:root {
  color-scheme: light;
  --background: #eef5ef;
  --background-warm: #ffffff;
  --surface: #ffffff;
  --surface-soft: #e8f2ea;
  --text: #113d2b;
  --text-strong: #06381f;
  --muted: #52645b;
  --accent: #00843d;
  --accent-strong: #006b31;
  --accent-warm: #00a651;
  --accent-soft: #dff2e7;
  --success: #00843d;
  --danger: #c62828;
  --warning: #9b6a00;
  --line: rgba(0, 132, 61, 0.2);
  --shadow: 0 24px 70px rgba(0, 70, 35, 0.12);
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(0, 132, 61, 0.16), transparent 28rem),
    radial-gradient(circle at bottom right, rgba(0, 166, 81, 0.11), transparent 28rem),
    linear-gradient(180deg, var(--background-warm), var(--background));
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
code { font-size: 0.95em; }
.app-shell { width: min(980px, calc(100% - 40px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; }
.logo, .nav-links { display: flex; align-items: center; }
.logo { gap: 10px; color: var(--text-strong); font-weight: 800; letter-spacing: -0.02em; }
.logo-mark { display: inline-grid; width: 36px; height: 36px; place-items: center; border-radius: 999px; background: var(--accent); color: var(--surface); box-shadow: 0 12px 28px rgba(0, 132, 61, 0.28); }
.nav-links { gap: 18px; color: var(--muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--accent-strong); }
.hero { padding: 30px 0 22px; }
.compact-hero { padding-top: 26px; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 850px; margin-bottom: 18px; color: var(--text-strong); font-size: clamp(3rem, 8vw, 6rem); line-height: 0.9; letter-spacing: -0.08em; }
h2 { margin-bottom: 16px; color: var(--text-strong); font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1; letter-spacing: -0.06em; }
.hero-copy { max-width: 640px; color: var(--muted); font-size: clamp(1rem, 2vw, 1.2rem); line-height: 1.65; }
.tracker-panel, .panel, .route-card, .status-card, .status-hero { border: 1px solid var(--line); background: rgba(255, 255, 255, 0.92); box-shadow: var(--shadow); backdrop-filter: blur(18px); }
.tracker-panel, .panel { margin-bottom: 28px; border-radius: 28px; padding: 24px; }
.focused-tracker { display: grid; gap: 18px; }
.route-card, .status-card, .status-hero { border-radius: 22px; padding: 24px; }
.main-route-card { border-top: 8px solid var(--accent); }
.route-line { display: flex; align-items: baseline; gap: 14px; color: var(--text-strong); font-size: clamp(1.9rem, 5vw, 3.9rem); font-weight: 800; letter-spacing: -0.07em; line-height: 1; white-space: nowrap; }
.route-line strong { flex: 0 0 auto; color: var(--accent); }
.route-subtitle, .status-card p, .api-status, .live-details, details p { color: var(--muted); line-height: 1.6; }
.status-hero { display: grid; gap: 12px; text-align: left; border-left: 8px solid var(--accent); }
.big-status { color: var(--text-strong); font-size: clamp(2.8rem, 10vw, 7rem); font-weight: 800; letter-spacing: -0.08em; line-height: 0.9; }
.status-hero.checking .big-status { color: var(--accent); }
.status-hero.on-time .big-status { color: var(--success); }
.status-hero.delayed .big-status { color: var(--danger); }
.status-hero.error .big-status { color: var(--danger); }
.status-hero.not-checked .big-status { color: var(--warning); }
.status-message { margin-bottom: 6px; }
.summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.status-card { background: linear-gradient(180deg, #ffffff, #f3faf5); }
.status-card span { display: block; margin-bottom: 8px; color: var(--text-strong); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.05em; }
.single-train-form { margin-top: 4px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; border: 0; border-radius: 999px; padding: 0 22px; cursor: pointer; font-weight: 800; transition: transform 180ms ease, background 180ms ease, border-color 180ms ease; }
.button:hover { transform: translateY(-2px); }
.primary { background: var(--accent); color: var(--surface); box-shadow: 0 14px 32px rgba(0, 132, 61, 0.22); }
.details-panel { margin-bottom: 64px; }
details summary { cursor: pointer; color: var(--text-strong); font-weight: 800; }
.live-details { margin-top: 16px; border: 1px dashed rgba(0, 132, 61, 0.26); border-radius: 18px; padding: 16px; background: rgba(223, 242, 231, 0.72); overflow-x: auto; }
.live-details:empty { display: none; }
@media (max-width: 850px) {
  .app-shell { width: min(100% - 28px, 980px); }
  .site-header { align-items: center; flex-direction: row; padding: 18px 0; }
  .nav-links { flex-wrap: nowrap; margin-left: auto; }
  .hero { padding: 14px 0 14px; }
  .compact-hero { padding-top: 14px; }
  h1 { margin-bottom: 10px; letter-spacing: -0.06em; font-size: clamp(2.7rem, 12vw, 4.6rem); }
  .hero-copy { font-size: 1rem; line-height: 1.45; }
  .tracker-panel { gap: 10px; padding: 12px; border-radius: 24px; }
  .route-card, .status-hero, .status-card { border-radius: 18px; padding: 14px; }
  .main-route-card { border-top-width: 6px; }
  .eyebrow { margin-bottom: 8px; font-size: 0.68rem; }
  .route-line { display: flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap; font-size: clamp(1rem, 4.3vw, 1.35rem); letter-spacing: -0.05em; }
  .route-line span { min-width: 0; }
  .route-line strong { transform: none; font-size: 1.1rem; }
  .status-hero { gap: 8px; border-left-width: 6px; }
  .big-status { font-size: clamp(2.4rem, 13vw, 4rem); }
  .status-message { margin: 0; font-size: 0.95rem; line-height: 1.35; }
  .summary-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .status-card { display: flex; min-height: 96px; flex-direction: column; align-items: center; justify-content: center; padding: 10px 6px; text-align: center; }
  .status-card span { margin-bottom: 10px; font-size: clamp(1.05rem, 5vw, 1.45rem); letter-spacing: -0.04em; line-height: 1; }
  .status-card p { margin: 0; font-size: 0.72rem; line-height: 1.2; text-align: center; }
  .button { width: 100%; }
  .details-panel { margin-bottom: 36px; padding: 12px 16px; border-radius: 18px; }
}
@media (max-width: 370px) {
  .route-line { font-size: 0.92rem; gap: 6px; }
  .summary-grid { grid-template-columns: 1fr; }
  .status-card span { font-size: 1.35rem; }
  .status-card p { font-size: 0.8rem; }
}