:root {
            --bg: #070709;
            --primary: #8000ff;
            --primary-light: #b366ff;
            --primary-dark: #4d0099;
            --secondary: #cc00ff;
            --text: #ffffff;
            --text-dim: rgba(255, 255, 255, 0.6);
            --text-muted: #888888;
            --slot-height: 360px;
            --slot-video-width: 498px; /* 16:9 ratio */
            --slot-gap: 1rem;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background: var(--bg);
            color: var(--text);
            overflow-x: hidden;
        }

        /* ==========================================
           NAVIGATION
           ========================================== */
        .nav-desktop {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
            padding: 1.25rem 5vw;
            background: transparent;
            z-index: 1000;
        }

        .nav-desktop a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all 0.3s ease;
            background: rgba(7, 7, 9, 0.9);
            padding: 0.5rem 1rem;
            border-radius: 6px;
        }

        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: var(--primary);
        }

        @media (max-width: 1023px) {
            .nav-desktop { display: none; }
        }

        /* ==========================================
           MOBILE NAV
           ========================================== */
        .nav-mobile {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            display: flex;
            justify-content: space-around;
            padding: 1rem;
            background: rgba(7, 7, 9, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 100;
        }

        .nav-mobile a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.7rem;
            text-align: center;
            transition: color 0.3s;
        }

        .nav-mobile a:hover,
        .nav-mobile a.active {
            color: var(--primary);
        }

        @media (min-width: 1024px) {
            .nav-mobile { display: none; }
        }

        /* ==========================================
           HEADER
           ========================================== */
        .page-header {
            padding: 6rem 5vw 2rem;
            text-align: center;
        }

        .page-label {
            font-family: 'Space Mono', monospace;
            font-size: 0.75rem;
            letter-spacing: 0.3em;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .page-title {
            font-size: clamp(2.5rem, 8vw, 5rem);
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-subtitle {
            font-size: 1rem;
            color: var(--text-dim);
            margin-top: 0.5rem;
            font-weight: 300;
        }

        /* ==========================================
           PROJECT BAND - Each project is a horizontal band
           ========================================== */
        .project-band {
            position: relative;
            margin-bottom: 3rem;
            background: linear-gradient(180deg, rgba(128, 0, 255, 0.02) 0%, transparent 100%);
            border-top: 1px solid rgba(128, 0, 255, 0.15);
        }

        .project-band:last-child {
            margin-bottom: 0;
        }

        .band-header {
            padding: 1.5rem 5vw 1rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .band-number {
            font-family: 'Space Mono', monospace;
            font-size: 0.75rem;
            color: var(--primary);
            background: rgba(128, 0, 255, 0.1);
            padding: 0.25rem 0.75rem;
            border-radius: 100px;
        }

        .band-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 700;
        }

        .band-date {
            font-family: 'Space Mono', monospace;
            font-size: 0.75rem;
            color: var(--text-dim);
            margin-left: auto;
        }

        /* ==========================================
           HORIZONTAL SCROLL TRACK
           ========================================== */
        .band-track-wrapper {
            overflow-x: auto;
            overflow-y: hidden;
            scrollbar-width: thin;
            scrollbar-color: var(--primary-dark) transparent;
            padding-bottom: 1rem;
        }

        .band-track-wrapper::-webkit-scrollbar {
            height: 6px;
        }

        .band-track-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }

        .band-track-wrapper::-webkit-scrollbar-thumb {
            background: var(--primary-dark);
            border-radius: 3px;
        }

        .band-track {
            display: flex;
            gap: var(--slot-gap);
            padding: 0 5vw 1rem;
            width: max-content;
        }

        /* ==========================================
           SLOTS - Same height for video, image, text
           ========================================== */
        .slot {
            flex-shrink: 0;
            height: var(--slot-height);
            background: rgba(128, 0, 255, 0.03);
            border: 1px solid rgba(128, 0, 255, 0.15);
            border-radius: 12px;
            overflow: hidden;
            position: relative;
            transition: all 0.3s ease;
        }

        .slot:hover {
            border-color: rgba(128, 0, 255, 0.4);
            box-shadow: 0 10px 40px rgba(128, 0, 255, 0.15);
        }

        /* Video slot */
        .slot-video {
            width: var(--slot-video-width);
        }

        .slot-video iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
            z-index: 1;
        }

        /* Image slot */
        .slot-image {
            width: 350px;
        }

        .slot-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Text/Info slot */
        .slot-info {
            width: 320px;
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            overflow: hidden;
        }

        .slot-info.wide {
            width: 420px;
        }

        .slot-info.narrow {
            width: 240px;
        }

        .slot-info.extra-wide {
            width: 480px;
        }

        /* Signal/callout cards */
        .slot-signal {
            width: 200px;
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            background: linear-gradient(135deg, rgba(128, 0, 255, 0.15), rgba(204, 0, 255, 0.1));
        }

        .signal-icon {
            font-size: 3rem;
            margin-bottom: 0.75rem;
        }

        .signal-text {
            font-family: 'Space Mono', monospace;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-light);
            line-height: 1.3;
            letter-spacing: 0.05em;
        }

        .signal-subtext {
            font-size: 0.95rem;
            color: var(--text-dim);
            margin-top: 0.5rem;
        }

        /* Wider video slot */
        .slot-video.wide {
            width: 580px;
        }

        .slot-video.narrow {
            width: 380px;
        }

        .slot-info-label {
            font-family: 'Space Mono', monospace;
            font-size: 0.75rem;
            letter-spacing: 0.15em;
            color: var(--primary);
            margin-bottom: 0.5rem;
            text-transform: uppercase;
        }

        .slot-info-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            line-height: 1.25;
        }

        .slot-info-text {
            font-size: 0.9rem;
            color: var(--text-dim);
            line-height: 1.5;
        }

        .slot-info-list {
            list-style: none;
            margin-top: 0.35rem;
        }

        .slot-info-list li {
            font-size: 0.85rem;
            color: var(--text-dim);
            padding: 0.2rem 0;
            border-bottom: 1px solid rgba(128, 0, 255, 0.1);
        }

        .slot-info-list li:last-child {
            border-bottom: none;
        }

        /* Equipment slot */
        .slot-equipment {
            width: 280px;
            padding: 1.25rem;
        }

        .equipment-item {
            margin-bottom: 1rem;
        }

        .equipment-item:last-child {
            margin-bottom: 0;
        }

        .equipment-label {
            font-family: 'Space Mono', monospace;
            font-size: 0.65rem;
            color: var(--primary);
            margin-bottom: 0.25rem;
        }

        .equipment-value {
            font-size: 0.85rem;
            color: var(--text);
        }

        .equipment-detail {
            font-size: 0.75rem;
            color: var(--text-dim);
            margin-top: 0.15rem;
        }

        /* Lyrics slot */
        .slot-lyrics {
            width: 380px;
            padding: 1.25rem;
            overflow-y: auto;
        }

        .lyrics-stanza {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(128, 0, 255, 0.1);
        }

        .lyrics-stanza:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }

        .lyrics-vietnamese {
            font-size: 0.85rem;
            line-height: 1.5;
            margin-bottom: 0.5rem;
            white-space: pre-line;
        }

        .lyrics-english {
            font-size: 0.75rem;
            color: var(--text-dim);
            line-height: 1.4;
            font-style: italic;
            white-space: pre-line;
        }

        /* Tags in slots */
        .slot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            margin-top: auto;
            padding-top: 0.75rem;
        }

        .tag {
            font-family: 'Space Mono', monospace;
            font-size: 0.65rem;
            padding: 0.25rem 0.5rem;
            background: rgba(128, 0, 255, 0.1);
            color: var(--primary-light);
            border-radius: 3px;
        }

        /* Video label overlay */
        .video-label {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 0.5rem 0.75rem;
            background: linear-gradient(transparent, rgba(7, 7, 9, 0.95));
            font-size: 0.85rem;
            color: var(--text);
            pointer-events: none;
            z-index: 2;
        }

        .video-type {
            font-family: 'Space Mono', monospace;
            font-size: 0.7rem;
            color: var(--primary);
            display: block;
            margin-bottom: 0.15rem;
        }

        /* ==========================================
           PRACTICE LOOPS SECTION (for Cò Lả)
           ========================================== */
        .loops-section {
            margin-top: 1rem;
            padding: 1rem 5vw;
            background: rgba(128, 0, 255, 0.02);
        }

        .loops-header {
            font-family: 'Space Mono', monospace;
            font-size: 0.85rem;
            color: var(--primary);
            margin-bottom: 1rem;
            letter-spacing: 0.1em;
        }

        .loops-grid {
            display: grid;
            grid-template-columns: auto repeat(8, 1fr);
            grid-template-rows: auto repeat(3, 1fr);
            gap: 0.35rem;
            align-items: stretch;
            justify-content: start;
            padding-left: calc(320px + 1rem);
            height: var(--slot-height);
            max-width: calc(100vw - 10vw);
        }

        .loop-row-label {
            font-family: 'Space Mono', monospace;
            font-size: 0.75rem;
            color: var(--primary);
            text-align: right;
            padding-right: 0.75rem;
            white-space: nowrap;
        }

        .loop-col-labels {
            display: contents;
        }

        .loop-col-label {
            font-family: 'Space Mono', monospace;
            font-size: 0.75rem;
            color: var(--text-dim);
            text-align: center;
            padding-bottom: 0.5rem;
        }

        .loop-cell {
            background: rgba(128, 0, 255, 0.03);
            border: 1px solid rgba(128, 0, 255, 0.15);
            border-radius: 8px;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

        .loop-cell iframe {
            width: 100%;
            height: 100%;
            border: none;
        }

        .loop-phrase-label {
            font-family: 'Space Mono', monospace;
            font-size: 0.6rem;
            color: var(--text-dim);
            text-align: center;
            padding: 0.25rem;
        }

        /* ==========================================
           FOOTER
           ========================================== */
        .site-footer {
            margin-top: 4rem;
            padding: 2rem 5vw;
            border-top: 1px solid rgba(128, 0, 255, 0.1);
            text-align: center;
        }

        .footer-contact {
            margin: 1rem auto;
            max-width: 400px;
        }

        .footer-contact-btn {
            display: inline-block;
            padding: 0.75rem 1.5rem;
            background: transparent;
            border: 1px solid var(--primary);
            border-radius: 8px;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.85rem;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .footer-contact-btn:hover {
            background: var(--primary);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(128, 0, 255, 0.3);
        }

        .footer-social {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 1.5rem 0;
        }

        .footer-social a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.3s ease;
        }

        .footer-social a:hover {
            color: var(--primary);
        }

        .social-icon {
            width: 20px;
            height: 20px;
            opacity: 0.5;
            transition: opacity 0.3s ease;
        }

        .footer-social a:hover .social-icon {
            opacity: 1;
        }

        .social-disabled {
            color: var(--text-muted);
            opacity: 0.3;
            cursor: default;
        }

        .social-disabled .social-icon {
            opacity: 0.3;
        }

        .footer-copyright {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 1rem;
        }

        .footer-credit {
            font-size: 0.65rem;
            color: #555;
            margin-top: 0.5rem;
            letter-spacing: 0.02em;
        }

        /* ==========================================
           RESPONSIVE
           ========================================== */
        @media (max-width: 1200px) {
            .loops-grid {
                grid-template-columns: auto repeat(8, minmax(70px, 100px));
                gap: 0.25rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --slot-height: 200px;
                --slot-video-width: 320px;
            }

            .nav-desktop {
                flex-wrap: wrap;
            }

            .band-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }

            .band-date {
                margin-left: 0;
            }

            .loops-section {
                overflow-x: auto;
            }

            .loops-grid {
                grid-template-columns: auto repeat(8, 80px);
                min-width: max-content;
                /* Align with info slot (260px) + gap */
                padding-left: calc(260px + 1rem);
            }

            .slot-info, .slot-lyrics {
                width: 260px;
            }

            .slot-image img {
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
        }

        @media (max-width: 480px) {
            :root {
                --slot-height: 180px;
                --slot-video-width: 280px;
            }

            .page-header {
                padding: 5rem 4vw 1.5rem;
            }

            .page-title {
                font-size: 2.5rem;
            }

            .band-header {
                padding: 1rem 4vw;
            }

            .band-title {
                font-size: 1rem;
            }

            .slot-info {
                width: 240px;
                padding: 1rem;
            }

            .loops-grid {
                grid-template-columns: auto repeat(8, 70px);
                /* Align with info slot (240px) + gap */
                padding-left: calc(240px + 1rem);
            }

            .loop-row-label {
                font-size: 0.55rem;
            }

            .loop-col-label {
                font-size: 0.55rem;
            }
        }

        /* Mobile footer padding for fixed bottom nav */
        @media (max-width: 1023px) {
            .site-footer {
                padding-bottom: 5rem;
            }
        }