: var(--shadow-glow); background: var(--bg-card-hover); }

.track-mood-icon {
    width: 44px; height: 44px; min-width: 44px;
    border-radius: var(--radius-sm); background: var(--bg-secondary);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; position: relative; z-index: 1;
    border: 1px solid var(--border-subtle);
}
.track-card.playing .track-mood-icon {
    background: var(--accent-gradient); border-color: transparent;
    animation: icon-pulse 1.5s ease-in-out infinite;
}
@keyframes icon-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.08); } }

/* Track cover art */
.track-cover {
    width: 44px; height: 44px; min-width: 44px;
    border-radius: var(--radius-sm); overflow: hidden;
    position: relative; z-index: 1;
    border: 1px solid var(--border-subtle);
}
.track-cover img {
    width: 100%; height: 100%; object-fit: cover;
    display: block;
}
.track-card.playing .track-cover {
    border-color: var(--accent-2);
    box-shadow: 0 0 12px rgba(168,85,247,0.3);
}

/* Player cover art */
.player-cover {
    grid-row: 1; width: 42px; height: 42px;
    border-radius: var(--radius-sm); overflow: hidden;
    border: 1px solid var(--border-subtle);
    flex-shrink: 0;
}
.player-cover img {
    width: 100%; height: 100%; object-fit: cover; display: block;
}

.track-info { flex: 1; min-width: 0; position: relative; z-index: 1; }
.track-title {
    font-weight: 600; font-size: 0.95rem; color: var(--text-primary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.track-card.playing .track-title { color: var(--accent-2); }

.track-desc {
    font-size: 0.78rem; color: var(--text-secondary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    margin-top: 0; max-height: 0; opacity: 0;
    transition: max-height 0.3s, opacity 0.3s, margin 0.3s;
}
.track-card:hover .track-desc, .track-card.playing .track-desc {
    max-height: 40px; opacity: 1; margin-top: 3px;
}

.track-moods { display: flex; gap: 0.25rem; margin-top: 4px; flex-wrap: wrap; }
.track-mood-tag {
    font-size: 0.7rem; padding: 1px 7px; border-radius: 50px;
    background: rgba(168,85,247,0.1); color: var(--accent-2);
    border: 1px solid rgba(168,85,247,0.15);
}

.track-meta {
    display: flex; flex-direction: column; align-items: flex-end;
    gap: 3px; position: relative; z-index: 1; min-width: 50px;
}
.track-duration { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-dim); }
.track-plays { font-size: 0.7rem; color: var(--text-dim); display: flex; align-items: center; gap: 3px; }

/* ---- PLAYER ---- */
.player {
    position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--bg-player); border-top: 1px solid var(--border-subtle);
    padding: 0.8rem 1.2rem; z-index: 100;
    display: grid; grid-template-columns: auto 1fr auto auto; grid-template-rows: auto auto;
    gap: 0.3rem 1rem; align-items: center;
    backdrop-filter: blur(20px); box-shadow: 0 -4px 30px rgba(0,0,0,0.5);
    animation: player-slide-up 0.4s ease;
}
@keyframes player-slide-up { from { transform: translateY(100%); } to { transform: translateY(0); } }

.player-visualizer {
    position: absolute; bottom: 100%; left: 0; right: 0;
    height: 60px; cursor: pointer; opacity: 0.85;
    transition: height 0.3s, opacity 0.3s;
    background: linear-gradient(to top, var(--bg-player), transparent);
}
.player-visualizer:hover { opacity: 1; height: 80px; }
.visualizer-canvas { width: 100%; height: 100%; display: block; }
.viz-mode-label {
    position: absolute; top: 4px; right: 8px;
    font-size: 0.65rem; color: var(--text-dim);
    opacity: 0; transition: opacity 0.3s;
    pointer-events: none; letter-spacing: 0.5px;
    text-transform: uppercase;
}
.player-visualizer:hover .viz-mode-label { opacity: 1; }

.player-info { grid-column: 2; grid-row: 1; min-width: 0; }
.player-track-name { font-weight: 600; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-track-moods { font-size: 0.75rem; color: var(--text-secondary); }

.player-controls { grid-column: 3; grid-row: 1; display: flex; align-items: center; gap: 0.2rem; }
.ctrl-btn {
    background: transparent; border: none; color: var(--text-secondary);
    font-size: 1.2rem; cursor: pointer; padding: 0.35rem; border-radius: 50%;
    transition: var(--transition-fast);
    display: flex; align-items: center; justify-content: center;
    width: 38px; height: 38px;
}
.ctrl-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.08); }
.ctrl-btn.ctrl-active { color: var(--accent-1); }
.ctrl-play {
    background: var(--accent-gradient); color: #fff;
    width: 44px; height: 44px; font-size: 1.3rem;
}
.ctrl-play:hover { transform: scale(1.08); box-shadow: var(--shadow-glow); color: #fff; }

.player-volume { grid-column: 4; grid-row: 1; display: flex; align-items: center; gap: 0.4rem; }
.volume-icon { font-size: 1rem; cursor: pointer; }
.volume-bar { width: 80px; }

.player-progress { grid-column: 1 / -1; grid-row: 2; display: flex; align-items: center; gap: 0.5rem; }
.time { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-dim); min-width: 38px; text-align: center; }

.progress-bar, .volume-bar {
    -webkit-appearance: none; appearance: none;
    height: 4px; background: rgba(255,255,255,0.1);
    border-radius: 2px; outline: none; cursor: pointer; flex: 1;
}
.progress-bar::-webkit-slider-thumb, .volume-bar::-webkit-slider-thumb {
    -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
    background: var(--accent-1); cursor: pointer;
    box-shadow: 0 0 8px rgba(255,107,74,0.4); transition: transform 0.15s;
}
.progress-bar::-webkit-slider-thumb:hover, .volume-bar::-webkit-slider-thumb:hover { transform: scale(1.3); }
.progress-bar::-moz-range-thumb, .volume-bar::-moz-range-thumb {
    width: 14px; height: 14px; border-radius: 50%;
    background: var(--accent-1); cursor: pointer; border: none;
    box-shadow: 0 0 8px rgba(255,107,74,0.4);
}
.progress-bar::-moz-range-track, .volume-bar::-moz-range-track {
    height: 4px; background: rgba(255,255,255,0.1); border-radius: 2px;
}

/* ---- ADMIN ---- */
.admin-body { background: var(--bg-primary); }
.admin-body::before { display: none; }
.admin-container { max-width: 900px; margin: 0 auto; padding: 1.5rem; }
.admin-header { display: flex; align-items: center; justify-content: space-between; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-subtle); margin-bottom: 2rem; }
.admin-header h1 { font-size: 1.5rem; }
.admin-link-front { color: var(--accent-1); text-decoration: none; font-size: 0.9rem; }
.admin-link-front:hover { text-decoration: underline; }
.admin-section { margin-bottom: 2.5rem; }
.admin-section h2 { font-size: 1.2rem; margin-bottom: 1rem; color: var(--text-primary); border-left: 3px solid var(--accent-1); padding-left: 0.8rem; }

.upload-form { background: var(--bg-card); padding: 1.5rem; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 0.4rem; }
.form-group small { font-size: 0.75rem; color: var(--text-dim); }
.form-group input[type="text"], .form-group input[type="file"], .form-group textarea {
    width: 100%; padding: 0.7rem 1rem; background: var(--bg-secondary);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-sm);
    color: var(--text-primary); font-family: inherit; font-size: 0.9rem; transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(168,85,247,0.15); }
.form-group textarea { resize: vertical; min-height: 60px; }

.mood-checkboxes { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.mood-checkbox-label {
    display: inline-flex; align-items: center; gap: 0.3rem;
    padding: 0.4rem 0.8rem; border-radius: 50px;
    background: var(--bg-secondary); border: 1px solid var(--border-subtle);
    cursor: pointer; font-size: 0.85rem; color: var(--text-secondary);
    transition: var(--transition); user-select: none;
}
.mood-checkbox-label:hover { border-color: var(--accent-2); color: var(--text-primary); }
.mood-checkbox-label.checked { background: rgba(168,85,247,0.15); border-color: var(--accent-2); color: var(--accent-2); }
.mood-checkbox-label input { display: none; }

.btn-upload {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.7rem 2rem; background: var(--accent-gradient); color: #fff;
    border: none; border-radius: var(--radius-sm);
    font-size: 1rem; font-weight: 600; font-family: inherit;
    cursor: pointer; transition: var(--transition);
}
.btn-upload:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-upload:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.upload-status { margin-top: 0.8rem; font-size: 0.85rem; min-height: 1.2rem; }
.upload-status.success { color: var(--accent-3); }
.upload-status.error { color: var(--accent-1); }

.admin-track-list { display: flex; flex-direction: column; gap: 0.5rem; }
.admin-track-item {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.8rem 1rem; background: var(--bg-card);
    border-radius: var(--radius-sm); border: 1px solid var(--border-subtle);
}
.admin-track-info { flex: 1; min-width: 0; }
.admin-track-title { font-weight: 600; font-size: 0.95rem; }
.admin-track-meta { font-size: 0.8rem; color: var(--text-dim); margin-top: 2px; }
.admin-track-actions { display: flex; gap: 0.4rem; }
.admin-btn {
    padding: 0.4rem 0.8rem; border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle); background: var(--bg-secondary);
    color: var(--text-secondary); cursor: pointer;
    font-size: 0.8rem; font-family: inherit; transition: var(--transition);
}
.admin-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.admin-btn.danger:hover { background: rgba(255,107,74,0.15); border-color: var(--accent-1); color: var(--accent-1); }

.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.7);
    display: flex; align-items: center; justify-content: center;
    z-index: 200; backdrop-filter: blur(4px); animation: modal-fade-in 0.2s ease;
}
@keyframes modal-fade-in { from { opacity: 0; } to { opacity: 1; } }
.modal {
    background: var(--bg-card); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg); padding: 2rem 2rem 1.5rem;
    width: 90%; max-width: 500px; max-height: 90vh; overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    animation: modal-slide-in 0.3s ease;
}
@keyframes modal-slide-in { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal h3 { margin-bottom: 1.2rem; font-size: 1.1rem; }
.modal-actions { display: flex; gap: 0.8rem; margin-top: 1.5rem; justify-content: flex-end; }

/* ---- FOOTER ---- */
.site-footer {
    text-align: center; padding: 2rem 1rem 1rem;
    color: var(--text-dim); font-size: 0.75rem;
    border-top: 1px solid var(--border-subtle);
    margin-top: 2rem;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 640px) {
    .site-title { font-size: 1.8rem; }
    .site-header { padding: 2rem 1rem 1rem; }
    .btn-surprise { padding: 0.65rem 1.5rem; font-size: 0.9rem; }
    .collection-bar { flex-direction: column; gap: 0.4rem; align-items: center; }
    .player { grid-template-columns: auto 1fr auto; padding: 0.6rem 0.8rem; }
    .player-volume { display: none; }
    .player-cover { width: 36px; height: 36px; }
    .player-info { grid-column: 2; }
    .player-controls { grid-column: 3; }
    .player-progress { grid-column: 1 / -1; }
    .track-card { padding: 0.7rem 0.8rem; gap: 0.6rem; }
    .track-mood-icon { width: 38px; height: 38px; min-width: 38px; font-size: 1.2rem; }
    .track-cover { width: 38px; height: 38px; min-width: 38px; }
    .track-desc { display: none !important; }
    .ctrl-play { width: 40px; height: 40px; }
    .ctrl-btn { width: 34px; height: 34px; font-size: 1rem; }
}

@media (max-width: 380px) {
    .site-title { font-size: 1.5rem; }
    .mood-btn { padding: 0.35rem 0.6rem; font-size: 0.78rem; }
    .track-moods { display: none; }
}