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

body {
    font-family: 'Inter', sans-serif;
    background: #0a0a0f;
    color: #e0e0e0;
    height: 100vh;
    display: flex;
    overflow: hidden;
}

::-webkit-scrollbar {
    width: 4px;
}
::-webkit-scrollbar-track {
    background: #0a0a0f;
}
::-webkit-scrollbar-thumb {
    background: #2a2a3a;
    border-radius: 4px;
}

/* ===== SPLASH SCREEN ===== */
#splash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a0f;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#splash.hidden {
    opacity: 0;
    visibility: hidden;
}

.splash-content {
    text-align: center;
    animation: fadeInUp 1s ease;
}

.splash-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: 8px;
    color: #f0f0f0;
    text-shadow: 0 0 40px rgba(90, 90, 138, 0.3);
}

.splash-content p {
    font-size: 0.8rem;
    color: #5a5a6a;
    letter-spacing: 4px;
    margin-top: 8px;
}

.splash-content .loader {
    margin: 30px auto 0;
    width: 32px;
    height: 32px;
    border: 3px solid #1a1a2a;
    border-top: 3px solid #7a7aaa;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 300px;
    min-width: 300px;
    background: #0f0f18;
    border-right: 1px solid #1a1a2a;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    transition: width 0.2s;
}

.sidebar-header {
    padding: 18px 20px;
    border-bottom: 1px solid #1a1a2a;
    flex-shrink: 0;
}

.sidebar-header h1 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #f0f0f0;
}

.sidebar-header h1 span {
    color: #6a6a8a;
    font-weight: 300;
}

.sidebar-header .sub {
    font-size: 0.65rem;
    color: #4a4a5a;
    letter-spacing: 1px;
    margin-top: 2px;
}

.sidebar-search {
    padding: 12px 20px;
    flex-shrink: 0;
}

.sidebar-search input {
    width: 100%;
    background: #1a1a2a;
    border: 1px solid #2a2a3a;
    padding: 8px 14px;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 0.8rem;
    outline: none;
    transition: 0.2s;
    font-family: 'Inter', sans-serif;
}

.sidebar-search input:focus {
    border-color: #5a5a8a;
    background: #1a1a2e;
}
.sidebar-search input::placeholder {
    color: #4a4a5a;
}

.sidebar-tracks {
    flex: 1;
    overflow-y: auto;
    padding: 4px 12px 20px;
}

.track-item {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.15s;
    gap: 10px;
    border-left: 2px solid transparent;
}

.track-item:hover {
    background: #1a1a2a;
}
.track-item.active {
    background: #1a1a2e;
    border-left-color: #7a7aaa;
}

.track-item .tnum {
    font-size: 0.6rem;
    color: #4a4a5a;
    min-width: 24px;
    font-weight: 600;
}

.track-item .tinfo {
    flex: 1;
    overflow: hidden;
}

.track-item .tinfo .tname {
    font-size: 0.78rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-item .tinfo .tmeta {
    font-size: 0.6rem;
    color: #5a5a6a;
}

.track-item .tbadge {
    font-size: 0.5rem;
    background: #1a1a2a;
    padding: 2px 8px;
    border-radius: 10px;
    color: #6a6a8a;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.track-item .tplay-indicator {
    font-size: 0.7rem;
    color: #6a6a8a;
    width: 18px;
    text-align: center;
}

.track-item .cart-add {
    background: none;
    border: 1px solid #2a2a3a;
    color: #6a6a8a;
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 0.6rem;
    cursor: pointer;
    transition: 0.15s;
    font-family: 'Inter', sans-serif;
    flex-shrink: 0;
    line-height: 1.8;
}

.track-item .cart-add:hover {
    background: #3a3a5a;
    color: #f0f0f0;
    border-color: #5a5a8a;
}

.track-item .cart-add.in-cart {
    background: #2a4a3a;
    border-color: #4a7a5a;
    color: #8aca9a;
}

.track-item.active .tplay-indicator {
    color: #8a8aaa;
}

/* ===== MAIN ===== */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background: #0a0a0f;
}

.topbar {
    padding: 14px 28px;
    border-bottom: 1px solid #1a1a2a;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.topbar .collection-badge {
    font-size: 0.7rem;
    color: #5a5a6a;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.topbar .track-counter {
    font-size: 0.7rem;
    color: #4a4a5a;
}

.topbar .cart-btn {
    background: none;
    border: 1px solid #2a2a3a;
    color: #c0c0d0;
    padding: 4px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    transition: 0.2s;
}

.topbar .cart-btn:hover {
    border-color: #5a5a8a;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: #c0c0d0;
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0 8px;
}

/* ===== VISOR ===== */
.visor {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 28px;
    overflow-y: auto;
    gap: 18px;
}

.visor .top-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    align-items: flex-start;
}

.visor .artwork {
    width: 160px;
    height: 160px;
    border-radius: 12px;
    background: #1a1a2a;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #3a3a4a;
    border: 1px solid #1a1a2a;
    overflow: hidden;
}

.visor .artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.visor .artwork .fallback {
    font-size: 3rem;
    opacity: 0.3;
    user-select: none;
}

.visor .track-details {
    flex: 1;
    min-width: 200px;
}

.visor .track-details .title {
    font-size: 1.6rem;
    font-weight: 700;
    color: #f0f0f0;
    margin-bottom: 2px;
}

.visor .track-details .subtitle {
    font-size: 0.85rem;
    color: #7a7a8a;
    margin-bottom: 10px;
}

.visor .track-details .spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 6px 18px;
    margin-top: 6px;
}

.visor .track-details .spec-grid .spec-item {
    font-size: 0.7rem;
    color: #8a8a9a;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #1a1a2a;
    padding: 4px 0;
}

.visor .track-details .spec-grid .spec-item .label {
    color: #5a5a6a;
}
.visor .track-details .spec-grid .spec-item .value {
    color: #d0d0e0;
    font-weight: 500;
}

/* ===== SPECTROGRAM ===== */
.spectrogram-wrap {
    width: 100%;
    background: #0f0f18;
    border-radius: 12px;
    border: 1px solid #1a1a2a;
    overflow: hidden;
    margin-top: 4px;
}

.spectrogram-wrap .header {
    padding: 8px 16px;
    font-size: 0.6rem;
    color: #4a4a5a;
    letter-spacing: 1px;
    border-bottom: 1px solid #1a1a2a;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.spectrogram-wrap .header .freq-label {
    display: flex;
    gap: 12px;
}

.spectrogram-wrap .spectrogram-image {
    width: 100%;
    max-height: 180px;
    object-fit: contain;
    background: #0a0a0f;
    display: block;
}

.spectrogram-wrap .no-spec {
    padding: 30px 20px;
    text-align: center;
    color: #3a3a4a;
    font-size: 0.8rem;
}

/* ===== VIDEO ZONE ===== */
.video-zone {
    width: 100%;
    background: #0f0f18;
    border-radius: 12px;
    border: 1px solid #1a1a2a;
    overflow: hidden;
    margin-top: 4px;
    transition: border-color 0.3s;
}

.video-zone .header {
    padding: 8px 16px;
    font-size: 0.6rem;
    color: #4a4a5a;
    letter-spacing: 1px;
    border-bottom: 1px solid #1a1a2a;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.video-zone .drop-area {
    padding: 20px;
    text-align: center;
    color: #4a4a5a;
    font-size: 0.8rem;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    transition: 0.2s;
    border: 2px dashed transparent;
    border-radius: 8px;
    margin: 8px;
}

.video-zone .drop-area.dragover {
    border-color: #5a5a8a;
    background: #1a1a2e;
}

.video-zone .drop-area .icon {
    font-size: 2rem;
    opacity: 0.4;
}

.video-zone .drop-area .hint {
    font-size: 0.7rem;
    color: #3a3a4a;
}

.video-zone .drop-area input[type="file"] {
    display: none;
}

.video-zone .video-wrapper {
    position: relative;
    width: 100%;
    background: #0a0a0f;
    display: none;
    aspect-ratio: 16/9;
    max-height: 320px;
}

.video-zone .video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.video-zone .video-wrapper .overlay {
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-size: 0.6rem;
    color: #4a4a5a;
    background: rgba(0,0,0,0.6);
    padding: 4px 10px;
    border-radius: 4px;
    pointer-events: none;
}

.video-zone .video-wrapper .remove-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0,0,0,0.7);
    border: none;
    color: #c0c0d0;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.65rem;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    transition: 0.2s;
}

.video-zone .video-wrapper .remove-btn:hover {
    background: #ff3355;
    color: #fff;
}

/* ===== PLAYER CONTROLS ===== */
.player-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
    flex-wrap: wrap;
}

.player-controls button {
    background: none;
    border: 1px solid #2a2a3a;
    color: #c0c0d0;
    padding: 6px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: 0.15s;
    font-family: 'Inter', sans-serif;
    min-width: 44px;
}

.player-controls button:hover {
    background: #1a1a2a;
    border-color: #4a4a6a;
}

.player-controls button.primary {
    background: #3a3a5a;
    border-color: #4a4a6a;
    color: #f0f0f0;
    padding: 6px 28px;
}

.player-controls button.primary:hover {
    background: #5a5a8a;
}

.player-controls .time-display {
    font-size: 0.75rem;
    color: #6a6a7a;
    font-variant-numeric: tabular-nums;
    min-width: 100px;
}

.player-controls .progress-wrap {
    flex: 1;
    min-width: 100px;
    height: 4px;
    background: #1a1a2a;
    border-radius: 4px;
    cursor: pointer;
    position: relative;
}

.player-controls .progress-wrap .fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #5a5a8a, #8a8aaa);
    border-radius: 4px;
    transition: width 0.05s linear;
}

/* ===== CART MODAL ===== */
#cartModal {
    display: none;
}

#cartModal.show {
    display: flex;
}

#cartItems .cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #1a1a2a;
    color: #c0c0d0;
}

#cartItems .cart-item .remove-item {
    background: none;
    border: none;
    color: #ff3355;
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0 4px;
    transition: 0.2s;
}

#cartItems .cart-item .remove-item:hover {
    color: #ff6688;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar {
        width: 220px;
        min-width: 220px;
    }
    .visor .top-row {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .visor .artwork {
        width: 120px;
        height: 120px;
    }
    .visor .track-details .spec-grid {
        grid-template-columns: 1fr;
    }
    .topbar {
        padding: 10px 16px;
        flex-wrap: wrap;
        gap: 4px;
    }
    .visor {
        padding: 12px 16px;
    }
    .player-controls {
        justify-content: center;
    }
    .video-zone .video-wrapper {
        max-height: 200px;
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 0;
        min-width: 0;
        border-right: none;
        overflow: hidden;
    }
    .sidebar.open {
        width: 280px;
        min-width: 280px;
        position: fixed;
        z-index: 100;
        background: #0f0f18;
        border-right: 1px solid #1a1a2a;
        height: 100vh;
    }
    .mobile-toggle {
        display: block !important;
    }
}