:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: #0b1829;
  --panel: rgba(15, 31, 49, 0.82);
  --line: rgba(165, 195, 221, 0.16);
  --text: #edf6ff;
  --muted: #8ca4bc;
  --blue: #2ca8ff;
  --cyan: #38e4d1;
  --orange: #ffab5c;
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.shell { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }

.site-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  min-height: 78px;
  padding: 0 24px;
  width: min(1280px, 100%);
}

.brand { align-items: center; display: inline-flex; font-size: 15px; font-weight: 500; gap: 11px; letter-spacing: -.02em; }
.brand img { border-radius: 11px; height: 34px; object-fit: cover; width: 34px; }
.brand strong { color: var(--blue); font-weight: 700; }
.site-header nav { display: flex; gap: 28px; }
.site-header nav a, .text-link { color: var(--muted); font-size: 13px; transition: color .2s ease; }
.site-header nav a:hover, .text-link:hover { color: var(--text); }

.hero { align-items: center; display: grid; gap: 80px; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); min-height: 650px; padding-bottom: 90px; padding-top: 100px; }
.eyebrow { align-items: center; color: var(--cyan); display: flex; font-size: 11px; font-weight: 700; gap: 9px; letter-spacing: .16em; margin: 0 0 22px; text-transform: uppercase; }
.status-dot { background: var(--cyan); border-radius: 100%; box-shadow: 0 0 0 5px rgba(56, 228, 209, .12); height: 7px; width: 7px; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(48px, 6.2vw, 86px); letter-spacing: -.075em; line-height: .98; margin-bottom: 28px; max-width: 790px; }
h1 em, h2 em { color: var(--blue); font-style: normal; }
.hero-lead { color: var(--muted); font-size: 17px; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 36px; }
.button { align-items: center; border: 1px solid var(--line); border-radius: 6px; display: inline-flex; font-size: 13px; font-weight: 700; gap: 16px; justify-content: center; min-height: 48px; padding: 0 20px; transition: border-color .2s ease, background .2s ease, transform .2s ease; }
.button:hover { border-color: rgba(255,255,255,.38); transform: translateY(-2px); }
.button-primary { background: var(--blue); border-color: var(--blue); color: #03101d; }
.button-primary:hover { background: #62bcff; border-color: #62bcff; }
.button-quiet { color: var(--muted); }

.hero-panel { background: linear-gradient(145deg, rgba(30, 62, 89, .74), rgba(9, 21, 35, .82)); border: 1px solid rgba(91, 187, 255, .25); border-radius: 12px; box-shadow: 0 25px 80px rgba(0,0,0,.22); padding: 30px; position: relative; }
.hero-panel::before { background: var(--cyan); content: ""; height: 3px; left: 30px; position: absolute; right: 30px; top: -1px; }
.panel-heading { border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 7px; padding-bottom: 22px; }
.panel-heading span, .card-number, .roadmap-state { color: var(--cyan); font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.panel-heading strong { font-size: 20px; letter-spacing: -.03em; }
.panel-line { border-bottom: 1px solid var(--line); display: flex; font-size: 13px; justify-content: space-between; padding: 16px 0; }
.panel-line span { color: var(--muted); }
.panel-line b { color: var(--text); font-weight: 600; }
.panel-progress { background: rgba(255,255,255,.12); height: 4px; margin: 26px 0 15px; overflow: hidden; }
.panel-progress span { background: linear-gradient(90deg, var(--cyan), var(--blue)); display: block; height: 100%; width: 78%; }
.hero-panel p { color: var(--muted); font-size: 12px; margin: 0; }

.stats { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); padding: 26px 0; }
.stats div { border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 3px; padding-left: 26px; }
.stats div:first-child { padding-left: 0; }
.stats div:last-child { border-right: 0; }
.stats strong { font-size: 22px; letter-spacing: -.04em; }
.stats span { color: var(--muted); font-size: 11px; }

.section { padding-bottom: 120px; padding-top: 150px; }
.section-heading { max-width: 720px; }
.section-heading h2, .principle-intro h2, .closing h2 { font-size: clamp(34px, 4vw, 56px); letter-spacing: -.065em; line-height: 1.02; margin-bottom: 22px; }
.section-heading > p:last-child, .closing p { color: var(--muted); font-size: 16px; max-width: 650px; }
.feature-grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); margin-top: 58px; }
.feature-card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; min-height: 245px; padding: 27px; }
.feature-card-accent { background: linear-gradient(155deg, rgba(19, 66, 91, .76), var(--panel)); border-color: rgba(56, 228, 209, .35); }
.feature-card h3 { font-size: 21px; letter-spacing: -.04em; margin: 38px 0 11px; }
.feature-card p { color: var(--muted); font-size: 13px; margin: 0; }
.card-number { color: var(--blue); }

.section-roadmap { padding-top: 45px; }
.split-heading { align-items: end; display: flex; justify-content: space-between; max-width: none; }
.text-link { border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.roadmap-list { border-top: 1px solid var(--line); margin-top: 58px; }
.roadmap-item { border-bottom: 1px solid var(--line); display: grid; gap: 24px; grid-template-columns: 48px 1fr; padding: 28px 0; }
.roadmap-marker { align-items: center; border: 1px solid var(--line); border-radius: 100%; color: var(--muted); display: flex; font-size: 18px; height: 36px; justify-content: center; margin-top: 2px; width: 36px; }
.roadmap-item.is-complete .roadmap-marker { border-color: rgba(56,228,209,.5); color: var(--cyan); }
.roadmap-item.is-current .roadmap-marker { border-color: rgba(44,168,255,.65); color: var(--blue); }
.roadmap-state { color: var(--muted); margin-bottom: 7px; }
.is-current .roadmap-state { color: var(--blue); }
.roadmap-item h3 { font-size: 22px; letter-spacing: -.04em; margin-bottom: 8px; }
.roadmap-item p:last-child { color: var(--muted); font-size: 14px; margin: 0; max-width: 780px; }

.principles { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; gap: 80px; grid-template-columns: .8fr 1.2fr; padding-bottom: 110px; padding-top: 110px; }
.principle-intro h2 { font-size: clamp(33px, 4vw, 48px); }
.principle-list > div { border-bottom: 1px solid var(--line); display: grid; gap: 22px; grid-template-columns: 36px 1fr; padding: 17px 0; }
.principle-list > div:first-child { border-top: 1px solid var(--line); }
.principle-list span { color: var(--blue); font-size: 11px; font-weight: 800; padding-top: 4px; }
.principle-list p { color: var(--muted); font-size: 14px; margin: 0; }
.principle-list strong { color: var(--text); }

.closing { align-items: end; display: flex; gap: 40px; justify-content: space-between; padding-bottom: 120px; padding-top: 120px; }
.closing h2 { margin-bottom: 16px; }
.closing .eyebrow { margin-bottom: 16px; }
.not-found { min-height: 80vh; }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); display: flex; font-size: 11px; justify-content: space-between; padding-bottom: 28px; padding-top: 28px; }

@media (max-width: 820px) {
  .site-header { padding-inline: 20px; }
  .site-header nav { gap: 14px; }
  .site-header nav a { font-size: 11px; }
  .hero { gap: 48px; grid-template-columns: 1fr; min-height: auto; padding-bottom: 80px; padding-top: 80px; }
  .hero-panel { max-width: 560px; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 22px; }
  .stats div:nth-child(2) { border-right: 0; }
  .stats div:nth-child(3) { border-top: 1px solid var(--line); padding-left: 0; padding-top: 22px; }
  .stats div:nth-child(4) { border-top: 1px solid var(--line); padding-top: 22px; }
  .feature-grid { grid-template-columns: 1fr; }
  .principles { gap: 48px; grid-template-columns: 1fr; }
  .closing { align-items: start; flex-direction: column; }
}

@media (max-width: 520px) {
  .shell { width: min(var(--max), calc(100% - 32px)); }
  .brand { font-size: 13px; }
  .brand img { height: 30px; width: 30px; }
  .site-header nav a:first-child { display: none; }
  h1 { font-size: 49px; }
  .hero-lead { font-size: 15px; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .split-heading { align-items: start; flex-direction: column; gap: 18px; }
  .site-footer { flex-direction: column; gap: 7px; }
}