:root {
  color-scheme: light;
  --ink: #102437;
  --muted: #5a6b79;
  --line: #dbe7ee;
  --paper: #ffffff;
  --wash: #f4f9fc;
  --brand: #086b7a;
  --brand-dark: #064b58;
  --accent: #e8f7f7;
  --low: #16734b;
  --low-bg: #e7f7ef;
  --moderate: #8a5700;
  --moderate-bg: #fff3d8;
  --high: #a42b35;
  --high-bg: #ffe9eb;
  --shadow: 0 12px 30px rgba(23, 64, 82, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--wash); color: var(--ink); line-height: 1.55; }
a { color: var(--brand-dark); }
button, input { font: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 20; padding: .65rem 1rem; background: var(--ink); color: white; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.site-header { min-height: 4rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; max-width: 72rem; margin: auto; padding: .75rem 1rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; color: var(--ink); text-decoration: none; font-size: 1.08rem; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: .65rem; background: var(--brand); color: white; font-size: .9rem; }
.site-header nav { display: flex; gap: .9rem; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: .86rem; font-weight: 650; }
main { min-height: 70vh; }
.home-hero { padding: 3.4rem 1rem 4rem; text-align: center; background: radial-gradient(circle at 50% 15%, #fff 0, #eef9fc 48%, #e4f2f6 100%); border-block: 1px solid var(--line); }
.home-hero > * { max-width: 48rem; margin-inline: auto; }
.eyebrow { margin: 0 0 .55rem; color: var(--brand); font-size: .75rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { margin: 0; font-size: clamp(2rem, 8vw, 4.4rem); line-height: 1.04; letter-spacing: -.052em; }
h2 { margin: 0; font-size: clamp(1.42rem, 5vw, 2.2rem); line-height: 1.14; letter-spacing: -.035em; }
h3 { margin: 0; font-size: 1rem; }
.hero-copy { margin-top: 1rem; color: var(--muted); font-size: clamp(1rem, 2.8vw, 1.18rem); }
.station-search { position: relative; margin-top: 1.75rem; padding: .9rem; background: rgba(255,255,255,.96); border: 1px solid #cfe0e8; border-radius: 1rem; box-shadow: var(--shadow); text-align: left; }
.station-search label { display: block; margin: 0 0 .55rem .15rem; font-size: .86rem; font-weight: 800; }
.search-control { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; }
.search-control input { min-width: 0; width: 100%; height: 3.2rem; border: 1px solid #b9ccd5; border-radius: .75rem; padding: 0 .9rem; color: var(--ink); background: #fff; }
.search-control input:focus { outline: 3px solid rgba(8,107,122,.18); border-color: var(--brand); }
.search-control button, .fallback-card button { border: 0; border-radius: .75rem; padding: 0 1rem; background: var(--brand); color: white; font-weight: 800; cursor: pointer; }
.search-hint { margin: .55rem .15rem 0; color: var(--muted); font-size: .78rem; }
.search-results { position: absolute; z-index: 10; top: calc(100% - .3rem); left: .9rem; right: .9rem; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: .8rem; box-shadow: var(--shadow); }
.search-option { width: 100%; display: flex; justify-content: space-between; gap: 1rem; padding: .75rem .9rem; border: 0; border-bottom: 1px solid var(--line); background: white; color: var(--ink); text-align: left; cursor: pointer; }
.search-option:last-child { border-bottom: 0; }
.search-option:hover, .search-option[aria-selected="true"] { background: var(--accent); }
.search-option span { color: var(--muted); font-size: .82rem; white-space: nowrap; }
.content-section, .station-page, .legal-page { width: min(100% - 2rem, 68rem); margin-inline: auto; }
.content-section { padding-block: 3rem; }
.section-heading { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1.15rem; }
.section-heading > p { margin: 0; color: var(--muted); }
.quick-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem; }
.quick-card { min-width: 0; display: flex; flex-direction: column; padding: .9rem; border: 1px solid var(--line); border-radius: .85rem; background: var(--paper); color: var(--ink); text-decoration: none; }
.quick-card:hover { border-color: var(--brand); transform: translateY(-1px); }
.quick-card strong { font-size: .95rem; }
.quick-card span { color: var(--muted); font-size: .76rem; }
.explainer { border-top: 1px solid var(--line); }
.feature-grid { display: grid; gap: .7rem; margin-top: 1.25rem; }
.feature-grid article { padding: 1rem; background: var(--paper); border: 1px solid var(--line); border-radius: .9rem; }
.feature-grid p { margin: .35rem 0 0; color: var(--muted); font-size: .9rem; }
.step { display: inline-block; margin-bottom: .7rem; color: var(--brand); font-size: .74rem; font-weight: 850; }
.station-page { padding-block: 1.2rem 3rem; }
.breadcrumb { display: flex; gap: .5rem; margin-bottom: 1.4rem; color: var(--muted); font-size: .78rem; }
.breadcrumb a { color: inherit; }
.station-intro { margin-bottom: 1.2rem; }
.station-intro h1 { font-size: clamp(2rem, 8vw, 3.6rem); }
.station-intro > p:last-of-type { max-width: 45rem; margin: 1rem 0 0; color: var(--muted); }
.line-list { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
.line-pill { display: inline-flex; align-items: center; gap: .45rem; max-width: 100%; padding: .36rem .6rem; background: white; border: 1px solid var(--line); border-left: .28rem solid var(--brand); border-radius: .55rem; }
.line-pill strong { font-size: .78rem; }
.line-pill span { overflow: hidden; color: var(--muted); font-size: .7rem; text-overflow: ellipsis; white-space: nowrap; }
.line-pill[data-line="NSL"] { border-left-color: #d42a2f; }.line-pill[data-line="EWL"], .line-pill[data-line="CGL"] { border-left-color: #168648; }.line-pill[data-line="NEL"] { border-left-color: #7a3aa6; }.line-pill[data-line="CCL"], .line-pill[data-line="CEL"] { border-left-color: #e98018; }.line-pill[data-line="DTL"] { border-left-color: #176eb5; }.line-pill[data-line="TEL"] { border-left-color: #8a6b45; }
.live-panel, .forecast-section { margin-top: .85rem; padding: 1rem; background: var(--paper); border: 1px solid var(--line); border-radius: 1rem; box-shadow: var(--shadow); }
.section-heading.compact { flex-direction: row; align-items: start; justify-content: space-between; gap: .75rem; }
.section-heading.compact h2 { font-size: 1.35rem; }
.live-dot, .time-zone { flex: 0 0 auto; font-size: .69rem; color: var(--muted); }
.live-dot { display: flex; align-items: center; gap: .3rem; }
.live-dot > span { width: .5rem; height: .5rem; background: #20a36a; border-radius: 50%; }
.loading-block { display: flex; align-items: center; gap: .8rem; min-height: 4rem; padding: .7rem; background: var(--wash); border-radius: .75rem; }
.loading-block strong, .loading-block span { display: block; }
.loading-block span:not(.loading-pulse) { color: var(--muted); font-size: .78rem; }
.loading-pulse { flex: 0 0 auto; width: 1.8rem; height: 1.8rem; border: .22rem solid #d7e7ec; border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.current-hero { display: flex; align-items: center; gap: .75rem; padding: .85rem; background: var(--wash); border-radius: .8rem; }
.current-copy { margin: 0; color: var(--muted); font-size: .88rem; }
.status-badge { display: inline-flex; align-items: center; gap: .35rem; width: fit-content; padding: .35rem .58rem; border-radius: 999px; font-size: .78rem; font-weight: 850; white-space: nowrap; }
.status-badge.low { background: var(--low-bg); color: var(--low); }.status-badge.moderate { background: var(--moderate-bg); color: var(--moderate); }.status-badge.high { background: var(--high-bg); color: var(--high); }.status-badge.unavailable, .status-badge.varies { background: #edf2f5; color: #506270; }
.current-lines { display: grid; gap: .55rem; margin-top: .65rem; }
.line-reading { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: .45rem .75rem; padding: .7rem; border: 1px solid var(--line); border-radius: .75rem; }
.line-reading-heading { min-width: 0; display: flex; flex-direction: column; }
.line-reading-heading strong { font-size: .86rem; }.line-reading-heading span { overflow: hidden; color: var(--muted); font-size: .72rem; text-overflow: ellipsis; white-space: nowrap; }
.time-range { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: .72rem; }
.update-note { min-height: 1em; margin: .65rem 0 0; color: var(--muted); font-size: .72rem; }
.line-forecast + .line-forecast { margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.forecast-line-heading { display: flex; align-items: baseline; justify-content: space-between; gap: .75rem; margin-bottom: .65rem; }
.forecast-line-heading h3 { min-width: 0; font-size: .88rem; }.forecast-line-heading span { flex: 0 0 auto; color: var(--muted); font-size: .68rem; }
.timeline-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .45rem; }
.interval-card { min-width: 0; display: flex; flex-direction: column; gap: .35rem; padding: .65rem; border: 1px solid var(--line); border-radius: .7rem; background: var(--wash); }
.interval-card time { font-size: .78rem; font-weight: 800; }
details { margin-top: .65rem; } details summary { width: fit-content; color: var(--brand-dark); font-size: .78rem; font-weight: 750; cursor: pointer; } .timeline-rest { margin-top: .65rem; }
.empty-state { padding: .9rem; background: var(--wash); border-radius: .75rem; }.empty-state p { margin: .25rem 0 0; color: var(--muted); font-size: .82rem; }
.fallback-card { margin-top: .85rem; padding: 1rem; border: 1px solid #e7c86b; border-radius: 1rem; background: #fff9e8; }.fallback-card h2 { font-size: 1.15rem; }.fallback-card p { color: var(--muted); font-size: .85rem; }.fallback-card button { min-height: 2.6rem; }
.crowd-guide { padding-bottom: 1.6rem; }.level-guide { display: grid; gap: .55rem; margin-top: 1rem; }.level-guide > div { padding: .85rem; border: 1px solid var(--line); border-radius: .8rem; background: white; }.level-guide strong { margin-left: .35rem; }.level-guide p { margin: .25rem 0 0; color: var(--muted); font-size: .8rem; }.status-symbol.low { color: var(--low); }.status-symbol.moderate { color: var(--moderate); }.status-symbol.high { color: var(--high); }.plain-note { color: var(--muted); font-size: .78rem; }
.data-note { padding: 1rem; background: #eaf4f7; border-radius: .9rem; }.data-note h2 { font-size: 1rem; }.data-note p { margin: .45rem 0 0; color: var(--muted); font-size: .78rem; }
.station-nav { margin-top: 1.2rem; }.station-nav a, .button-link { font-weight: 750; }
.legal-page { max-width: 46rem; padding-block: 3rem; }.legal-page h1 { font-size: 2.5rem; }.legal-page h2 { margin-top: 1.8rem; font-size: 1.3rem; }.legal-page p { color: var(--muted); }
.site-footer { padding: 2rem 1rem; border-top: 1px solid var(--line); background: white; text-align: center; }.site-footer p { margin: .25rem auto; color: var(--muted); font-size: .75rem; }

@media (min-width: 40rem) {
  .site-header { padding-inline: 1.5rem; }
  .home-hero { padding-block: 5.2rem; }
  .station-search { padding: 1rem; }
  .section-heading { flex-direction: row; align-items: end; justify-content: space-between; }
  .quick-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid, .level-guide { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .station-page { padding-top: 2rem; }
  .live-panel, .forecast-section { padding: 1.25rem; }
  .current-lines { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}