:root {
        --bg: #0f172a;
        --surface: rgba(255, 255, 255, 0.03);
        --surface-2: rgba(255, 255, 255, 0.05);
        --border: rgba(56, 189, 248, 0.1);
        --border-bright: rgba(56, 189, 248, 0.2);
        --ink: #f8fafc;
        --ink-muted: #94a3b8;
        --ink-dim: #64748b;
        --accent: #38bdf8;
        --accent-dim: rgba(56, 189, 248, 0.1);
        --accent-mid: rgba(56, 189, 248, 0.2);
        --warn: #fbbf24;
        --warn-dim: rgba(251, 191, 36, 0.12);
        --red: #f87171;
        --red-dim: rgba(248, 113, 113, 0.10);
        --grid-line: rgba(56, 189, 248, 0.1);
        --mono: 'Source Code Pro', monospace;
        --sans: 'Inter', sans-serif;
        --display: 'Source Code Pro', sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        background: var(--bg);
        color: var(--ink);
        font-family: var(--sans);
        font-size: 15px;
        line-height: 1.6;
        overflow-x: hidden;
    }

    /* Grid background */
    body::before {
        content: '';
        position: fixed;
        inset: 0;
        background-image:
            linear-gradient(var(--grid-line) 1px, transparent 1px),
            linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
        background-size: 40px 40px;
        pointer-events: none;
        z-index: 0;
        /* opacity: 0.4; */
    }

    * {
        position: relative;
        z-index: 1;
    }

    /* NAV */
    nav {
        border-bottom: 1px solid var(--border);
        padding: 0 40px;
        height: 56px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        background: rgba(13, 15, 14, 0.95);
        backdrop-filter: blur(8px);
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .nav-logo {
        font-family: var(--mono);
        font-size: 13px;
        color: var(--accent);
        letter-spacing: 0.08em;
        text-decoration: none;
    }

    .nav-tag {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--ink-muted);
        letter-spacing: 0.05em;
    }

    .nav-cta {
        font-family: var(--mono);
        font-size: 11px;
        font-weight: 600;
        color: var(--bg);
        background: var(--accent);
        padding: 8px 18px;
        text-decoration: none;
        letter-spacing: 0.08em;
        transition: opacity 0.2s;
    }

    .nav-cta:hover {
        opacity: 0.85;
    }

    /* HERO */
    .hero {
        padding: 100px 40px 80px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .hero-eyebrow {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--accent);
        letter-spacing: 0.15em;
        text-transform: uppercase;
        margin-bottom: 24px;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .hero-eyebrow::before {
        content: '';
        width: 32px;
        height: 1px;
        background: var(--accent);
    }

    .hero-headline {
        font-family: var(--display);
        font-size: clamp(72px, 10vw, 140px);
        line-height: 0.92;
        letter-spacing: 0.01em;
        color: var(--ink);
        margin-bottom: 32px;
    }

    .hero-headline .accent-line {
        color: var(--accent);
        display: block;
    }

    .hero-sub {
        font-family: var(--sans);
        font-size: 18px;
        font-weight: 300;
        color: var(--ink-muted);
        max-width: 560px;
        line-height: 1.7;
        margin-bottom: 48px;
    }

    .hero-sub strong {
        color: var(--ink);
        font-weight: 500;
    }

    .hero-data-strip {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        border: 1px solid var(--border);
        max-width: 640px;
    }

    .hero-stat {
        padding: 20px 24px;
        border-right: 1px solid var(--border);
    }

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

    .hero-stat-val {
        font-family: var(--display);
        font-size: 40px;
        color: var(--accent);
        line-height: 1;
        margin-bottom: 4px;
    }

    .hero-stat-label {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-muted);
        letter-spacing: 0.08em;
        text-transform: uppercase;
    }

    /* SECTION HEADERS */
    .section-header {
        display: flex;
        align-items: baseline;
        gap: 16px;
        margin-bottom: 48px;
        padding-bottom: 16px;
        border-bottom: 1px solid var(--border);
    }

    .section-tag {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.12em;
        text-transform: uppercase;
        white-space: nowrap;
    }

    .section-title {
        font-family: var(--display);
        font-size: clamp(36px, 5vw, 64px);
        letter-spacing: 0.02em;
        color: var(--ink);
        line-height: 1;
    }

    /* CONTAINER */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 80px 40px;
    }

    /* PROBLEM SECTION */
    .problem-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1px;
        background: var(--border);
        border: 1px solid var(--border);
        margin-bottom: 48px;
    }

    .problem-cell {
        background: var(--surface);
        padding: 32px;
    }

    .problem-cell.full-width {
        grid-column: span 2;
    }

    .cell-label {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.12em;
        text-transform: uppercase;
        margin-bottom: 12px;
    }

    .problem-cell h3 {
        font-family: var(--mono);
        font-size: 15px;
        font-weight: 500;
        color: var(--warn);
        margin-bottom: 12px;
    }

    .problem-cell p {
        font-size: 14px;
        color: var(--ink-muted);
        line-height: 1.7;
    }

    .crack-stat {
        font-family: var(--display);
        font-size: 56px;
        color: var(--red);
        line-height: 1;
        margin-bottom: 8px;
    }

    .crack-desc {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--ink-muted);
    }

    .tax-callout {
        background: var(--red-dim);
        border-left: 3px solid var(--red);
        padding: 24px 28px;
        margin-top: 0;
    }

    .tax-callout p {
        font-family: var(--mono);
        font-size: 14px;
        color: var(--ink);
        line-height: 1.6;
    }

    .tax-callout strong {
        color: var(--red);
        font-weight: 600;
    }

    /* FAULT LIST */
    .fault-list {
        display: flex;
        flex-direction: column;
        gap: 0;
    }

    .fault-item {
        display: grid;
        grid-template-columns: 32px 1fr;
        gap: 12px;
        align-items: start;
        padding: 14px 0;
        border-bottom: 1px solid var(--border);
    }

    .fault-index {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        padding-top: 3px;
    }

    .fault-text {
        font-size: 14px;
        color: var(--ink-muted);
    }

    .fault-text strong {
        color: var(--ink);
        font-weight: 500;
    }

    /* SOLUTION SECTION */
    .solution-intro {
        display: grid;
        grid-template-columns: 1fr 420px;
        gap: 60px;
        align-items: start;
        margin-bottom: 60px;
    }

    .solution-intro-text h3 {
        font-family: var(--display);
        font-size: 42px;
        color: var(--accent);
        margin-bottom: 20px;
        line-height: 1;
    }

    .solution-intro-text p {
        font-size: 15px;
        color: var(--ink-muted);
        line-height: 1.75;
        margin-bottom: 16px;
    }

    .solution-intro-text p strong {
        color: var(--ink);
        font-weight: 500;
    }

    /* Pipeline diagram */
    .pipeline-diagram {
        border: 1px solid var(--border);
        background: var(--surface);
        padding: 24px;
    }

    .pipeline-header {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.12em;
        text-transform: uppercase;
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border);
    }

    .pipeline-step {
        display: flex;
        align-items: center;
        gap: 0;
        margin-bottom: 8px;
    }

    .pipeline-node {
        background: var(--surface-2);
        border: 1px solid var(--border);
        padding: 10px 14px;
        flex: 1;
    }

    .pipeline-node-label {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.08em;
        text-transform: uppercase;
        margin-bottom: 2px;
    }

    .pipeline-node-val {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--ink);
    }

    .pipeline-node.active {
        border-color: var(--accent);
        background: var(--accent-dim);
    }

    .pipeline-node.active .pipeline-node-val {
        color: var(--accent);
    }

    .pipeline-arrow {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--accent);
        padding: 0 8px;
        flex-shrink: 0;
    }

    .pipeline-status {
        margin-top: 16px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .status-dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--accent);
        box-shadow: 0 0 8px var(--accent);
        animation: pulse 2s infinite;
    }

    @keyframes pulse {

        0%,
        100% {
            opacity: 1;
        }

        50% {
            opacity: 0.4;
        }
    }

    .status-text {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--accent);
        letter-spacing: 0.06em;
    }

    /* Tech specs grid */
    .tech-specs {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1px;
        background: var(--border);
        border: 1px solid var(--border);
        margin-top: 40px;
    }

    .spec-cell {
        background: var(--surface);
        padding: 24px;
    }

    .spec-cell-label {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.12em;
        text-transform: uppercase;
        margin-bottom: 8px;
    }

    .spec-cell-val {
        font-family: var(--mono);
        font-size: 14px;
        color: var(--accent);
        margin-bottom: 6px;
        font-weight: 500;
    }

    .spec-cell-desc {
        font-size: 12px;
        color: var(--ink-muted);
        line-height: 1.5;
    }

    /* PACKAGES */
    .table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        width: 100%;
    }

    .packages-table {
        border: 1px solid var(--border);
        width: 100%;
        border-collapse: collapse;
        font-family: var(--mono);
    }

    .packages-thead th {
        background: var(--surface-2);
        padding: 16px 20px;
        text-align: left;
        font-size: 10px;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--ink-dim);
        border-bottom: 1px solid var(--border);
        border-right: 1px solid var(--border);
        white-space: nowrap;
    }

    .packages-thead th:last-child {
        border-right: none;
    }

    .pkg-row {
        border-bottom: 1px solid var(--border);
        vertical-align: top;
    }

    .pkg-row:last-child {
        border-bottom: none;
    }

    .pkg-cell {
        padding: 24px 20px;
        border-right: 1px solid var(--border);
        vertical-align: top;
    }

    .pkg-cell:last-child {
        border-right: none;
    }

    .pkg-id {
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.1em;
        display: block;
        margin-bottom: 6px;
    }

    .pkg-name {
        font-size: 16px;
        font-weight: 600;
        color: var(--ink);
        display: block;
        margin-bottom: 4px;
    }

    .pkg-subtitle {
        font-size: 10px;
        color: var(--ink-muted);
        font-family: var(--sans);
        letter-spacing: 0.04em;
    }

    .pkg-deliverable {
        font-size: 12px;
        color: var(--ink-muted);
        font-family: var(--sans);
        line-height: 1.6;
    }

    .pkg-deliverable ul {
        list-style: none;
        padding: 0;
    }

    .pkg-deliverable li {
        padding: 4px 0;
        display: flex;
        align-items: baseline;
        gap: 8px;
    }

    .pkg-deliverable li::before {
        content: '→';
        color: var(--accent);
        font-size: 11px;
        flex-shrink: 0;
    }

    .pkg-scope {
        font-size: 12px;
        color: var(--ink-muted);
        font-family: var(--sans);
    }

    .pkg-outcome {
        font-size: 12px;
        color: var(--ink);
        font-family: var(--sans);
        line-height: 1.6;
        font-weight: 500;
    }

    .badge-tier {
        display: inline-block;
        font-size: 10px;
        letter-spacing: 0.1em;
        padding: 3px 8px;
        text-transform: uppercase;
        margin-top: 8px;
    }

    .badge-audit {
        background: var(--warn-dim);
        color: var(--warn);
        border: 1px solid var(--warn);
    }

    .badge-bridge {
        background: var(--accent-dim);
        color: var(--accent);
        border: 1px solid var(--accent);
    }

    .badge-enterprise {
        background: rgba(120, 100, 255, 0.12);
        color: #9d8fff;
        border: 1px solid #9d8fff;
    }

    .pkg-investment {
        display: none;
        flex-direction: column;
        gap: 4px;
        margin: 16px 0;
    }

    .investment-label {
        font-size: 9px;
        color: var(--ink-dim);
        letter-spacing: 0.1em;
        text-transform: uppercase;
        font-family: var(--mono);
    }

    .investment-val {
        font-size: 28px;
        font-family: var(--display);
        color: var(--accent);
        line-height: 1;
    }

    .per-month {
        font-size: 14px;
        color: var(--ink-dim);
        margin-left: 2px;
    }

    .pkg-row.highlight-row .pkg-cell {
        background: var(--accent-dim);
    }

    .pkg-row.highlight-row .pkg-name {
        color: var(--accent);
    }

    /* WHY DAN */
    .why-dan-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1px;
        background: var(--border);
        border: 1px solid var(--border);
        margin-top: 48px;
    }

    .why-cell {
        background: var(--surface);
        padding: 32px;
    }

    .why-cell.wide {
        grid-column: span 2;
        background: var(--surface-2);
    }

    .why-cell h3 {
        font-family: var(--mono);
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        margin-bottom: 12px;
        letter-spacing: 0.04em;
    }

    .why-cell p {
        font-size: 14px;
        color: var(--ink-muted);
        line-height: 1.7;
    }

    .why-cell p strong {
        color: var(--ink);
        font-weight: 500;
    }

    .why-cell.wide blockquote {
        font-family: var(--display);
        font-size: clamp(28px, 4vw, 48px);
        color: var(--ink);
        line-height: 1.1;
        letter-spacing: 0.02em;
    }

    .why-cell.wide blockquote span {
        color: var(--accent);
    }

    .credentials-list {
        list-style: none;
        padding: 0;
        margin-top: 8px;
    }

    .credentials-list li {
        font-family: var(--mono);
        font-size: 12px;
        color: var(--ink-muted);
        padding: 6px 0;
        border-bottom: 1px solid var(--border);
        display: flex;
        gap: 10px;
        align-items: baseline;
    }

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

    .cred-key {
        color: var(--ink-dim);
        width: 160px;
        flex-shrink: 0;
        font-size: 10px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
    }

    /* CTA */
    .cta-section {
        background: var(--surface-2);
        border: 1px solid var(--border);
        padding: 64px 48px;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 40px;
        align-items: center;
        margin-top: 0;
    }

    .cta-section h2 {
        font-family: var(--display);
        font-size: clamp(40px, 5vw, 72px);
        color: var(--ink);
        line-height: 1;
        letter-spacing: 0.02em;
        margin-bottom: 16px;
    }

    .cta-section h2 span {
        color: var(--accent);
    }

    .cta-section p {
        font-size: 15px;
        color: var(--ink-muted);
        max-width: 480px;
        line-height: 1.7;
    }

    .cta-section p strong {
        color: var(--ink);
        font-weight: 500;
    }

    .cta-block {
        display: flex;
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
        flex-shrink: 0;
    }

    .btn-primary {
        font-family: var(--mono);
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--bg);
        background: var(--accent);
        padding: 16px 32px;
        text-decoration: none;
        display: inline-block;
        border: 2px solid var(--accent);
        transition: all 0.2s;
        white-space: nowrap;
    }

    .btn-primary:hover {
        background: transparent;
        color: var(--accent);
    }

    .btn-secondary {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--ink-muted);
        text-decoration: none;
        letter-spacing: 0.08em;
        display: flex;
        align-items: center;
        gap: 6px;
        transition: color 0.2s;
    }

    .btn-secondary:hover {
        color: var(--ink);
    }

    .cta-schema {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.06em;
        margin-top: 8px;
    }

    /* FOOTER */
    footer {
        border-top: 1px solid var(--border);
        padding: 24px 40px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    footer p {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--ink-dim);
        letter-spacing: 0.05em;
    }

    footer a {
        color: var(--accent);
        text-decoration: none;
    }

    /* DIVIDER */
    .rule {
        border: none;
        border-top: 1px solid var(--border);
        margin: 0;
    }

    /* SECTION accent mark */
    .section-num {
        font-family: var(--mono);
        font-size: 10px;
        color: var(--ink-dim);
        letter-spacing: 0.12em;
        position: absolute;
        right: 0;
        bottom: 20px;
    }

    /* MARQUEE */
    .marquee-wrap {
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        overflow: hidden;
        padding: 12px 0;
        background: var(--surface);
    }

    .marquee-track {
        display: flex;
        gap: 60px;
        animation: marquee 24s linear infinite;
        white-space: nowrap;
    }

    .marquee-item {
        font-family: var(--mono);
        font-size: 11px;
        color: var(--ink-dim);
        letter-spacing: 0.12em;
        text-transform: uppercase;
        flex-shrink: 0;
    }

    .marquee-item span {
        color: var(--accent);
        margin-right: 60px;
    }

    @keyframes marquee {
        0% {
            transform: translateX(0);
        }

        100% {
            transform: translateX(-50%);
        }
    }

    /* RESPONSIVE */
    @media (max-width: 900px) {
        nav {
            padding: 0 20px;
        }

        .hero {
            padding: 60px 20px 60px;
        }

        .container {
            padding: 60px 20px;
        }

        .hero-headline {
            font-size: 72px;
        }

        .problem-grid {
            grid-template-columns: 1fr;
        }

        .problem-cell.full-width {
            grid-column: span 1;
        }

        .solution-intro {
            grid-template-columns: 1fr;
        }

        .tech-specs {
            grid-template-columns: 1fr;
        }

        .why-dan-grid {
            grid-template-columns: 1fr;
        }

        .why-cell.wide {
            grid-column: span 1;
        }

        .cta-section {
            grid-template-columns: 1fr;
        }

        .packages-table {
            font-size: 11px;
        }

        .pkg-cell {
            padding: 16px 12px;
        }

        footer {
            flex-direction: column;
            gap: 8px;
            text-align: center;
        }

        .hero-data-strip {
            grid-template-columns: 1fr;
        }

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

        .hero-stat:last-child {
            border-bottom: none;
        }
    }

    /* Entry animations */
    .fade-in {
        opacity: 0;
        transform: translateY(16px);
        animation: fadeUp 0.6s ease forwards;
    }

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

    .delay-1 {
        animation-delay: 0.1s;
    }

    .delay-2 {
        animation-delay: 0.2s;
    }

    .delay-3 {
        animation-delay: 0.3s;
    }

    .delay-4 {
        animation-delay: 0.4s;
    }