:root {
  --bg: #0f1216;
  --bg2: #161b22;
  --card: #1a2029;
  --card2: #202836;
  --line: #2a3444;
  --text: #e8edf4;
  --text2: #9aa7b8;
  --accent: #4da3ff;
  --red: #e2001a;
  --green: #35c46f;
  --warn: #ffb020;
  --radius: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}

body {
  padding-bottom: env(safe-area-inset-bottom);
}

h1 { font-size: 18px; margin: 0; font-weight: 700; letter-spacing: .02em; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px calc(10px);
  padding-top: calc(10px + env(safe-area-inset-top));
  background: rgba(15, 18, 22, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 8px; }
.brand-icon { color: var(--accent); display: flex; }
.brand-sub { color: var(--text2); font-size: 12px; margin-top: 2px; }

.topbar-right { display: flex; align-items: center; gap: 6px; }
.updated { font-size: 11.5px; color: var(--text2); white-space: nowrap; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  flex: none;
}
.icon-btn:active { background: var(--card2); }

/* ---------- tabs ---------- */
.tabs {
  position: sticky;
  top: calc(59px + env(safe-area-inset-top));
  z-index: 25;
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(15, 18, 22, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.tab {
  flex: 1;
  padding: 9px 6px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--text2);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.tab.active {
  background: var(--card);
  color: var(--text);
  border-color: var(--line);
}

/* ---------- panes ---------- */
.pane { padding: 10px 12px 90px; }

.station-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
  padding: 2px;
}
.chips::-webkit-scrollbar { display: none; }

.chips button, .chip {
  flex: none;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text2);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.chips button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #071018;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.filter-chips button { font-size: 12px; padding: 6px 11px; }

/* ---------- switch ---------- */
.switch { display: inline-flex; align-items: center; gap: 6px; flex: none; cursor: pointer; }
.switch input { display: none; }
.switch-track {
  width: 38px; height: 22px;
  border-radius: 999px;
  background: var(--card2);
  border: 1px solid var(--line);
  position: relative;
  transition: background .15s;
  flex: none;
}
.switch-thumb {
  position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--text2);
  transition: transform .15s, background .15s;
}
.switch input:checked + .switch-track { background: var(--accent); border-color: var(--accent); }
.switch input:checked + .switch-track .switch-thumb { transform: translateX(16px); background: #071018; }
.switch-label { font-size: 12px; color: var(--text2); }

/* ---------- board list ---------- */
.list { display: flex; flex-direction: column; gap: 8px; }

.now-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 6px 2px 2px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
}
.now-divider::before, .now-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}
.now-divider::after { background: linear-gradient(90deg, var(--accent), transparent); }
.now-divider span {
  padding: 2px 10px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: rgba(77, 163, 255, .12);
  white-space: nowrap;
}

.row.past { opacity: .48; }
.row.past .t-main { font-weight: 600; }

.row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 10px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
}

.row .time {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
}
.row .time .t-main { font-size: 19px; font-weight: 700; font-variant-numeric: tabular-nums; }
.row .time .t-main.delayed { color: var(--warn); }
.row .time .t-main.cancelled { color: var(--text2); text-decoration: line-through; }
.row .time .t-sub { font-size: 11px; color: var(--text2); font-variant-numeric: tabular-nums; }
.row .time .t-sub.delayed { color: var(--warn); }

.row .mid { min-width: 0; }
.row .line-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 3px;
}
.row .line-name {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 7px;
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: .02em;
  background: var(--card2);
  border: 1px solid var(--line);
  color: var(--text);
  white-space: nowrap;
}
.row .line-name.prod-nat { background: #5a1010; border-color: #7a1b1b; }
.row .line-name.prod-reg { background: #14324a; border-color: #1d4a6e; }
.row .line-name.prod-s { background: #123c25; border-color: #1c5e3a; }
.row .line-name.prod-wb { background: #043f2e; border-color: #0a7252; color: #7dffce; }
.row .line-name.prod-bus { background: #33270f; border-color: #574116; color: #ffd479; }

.row .operator { font-size: 11px; color: var(--text2); margin-left: 4px; }
.row .target {
  font-size: 14.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.row .target .dir { color: var(--text2); font-weight: 500; }
.row .remark {
  margin-top: 3px;
  font-size: 11.5px;
  color: var(--warn);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.row .right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
}
.row .platform {
  font-size: 12px;
  color: var(--text2);
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 3px 8px;
  white-space: nowrap;
}
.row .platform.changed { color: var(--warn); border-color: var(--warn); }
.row .badge-delay {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--warn);
}
.row .badge-cancelled { font-size: 11.5px; font-weight: 700; color: var(--red); }
.row .chev { color: var(--text2); margin-top: -2px; }

.empty, .offline {
  padding: 26px 16px;
  text-align: center;
  color: var(--text2);
  font-size: 14px;
}
.offline {
  background: #2a1a12;
  border: 1px solid #5a3a1a;
  border-radius: var(--radius);
  margin-bottom: 10px;
  padding: 12px;
  color: #ffc98a;
  font-size: 13px;
}

/* ---------- journey ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 12px;
}

.journey-form { display: flex; flex-direction: column; gap: 6px; }

.station-pick {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.station-pick .pick-label { font-size: 11px; color: var(--text2); font-weight: 600; }
.station-pick .pick-name { font-size: 15.5px; font-weight: 700; }

.swap-row { display: flex; align-items: center; gap: 8px; padding: 0 2px; }
.swap-row .line-h { flex: 1; height: 1px; background: var(--line); }
.swap-row .icon-btn { width: 34px; height: 34px; }

.when-row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 6px; }
.when-row input {
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-size: 14px;
  padding: 9px 10px;
  width: 100%;
  min-width: 0;
}
.when-row input::-webkit-calendar-picker-indicator { filter: invert(.7); }

.when-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  gap: 8px;
}

.btn {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  background: var(--card2);
  color: var(--text);
  cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #071018; }

.section-label { font-size: 12px; color: var(--text2); font-weight: 700; margin: 2px 2px 6px; }

.quick-journeys { margin-bottom: 10px; }

/* journey results */
.journey-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 11px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.journey-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.journey-head .j-times { font-size: 16.5px; font-weight: 800; font-variant-numeric: tabular-nums; }
.journey-head .j-dur { font-size: 12.5px; color: var(--text2); }
.journey-head .j-chg { font-size: 12px; color: var(--text2); background: var(--card2); padding: 2px 8px; border-radius: 7px; }
.journey-head .j-delay { font-size: 12.5px; font-weight: 700; color: var(--warn); }

.leg {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text2);
}
.leg .leg-times { font-variant-numeric: tabular-nums; white-space: nowrap; }
.leg .leg-route { min-width: 0; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); font-weight: 600; }
.leg .line-name { font-size: 11.5px; padding: 2px 7px; white-space: nowrap; }
.leg .leg-plat { font-size: 11.5px; }
.transfer { font-size: 12px; color: var(--text2); padding-left: 4px; }

/* ---------- modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(0, 0, 0, .55);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.modal[hidden] { display: none; }
.modal-sheet {
  width: 100%;
  max-width: 560px;
  max-height: 86vh;
  background: var(--bg2);
  border-radius: 18px 18px 0 0;
  border: 1px solid var(--line);
  border-bottom: none;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-bottom: env(safe-area-inset-bottom);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-weight: 700;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}
.modal-body { padding: 12px 14px 20px; overflow-y: auto; }

#pickerInput {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  margin-bottom: 10px;
}

.fav-box { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.fav-title { font-size: 11.5px; color: var(--text2); font-weight: 700; margin: 6px 2px 2px; }

.pick-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 11px;
  background: var(--card);
  border: 1px solid var(--line);
  cursor: pointer;
  font-size: 14.5px;
}
.pick-item:active { background: var(--card2); }
.pick-item .star {
  margin-left: auto;
  flex: none;
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border: none; background: transparent; color: var(--text2);
  cursor: pointer; border-radius: 8px;
}
.pick-item .star.on { color: var(--warn); }

.trip-info { font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.trip-stops { display: flex; flex-direction: column; }
.trip-stop {
  display: grid;
  grid-template-columns: 58px 1fr auto;
  gap: 8px;
  padding: 8px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.trip-stop:last-child { border-bottom: none; }
.trip-stop .ts-time { font-variant-numeric: tabular-nums; color: var(--text2); }
.trip-stop .ts-time.delayed { color: var(--warn); }
.trip-stop .ts-name { font-weight: 600; }
.trip-stop.current .ts-name { color: var(--accent); }
.trip-stop .ts-plat { color: var(--text2); font-size: 12px; }
.ts-delay { font-size: 11.5px; color: var(--warn); font-weight: 700; }

/* ---------- misc ---------- */
.spinner {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  animation: spin .8s linear infinite;
  margin: 26px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (min-width: 640px) {
  .pane { max-width: 640px; margin: 0 auto; }
}