:root {
  --bg: #f4f1ea;
  --card: #ffffff;
  --ink: #1f2a33;
  --ink-soft: #5b6672;
  --accent: #1e405c;
  --accent-soft: #e4ecf1;
  --good: #2f7a4f;
  --good-soft: #e3f1e8;
  --warn: #9a5b12;
  --warn-soft: #f2e6d8;
  --bad: #9a2f2f;
  --bad-soft: #f3e3e3;
  --line: #e3ddd0;
  --radius: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "PingFang TC", "Noto Sans TC", "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

body {
  padding: env(safe-area-inset-top) 16px env(safe-area-inset-bottom);
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
}

header.top {
  padding: 18px 0 10px;
  text-align: center;
}

header.top h1 {
  font-size: 1.15rem;
  margin: 0 0 4px;
  font-weight: 600;
  color: var(--accent);
}

header.top .today-target {
  font-size: 0.92rem;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

header.top .today-target b {
  color: var(--ink);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.toolbar button {
  border: none;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 600;
}

.updated-at {
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.dir-switch {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.dir-switch .dir-btn {
  flex: 1;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 9px 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.dir-switch .dir-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.notice {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.notice.holiday {
  background: #f2e6d8;
  color: var(--warn);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 10px;
  overflow: hidden;
}

.card.rank-1 {
  border: 2px solid var(--accent);
  box-shadow: 0 2px 10px rgba(30, 64, 92, 0.14);
  padding: 11px 13px;
}

.card.card-dim {
  opacity: 0.5;
}

.card.card-backup {
  opacity: 0.78;
}

.opt-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.backup-tag {
  font-size: 0.64rem;
  font-weight: 700;
  color: var(--ink-soft);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 1px 7px;
}

.card .row-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}

.card .row-top-left,
.card .row-top-right {
  display: flex;
  flex-direction: column;
}

.card .row-top-right {
  align-items: flex-end;
}

.card .opt-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-bottom: 2px;
}

.card .leave-by {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--accent);
}

.card .leave-by.status-tight { color: var(--warn); }
.card .leave-by.status-late { color: var(--bad); }

.card .leave-sub {
  font-size: 0.72rem;
  color: var(--ink-soft);
  margin-top: 1px;
}

.status-pill {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 3px 10px;
}

.status-pill.status-ok { background: var(--good-soft); color: var(--good); }
.status-pill.status-tight { background: var(--warn-soft); color: var(--warn); }
.status-pill.status-late { background: var(--bad-soft); color: var(--bad); }

.card .arrive-line {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 4px;
}

/* trip strip */
.trip-strip {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-bottom: 4px;
  width: 100%;
}

.trip-arrow {
  flex: 0 0 auto;
  width: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.trip-seg {
  min-width: 50px;
  background: color-mix(in srgb, var(--seg-color) 12%, white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 6px;
  text-align: center;
  overflow: hidden;
}

.seg-icon-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 0.9rem;
  line-height: 1;
}

.seg-tag {
  font-size: 0.55rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 1px 4px;
  line-height: 1.3;
  white-space: nowrap;
}

.seg-tag.live { background: var(--good-soft); color: var(--good); }
.seg-tag.est { background: var(--accent-soft); color: var(--accent); }

.seg-minutes {
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--ink);
  margin-top: 2px;
  white-space: nowrap;
}

.seg-place {
  font-size: 0.68rem;
  color: var(--ink-soft);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.seg-bike-counts {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 2px;
}

.seg-bike-line {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--good);
  white-space: nowrap;
  line-height: 1.3;
}

.seg-bike-line.low {
  color: var(--bad);
}

/* collapsed detail row */
.detail-collapse {
  margin-top: 2px;
}

.detail-collapse summary {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.detail-collapse summary::-webkit-details-marker {
  display: none;
}

.detail-collapse summary::after {
  content: " ▾";
}

.detail-collapse[open] summary::after {
  content: " ▴";
}

.detail-collapse .detail-line {
  font-size: 0.8rem;
  color: var(--ink);
  line-height: 1.5;
  margin-top: 6px;
}

.error-line {
  color: var(--bad);
  font-size: 0.85rem;
}

/* settings modal */
dialog#settings {
  border: none;
  border-radius: var(--radius);
  padding: 18px;
  width: min(92vw, 420px);
  color: var(--ink);
}

dialog#settings h2 {
  margin-top: 0;
  font-size: 1.05rem;
  color: var(--accent);
}

dialog#settings label {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: 12px;
}

dialog#settings input[type="time"],
dialog#settings input[type="number"] {
  width: 100%;
  padding: 8px;
  margin-top: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
}

dialog#settings .weekday-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

dialog#settings .weekday-row span {
  width: 56px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

dialog#settings .actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

dialog#settings button {
  border: none;
  border-radius: 10px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
}

dialog#settings button.primary {
  background: var(--accent);
  color: white;
}

dialog#settings button.secondary {
  background: var(--accent-soft);
  color: var(--accent);
}

.keygate {
  text-align: center;
  padding: 40px 20px;
  color: var(--ink-soft);
}

footer.meta {
  text-align: center;
  font-size: 0.72rem;
  color: var(--ink-soft);
  padding: 20px 0 30px;
  line-height: 1.6;
}