:root {
      --bg: #09131f;
      --surface: #101f30;
      --surface-2: #14263a;
      --text: #f3f6f8;
      --muted: #a7b6c6;
      --teal: #50e0c0;
      --gold: #e7bd73;
      --line: rgba(177, 203, 221, .15);
      --width: 1160px;
    }

    * { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      background:
        radial-gradient(ellipse at 82% 8%, rgba(40, 120, 126, .13), transparent 34%),
        var(--bg);
      color: var(--text);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
      line-height: 1.7;
    }

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

    .wrap {
      width: min(var(--width), 90%);
      margin: auto;
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 10;
      background: rgba(9, 19, 31, .94);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(16px);
    }

    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -.04em;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      flex: 0 0 auto;
    }

    .brand span { color: var(--teal); }

    .nav-links {
      display: flex;
      flex-wrap: wrap;
      gap: 25px;
      align-items: center;
      color: var(--muted);
      font-size: .88rem;
    }

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

    .nav-cta {
      border: 1px solid rgba(80, 224, 192, .6);
      padding: 9px 15px;
      border-radius: 5px;
      color: var(--teal);
    }

    .hero {
      padding: 105px 0 90px;
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 65px;
      align-items: center;
    }

    .eyebrow {
      color: var(--teal);
      font-size: .75rem;
      font-weight: 800;
      letter-spacing: .2em;
      text-transform: uppercase;
    }

    h1 {
      max-width: 760px;
      margin: 20px 0;
      font-size: clamp(3rem, 6.5vw, 5.7rem);
      line-height: 1.02;
      letter-spacing: -.065em;
    }

    h1 em {
      color: var(--teal);
      font-style: normal;
    }

    .lead {
      max-width: 650px;
      color: var(--muted);
      font-size: 1.13rem;
    }

    .actions {
      display: flex;
      flex-wrap: wrap;
      gap: 13px;
      margin-top: 30px;
    }

    .button {
      display: inline-block;
      padding: 13px 19px;
      border-radius: 5px;
      background: var(--teal);
      color: #071721;
      font-size: .9rem;
      font-weight: 800;
    }

    .button.secondary {
      color: var(--text);
      background: transparent;
      border: 1px solid var(--line);
    }

    .hero-art {
      min-height: 360px;
      position: relative;
      display: grid;
      place-items: center;
      border: 1px solid var(--line);
      border-radius: 18px;
      background:
        radial-gradient(circle at center, rgba(80, 224, 192, .12), transparent 58%),
        linear-gradient(145deg, #12263a, #0b1725);
      overflow: hidden;
    }

    .hero-art svg {
      width: min(88%, 390px);
      height: auto;
    }

    .art-caption {
      position: absolute;
      bottom: 22px;
      left: 24px;
      color: var(--muted);
      font-size: .75rem;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    section { padding: 78px 0; }

    .section-head {
      max-width: 720px;
      margin-bottom: 34px;
    }

    h2 {
      margin: 12px 0;
      font-size: clamp(2rem, 4vw, 3.1rem);
      line-height: 1.12;
      letter-spacing: -.045em;
    }

    h3 { margin-top: 0; }

    .muted { color: var(--muted); }

    .grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 17px;
    }

    .card {
      min-width: 0;
      padding: 27px;
      border: 1px solid var(--line);
      border-radius: 10px;
      background: linear-gradient(145deg, var(--surface), rgba(16, 31, 48, .65));
    }

    .card p { color: var(--muted); font-size: .94rem; }

    .card-number {
      color: var(--teal);
      font-size: .78rem;
      font-weight: 800;
      letter-spacing: .13em;
    }

    .two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 55px;
      align-items: start;
    }

    .pipeline {
      display: grid;
      gap: 12px;
      margin-top: 25px;
    }

    .pipeline-step {
      display: flex;
      gap: 17px;
      align-items: flex-start;
      padding: 17px;
      border: 1px solid var(--line);
      border-radius: 8px;
      background: var(--surface);
    }

    .step-no {
      color: var(--teal);
      font-weight: 800;
      min-width: 27px;
    }

    .pipeline-step p {
      margin: 4px 0 0;
      color: var(--muted);
      font-size: .9rem;
    }

    .status {
      display: inline-block;
      margin-bottom: 13px;
      padding: 4px 9px;
      border: 1px solid rgba(80, 224, 192, .35);
      border-radius: 3px;
      color: var(--teal);
      font-size: .68rem;
      font-weight: 800;
      letter-spacing: .1em;
      text-transform: uppercase;
    }

    .status.planned {
      color: var(--gold);
      border-color: rgba(231, 189, 115, .4);
    }

    .roadmap {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 17px;
    }

    .roadmap .card { min-height: 185px; }

    .founder-panel {
      padding: 38px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background:
        linear-gradient(115deg, rgba(80, 224, 192, .08), transparent 60%),
        var(--surface);
    }

    .notice {
      margin-top: 28px;
      padding: 19px 22px;
      border-left: 3px solid var(--gold);
      background: rgba(231, 189, 115, .07);
      color: var(--muted);
      font-size: .9rem;
    }

    .contact {
      padding: 48px;
      border: 1px solid rgba(80, 224, 192, .25);
      border-radius: 12px;
      background: linear-gradient(120deg, #122a3b, #102033);
    }

    footer {
      padding: 35px 0;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: .84rem;
    }

    .footer-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 18px;
    }

    @media (max-width: 800px) {
      .hero, .two-col { grid-template-columns: 1fr; }
      .hero { padding-top: 70px; gap: 35px; }
      .hero-art { min-height: 290px; }
      .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .nav { align-items: flex-start; padding: 17px 0; flex-direction: column; }
      .nav-links { gap: 15px; }
    }

    @media (max-width: 560px) {
      .grid, .roadmap { grid-template-columns: minmax(0, 1fr); }
      section { padding: 55px 0; }
      .contact, .founder-panel { padding: 25px; }
      .nav-links { font-size: .8rem; }
    }


/* TrustNG expandable roadmap cards */
.roadmap-groups { display:grid; gap:24px; }
.roadmap-group { border:1px solid var(--line); border-radius:12px; background:rgba(16,31,48,.38); overflow:hidden; }
.roadmap-group > summary { cursor:pointer; padding:22px 25px; font-size:1.15rem; font-weight:800; list-style:none; display:flex; justify-content:space-between; gap:16px; align-items:center; }
.roadmap-group > summary::-webkit-details-marker { display:none; }
.roadmap-group > summary::after { content:"+"; color:var(--teal); font-size:1.5rem; }
.roadmap-group[open] > summary::after { content:"−"; }
.roadmap-group > summary:hover { color:var(--teal); }
.roadmap-items { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; padding:0 18px 20px; }
.roadmap-feature { border:1px solid var(--line); border-radius:9px; background:var(--surface); overflow:hidden; }
.roadmap-feature > summary { cursor:pointer; list-style:none; padding:18px; display:grid; gap:9px; }
.roadmap-feature > summary::-webkit-details-marker { display:none; }
.roadmap-feature > summary::after { content:"＋ Open explanation"; color:var(--teal); font-size:.75rem; font-weight:700; }
.roadmap-feature[open] > summary::after { content:"− Close explanation"; }
.roadmap-feature > summary:hover h3 { color:var(--teal); }
.roadmap-feature h3 { margin:0; font-size:1.05rem; }
.roadmap-feature-body { padding:0 18px 18px; color:var(--muted); font-size:.9rem; }
.roadmap-feature-body p { margin:9px 0; }
.roadmap-feature-body strong { color:var(--text); }
.roadmap-count { color:var(--muted); font-size:.8rem; font-weight:500; }
.roadmap-search { width:100%; max-width:620px; padding:14px 16px; border:1px solid var(--line); border-radius:8px; background:var(--surface); color:var(--text); font:inherit; }
.roadmap-search:focus { outline:2px solid var(--teal); outline-offset:2px; }
@media(max-width:700px) { .roadmap-items { grid-template-columns:1fr; padding:0 12px 14px; } .roadmap-group > summary { padding:18px; } }

/* TrustNG multi-page navigation */
.nav-menu {
  position: relative;
}

.nav-menu summary {
  cursor: pointer;
  list-style: none;
  color: var(--muted);
  font-size: .88rem;
}

.nav-menu summary::-webkit-details-marker {
  display: none;
}

.nav-menu summary::after {
  content: "⌄";
  margin-left: 7px;
  color: var(--teal);
}

.nav-menu[open] summary,
.nav-menu summary:hover {
  color: var(--teal);
}

.nav-dropdown {
  position: absolute;
  z-index: 30;
  top: calc(100% + 18px);
  left: -18px;
  min-width: 230px;
  display: grid;
  gap: 2px;
  padding: 9px;
  background: #14263a;
  border: 1px solid rgba(80, 224, 192, .25);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .35);
}

.nav-dropdown a {
  display: block;
  padding: 10px 12px;
  color: var(--muted);
  font-size: .82rem;
}

.nav-dropdown a:hover {
  color: var(--teal);
  background: rgba(255, 255, 255, .05);
}

@media (max-width: 800px) {
  .nav-menu {
    position: static;
  }

  .nav-dropdown {
    position: static;
    min-width: 0;
    margin-top: 8px;
    box-shadow: none;
  }
}

/* Accessibility: visible keyboard focus */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
}

/* Accessibility: respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }
}


/* Accessibility: skip navigation */
.skip-link {
  transition: none;
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 10000;
  padding: 12px 18px;
  background: #ffffff;
  color: #101b24;
  border: 2px solid currentColor;
  border-radius: 4px;
  font-weight: 700;
  transform: translateY(-160%);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}