:root {
        --bg: #050508;
        --surface: #0c0c14;
        --surface2: #111120;
        --blue: #3b6ef8;
        --blue-bright: #5a8aff;
        --blue-glow: rgba(59, 110, 248, 0.18);
        --white: #f0f0f8;
        --muted: #6b6b8a;
        --border: rgba(59, 110, 248, 0.15);
        --text: #c8c8e0;
    }

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

    html {
        scroll-behavior: smooth;
        overflow-x: hidden;
        width: 100%;
    }

    body {
        background: var(--bg);
        color: var(--white);
        font-family: 'DM Sans', sans-serif;
        min-height: 100vh;
        overflow-x: hidden;
        width: 100%;
        position: relative;
    }

    /* ─── NOISE OVERLAY ─── */
    body::before {
        content: '';
        position: fixed;
        inset: 0;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
        pointer-events: none;
        z-index: 0;
        opacity: 0.5;
    }

    /* ─── NAV ─── */
    nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        z-index: 100;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 48px;
        background: rgba(5, 5, 8, 0.7);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        box-sizing: border-box;
    }

    .nav-logo {
        font-family: 'Syne', sans-serif;
        font-size: 1.2rem;
        font-weight: 700;
        letter-spacing: -0.02em;
    }

    .nav-logo span {
        color: var(--blue-bright);
    }

    .nav-btn {
        background: var(--blue);
        color: #fff;
        border: none;
        padding: 10px 26px;
        border-radius: 8px;
        font-family: 'DM Sans', sans-serif;
        font-size: 0.9rem;
        font-weight: 500;
        cursor: pointer;
        transition: background 0.2s, transform 0.15s;
        letter-spacing: 0.01em;
    }

    .nav-btn a {
        color: inherit;
        text-decoration: none;
    }

    .nav-btn:hover {
        background: var(--blue-bright);
        transform: translateY(-1px);
    }

    /* ─── HERO HEADER ─── */
    .hero {
        padding: clamp(100px, 14vw, 160px) clamp(16px, 5vw, 48px) clamp(40px, 6vw, 80px);
        position: relative;
        z-index: 1;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.75rem;
        font-weight: 500;
        letter-spacing: 0.15em;
        text-transform: uppercase;
        color: var(--blue-bright);
        background: var(--blue-glow);
        border: 1px solid var(--border);
        padding: 6px 16px;
        border-radius: 100px;
        margin-bottom: 28px;
        animation: fadeUp 0.6s ease both;
    }

    .hero-label::before {
        content: '';
        width: 6px;
        height: 6px;
        background: var(--blue-bright);
        border-radius: 50%;
        box-shadow: 0 0 8px var(--blue-bright);
    }

    .hero h1 {
        font-family: 'Syne', sans-serif;
        font-size: clamp(1.8rem, 4vw, 3rem);
        font-weight: 800;
        line-height: 1.05;
        letter-spacing: -0.04em;
        animation: fadeUp 0.6s 0.1s ease both;
    }

    .hero h1 em {
        font-style: normal;
        color: var(--blue-bright);
        position: relative;
    }

    .hero h1 em::after {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
        bottom: -4px;
        height: 3px;
        background: var(--blue-bright);
        border-radius: 2px;
    }

    .hero-sub {
        margin-top: 20px;
        color: var(--muted);
        font-size: 1rem;
        font-weight: 300;
        max-width: 420px;
        margin-left: auto;
        margin-right: auto;
        line-height: 1.7;
        animation: fadeUp 0.6s 0.2s ease both;
    }

    /* ambient glow behind hero */
    .hero::after {
        content: '';
        position: absolute;
        top: 60px;
        left: 50%;
        transform: translateX(-50%);
        width: 600px;
        height: 300px;
        background: radial-gradient(ellipse, rgba(59, 110, 248, 0.12) 0%, transparent 70%);
        pointer-events: none;
        z-index: -1;
    }

    /* ─── STATS BAR ─── */
    .stats {
        display: flex;
        justify-content: center;
        gap: 0;
        max-width: 640px;
        width: calc(100% - 48px);
        margin: 0 auto 72px;
        border: 1px solid var(--border);
        border-radius: 16px;
        overflow: hidden;
        background: var(--surface);
        animation: fadeUp 0.6s 0.3s ease both;
        position: relative;
        z-index: 1;
    }

    .stat {
        flex: 1;
        min-width: 0;
        padding: clamp(12px, 2vw, 20px) clamp(6px, 1.5vw, 16px);
        text-align: center;
        border-right: 1px solid var(--border);
    }

    .stat:last-child {
        border-right: none;
    }

    .stat-num {
        font-family: 'Syne', sans-serif;
        font-size: clamp(1rem, 3.5vw, 1.8rem);
        font-weight: 800;
        color: var(--blue-bright);
        line-height: 1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .stat-lbl {
        font-size: clamp(0.55rem, 1.4vw, 0.72rem);
        color: var(--muted);
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-top: 4px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* ─── GRID ─── */
    .grid-wrap {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 clamp(16px, 4vw, 48px) 120px;
        position: relative;
        z-index: 1;
    }

    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
        gap: 24px;
    }

    /* ─── CARD ─── */
    .card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 20px;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        transition: transform 0.3s cubic-bezier(.22, 1, .36, 1), box-shadow 0.3s, border-color 0.3s;
        animation: fadeUp 0.6s ease both;
        position: relative;
    }

    .card:hover {
        transform: translateY(-6px);
        border-color: rgba(59, 110, 248, 0.5);
        box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(59, 110, 248, 0.2), 0 0 40px rgba(59, 110, 248, 0.08);
    }

    /* stagger */
    .card:nth-child(1) {
        animation-delay: 0.05s
    }

    .card:nth-child(2) {
        animation-delay: 0.12s
    }

    .card:nth-child(3) {
        animation-delay: 0.19s
    }

    .card:nth-child(4) {
        animation-delay: 0.26s
    }

    .card:nth-child(5) {
        animation-delay: 0.33s
    }

    .card:nth-child(6) {
        animation-delay: 0.40s
    }

    .card:nth-child(7) {
        animation-delay: 0.47s
    }

    .card:nth-child(8) {
        animation-delay: 0.54s
    }

    .card-thumb {
        width: 100%;
        aspect-ratio: 16/9;
        object-fit: cover;
        display: block;
        background: var(--surface2);
        position: relative;
    }

    .card-thumb-placeholder {
        width: 100%;
        aspect-ratio: 16/9;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 3rem;
        background: linear-gradient(135deg, var(--surface2) 0%, #0d0d22 100%);
    }

    .card-body {
        padding: 24px;
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .card-top {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 12px;
    }

    .card-title {
        font-family: 'Syne', sans-serif;
        font-size: 1.15rem;
        font-weight: 700;
        line-height: 1.3;
        letter-spacing: -0.02em;
    }

    .badge-year {
        flex-shrink: 0;
        font-size: 0.7rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        color: var(--blue-bright);
        background: var(--blue-glow);
        border: 1px solid var(--border);
        padding: 3px 10px;
        border-radius: 100px;
        white-space: nowrap;
    }

    .card-meta {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }

    .meta-pill {
        display: flex;
        align-items: center;
        gap: 5px;
        font-size: 0.75rem;
        color: var(--muted);
        background: var(--surface2);
        border: 1px solid rgba(255, 255, 255, 0.05);
        padding: 4px 12px;
        border-radius: 100px;
    }

    .meta-pill svg {
        opacity: 0.7;
    }

    .divider {
        height: 1px;
        background: var(--border);
        margin: 0;
    }

    .card-desc {
        font-size: 0.83rem;
        line-height: 1.7;
        color: var(--text);
        font-weight: 300;
        font-style: italic;
        flex: 1;
    }

    .card-footer {
        margin-top: auto;
    }

    .cert-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        padding: 12px;
        background: transparent;
        border: 1px solid var(--border);
        border-radius: 10px;
        color: var(--blue-bright);
        font-family: 'DM Sans', sans-serif;
        font-size: 0.85rem;
        font-weight: 500;
        cursor: pointer;
        transition: background 0.2s, border-color 0.2s, transform 0.15s;
        letter-spacing: 0.02em;
        text-decoration: none;
    }

    .cert-btn:hover {
        background: var(--blue-glow);
        border-color: rgba(59, 110, 248, 0.5);
        transform: translateY(-1px);
    }

    .cert-btn svg {
        transition: transform 0.2s;
    }

    .cert-btn:hover svg {
        transform: translateX(3px);
    }

    /* ─── ANIMATIONS ─── */
    @keyframes fadeUp {
        from {
            opacity: 0;
            transform: translateY(24px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* ─── FOOTER ─── */
    footer {
        border-top: 1px solid var(--border);
        text-align: center;
        padding: 32px;
        color: var(--muted);
        font-size: 0.8rem;
        position: relative;
        z-index: 1;
    }

    footer span {
        color: var(--blue-bright);
    }

    /* ─── RESPONSIVE ─── */
    @media (max-width: 768px) {
        nav {
            padding: 14px 20px;
        }

        .hero-sub {
            max-width: 100%;
            padding: 0 8px;
        }

        .stats {
            width: calc(100% - 32px);
        }

        .grid-wrap {
            padding: 0 16px 80px;
        }

        .grid {
            gap: 16px;
        }
    }

    @media (max-width: 480px) {
        nav {
            padding: 12px 16px;
        }

        .nav-logo {
            font-size: 1rem;
        }

        .nav-btn {
            padding: 8px 16px;
            font-size: 0.82rem;
        }

        .stats {
            width: calc(100% - 24px);
            border-radius: 12px;
        }

        .hero h1 {
            letter-spacing: -0.03em;
        }

        .hero-label {
            font-size: 0.68rem;
            padding: 5px 12px;
        }

        .card-body {
            padding: 18px;
            gap: 12px;
        }

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

        .cert-btn {
            font-size: 0.8rem;
            padding: 10px;
        }

        footer {
            padding: 24px 16px;
            font-size: 0.75rem;
        }
    }

    @media (max-width: 360px) {
        .stats {
            flex-wrap: wrap;
        }

        .stat {
            flex: 1 1 45%;
            border-right: none;
            border-bottom: 1px solid var(--border);
        }

        .stat:nth-child(odd) {
            border-right: 1px solid var(--border);
        }

        .stat:nth-last-child(-n+2) {
            border-bottom: none;
        }
    }