/* ---------- tokens ---------- */
:root {
  --bg: #0c0d0f; --surface: #16181b; --surface-2: #1d2024; --line: #2a2d31;
  --fg: #f2f2ee; --muted: #8b9096; --faint: #5b6066;
  --accent: #ffcc00; --on-accent: #0c0d0f; --accent-text: #ffcc00;
  --ok: #3ecf72; --warn: #ffb020; --bad: #ff5a4e;
  --walk: #5b6066; --bus: #dc241f;
  --ui: "Inter", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --radius: 16px;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f3f3f0; --surface: #ffffff; --surface-2: #f7f7f4; --line: #dedfdb;
    --fg: #111214; --muted: #62666c; --faint: #a3a6aa;
    --accent-text: #8a6500;
    --ok: #1d8a4a; --warn: #a86500; --bad: #c8321f;
    --walk: #a3a6aa;
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #f3f3f0; --surface: #ffffff; --surface-2: #f7f7f4; --line: #dedfdb;
  --fg: #111214; --muted: #62666c; --faint: #a3a6aa;
  --accent-text: #8a6500;
  --ok: #1d8a4a; --warn: #a86500; --bad: #c8321f;
  --walk: #a3a6aa;
  color-scheme: light;
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--ui); font-size: 15px; line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; color: inherit; }
button { cursor: pointer; -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.label {
  font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); margin: 0;
}
.h1 { font-size: 28px; font-weight: 700; letter-spacing: -.02em; margin: 8px 0 6px; }
.h2 { font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 28px 0 10px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 12px 0; }

.app {
  max-width: 560px; margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 8px) 16px calc(env(safe-area-inset-bottom) + 96px);
}

/* ---------- header ---------- */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0 14px; }
.date { font-size: 13px; font-weight: 700; letter-spacing: .14em; color: var(--accent-text); }
.seg-who button { padding: 6px 12px; font-size: 14px; }
body:not([data-tab="today"]) .seg-who { display: none; }

/* ---------- route header: from → to, with a swap button ---------- */
.route { display: flex; align-items: center; gap: 12px; margin: 4px 0 14px; }
.route-end { display: flex; flex-direction: column; min-width: 0; }
.route-from { border: 0; background: none; padding: 0; text-align: left; border-radius: 8px; }
.route-from .route-sub { display: flex; align-items: center; gap: 3px; }
.pin { width: 12px; height: 12px; flex: none; fill: none; stroke: currentColor; stroke-width: 2.2; }
.route-from[aria-pressed="true"] .route-place, .route-from[aria-pressed="true"] .route-sub { color: var(--accent-text); }
.route-to { text-align: right; }
.route-place { font-size: 24px; font-weight: 700; letter-spacing: -.01em; text-transform: uppercase; line-height: 1.1; }
.route-sub { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.route-line { flex: 1; min-width: 24px; height: 2px; background: var(--faint); position: relative; margin-bottom: 14px; }
.route-line::after {
  content: ""; position: absolute; right: -2px; top: -5px;
  border: 6px solid transparent; border-right: 0; border-left: 8px solid var(--faint);
}
.swap {
  flex: none; width: 44px; height: 44px; border-radius: 12px; margin-bottom: 14px;
  border: 1px solid var(--line); background: var(--surface); display: grid; place-items: center;
}
.swap svg { width: 20px; height: 20px; fill: none; stroke: var(--fg); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s; }
.swap.flipped svg { transform: rotate(180deg); }

/* ---------- segmented controls ---------- */
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 2px; }
.seg button {
  border: 0; background: transparent; color: var(--muted); border-radius: 7px;
  padding: 6px 11px; font-size: 13px; font-weight: 600; white-space: nowrap;
}
.seg button.on { background: var(--surface-2); color: var(--fg); box-shadow: 0 0 0 1px var(--line) inset; }
.statusline { font-size: 13px; color: var(--muted); margin: 0 0 12px; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.statusline .stale { color: var(--warn); }

/* ---------- hero card ---------- */
.hero {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 18px 16px; overflow: hidden;
}
.hero::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--accent); }
.hero.past::before { background: var(--faint); }
.hero-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; margin-top: 4px; }
.bigtime { font-family: var(--mono); font-weight: 700; font-size: clamp(56px, 18vw, 76px); line-height: .95; letter-spacing: -.03em; }
.hero-side { text-align: right; }
.midtime { font-family: var(--mono); font-weight: 700; font-size: 26px; line-height: 1.1; }
.sub { font-size: 13px; color: var(--muted); margin-top: 2px; }
.countdown { color: var(--accent-text); font-weight: 600; }
.past .countdown { color: var(--warn); }

/* route strip: one segment per leg, width proportional to duration */
.strip { display: flex; gap: 2px; margin: 18px 0 4px; }
.seg-leg { min-width: 14px; display: flex; flex-direction: column; gap: 6px; }
.seg-leg .bar { height: 12px; border-radius: 4px; background: var(--c, var(--muted)); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--fg) 16%, transparent); }
/* keeps dark line colours (Northern is black) visible on the dark surface */
.seg-leg.walk .bar { background: none; box-shadow: none; border-top: 3px dotted var(--walk); height: 0; margin-top: 4.5px; margin-bottom: 4.5px; border-radius: 0; }
.seg-leg .name { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seg-leg.walk .name { color: var(--muted); font-weight: 500; }
.seg-leg .name small { color: var(--muted); font-weight: 500; font-family: var(--mono); font-size: 11px; margin-left: 3px; }
.strip.mini { margin: 0; flex: 1; min-width: 0; }
.strip.mini .seg-leg { min-width: 4px; }
.strip.mini .bar { height: 8px; }
.strip.mini .walk .bar { height: 0; margin: 3px 0; border-top-width: 2px; }

.facts { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 6px; }
.fact { font-size: 14px; display: flex; gap: 8px; align-items: baseline; }
.fact .why { color: var(--muted); font-size: 13px; }
.dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: currentColor; transform: translateY(-1px); }
.ok { color: var(--ok); } .warn { color: var(--warn); } .bad { color: var(--bad); }
.fact > span:last-child { color: var(--fg); }

/* typical busyness per boarding / interchange station */
.busy { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.busy-list { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 8px; }
.busy-row { display: grid; grid-template-columns: 1fr auto 61px 74px; align-items: center; gap: 10px; font-size: 14px; }
.busy-name { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.busy-time { font-size: 12px; color: var(--muted); }
.busy-spark { width: 61px; height: 22px; display: block; }
.busy-spark rect { fill: var(--faint); }
.busy-spark rect.now { fill: currentColor; }
.busy-spark rect.now.ok { fill: var(--ok); } .busy-spark rect.now.warn { fill: var(--warn); } .busy-spark rect.now.bad { fill: var(--bad); }
.busy-lvl { font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 6px; justify-self: end; }
.busy-lvl > :last-child, .busy-lvl { white-space: nowrap; }
.busy-none { grid-column: 3 / -1; justify-self: end; font-size: 13px; color: var(--muted); }
.busy .hint { margin-top: 10px; }
.live { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.live-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.linkbtn { border: 0; background: none; padding: 4px 0; white-space: nowrap; flex: none; font-size: 13px; font-weight: 600; color: var(--accent-text); }
.linkbtn:disabled { color: var(--muted); }
.plat { margin-top: 8px; }
.plat-name { font-size: 12px; color: var(--muted); }
.trains { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0; }
.train {
  font-family: var(--mono); font-weight: 700; font-size: 18px; padding: 4px 10px;
  border-radius: 8px; background: var(--surface-2); border: 1px solid var(--line);
}
.train small { font-size: 12px; color: var(--muted); font-weight: 500; margin-left: 1px; }
.train.first { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.train.first small { color: var(--on-accent); opacity: .7; }
.note { font-size: 13px; margin: 4px 0 0; }
.hint { font-size: 13px; color: var(--muted); margin: 0; }

/* ---------- alternatives & other lines ---------- */
.alts { margin-top: 18px; }
.alt {
  width: 100%; display: grid; grid-template-columns: 52px minmax(0, 1fr) 42px; align-items: center; column-gap: 12px; row-gap: 6px;
  text-align: left; background: transparent; border: 0; border-bottom: 1px solid var(--line); padding: 12px 2px;
}
.alt-meta { grid-column: 2 / -1; display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 12px; color: var(--muted); }
.alt-meta > span { display: inline-flex; align-items: center; gap: 5px; }
.alt:last-child { border-bottom: 0; }
.alt .t { font-family: var(--mono); font-weight: 700; font-size: 17px; width: 52px; flex: none; }
.alt .d { font-family: var(--mono); font-size: 13px; color: var(--muted); width: 42px; text-align: right; flex: none; }
.others { margin-top: 14px; font-size: 13px; color: var(--muted); }
.others summary { cursor: pointer; padding: 6px 0; list-style: none; }
.others summary::-webkit-details-marker { display: none; }
.others summary::before { content: "▸ "; }
.others[open] summary::before { content: "▾ "; }
.others .fact { font-size: 13px; }

.empty {
  background: var(--surface); border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 22px 18px; text-align: left;
}
.empty h2 { font-size: 20px; margin: 0 0 6px; letter-spacing: -.01em; }
.empty p { margin: 0 0 14px; color: var(--muted); }
.err { color: var(--bad); }

/* ---------- buttons ---------- */
.btn {
  border: 1px solid var(--line); background: var(--surface); border-radius: 12px;
  padding: 0 16px; height: 48px; font-size: 15px; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
.btn:disabled { opacity: .55; cursor: default; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-ghost { background: transparent; }
.btn-small { height: 38px; font-size: 14px; padding: 0 13px; border-radius: 10px; }
.btn-xl { height: 64px; font-size: 20px; border-radius: 16px; }
.btn.danger { color: var(--bad); }
.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.spin { width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- trip in progress ---------- */
#view-trip { padding-top: 24px; }
.timer { font-size: clamp(72px, 26vw, 112px); font-weight: 700; letter-spacing: -.04em; line-height: 1; margin: 10px 0 18px; }
.progress { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; }
.progress-bar { height: 100%; width: 0; background: var(--accent); border-radius: 3px; transition: width .6s; }
.progress-bar.over { background: var(--warn); }
.trip-meta { color: var(--muted); font-size: 14px; margin: 12px 0 0; }
.trip-hint { margin-top: 18px; }
.trip-actions { display: grid; gap: 10px; margin-top: 32px; }

/* ---------- trips ---------- */
.tiles { display: grid; gap: 10px; }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.tile-big { font-family: var(--mono); font-size: 34px; font-weight: 700; letter-spacing: -.02em; margin-top: 4px; }
.tile-big small { font-family: var(--ui); font-size: 13px; color: var(--muted); font-weight: 500; letter-spacing: 0; margin-left: 4px; }
.tile-sub { font-size: 13px; color: var(--muted); }
.tile-sub b { color: var(--fg); font-weight: 600; }
.spark { display: block; width: 100%; height: 56px; margin-top: 10px; overflow: visible; }
.spark .b { fill: var(--muted); }
.spark .b.last { fill: var(--fg); }
.spark .hit:hover + .b, .spark .hit:focus + .b { fill: var(--accent); }
.spark .plan { stroke: var(--accent-text); stroke-width: 1.5; stroke-dasharray: 3 3; }
.spark .base { stroke: var(--line); stroke-width: 1; }
.trip-list { list-style: none; margin: 0; padding: 0; }
.trip-row { display: flex; align-items: center; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.trip-row .main { flex: 1; min-width: 0; }
.trip-row .when { font-size: 14px; font-weight: 600; }
.trip-row .via { font-size: 13px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.trip-row .mins { font-family: var(--mono); font-weight: 700; font-size: 16px; text-align: right; }
.trip-row .mins small { color: var(--muted); font-weight: 500; font-size: 12px; display: block; }
.x { border: 0; background: none; color: var(--muted); font-size: 20px; width: 32px; height: 32px; border-radius: 8px; }

/* ---------- setup ---------- */
.group { margin-top: 4px; }
.field { display: block; margin: 12px 0; }
.field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.field-pair .field { margin: 0; }
input[type=text], input[type=password], input[type=time] {
  width: 100%; height: 46px; padding: 0 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); font-size: 16px; /* 16px stops iOS zooming */
}
input:focus-visible, button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.inline { display: flex; gap: 8px; }
.inline input { flex: 1; min-width: 0; }
.inline .btn { height: 46px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line); background: transparent; border-radius: 999px;
  padding: 8px 13px; font-size: 14px; font-weight: 500; color: var(--muted);
  display: inline-flex; align-items: center; gap: 7px;
}
.chip i { width: 10px; height: 10px; border-radius: 3px; background: var(--c); display: inline-block; opacity: .45; }
.chip.on { color: var(--fg); border-color: var(--fg); }
.chip.on i { opacity: 1; }
.routes-person { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 4px 14px 14px; margin: 10px 0; }
.routes-person h3 { font-size: 15px; margin: 12px 0 8px; }
.saved-routes { list-style: none; margin: 0 0 10px; padding: 0; }
.saved-routes li { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 14px; font-weight: 600; }
.route-results { margin-top: 10px; }
.route-pick { display: grid; gap: 10px; font-size: 14px; }
.route-pick select { height: 42px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-2); color: var(--fg); font: inherit; font-size: 16px; padding: 0 10px; }
.route-pick .row { margin: 0; }
.alt-via { color: var(--fg); font-weight: 600; }
.stale-note { color: var(--warn); font-weight: 600; }
.advanced summary { cursor: pointer; list-style: none; }
.advanced summary::-webkit-details-marker { display: none; }
.advanced summary::after { content: " +"; }
.advanced[open] summary::after { content: " −"; }
.steps { display: flex; gap: 6px; margin: 14px 0 0; }
.steps span { flex: 1; height: 4px; border-radius: 2px; background: var(--line); }
.steps span.on { background: var(--accent); }
.step-nav { display: grid; grid-template-columns: 1fr 2fr; gap: 10px; margin-top: 24px; }
body.onboarding .tabs, body.onboarding .seg-who, body.on-trip .seg-who { display: none; }
body.onboarding .group:not(.current) { display: none; }
body.onboarding .advanced { display: none; }

/* ---------- footer, tabs, toast ---------- */
.foot { margin-top: 36px; font-size: 11px; color: var(--faint); }
.tabs {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  display: flex; justify-content: center; gap: 4px;
  padding: 8px 16px calc(env(safe-area-inset-bottom) + 8px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}
.tabs a {
  flex: 1; max-width: 140px; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 6px 0; text-decoration: none; color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: .04em;
  border-radius: 10px;
}
.tabs svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tabs a.active { color: var(--fg); }
.tabs a.active svg { stroke: var(--accent-text); }
.toast {
  position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom) + 84px); transform: translate(-50%, 12px);
  background: var(--fg); color: var(--bg); padding: 9px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 20; white-space: nowrap;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (max-width: 360px) {
  .seg button { padding: 6px 8px; }
}