* { box-sizing: border-box; }
:root {
  --bg: #f4f0e7;
  --surface: #fffdf8;
  --ink: #171914;
  --muted: #65675f;
  --line: #d8d2c6;
  --accent: #e84b3c;
  --accent-dark: #bd3228;
  --green: #376b54;
  --shadow: 0 24px 70px rgba(48, 43, 34, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 12% 5%, rgba(255,255,255,.95), transparent 29rem), var(--bg); }
a { color: inherit; }
.site-header { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 26px 0; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; font-size: 1.1rem; letter-spacing: -.02em; }
.brand-mark { width: 23px; height: 23px; border-radius: 50%; border: 7px solid var(--accent); display: inline-block; }
.nav { display: flex; gap: 28px; }
.nav a { text-decoration: none; color: var(--muted); font-size: .92rem; font-weight: 650; }
.nav a:hover { color: var(--ink); }
main { overflow: hidden; }
.hero { width: min(1180px, calc(100% - 40px)); min-height: 650px; margin: 0 auto; padding: 72px 0 92px; display: grid; grid-template-columns: minmax(0,1.03fr) minmax(430px,.97fr); gap: 72px; align-items: center; }
.eyebrow,.section-label { margin: 0 0 15px; color: var(--accent-dark); text-transform: uppercase; font-size: .74rem; font-weight: 850; letter-spacing: .15em; }
.hero h1 { max-width: 720px; margin: 0; font-size: clamp(3.3rem,6vw,6.6rem); line-height: .94; letter-spacing: -.065em; }
.hero-text { max-width: 650px; margin: 30px 0 0; color: var(--muted); font-size: 1.14rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 13px; margin-top: 34px; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 48px; padding: 0 21px; align-items: center; justify-content: center; border-radius: 10px; text-decoration: none; font-weight: 750; font-size: .94rem; transition: transform 120ms ease, background 120ms ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: white; }
.button-primary:hover { background: #30332c; }
.button-secondary { border: 1px solid var(--line); background: rgba(255,255,255,.48); }
.meta-row { margin-top: 37px; display: flex; flex-wrap: wrap; gap: 8px; }
.meta-row span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: rgba(255,255,255,.45); font-size: .77rem; font-weight: 680; }
.network-card { position: relative; overflow: hidden; border: 1px solid #dbd5ca; border-radius: 25px; background: var(--surface); box-shadow: var(--shadow); }
.network-map { width: 100%; display: block; }
.grid-line { fill: none; stroke: #eee9df; stroke-width: 1; }
.route-shadow { fill: none; stroke: rgba(34,28,23,.09); stroke-width: 20; stroke-linecap: round; }
.route { fill: none; stroke: var(--accent); stroke-width: 12; stroke-linecap: round; }
.station { fill: var(--surface); stroke: var(--ink); stroke-width: 7; }
.station-inner { fill: var(--surface); stroke: none; }
.train { fill: var(--ink); stroke: var(--surface); stroke-width: 4; }
.train-window { fill: var(--surface); stroke: none; }
.passenger { fill: var(--surface); stroke: var(--ink); stroke-width: 4; }
.network-card-footer { min-height: 54px; padding: 0 22px; border-top: 1px solid #e3ded3; display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .8rem; font-weight: 700; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(55,107,84,.12); }
.section { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 105px 0; }
.intro { border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: end; }
.intro h2,.section-heading h2,.roadmap h2 { margin: 0; font-size: clamp(2.1rem,4vw,4rem); line-height: 1.04; letter-spacing: -.045em; }
.intro>p,.roadmap>p:last-child { margin: 0; color: var(--muted); font-size: 1.04rem; line-height: 1.8; }
.section-heading { max-width: 720px; margin-bottom: 45px; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature-card { min-height: 260px; padding: 29px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.25); }
.feature-number { color: var(--accent-dark); font-size: .72rem; font-weight: 850; letter-spacing: .12em; }
.feature-card h3 { margin: 47px 0 13px; font-size: 1.35rem; letter-spacing: -.025em; }
.feature-card p,.step p { margin: 0; color: var(--muted); line-height: 1.65; font-size: .93rem; }
.play-section,.requirements-section { border-top: 1px solid var(--line); }
.steps { border-top: 1px solid var(--line); }
.step { min-height: 126px; padding: 25px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 80px 1fr; gap: 25px; align-items: center; }
.step>span { width: 43px; height: 43px; border-radius: 50%; background: var(--ink); color: white; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; }
.step h3 { margin: 0 0 8px; font-size: 1.18rem; }
code { padding: .14rem .38rem; border-radius: 5px; background: rgba(23,25,20,.08); font-size: .91em; }
.warning { margin-top: 28px; padding: 21px 24px; border-radius: 13px; background: #ece2d1; display: flex; gap: 9px; flex-wrap: wrap; line-height: 1.5; }
.warning span { color: #665f55; }
.requirements { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.requirements>div { min-height: 145px; padding: 26px 20px; border-right: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; }
.requirements>div:last-child { border-right: none; }
.requirement-label { color: var(--muted); font-size: .78rem; font-weight: 700; }
.requirements strong { font-size: 1.12rem; }
.roadmap { margin-bottom: 70px; border-radius: 26px; padding-left: 54px; padding-right: 54px; background: var(--ink); color: white; }
.roadmap .section-label { color: #ff9288; }
.roadmap h2,.roadmap>p:last-child { max-width: 780px; }
.roadmap>p:last-child { margin-top: 25px; color: #c9ccc3; }
.site-footer { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 32px 0 50px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto auto; gap: 25px; align-items: center; color: var(--muted); font-size: .81rem; }
.site-footer p { margin: 0; }
.footer-brand { color: var(--ink); }
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 55px; }
  .network-card { max-width: 620px; }
  .intro { grid-template-columns: 1fr; gap: 30px; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .requirements { grid-template-columns: repeat(2,1fr); }
  .requirements>div:nth-child(2) { border-right: none; }
  .requirements>div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .site-footer { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .site-header { padding-top: 20px; }
  .nav { display: none; }
  .hero { min-height: auto; padding: 45px 0 70px; }
  .hero h1 { font-size: clamp(3rem,15vw,5rem); }
  .section { padding: 76px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 220px; }
  .step { grid-template-columns: 55px 1fr; }
  .requirements { grid-template-columns: 1fr; }
  .requirements>div,.requirements>div:nth-child(2) { border-right: none; border-bottom: 1px solid var(--line); }
  .requirements>div:last-child { border-bottom: none; }
  .roadmap { width: calc(100% - 24px); padding: 65px 28px; }
}