:root {
  color-scheme: dark;
  --bg: #080b11;
  --surface: #0f1520;
  --panel: rgba(16,22,34,.82);
  --panel-strong: #151d2b;
  --text: #f2f5fa;
  --muted: #9ba8b9;
  --muted-2: #667286;
  --line: rgba(178,194,216,.16);
  --line-strong: rgba(178,194,216,.32);
  --lime: #c9f66d;
  --cyan: #75d9df;
  --violet: #b99bff;
  --orange: #f7aa66;
  --red: #ff7f87;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f1ea;
  --surface: #fffdf8;
  --panel: rgba(255,253,248,.9);
  --panel-strong: #ffffff;
  --text: #131c2b;
  --muted: #536173;
  --muted-2: #748094;
  --line: rgba(28,43,64,.17);
  --line-strong: rgba(28,43,64,.35);
  --lime: #526d16;
  --cyan: #087a85;
  --violet: #6346b1;
  --orange: #a65d18;
  --red: #ad3a44;
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 86% 0%, rgba(117,217,223,.08), transparent 28rem), var(--bg); color: var(--text); font: 15px/1.6 var(--sans); }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.route-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.route-nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; border-bottom: 1px solid var(--line); }
.brand { font-size: 15px; font-weight: 800; letter-spacing: -.04em; }
.brand span { margin-left: 10px; color: var(--muted-2); font: 10px var(--mono); letter-spacing: .08em; }
.route-nav-actions { display: flex; align-items: center; gap: 16px; color: var(--muted); font: 11px var(--mono); }
.route-nav-actions a:hover { color: var(--text); }
.theme-toggle { cursor: pointer; padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px; background: transparent; color: var(--muted); font: 10px var(--mono); }
.theme-toggle:hover { border-color: var(--lime); color: var(--lime); }
.route-main { padding: 82px 0 100px; }
.eyebrow { margin: 0; color: var(--lime); font: 10px/1.4 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.route-head { display: grid; grid-template-columns: 1fr .78fr; align-items: stretch; gap: 48px; margin-top: 15px; }
.route-head h1 { max-width: 760px; margin: 16px 0 12px; font-size: clamp(48px, 8vw, 94px); line-height: .94; letter-spacing: -.075em; }
.tagline { max-width: 680px; margin: 0; color: var(--text); font-size: clamp(20px, 3vw, 28px); line-height: 1.15; letter-spacing: -.045em; }
.route-lede { max-width: 650px; margin: 25px 0 0; color: var(--muted); font-size: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.chip { padding: 6px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font: 10px var(--mono); letter-spacing: .04em; }
.chip.primary { border-color: color-mix(in srgb, var(--lime) 55%, transparent); color: var(--lime); }
.route-cover { position: relative; min-height: 360px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(140deg, var(--panel-strong), var(--panel)); box-shadow: 0 20px 70px rgba(0,0,0,.18); }
.route-cover:before { content: ""; position: absolute; inset: 0; opacity: .34; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 28px 28px; mask-image: linear-gradient(135deg, black, transparent 76%); }
.route-cover:after { content: ""; position: absolute; width: 190px; height: 190px; right: -55px; top: -60px; border-radius: 50%; background: var(--accent, var(--cyan)); opacity: .3; filter: blur(35px); }
.cover-meta, .cover-name { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 12px; color: var(--muted-2); font: 10px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.cover-meta span:last-child { color: var(--accent, var(--cyan)); }
.cover-core { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.cover-symbol { color: var(--text); font-size: clamp(60px, 10vw, 122px); font-weight: 850; line-height: .85; letter-spacing: -.1em; }
.cover-rule { width: 35%; height: 1px; background: var(--accent, var(--cyan)); opacity: .75; }
.cover-name { color: var(--text); font-size: 12px; letter-spacing: .03em; text-transform: none; }
.content-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px; margin-top: 68px; }
.route-section { padding: 25px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.route-section + .route-section { margin-top: 16px; }
.route-section h2 { margin: 0 0 14px; font-size: 22px; letter-spacing: -.05em; }
.route-section h3 { margin: 0 0 8px; font-size: 13px; letter-spacing: -.02em; }
.route-section p { margin: 0; color: var(--muted); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; }
.fact { min-height: 86px; padding: 14px; background: var(--surface); }
.fact small { display: block; margin-bottom: 5px; color: var(--muted-2); font: 9px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.fact strong { display: block; font-size: 13px; font-weight: 650; }
.stack { display: flex; flex-wrap: wrap; gap: 7px; }
.stack span { padding: 6px 8px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); font: 10px var(--mono); }
.milestone-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.milestone { min-height: 118px; padding: 17px; border-left: 2px solid var(--accent, var(--cyan)); background: var(--surface); }
.milestone small { display: block; margin-bottom: 7px; color: var(--muted-2); font: 9px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.milestone p { color: var(--text); font-size: 14px; line-height: 1.45; }
.route-links { display: flex; flex-wrap: wrap; gap: 10px; }
.route-link { display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: 10px; color: var(--text); font: 11px var(--mono); }
.route-link:hover { border-color: var(--lime); color: var(--lime); }
.privacy-note { margin-top: 13px !important; color: var(--muted-2) !important; font: 10px/1.5 var(--mono); }
.route-footer { padding-top: 26px; margin-top: 65px; border-top: 1px solid var(--line); color: var(--muted-2); font: 10px var(--mono); }
@media (max-width: 820px) {
  .route-shell { width: min(100% - 28px, 680px); }
  .route-nav { min-height: 68px; }
  .route-nav-actions a { display: none; }
  .route-main { padding: 55px 0 70px; }
  .route-head, .content-grid { grid-template-columns: 1fr; gap: 22px; }
  .route-head h1 { font-size: clamp(48px, 15vw, 78px); }
  .route-cover { min-height: 260px; }
  .content-grid { margin-top: 35px; }
}
@media (max-width: 480px) {
  .route-shell { width: min(100% - 22px, 680px); }
  .route-section { padding: 18px; }
  .facts, .milestone-grid { grid-template-columns: 1fr; }
}