:root {
    --bg-abyss: #05060a;
    --bg-deep: #08090e;
    --bg-surface: #0c0e15;
    --bg-card: #10131c;
    --bg-card-elevated: #151926;
    --border-faint: rgba(79, 195, 247, 0.05);
    --border-subtle: rgba(79, 195, 247, 0.1);
    --border-glow: rgba(79, 195, 247, 0.2);
    --cyan: #4fc3f7;
    --cyan-bright: #81d4fa;
    --cyan-dim: rgba(79, 195, 247, 0.5);
    --cyan-ghost: rgba(79, 195, 247, 0.06);
    --blue: #5b8def;
    --amber: #f0a030;
    --green: #66bb6a;
    --text-bright: #f4f7fc;
    --text-primary: #d0d8e8;
    --text-secondary: #7e8ba4;
    --text-tertiary: #4a5568;
    --text-muted: #384050;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-pill: 100px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--bg-abyss);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* === AMBIENT === */
  .ambient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
  }
  .orb-1 { width: 600px; height: 600px; top: -200px; left: -100px; background: rgba(79, 195, 247, 0.04); }
  .orb-2 { width: 500px; height: 500px; bottom: 20%; right: -150px; background: rgba(91, 141, 239, 0.03); }
  .orb-3 { width: 400px; height: 400px; top: 60%; left: 20%; background: rgba(79, 195, 247, 0.02); }

  .grain-overlay {
    position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.3;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  }

  /* === NAV === */
  .nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 20px 40px;
    display: flex; align-items: center; justify-content: space-between;
    background: rgba(5, 6, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-faint);
    transition: var(--transition);
  }
  .nav-brand {
    font-size: 0.8rem; font-weight: 700; letter-spacing: 0.2em;
    color: var(--text-bright); text-transform: uppercase; text-decoration: none;
  }
  .nav-brand span { color: var(--cyan); }
  .nav-links { display: flex; gap: 32px; align-items: center; }
  .nav-links a {
    font-size: 0.82rem; font-weight: 500; color: var(--text-secondary);
    text-decoration: none; letter-spacing: 0.04em; transition: var(--transition);
  }
  .nav-links a:hover { color: var(--text-bright); }
  .nav-cta {
    font-size: 0.8rem; font-weight: 600; color: var(--bg-abyss) !important;
    background: var(--cyan); padding: 10px 24px; border-radius: var(--radius-pill);
    letter-spacing: 0.06em; transition: var(--transition);
  }
  .nav-cta:hover { background: var(--cyan-bright); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(79,195,247,0.3); }

  /* === LAYOUT === */
  .container { max-width: 1140px; margin: 0 auto; padding: 0 40px; position: relative; z-index: 2; }

  /* === HERO === */
  .hero { padding: 160px 0 100px; text-align: center; position: relative; }
  .hero-logo { max-width: 540px; margin: 0 auto 40px; }
  .hero-logo img { width: 100%; height: auto; filter: drop-shadow(0 8px 40px rgba(79,195,247,0.08)); }

  .hero-desc {
    font-family: 'Source Serif 4', serif; font-size: 1.2rem; font-weight: 300;
    color: var(--text-secondary); max-width: 560px; margin: 0 auto 48px; line-height: 1.8;
  }

  .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }

  .btn-primary {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: 'Outfit', sans-serif; font-size: 0.95rem; font-weight: 600;
    color: var(--bg-abyss); background: var(--cyan); padding: 16px 36px;
    border-radius: var(--radius-pill); text-decoration: none; letter-spacing: 0.04em;
    transition: var(--transition); border: none; cursor: pointer;
  }
  .btn-primary:hover { background: var(--cyan-bright); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(79,195,247,0.3); }
  .btn-primary svg { width: 18px; height: 18px; }

  .btn-secondary {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: 'Outfit', sans-serif; font-size: 0.95rem; font-weight: 500;
    color: var(--text-primary); background: transparent; padding: 16px 36px;
    border-radius: var(--radius-pill); text-decoration: none; letter-spacing: 0.04em;
    border: 1px solid var(--border-subtle); transition: var(--transition);
  }
  .btn-secondary:hover { border-color: var(--border-glow); background: var(--cyan-ghost); }

  .hero-meta {
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem;
    color: var(--text-tertiary); letter-spacing: 0.15em;
  }
  .hero-meta span { color: var(--cyan-dim); }

  /* === FEATURES === */
  .section { padding: 100px 0; }
  .section-label {
    font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; font-weight: 600;
    color: var(--cyan); letter-spacing: 0.4em; text-transform: uppercase;
    text-align: center; margin-bottom: 16px;
  }
  .section-title {
    font-size: 2.4rem; font-weight: 800; color: var(--text-bright);
    text-align: center; margin-bottom: 20px; letter-spacing: -0.02em;
  }
  .section-sub {
    font-family: 'Source Serif 4', serif; font-size: 1.05rem; font-weight: 300;
    color: var(--text-secondary); text-align: center; max-width: 520px;
    margin: 0 auto 64px; line-height: 1.8;
  }

  .features-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  }

  .feature-card {
    background: var(--bg-card); border: 1px solid var(--border-faint);
    border-radius: var(--radius-lg); padding: 36px 32px; transition: var(--transition);
    position: relative; overflow: hidden;
  }
  .feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan-dim), transparent);
    opacity: 0; transition: var(--transition);
  }
  .feature-card:hover { border-color: var(--border-subtle); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
  .feature-card:hover::before { opacity: 1; }

  .feature-icon {
    width: 48px; height: 48px; border-radius: 12px; display: flex;
    align-items: center; justify-content: center; margin-bottom: 20px;
    background: var(--cyan-ghost); border: 1px solid rgba(79,195,247,0.1);
    font-size: 1.4rem;
  }
  .feature-title { font-size: 1.1rem; font-weight: 700; color: var(--text-bright); margin-bottom: 10px; }
  .feature-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

  /* === HOW IT WORKS === */
  .how-steps { display: flex; gap: 32px; counter-reset: how-step; }
  .how-step {
    flex: 1; counter-increment: how-step; text-align: center;
    padding: 40px 28px; background: var(--bg-card); border: 1px solid var(--border-faint);
    border-radius: var(--radius-lg); position: relative;
  }
  .how-step::before {
    content: counter(how-step); font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem; font-weight: 600; color: var(--cyan);
    background: var(--cyan-ghost); border: 1px solid rgba(79,195,247,0.15);
    width: 36px; height: 36px; border-radius: 50%; display: flex;
    align-items: center; justify-content: center; margin: 0 auto 20px;
  }
  .how-step-title { font-size: 1rem; font-weight: 700; color: var(--text-bright); margin-bottom: 8px; }
  .how-step-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; }

  /* === PRICING === */
  .pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 960px; margin: 0 auto; }
  .pricing-card {
    background: var(--bg-card); border: 1px solid var(--border-faint);
    border-radius: var(--radius-lg); padding: 40px 32px; text-align: center;
    transition: var(--transition); position: relative;
  }
  .pricing-card.featured {
    border-color: var(--cyan-dim); background: var(--bg-card-elevated);
    box-shadow: 0 0 60px rgba(79,195,247,0.06);
  }
  .pricing-card.featured::before {
    content: 'MOST POPULAR'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    font-family: 'JetBrains Mono', monospace; font-size: 0.6rem; font-weight: 600;
    color: var(--bg-abyss); background: var(--cyan); padding: 4px 16px;
    border-radius: var(--radius-pill); letter-spacing: 0.15em;
  }
  .pricing-card:hover { transform: translateY(-4px); }
  .pricing-tier { font-size: 0.75rem; font-weight: 600; color: var(--text-tertiary); letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 16px; }
  .pricing-price { font-size: 2.8rem; font-weight: 800; color: var(--text-bright); margin-bottom: 4px; }
  .pricing-price span { font-size: 0.9rem; font-weight: 400; color: var(--text-secondary); }
  .pricing-period { font-size: 0.82rem; color: var(--text-tertiary); margin-bottom: 28px; }
  .pricing-features { list-style: none; text-align: left; margin-bottom: 32px; }
  .pricing-features li {
    font-size: 0.85rem; color: var(--text-secondary); padding: 8px 0;
    border-bottom: 1px solid var(--border-faint); display: flex; align-items: center; gap: 10px;
  }
  .pricing-features li::before { content: '✓'; color: var(--cyan); font-weight: 600; flex-shrink: 0; }
  .pricing-features li:last-child { border-bottom: none; }
  .pricing-features li.locked { color: var(--text-muted); opacity: 0.45; }
  .pricing-features li.locked::before { content: '—'; color: var(--text-muted); font-weight: 400; }
  .pricing-btn {
    display: block; width: 100%; font-family: 'Outfit', sans-serif; font-size: 0.9rem;
    font-weight: 600; padding: 14px; border-radius: var(--radius-pill); cursor: pointer;
    text-decoration: none; text-align: center; transition: var(--transition);
  }
  .pricing-btn.primary { color: var(--bg-abyss); background: var(--cyan); border: none; }
  .pricing-btn.primary:hover { background: var(--cyan-bright); box-shadow: 0 4px 20px rgba(79,195,247,0.3); }
  .pricing-btn.outline { color: var(--text-primary); background: transparent; border: 1px solid var(--border-subtle); }
  .pricing-btn.outline:hover { border-color: var(--border-glow); background: var(--cyan-ghost); }

  /* === TRUST === */
  .trust-bar {
    display: flex; justify-content: center; gap: 48px; flex-wrap: wrap;
    padding: 48px 0; border-top: 1px solid var(--border-faint); border-bottom: 1px solid var(--border-faint);
  }
  .trust-item { text-align: center; }
  .trust-value { font-family: 'JetBrains Mono', monospace; font-size: 1.4rem; font-weight: 700; color: var(--cyan); }
  .trust-label { font-size: 0.75rem; color: var(--text-tertiary); margin-top: 4px; letter-spacing: 0.1em; }

  /* === FAQ === */
  .faq-grid { max-width: 720px; margin: 0 auto; }
  .faq-item { border-bottom: 1px solid var(--border-faint); }
  .faq-q {
    font-size: 1rem; font-weight: 600; color: var(--text-bright); padding: 24px 0;
    cursor: pointer; display: flex; justify-content: space-between; align-items: center;
    background: none; border: none; width: 100%; text-align: left; font-family: 'Outfit', sans-serif;
  }
  .faq-q::after { content: '+'; font-size: 1.2rem; color: var(--cyan); transition: var(--transition); }
  .faq-q.open::after { content: '−'; }
  .faq-a { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.8; padding: 0 0 24px; display: none; }
  .faq-a.open { display: block; }

  /* === CTA === */
  .cta-section {
    text-align: center; padding: 120px 0;
    background: radial-gradient(ellipse 600px 400px at 50% 50%, rgba(79,195,247,0.04) 0%, transparent 70%);
  }
  .cta-title { font-size: 2.2rem; font-weight: 800; color: var(--text-bright); margin-bottom: 16px; }
  .cta-desc { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 40px; max-width: 480px; margin-left: auto; margin-right: auto; }

  /* === FOOTER === */
  .footer { padding: 60px 0 40px; border-top: 1px solid var(--border-faint); text-align: center; }
  .footer-brand { font-size: 0.75rem; font-weight: 600; color: var(--text-tertiary); letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 12px; }
  .footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 20px; }
  .footer-links a { font-size: 0.8rem; color: var(--text-tertiary); text-decoration: none; transition: var(--transition); }
  .footer-links a:hover { color: var(--text-secondary); }
  .footer-copy { font-size: 0.72rem; color: var(--text-muted); }

  /* === ANIMATIONS === */
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
  .reveal.visible { opacity: 1; transform: translateY(0); }

  @media (max-width: 768px) {
    .nav { padding: 16px 20px; }
    .nav-links a:not(.nav-cta) { display: none; }
    .container { padding: 0 20px; }
    .hero { padding: 120px 0 60px; }
    .hero-logo { max-width: 320px; }
    .section-title { font-size: 1.8rem; }
    .features-grid, .pricing-grid { grid-template-columns: 1fr; }
    .how-steps { flex-direction: column; }
    .trust-bar { gap: 24px; }
    .hero-actions { flex-direction: column; align-items: center; }
  }