:root {
  color-scheme: dark;
  --background: #07101b;
  --surface: #101d2a;
  --surface-raised: #172838;
  --text: #f5f8fb;
  --muted: #9fb1c2;
  --cyan: #29c9e6;
  --green: #43d392;
  --amber: #f3b548;
  --border: rgba(255, 255, 255, 0.1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(41, 201, 230, 0.12), transparent 33rem),
    radial-gradient(circle at 90% 15%, rgba(67, 211, 146, 0.09), transparent 28rem),
    var(--background);
}

a { color: var(--cyan); }

.shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}

.brand {
  color: var(--text);
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

nav { display: flex; gap: 20px; }
nav a { color: var(--muted); text-decoration: none; font-weight: 600; }
nav a:hover, nav a:focus { color: var(--text); }

main { padding: 72px 0 96px; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 12px 0 18px;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 { margin-top: 46px; font-size: 1.65rem; letter-spacing: -0.025em; }
h3 { margin: 0 0 8px; }
p, li { color: var(--muted); line-height: 1.72; }
.lead { max-width: 690px; font-size: 1.14rem; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 13px;
  color: var(--text);
  background: var(--surface-raised);
  font-weight: 700;
  text-decoration: none;
}
.button.primary { color: #021015; border-color: transparent; background: var(--cyan); }

.route-card, .card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(23, 40, 56, 0.95), rgba(10, 21, 32, 0.96));
  box-shadow: 0 32px 70px rgba(0, 0, 0, 0.28);
}

.route-card { padding: 26px; }
.screen-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.screen {
  height: 74px;
  border: 1px solid rgba(41, 201, 230, 0.45);
  border-radius: 12px;
  background: linear-gradient(160deg, rgba(41, 201, 230, 0.2), rgba(41, 201, 230, 0.03));
}
.screen:nth-child(2) { border-color: rgba(67, 211, 146, 0.5); }
.route-line { height: 64px; margin: 0 auto; width: 3px; background: linear-gradient(var(--green), var(--amber)); }
.cue { width: 82px; height: 82px; margin: 0 auto; border: 9px solid var(--amber); border-radius: 50%; box-shadow: 0 0 28px rgba(243, 181, 72, 0.4); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 54px; }
.card { padding: 22px; box-shadow: none; }
.card p { margin-bottom: 0; }

.document { max-width: 800px; }
.document h1 { font-size: clamp(2.5rem, 7vw, 4.5rem); }
.notice {
  margin: 34px 0;
  padding: 18px 20px;
  border-left: 3px solid var(--amber);
  border-radius: 0 12px 12px 0;
  background: rgba(243, 181, 72, 0.08);
}
.notice p { margin: 0; }

footer {
  padding: 28px 0 42px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 760px) {
  header { align-items: flex-start; flex-direction: column; }
  main { padding-top: 40px; }
  .hero, .grid { grid-template-columns: 1fr; }
  .route-card { max-width: 460px; }
}

@media (prefers-reduced-motion: no-preference) {
  .button { transition: transform 140ms ease, background-color 140ms ease; }
  .button:hover { transform: translateY(-1px); }
}