:root {
      --bg: #0a0c10;
      --surface: #111318;
      --surface2: #181c23;
      --border: #232730;
      --accent: #4f6ef7;
      --accent2: #7c3aed;
      --accent-glow: rgba(79,110,247,0.18);
      --text: #f0f2f7;
      --muted: #7c8394;
      --muted2: #4a5060;
      --green: #22c55e;
      --amber: #f59e0b;
      --red: #ef4444;
      --card-border: #1e2330;
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Helvetica, Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      font-size: 16px;
    }

    /* ── NAV ── */
    nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(10,12,16,0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      padding: 0 6vw;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }
    .nav-logo {
      font-size: 1.15rem;
      font-weight: 700;
      letter-spacing: -0.03em;
      color: var(--text);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .nav-logo span.badge {
      background: var(--accent);
      color: #fff;
      font-size: 0.6rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      padding: 2px 7px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }
    .nav-links a {
      color: var(--muted);
      text-decoration: none;
      font-size: 0.875rem;
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--text); }
    .nav-cta {
      background: var(--accent);
      color: #fff;
      border: none;
      border-radius: 8px;
      padding: 9px 20px;
      font-size: 0.875rem;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      transition: background 0.2s, transform 0.15s;
    }
    .nav-cta:hover { background: #3d5ae0; transform: translateY(-1px); }

    /* ── SECTIONS ── */
    section { padding: 96px 6vw; }
    .section-label {
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 14px;
    }
    h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1.08; }
    h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.15; }
    h3 { font-size: 1.1rem; font-weight: 600; line-height: 1.3; }
    p.lead { font-size: 1.1rem; color: var(--muted); max-width: 640px; line-height: 1.75; }
    .text-gradient {
      background: linear-gradient(135deg, #4f6ef7 0%, #a78bfa 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    /* ── HERO ── */
    #hero {
      min-height: calc(100vh - 64px);
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding-top: 80px;
      padding-bottom: 80px;
      position: relative;
      overflow: hidden;
    }
    .hero-glow {
      position: absolute;
      width: 700px;
      height: 700px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(79,110,247,0.12) 0%, transparent 70%);
      top: -100px;
      right: -150px;
      pointer-events: none;
    }
    .hero-glow2 {
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(124,58,237,0.09) 0%, transparent 70%);
      bottom: 0;
      left: 20%;
      pointer-events: none;
    }
    .hero-inner { max-width: 800px; position: relative; z-index: 1; margin: 0 auto; }
    #hero .lead { margin-left: auto; margin-right: auto; }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 6px 16px;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--muted);
      margin-bottom: 28px;
    }
    .hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
    .hero-cta-group { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; justify-content: center; }
    .btn-primary {
      background: var(--accent);
      color: #fff;
      border: none;
      border-radius: 10px;
      padding: 14px 28px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
      box-shadow: 0 0 0 0 var(--accent-glow);
    }
    .btn-primary:hover { background: #3d5ae0; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(79,110,247,0.3); }
    .btn-secondary {
      background: transparent;
      color: var(--text);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 14px 28px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: border-color 0.2s, background 0.2s, transform 0.15s;
    }
    .btn-secondary:hover { border-color: var(--accent); background: var(--accent-glow); transform: translateY(-2px); }

    .hero-stats {
      display: flex;
      gap: 48px;
      margin-top: 60px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .stat { }
    .stat .num { font-size: 2rem; font-weight: 800; letter-spacing: -0.04em; }
    .stat .label { font-size: 0.8rem; color: var(--muted); margin-top: 2px; }

    /* ── MARQUEE ── */
    .marquee-section {
      padding: 40px 0;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }
    .marquee-label { text-align: center; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.12em; color: var(--muted2); text-transform: uppercase; margin-bottom: 28px; }
    .marquee-track {
      display: flex;
      gap: 60px;
      animation: marquee 28s linear infinite;
      white-space: nowrap;
    }
    .marquee-track:hover { animation-play-state: paused; }
    @keyframes marquee {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }
    .marquee-item {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--muted2);
      letter-spacing: 0.04em;
      flex-shrink: 0;
    }

    /* ── PLATFORM ── */
    .platform-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
      margin-top: 56px;
    }
    .platform-card {
      background: var(--surface);
      border: 1px solid var(--card-border);
      border-radius: 16px;
      padding: 32px;
      transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    }
    .platform-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(79,110,247,0.12);
    }
    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
    }
    .card-icon.blue { background: rgba(79,110,247,0.15); }
    .card-icon.purple { background: rgba(124,58,237,0.15); }
    .card-icon.green { background: rgba(34,197,94,0.15); }
    .card-icon.amber { background: rgba(245,158,11,0.15); }
    .card-icon.cyan { background: rgba(6,182,212,0.15); }
    .card-icon.rose { background: rgba(244,63,94,0.15); }
    .platform-card h3 { margin-bottom: 10px; }
    .platform-card p { font-size: 0.875rem; color: var(--muted); line-height: 1.7; }

    /* ── DIFFERENTIATION ── */
    #differentiation { background: var(--surface); }
    .diff-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      margin-top: 56px;
      align-items: start;
    }
    @media (max-width: 900px) { .diff-grid { grid-template-columns: 1fr; } }
    .diff-item {
      display: flex;
      gap: 20px;
      padding: 28px;
      border: 1px solid var(--card-border);
      border-radius: 14px;
      background: var(--bg);
      transition: border-color 0.2s;
    }
    .diff-item:hover { border-color: var(--accent); }
    .diff-num {
      font-size: 0.7rem;
      font-weight: 800;
      color: var(--accent);
      letter-spacing: 0.08em;
      min-width: 28px;
      padding-top: 3px;
    }
    .diff-body h3 { margin-bottom: 8px; font-size: 1rem; }
    .diff-body p { font-size: 0.85rem; color: var(--muted); line-height: 1.7; }
    .diff-body .tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
    .tag {
      background: var(--surface2);
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 3px 10px;
      font-size: 0.72rem;
      font-weight: 600;
      color: var(--muted);
      letter-spacing: 0.04em;
    }
    .tag.accent { background: rgba(79,110,247,0.12); border-color: rgba(79,110,247,0.3); color: #818cf8; }

    /* ── ARCHITECTURE DIAGRAM ── */
    #architecture { }
    .arch-diagram {
      margin-top: 56px;
      background: var(--surface);
      border: 1px solid var(--card-border);
      border-radius: 20px;
      padding: 48px;
      overflow-x: auto;
    }
    .arch-row {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 16px;
    }
    .arch-arrow {
      display: flex;
      justify-content: center;
      color: var(--muted2);
      font-size: 1.2rem;
      margin: 8px 0;
    }
    .arch-box {
      background: var(--bg);
      border: 1px solid var(--card-border);
      border-radius: 10px;
      padding: 10px 18px;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--muted);
      text-align: center;
      transition: border-color 0.2s, color 0.2s;
    }
    .arch-box:hover { border-color: var(--accent); color: var(--text); }
    .arch-box.highlighted {
      border-color: var(--accent);
      color: var(--accent);
      background: var(--accent-glow);
    }
    .arch-box.core {
      border-color: rgba(124,58,237,0.5);
      color: #a78bfa;
      background: rgba(124,58,237,0.1);
      font-weight: 700;
    }
    .arch-layer-label {
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--muted2);
      text-align: center;
      margin-bottom: 12px;
    }
    .arch-divider { border: none; border-top: 1px dashed var(--border); margin: 24px 0; }

    /* ── COMPETITIVE ── */
    #competitive { background: var(--surface); }
    .comp-table-wrap { overflow-x: auto; margin-top: 48px; }
    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.82rem;
    }
    thead tr { background: var(--surface2); }
    thead th {
      padding: 14px 18px;
      text-align: left;
      font-weight: 700;
      color: var(--muted);
      border-bottom: 1px solid var(--border);
      white-space: nowrap;
      font-size: 0.78rem;
      letter-spacing: 0.03em;
    }
    thead th.us { color: var(--accent); }
    tbody tr { border-bottom: 1px solid var(--border); transition: background 0.15s; }
    tbody tr:hover { background: var(--surface2); }
    tbody td {
      padding: 13px 18px;
      color: var(--muted);
      vertical-align: middle;
    }
    tbody td:first-child { font-weight: 600; color: var(--text); }
    .check { color: var(--green); font-size: 1rem; }
    .partial { color: var(--amber); font-size: 1rem; }
    .cross { color: var(--red); font-size: 1rem; }
    .us-cell { color: var(--text); font-size: 0.8rem; }

    /* ── PRICING ── */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
      margin-top: 56px;
      align-items: start;
    }
    .pricing-card {
      background: var(--surface);
      border: 1px solid var(--card-border);
      border-radius: 18px;
      padding: 36px 28px;
      position: relative;
      transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    }
    .pricing-card:hover { transform: translateY(-4px); }
    .pricing-card.featured {
      border-color: var(--accent);
      box-shadow: 0 0 0 1px var(--accent), 0 20px 60px rgba(79,110,247,0.2);
    }
    .pricing-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #fff;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      padding: 4px 14px;
      border-radius: 20px;
    }
    .pricing-tier { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
    .pricing-price { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.05em; }
    .pricing-price span { font-size: 1rem; font-weight: 500; color: var(--muted); }
    .pricing-sub { font-size: 0.78rem; color: var(--muted); margin-top: 4px; margin-bottom: 24px; }
    .pricing-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
    .pricing-features { list-style: none; display: flex; flex-direction: column; gap: 10px; }
    .pricing-features li {
      font-size: 0.83rem;
      color: var(--muted);
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .pricing-features li::before { content: "✓"; color: var(--green); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
    .pricing-cta {
      width: 100%;
      margin-top: 28px;
      padding: 12px;
      border-radius: 10px;
      font-size: 0.88rem;
      font-weight: 600;
      cursor: pointer;
      text-align: center;
      border: 1px solid var(--border);
      background: transparent;
      color: var(--text);
      text-decoration: none;
      display: block;
      transition: background 0.2s, border-color 0.2s;
    }
    .pricing-cta:hover { background: var(--surface2); border-color: var(--accent); }
    .pricing-cta.featured-btn {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
    }
    .pricing-cta.featured-btn:hover { background: #3d5ae0; }

    /* ── MARKET ── */
    .market-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-top: 56px;
    }
    .market-card {
      background: var(--surface);
      border: 1px solid var(--card-border);
      border-radius: 14px;
      padding: 28px;
    }
    .market-card .num {
      font-size: 2rem;
      font-weight: 800;
      letter-spacing: -0.04em;
      background: linear-gradient(135deg, #4f6ef7, #a78bfa);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .market-card .label { font-size: 0.85rem; color: var(--muted); margin-top: 6px; }
    .market-card .sub { font-size: 0.75rem; color: var(--muted2); margin-top: 4px; }

    /* ── CONTACT ── */
    #contact { background: var(--surface); }
    .contact-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: start;
    }
    @media (max-width: 820px) { .contact-inner { grid-template-columns: 1fr; gap: 48px; } }
    .contact-info p { color: var(--muted); font-size: 0.9rem; margin-top: 16px; line-height: 1.8; }
    .contact-bullets { margin-top: 32px; display: flex; flex-direction: column; gap: 14px; }
    .contact-bullet { display: flex; align-items: flex-start; gap: 14px; }
    .bullet-icon { font-size: 1rem; margin-top: 2px; }
    .bullet-text { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }
    .bullet-text strong { color: var(--text); }

    form { display: flex; flex-direction: column; gap: 20px; }
    label { font-size: 0.8rem; font-weight: 600; color: var(--muted); display: block; margin-bottom: 6px; letter-spacing: 0.02em; }
    input, select, textarea {
      width: 100%;
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 12px 16px;
      color: var(--text);
      font-size: 0.9rem;
      font-family: inherit;
      transition: border-color 0.2s, box-shadow 0.2s;
      outline: none;
    }
    input:focus, select:focus, textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(79,110,247,0.15);
    }
    select option { background: var(--bg); }
    textarea { resize: vertical; min-height: 120px; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    @media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
    .form-submit {
      background: var(--accent);
      color: #fff;
      border: none;
      border-radius: 10px;
      padding: 14px 28px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    }
    .form-submit:hover { background: #3d5ae0; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,110,247,0.3); }
    .form-note { font-size: 0.75rem; color: var(--muted2); }

    /* ── FOOTER ── */
    footer {
      border-top: 1px solid var(--border);
      padding: 48px 6vw;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }
    .footer-logo { font-size: 1rem; font-weight: 700; letter-spacing: -0.03em; }
    .footer-links { display: flex; gap: 28px; }
    .footer-links a { font-size: 0.8rem; color: var(--muted); text-decoration: none; transition: color 0.2s; }
    .footer-links a:hover { color: var(--text); }
    .footer-copy { font-size: 0.78rem; color: var(--muted2); }

    /* ── RESPONSIVE NAV ── */
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hero-stats { gap: 28px; }
      .diff-grid { grid-template-columns: 1fr; }
      .arch-diagram { padding: 24px; }
    }

    /* ── MISC ── */
    .divider { border: none; border-top: 1px solid var(--border); margin: 0; }
    .mt-8 { margin-top: 8px; }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .success-msg {
      display: none;
      background: rgba(34,197,94,0.12);
      border: 1px solid rgba(34,197,94,0.4);
      border-radius: 10px;
      padding: 16px 20px;
      color: var(--green);
      font-size: 0.9rem;
      font-weight: 600;
    }
  /* ── AUTH ── */
  .nav-logout {
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.2s, color 0.2s;
    margin-left: 12px;
  }
  .nav-logout:hover { border-color: var(--accent); color: var(--text); }