:root {
      --bg:         #0C0C10;
      --surface:    #141418;
      --surface-2:  #1A1A20;
      --surface-3:  #212128;
      --border:     #25252E;
      --border-l:   #2E2E3A;
      --text:       #EDEDF0;
      --text-2:     #9494A3;
      --text-3:     #5C5C6E;
      --accent:     #3ECFB4;
      --accent-h:   #5EEBD0;
      --success:    #46A758;
      --warn:       #E5A100;
      --err:        #E5484D;
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; font-size: 17px; }
    body { font-family: 'Inter', -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }

    /* -- Grid ---------------------------------------- */
    .w { max-width: 1080px; margin: 0 auto; padding: 0 32px; }
    .w--narrow { max-width: 720px; }

    /* -- Nav ----------------------------------------- */
    header {
      position: fixed; top: 0; left: 0; right: 0; z-index: 50;
      padding: 0 32px; height: 56px;
      display: flex; align-items: center; justify-content: center;
      background: rgba(12, 12, 16, 0.8);
      backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(37, 37, 46, 0.5);
    }
    header .inner {
      max-width: 1080px; width: 100%;
      display: flex; align-items: center; justify-content: space-between;
    }
    .logo {
      display: inline-flex; align-items: center; gap: 8px;
      font-weight: 700; font-size: 1.0625rem; color: var(--text);
      text-decoration: none; letter-spacing: -0.03em;
    }
    .logo::before {
      content: ''; width: 6px; height: 6px; border-radius: 50%;
      background: var(--accent); animation: blink 2.4s ease-in-out infinite;
    }
    .logo em { font-style: normal; color: var(--accent); }
    .nav-r { display: flex; align-items: center; gap: 28px; }
    .nav-r a { color: var(--text-2); text-decoration: none; font-size: 0.8125rem; font-weight: 500; transition: color 0.15s; }
    .nav-r a:hover { color: var(--text); }
    .nav-r .nav-btn {
      padding: 7px 16px; background: var(--accent); color: var(--bg); font-weight: 600;
      font-size: 0.8125rem; border-radius: 6px; text-decoration: none; transition: background 0.15s;
    }
    .nav-r .nav-btn:hover { background: var(--accent-h); }

    /* -- Hero ---------------------------------------- */
    .hero {
      padding: 120px 0 72px;
      text-align: center;
    }
    .hero-eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem; font-weight: 500;
      color: var(--accent); letter-spacing: 0.04em; text-transform: uppercase;
      margin-bottom: 24px;
    }
    .hero-eyebrow::before {
      content: ''; width: 6px; height: 6px; border-radius: 50%;
      background: var(--accent); animation: blink 2.4s ease-in-out infinite;
    }
    @keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }
    .hero h1 {
      font-size: clamp(3rem, 6.5vw, 4.5rem); font-weight: 700;
      line-height: 1.08; letter-spacing: -0.04em;
      max-width: 840px; margin: 0 auto 20px;
    }
    .muted { color: var(--text-3); }
    .hero-sub {
      font-size: 1rem; line-height: 1.7; color: var(--text-2);
      max-width: 880px; margin: 0 auto 32px;
    }
    .hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
    .btn {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 12px 24px; font-size: 0.875rem; font-weight: 600;
      border-radius: 8px; text-decoration: none; transition: all 0.15s;
    }
    .btn--accent { background: var(--accent); color: var(--bg); }
    .btn--accent:hover { background: var(--accent-h); transform: translateY(-1px); }
    .btn--ghost { background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border); }
    .btn--ghost:hover { border-color: var(--border-l); color: var(--text); }

    /* Dashboard feed */
    .dash {
      max-width: 480px; margin: 48px auto 0;
      background: var(--surface); border: 1px solid var(--border);
      border-radius: 10px; overflow: hidden; text-align: left;
    }
    .dash-header {
      display: flex; align-items: center; justify-content: space-between;
      padding: 12px 20px; border-bottom: 1px solid var(--border);
    }
    .dash-title {
      font-size: 0.75rem; font-weight: 600; color: var(--text-2);
    }
    .dash-badge {
      font-family: 'JetBrains Mono', monospace; font-size: 0.625rem;
      color: var(--accent); background: rgba(62, 207, 180, 0.08);
      padding: 3px 8px; border-radius: 4px; font-weight: 500;
    }
    .dash-section {
      padding: 16px 20px; border-bottom: 1px solid var(--border);
    }
    .dash-section:last-child { border-bottom: none; }
    .dash-section-title {
      font-size: 0.6875rem; font-weight: 600; color: var(--text-3);
      text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 10px;
    }
    .dash-item {
      display: flex; align-items: baseline; gap: 8px;
      padding: 3px 0; font-size: 0.8125rem; line-height: 1.6;
    }
    .dash-check { color: var(--success); font-size: 0.75rem; flex-shrink: 0; }
    .dash-item span { color: var(--text-2); }
    .dash-item strong { color: var(--text); font-weight: 500; }
    .dash-cta {
      display: flex; align-items: center; justify-content: space-between;
      padding: 14px 20px; background: rgba(62, 207, 180, 0.03);
      font-size: 0.8125rem; color: var(--accent); font-weight: 500;
    }
    .dash-cta span:last-child { font-size: 0.75rem; }

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

    /* -- Section -------------------------------------- */
    .s { padding: 64px 0; }
    .s-label {
      font-family: 'JetBrains Mono', monospace; font-size: 0.625rem;
      font-weight: 500; color: var(--accent); text-transform: uppercase;
      letter-spacing: 0.12em; margin-bottom: 16px;
    }
    .s-title {
      font-size: clamp(1.625rem, 3vw, 2.25rem); font-weight: 700;
      line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 14px;
    }
    .s-desc { color: var(--text-2); font-size: 0.9375rem; line-height: 1.65; max-width: 600px; }

    /* -- Features ------------------------------------- */
    .feat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 48px; background: var(--border); border-radius: 12px; overflow: hidden; }
    .feat {
      background: var(--surface); padding: 32px 28px;
    }
    .feat-icon {
      font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
      color: var(--accent); margin-bottom: 16px; font-weight: 500;
    }
    .feat h3 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.01em; }
    .feat p { color: var(--text-2); font-size: 0.8125rem; line-height: 1.6; }
    .feat-stat {
      margin-top: 16px; font-family: 'JetBrains Mono', monospace;
      font-size: 0.625rem; color: var(--accent); letter-spacing: 0.02em;
    }

    /* -- Onboarding steps ----------------------------- */
    .steps { margin-top: 32px; max-width: 600px; }
    .step {
      display: flex; gap: 24px; padding: 28px 0;
      border-bottom: 1px solid var(--border);
    }
    .step:last-child { border-bottom: none; }
    .step-num {
      font-family: 'JetBrains Mono', monospace; font-size: 0.875rem;
      font-weight: 600; color: var(--accent); flex-shrink: 0;
      width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
      border: 1px solid rgba(62, 207, 180, 0.25); border-radius: 6px;
      margin-top: 2px;
    }
    .step-content h3 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 6px; }
    .step-content p { color: var(--text-2); font-size: 0.8125rem; line-height: 1.65; }
    .step-tag {
      display: inline-block; margin-top: 10px;
      font-family: 'JetBrains Mono', monospace; font-size: 0.625rem;
      color: var(--accent); letter-spacing: 0.02em;
    }

    /* -- Architecture --------------------------------- */
    .arch { margin-top: 48px; max-width: 560px; }
    .arch-layer {
      padding: 22px 28px; border: 1px solid var(--border);
      background: var(--surface);
    }
    .arch-layer + .arch-layer { margin-top: -1px; }
    .arch-layer:first-child { border-radius: 10px 10px 0 0; }
    .arch-layer:last-child { border-radius: 0 0 10px 10px; }
    .arch-layer--accent {
      background: rgba(62, 207, 180, 0.03);
      border-color: rgba(62, 207, 180, 0.12);
    }
    .arch-layer .row {
      display: flex; align-items: baseline; justify-content: space-between;
    }
    .arch-layer .name { font-weight: 600; font-size: 0.9375rem; }
    .arch-layer .tag {
      font-family: 'JetBrains Mono', monospace; font-size: 0.625rem;
      color: var(--text-3); text-transform: uppercase; letter-spacing: 0.08em;
    }
    .arch-layer--accent .tag { color: var(--accent); }
    .arch-layer .desc { color: var(--text-2); font-size: 0.8125rem; margin-top: 4px; }
    .arch-note { color: var(--text-3); font-size: 0.875rem; line-height: 1.6; margin-top: 28px; max-width: 580px; }

    /* -- Comparison ----------------------------------- */
    .cmp { margin-top: 48px; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
    .cmp table { width: 100%; border-collapse: collapse; }
    .cmp th, .cmp td {
      text-align: left; padding: 14px 24px; font-size: 0.875rem;
      border-bottom: 1px solid var(--border);
    }
    .cmp thead th {
      font-size: 0.6875rem; font-weight: 600; text-transform: uppercase;
      letter-spacing: 0.06em; color: var(--text-3); background: var(--surface);
      padding: 12px 24px;
    }
    .cmp thead th:nth-child(2) { color: var(--accent); }
    .cmp tbody tr:last-child td { border-bottom: none; }
    .cmp td:first-child { color: var(--text-2); font-weight: 500; }
    .cmp td:nth-child(2) {
      color: var(--accent); font-family: 'JetBrains Mono', monospace; font-size: 0.8125rem; font-weight: 500;
      background: rgba(62, 207, 180, 0.02);
    }
    .cmp td:nth-child(3) { color: var(--text-3); }

    /* -- Credibility ---------------------------------- */
    .cred-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 48px; align-items: start; }
    .cred-copy p { color: var(--text-2); font-size: 0.875rem; line-height: 1.7; margin-bottom: 14px; }
    .cred-copy p:last-child { margin-bottom: 0; }
    .ceil { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 28px 32px; }
    .ceil h3 { font-size: 0.8125rem; font-weight: 600; margin-bottom: 24px; color: var(--text-2); }
    .ceil-row { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
    .ceil-row:last-of-type { margin-bottom: 0; }
    .ceil-label { font-size: 0.8125rem; color: var(--text-2); width: 140px; flex-shrink: 0; }
    .ceil-track { flex: 1; height: 4px; background: var(--surface-3); border-radius: 2px; overflow: hidden; }
    .ceil-fill { height: 100%; border-radius: 2px; }
    .ceil-fill--hi { background: var(--accent); }
    .ceil-fill--mid { background: var(--warn); }
    .ceil-val { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text); width: 52px; text-align: right; flex-shrink: 0; }
    .ceil-note { color: var(--text-3); font-size: 0.75rem; line-height: 1.5; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }

    /* -- Network -------------------------------------- */
    .net-points { margin-top: 48px; max-width: 560px; }
    .net-point {
      display: flex; gap: 16px; padding: 20px 0;
      border-bottom: 1px solid var(--border);
    }
    .net-point:last-child { border-bottom: none; }
    .net-icon {
      font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
      color: var(--accent); flex-shrink: 0; margin-top: 3px;
    }
    .net-point p { color: var(--text-2); font-size: 0.875rem; line-height: 1.65; }
    .net-point strong { color: var(--text); font-weight: 600; }

    /* -- Audiences ------------------------------------ */
    .aud-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px; background: var(--border); border-radius: 12px; overflow: hidden; }
    .aud { background: var(--surface); padding: 28px 24px; }
    .aud-tag {
      font-family: 'JetBrains Mono', monospace; font-size: 0.5625rem;
      font-weight: 500; color: var(--accent); text-transform: uppercase;
      letter-spacing: 0.12em; margin-bottom: 14px;
    }
    .aud h3 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 10px; line-height: 1.35; }
    .aud p { color: var(--text-2); font-size: 0.8125rem; line-height: 1.6; }
    .aud .outcome {
      margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border);
      color: var(--accent); font-size: 0.8125rem; font-weight: 500;
    }

    /* -- CTA ------------------------------------------ */
    .cta { padding: 100px 0; text-align: center; }
    .cta h2 {
      font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 700;
      line-height: 1.12; letter-spacing: -0.03em; margin-bottom: 16px;
    }
    .cta p { color: var(--text-2); font-size: 0.9375rem; max-width: 420px; margin: 0 auto 32px; line-height: 1.65; }
    .cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

    /* -- Footer --------------------------------------- */
    footer {
      padding: 24px 0; border-top: 1px solid var(--border);
      display: flex; justify-content: center;
    }
    footer .inner {
      max-width: 1080px; width: 100%; padding: 0 32px;
      display: flex; justify-content: space-between; align-items: center;
    }
    footer span { font-size: 0.75rem; color: var(--text-3); }
    footer a { color: var(--text-2); text-decoration: none; font-size: 0.75rem; }
    footer a:hover { color: var(--text); }

    /* -- Responsive: Tablet --------------------------- */
    @media (max-width: 768px) {
      .feat-grid { grid-template-columns: 1fr; }
      .aud-grid { grid-template-columns: 1fr; }
      .cred-grid { grid-template-columns: 1fr; gap: 32px; }
      .cmp { overflow-x: auto; }
      .cmp th, .cmp td { padding: 12px 16px; font-size: 0.8125rem; }
      .nav-r a:not(.nav-btn) { display: none; }
      .hero { padding: 120px 0 80px; }
      .s { padding: 72px 0; }
      .arch { max-width: 100%; }
      .steps { max-width: 100%; }
      .net-points { max-width: 100%; }
    }

    /* -- Responsive: Mobile --------------------------- */
    @media (max-width: 480px) {
      .w { padding: 0 20px; }
      header { padding: 0 20px; }
      .hero { padding: 100px 0 64px; }
      .hero h1 { font-size: 2.25rem; }
      .hero-sub { font-size: 0.9375rem; max-width: 100%; }
      .s { padding: 56px 0; }
      .s-title { font-size: 1.5rem; }
      .feat { padding: 24px 20px; }
      .feat h3 { font-size: 0.875rem; }
      .aud { padding: 24px 20px; }
      .aud h3 { font-size: 0.875rem; }
      .cta { padding: 72px 0; }
      .cta h2 { font-size: 1.5rem; }
      .dash-item { font-size: 0.75rem; }
      .dash-section { padding: 12px 16px; }
      .dash-header { padding: 10px 16px; }
      .dash-cta { padding: 12px 16px; }
      .arch-layer { padding: 18px 20px; }
      .arch-layer .name { font-size: 0.875rem; }
      .arch-layer .tag { font-size: 0.5625rem; }
      .ceil { padding: 24px 20px; }
      .ceil-label { min-width: 100px; font-size: 0.75rem; }
      .btn { padding: 12px 20px; font-size: 0.8125rem; width: 100%; justify-content: center; }
      .hero-actions { flex-direction: column; }
      .cta-actions { flex-direction: column; align-items: center; }
      .step { gap: 16px; }
    }