:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #e8edf7;
  background: #09111e;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: #09111e; color: #e8edf7; line-height: 1.6; }
a { color: #74d6bd; text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.9rem); line-height: 1.08; margin: 0.4rem 0 1.1rem; letter-spacing: -0.01em; }
h2 { font-size: 1.35rem; margin: 0 0 0.7rem; }
h3 { font-size: 1rem; margin: 0 0 0.4rem; }
.eyebrow { color: #74d6bd; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; margin: 0; }
.lede { color: #b7c5d8; max-width: 62ch; font-size: 1.02rem; }
.hint { color: #8fa3bb; font-size: 0.88rem; }

/* Top bar ------------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  width: min(1080px, calc(100% - 32px)); margin: 0 auto;
  padding: 14px 0;
  background: rgba(9, 17, 30, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #16283d;
}
.topbar .inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { font-weight: 900; font-size: 1.15rem; letter-spacing: 0.06em; color: #e8edf7; }
.brand:hover { text-decoration: none; }
.brand span { color: #74d6bd; }
.topbar nav { display: flex; gap: 18px; font-size: 0.92rem; }
.topbar nav a { color: #b7c5d8; }
.topbar nav a:hover { color: #74d6bd; text-decoration: none; }

/* Layout ---------------------------------------------------------------- */
.hero, .section, .doc { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
.hero { padding: 88px 0 56px; }
.section { padding: 52px 0; }
.section > h2 { margin-bottom: 0.5rem; }
.divider { border: 0; border-top: 1px solid #16283d; margin: 0; }

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-block; padding: 12px 20px; border-radius: 10px;
  background: #74d6bd; color: #092019; font-weight: 800; font-size: 0.95rem;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.ghost { background: transparent; border: 1px solid #405b75; color: #cfdcec; font-weight: 600; }

/* Outputs grid ------------------------------------------------------------ */
.outputs { list-style: none; margin: 22px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.outputs li {
  padding: 12px 14px; border: 1px solid #23374d; border-radius: 10px;
  background: #101c2d; color: #cfdcec; font-size: 0.92rem;
}
.outputs li::before { content: "◆"; color: #74d6bd; margin-right: 8px; font-size: 0.7rem; }

/* Architecture ------------------------------------------------------------ */
.arch { margin: 26px 0 18px; display: grid; gap: 8px; }
.arch .box {
  border: 1px solid #2b3d55; border-radius: 12px; background: #101d2e;
  padding: 14px 18px; max-width: 560px;
}
.arch .box strong { color: #e8edf7; }
.arch .box small { display: block; color: #8fa3bb; margin-top: 2px; }
.arch .arrow { color: #74d6bd; font-size: 0.8rem; margin-left: 22px; }
.arch .arrow em { color: #8fa3bb; font-style: normal; }
.arch .feedback {
  margin-top: 6px; color: #8fa3bb; font-size: 0.85rem;
  border-left: 3px solid #74d6bd; padding-left: 12px; max-width: 560px;
}

/* Epistemics -------------------------------------------------------------- */
.epistemics { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; margin-top: 22px; }
.epistemics .card { border: 1px solid #23374d; border-radius: 12px; background: #101c2d; padding: 16px; }
.epistemics .card h3 { margin: 0 0 6px; color: #74d6bd; font-size: 0.95rem; }
.epistemics .card p { margin: 0; color: #b7c5d8; font-size: 0.9rem; }

/* Case card ----------------------------------------------------------------- */
.case-card {
  margin-top: 22px; border: 1px solid #2b3d55; border-radius: 14px; background: #101d2e;
  padding: 22px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px;
}
.case-card p { margin: 4px 0 0; color: #b7c5d8; max-width: 56ch; }
.case-card .meta { color: #8fa3bb; font-size: 0.85rem; }

/* Roadmap -------------------------------------------------------------------- */
.roadmap { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-top: 22px; }
.roadmap .card { border: 1px solid #23374d; border-radius: 14px; background: #101c2d; padding: 18px; }
.roadmap .card .phase { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: #8fa3bb; }
.roadmap .card.live .phase { color: #74d6bd; }
.roadmap .card h3 { margin: 8px 0 6px; }
.roadmap .card p { margin: 0; color: #b7c5d8; font-size: 0.92rem; }

/* Case index ----------------------------------------------------------------- */
.doc-list { margin-top: 22px; display: grid; gap: 10px; }
.doc-list a.docrow {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding: 14px 18px; border: 1px solid #23374d; border-radius: 12px; background: #101c2d;
}
.doc-list a.docrow:hover { border-color: #74d6bd; text-decoration: none; }
.doc-list .t { color: #e8edf7; font-weight: 600; }
.doc-list .d { color: #8fa3bb; font-size: 0.88rem; }

/* Document pages --------------------------------------------------------------- */
.doc { padding: 48px 0 64px; max-width: 860px; }
.doc-head { margin-bottom: 30px; }
.doc-head .hint { margin-top: 10px; }
.md { font-size: 0.98rem; }
.md h1 { font-size: 1.7rem; margin-top: 1.6em; }
.md h2 { font-size: 1.25rem; margin-top: 1.5em; border-bottom: 1px solid #1c3049; padding-bottom: 6px; }
.md h3 { font-size: 1.05rem; margin-top: 1.3em; }
.md table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 0.9rem; display: block; overflow-x: auto; }
.md th, .md td { border: 1px solid #23374d; padding: 8px 10px; text-align: left; vertical-align: top; }
.md th { background: #101c2d; color: #e8edf7; }
.md tr:nth-child(even) td { background: #0d1826; }
.md code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.85em; background: #0d1f30; border: 1px solid #1c3049; border-radius: 5px; padding: 1px 5px; }
.md pre { background: #0b1523; border: 1px solid #1c3049; border-radius: 10px; padding: 14px; overflow-x: auto; }
.md pre code { border: 0; background: none; padding: 0; }
.md blockquote { margin: 14px 0; padding: 10px 16px; border-left: 3px solid #74d6bd; background: #0d1f2e; border-radius: 0 10px 10px 0; color: #cfdcec; }
.md blockquote p { margin: 0; }
.md ul, .md ol { padding-left: 1.4em; }
.md li { margin: 4px 0; }
.md hr { border: 0; border-top: 1px solid #16283d; margin: 28px 0; }
.md img { max-width: 100%; border-radius: 10px; }

/* Footer ------------------------------------------------------------------------ */
.foot {
  width: min(1080px, calc(100% - 32px)); margin: 40px auto 0; padding: 22px 0 34px;
  border-top: 1px solid #16283d; color: #8fa3bb; font-size: 0.85rem;
}
.foot a { color: #8fa3bb; }

@media (max-width: 640px) {
  .hero { padding: 56px 0 40px; }
  .topbar nav { gap: 12px; font-size: 0.85rem; }
}