:root {
    --bg: #04080f;
    --surface: #080e1a;
    --surface2: #0d1625;
    --border: #1a2a40;
    --border-bright: #1e3a5f;
    --accent: #00d4ff;
    --accent2: #0066cc;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --text: #e8f2ff;
    --text-dim: #8aaac8;
    --text-bright: #ffffff;
    --mono: 'JetBrains Mono', monospace;
    --sans: 'Syne', sans-serif;
  }

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

  body {
    background: var(--bg); color: var(--text); font-family: var(--mono);
    min-height: 100vh; overflow-x: hidden; position: relative;
    line-height: 1.6;
  }
  /* grid de fondo */
  body::before {
    content: ''; position: fixed; inset: 0;
    background-image:
      linear-gradient(rgba(0,212,255,0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,212,255,0.025) 1px, transparent 1px);
    background-size: 48px 48px; pointer-events: none; z-index: 0;
  }
  /* línea de scan global */
  body::after {
    content: ''; position: fixed; top: -100%; left: 0; width: 100%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.35; animation: scan 9s linear infinite; pointer-events: none; z-index: 1;
  }
  @keyframes scan { 0% { top: -2px; } 100% { top: 100%; } }

  /* glow radial detrás del hero */
  .hero-glow {
    position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
    width: min(900px, 90vw); height: 480px; pointer-events: none; z-index: 0;
    background: radial-gradient(ellipse at center, rgba(0,212,255,0.12), transparent 65%);
    filter: blur(20px);
  }

  .wrapper {
    position: relative; z-index: 2;
    max-width: 1080px; margin: 0 auto;
    padding: 28px 24px 60px;
  }

  /* ── Top nav ── */
  nav.top {
    display: flex; align-items: center; justify-content: space-between;
    padding-bottom: 20px; margin-bottom: 56px;
    border-bottom: 1px solid var(--border);
  }
  nav .brand {
    font-family: var(--sans); font-weight: 800;
    font-size: 17px; letter-spacing: 0.06em; color: var(--text-bright);
    display: flex; align-items: center; gap: 10px;
  }
  nav .brand::before {
    content: ''; width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent); box-shadow: 0 0 10px var(--accent);
    animation: pulse 2.4s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%      { transform: scale(1.4); opacity: 0.6; }
  }
  nav .brand span { color: var(--accent); }
  nav .actions a.btn-link {
    color: var(--accent); text-decoration: none; font-size: 11px;
    font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
    padding: 9px 18px; border: 1px solid rgba(0,212,255,0.3);
    border-radius: 4px; transition: 0.2s;
  }
  nav .actions a.btn-link:hover {
    background: var(--accent-glow); border-color: var(--accent);
    box-shadow: 0 0 18px rgba(0,212,255,0.18);
  }

  /* ── Hero ── */
  .hero {
    position: relative; padding: 40px 0 72px;
    text-align: center;
  }
  .hero .eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--accent); padding: 7px 14px;
    border: 1px solid rgba(0,212,255,0.3); border-radius: 100px;
    background: var(--accent-glow); margin-bottom: 28px;
    backdrop-filter: blur(4px);
    animation: fadeUp 0.6s ease-out both;
  }
  .hero .eyebrow .eyebrow-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent); box-shadow: 0 0 8px var(--accent);
  }

  .hero h1 {
    font-family: var(--sans); font-weight: 800;
    font-size: clamp(34px, 5.5vw, 58px);
    line-height: 1.05; letter-spacing: -0.02em;
    color: var(--text-bright);
    margin: 0 auto 26px;
    max-width: 16ch;
    animation: fadeUp 0.7s ease-out 0.05s both;
  }
  .hero h1 em {
    font-style: normal;
    background: linear-gradient(120deg, var(--accent) 0%, #5fbeff 50%, var(--accent) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: shine 6s linear infinite;
  }
  @keyframes shine {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
  }

  .hero p.lead {
    font-size: clamp(13px, 1.1vw, 15px); color: var(--text-dim);
    max-width: 580px; margin: 0 auto 36px; line-height: 1.7;
    animation: fadeUp 0.7s ease-out 0.15s both;
  }
  .cta-row {
    display: flex; gap: 12px; flex-wrap: wrap;
    justify-content: center;
    animation: fadeUp 0.7s ease-out 0.25s both;
  }
  .btn-primary, .btn-secondary {
    font-family: var(--mono); font-size: 12px; font-weight: 600;
    letter-spacing: 0.1em; text-transform: uppercase;
    padding: 13px 26px; border-radius: 4px; cursor: pointer;
    text-decoration: none; transition: 0.2s; display: inline-flex;
    align-items: center; gap: 10px;
  }
  .btn-primary {
    background: var(--accent2); color: var(--text-bright);
    border: 1px solid var(--accent2);
    box-shadow: 0 0 24px rgba(0,102,204,0.3);
  }
  .btn-primary:hover {
    background: #0077ee; transform: translateY(-1px);
    box-shadow: 0 4px 28px rgba(0,102,204,0.45);
  }
  .btn-secondary {
    background: transparent; color: var(--text);
    border: 1px solid var(--border-bright);
  }
  .btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

  /* mini-stats decorativos */
  .mini-stats {
    display: flex; gap: 36px; flex-wrap: wrap; justify-content: center;
    margin-top: 40px;
    animation: fadeUp 0.7s ease-out 0.35s both;
  }
  .mini-stat { text-align: center; }
  .mini-stat-num {
    font-family: var(--sans); font-weight: 700;
    font-size: 22px; color: var(--accent); letter-spacing: 0.02em;
  }
  .mini-stat-label {
    font-size: 9px; color: var(--text-dim); letter-spacing: 0.15em;
    text-transform: uppercase; margin-top: 2px;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  /* ── Section divider ── */
  .divider {
    height: 1px; background: linear-gradient(90deg, transparent, var(--border-bright), transparent);
    margin: 0 auto; max-width: 600px; position: relative;
  }
  .divider::after {
    content: ''; position: absolute; top: -3px; left: 50%; transform: translateX(-50%);
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent); box-shadow: 0 0 10px var(--accent);
  }

  /* ── Section ── */
  .section { margin: 80px 0; }
  .section-eyebrow {
    font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 12px; font-weight: 500;
  }
  .section h2 {
    font-family: var(--sans); font-weight: 700;
    font-size: clamp(22px, 2.4vw, 32px);
    color: var(--text-bright); margin-bottom: 16px; letter-spacing: -0.01em;
    line-height: 1.15;
  }
  .section h2 span { color: var(--accent); }
  .section p.section-lead {
    font-size: 13px; color: var(--text-dim); max-width: 640px;
    margin-bottom: 32px; line-height: 1.7;
  }

  /* ── Features ── */
  .features {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
  }
  .card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 8px; padding: 22px;
    position: relative; transition: 0.25s;
    overflow: hidden;
  }
  .card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 0; height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
    transition: width 0.4s ease-out;
  }
  .card:hover {
    border-color: var(--border-bright); transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  }
  .card:hover::before { width: 100%; }
  .card .num {
    font-family: var(--sans); font-weight: 800;
    font-size: 11px; letter-spacing: 0.2em; color: var(--accent);
    margin-bottom: 14px; display: inline-block;
    padding: 3px 8px; border: 1px solid rgba(0,212,255,0.3);
    border-radius: 3px; background: var(--accent-glow);
  }
  .card h3 {
    font-family: var(--sans); font-weight: 700; font-size: 16px;
    color: var(--text-bright); margin-bottom: 8px; letter-spacing: 0.01em;
  }
  .card p {
    font-size: 12px; color: var(--text-dim); line-height: 1.6;
  }

  /* ── Steps ── */
  .steps {
    display: grid; gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    position: relative;
  }
  .step {
    background: var(--surface2); border-left: 2px solid var(--accent);
    border-radius: 0 6px 6px 0; padding: 16px 18px;
    transition: 0.2s;
  }
  .step:hover { border-left-color: var(--text-bright); transform: translateX(2px); }
  .step .step-num {
    font-family: var(--sans); font-weight: 800; font-size: 10px;
    color: var(--accent); letter-spacing: 0.2em; margin-bottom: 6px;
  }
  .step h4 { font-size: 13px; color: var(--text); margin-bottom: 4px; font-weight: 600; }
  .step p { font-size: 11px; color: var(--text-dim); line-height: 1.55; }

  /* ── Big CTA ── */
  .cta-block {
    background:
      radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 70%),
      linear-gradient(135deg, var(--surface) 0%, var(--surface2) 100%);
    border: 1px solid var(--border-bright);
    border-radius: 12px; padding: 56px 36px;
    text-align: center;
    position: relative; overflow: hidden;
  }
  .cta-block::after {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
  }
  .cta-block h2 {
    font-family: var(--sans); font-size: clamp(22px, 2.6vw, 32px);
    color: var(--text-bright); margin-bottom: 14px;
  }
  .cta-block p {
    color: var(--text-dim); margin-bottom: 28px;
    max-width: 540px; margin-left: auto; margin-right: auto;
    font-size: 13px;
  }
  .cta-block .cta-row { justify-content: center; }

  /* ── Footer ── */
  footer {
    border-top: 1px solid var(--border);
    padding-top: 28px; margin-top: 60px;
    display: grid; grid-template-columns: 1fr auto;
    gap: 14px; align-items: center;
    font-size: 11px; color: var(--text-dim);
  }
  footer .foot-brand { font-family: var(--sans); font-weight: 700; color: var(--text); }
  footer .foot-brand span { color: var(--accent); }
  footer a { color: var(--text-dim); text-decoration: none; transition: 0.2s; }
  footer a:hover { color: var(--accent); }
  footer .foot-links { display: flex; gap: 22px; }

  @media (max-width: 700px) {
    .wrapper { padding: 22px 18px 40px; }
    nav.top { margin-bottom: 36px; }
    .hero { padding: 28px 0 48px; }
    .section { margin: 60px 0; }
    .cta-block { padding: 40px 22px; }
    footer { grid-template-columns: 1fr; text-align: left; }
  }