:root {
      --bg: #101c2c;
      --panel: #192a3d;
      --text: #f5f7fa;
      --muted: #b8c5d4;
      --accent: #67e2c1;
      --line: rgba(255,255,255,.12);
    }

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

    html { scroll-behavior: smooth; }

    body {
      font-family: Arial, Helvetica, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.8;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    .container {
      width: min(1100px, 90%);
      margin: auto;
    }

    header {
      position: sticky;
      top: 0;
      z-index: 10;
      background: rgba(16,28,44,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }

    nav {
      min-height: 76px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }

    .logo {
      font-size: 25px;
      font-weight: 800;
      letter-spacing: -1px;
    }

    .logo span { color: var(--accent); }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 25px;
      font-size: 14px;
      color: var(--muted);
    }

    .nav-links a:hover { color: var(--accent); }

    .btn {
      display: inline-block;
      padding: 12px 23px;
      background: var(--accent);
      color: #10251f;
      border: 1px solid var(--accent);
      border-radius: 8px;
      font-weight: 700;
      transition: .2s;
      cursor: pointer;
    }

    .btn:hover { transform: translateY(-2px); }

    .btn-outline {
      background: transparent;
      border-color: var(--line);
      color: var(--text);
    }

    .hero {
      padding: 105px 0 95px;
      background:
        radial-gradient(ellipse at 85% 15%,
        rgba(103,226,193,.15), transparent 40%);
    }

    .eyebrow {
      color: var(--accent);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 17px;
    }

    h1 {
      max-width: 780px;
      font-size: clamp(39px, 6vw, 67px);
      line-height: 1.15;
      letter-spacing: -2px;
      margin-bottom: 23px;
    }

    .hero p {
      max-width: 680px;
      font-size: 17px;
      color: var(--muted);
      margin-bottom: 30px;
    }

    .actions {
      display: flex;
      flex-wrap: wrap;
      gap: 13px;
    }

    section { padding: 78px 0; }

    .section-heading {
      max-width: 700px;
      margin-bottom: 35px;
    }

    h2 {
      font-size: clamp(28px, 4vw, 41px);
      line-height: 1.3;
      margin-bottom: 15px;
    }

    .section-heading p,
    .card p,
    .about-content p,
    .faq-list p {
      color: var(--muted);
    }

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

    .card {
      padding: 28px;
      border: 1px solid var(--line);
      border-radius: 15px;
      background: var(--panel);
      transition: .25s;
    }

    .card:hover {
      transform: translateY(-5px);
      border-color: rgba(103,226,193,.6);
    }

    .symbol {
      font-size: 29px;
      margin-bottom: 13px;
    }

    h3 {
      font-size: 20px;
      margin-bottom: 12px;
    }

    .card a {
      display: inline-block;
      color: var(--accent);
      font-weight: 700;
      margin-top: 16px;
    }

    .about {
      background: rgba(255,255,255,.025);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .about-content {
      max-width: 850px;
    }

    .about-content p { margin-bottom: 19px; }

    .faq-list {
      display: grid;
      gap: 13px;
    }

    details {
      padding: 19px 21px;
      border: 1px solid var(--line);
      background: var(--panel);
      border-radius: 10px;
    }

    summary {
      font-weight: 700;
      cursor: pointer;
    }

    .faq-list p { margin-top: 12px; }

    .contact-box {
      text-align: center;
      padding: 48px 25px;
      border: 1px solid var(--line);
      background: var(--panel);
      border-radius: 18px;
    }

    .contact-box p {
      max-width: 600px;
      margin: 14px auto 25px;
      color: var(--muted);
    }

    footer {
      border-top: 1px solid var(--line);
      padding: 26px 0;
      color: var(--muted);
      font-size: 13px;
    }

    .footer-inner {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 15px;
    }

    @media (max-width: 760px) {
      .hero { padding: 72px 0; }
      .cards { grid-template-columns: 1fr; }
      section { padding: 56px 0; }
      .nav-links { gap: 13px; font-size: 12px; }
      .nav-cta { display: none; }
      .contact-box { padding: 30px 20px; }
    }

    @media (max-width: 430px) {
      .logo { font-size: 21px; }
      .nav-links { gap: 10px; }
      .nav-links .about-link { display: none; }
      h1 { letter-spacing: -1px; }
    }