/* Clockrow - printed-timetable palette. Warm paper, one ink, one vermilion. */

:root {
  --paper:      oklch(97.5% 0.008 85);
  --paper-sunk: oklch(94.5% 0.010 85);
  --ink:        oklch(24% 0.012 85);
  --ink-soft:   oklch(47% 0.010 85);
  --ink-faint:  oklch(66% 0.008 85);
  --rule:       oklch(87% 0.009 85);
  --rule-hard:  oklch(72% 0.010 85);
  --accent:     oklch(56% 0.191 32);
  --accent-dim: oklch(56% 0.191 32 / 0.14);

  --band-deep:  oklch(41% 0.052 253);
  --band-night: oklch(56% 0.050 253);
  --band-edge:  oklch(76% 0.082 62);
  --band-day:   oklch(93% 0.040 92);

  --row-h: 2.25rem;
  --label-w: 11.5rem;
  --measure: 68ch;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      oklch(20% 0.011 85);
    --paper-sunk: oklch(25% 0.012 85);
    --ink:        oklch(93% 0.008 85);
    --ink-soft:   oklch(72% 0.009 85);
    --ink-faint:  oklch(52% 0.008 85);
    --rule:       oklch(33% 0.011 85);
    --rule-hard:  oklch(45% 0.012 85);
    --accent:     oklch(68% 0.165 34);
    --accent-dim: oklch(68% 0.165 34 / 0.18);

    --band-deep:  oklch(28% 0.048 253);
    --band-night: oklch(38% 0.048 253);
    --band-edge:  oklch(56% 0.078 62);
    --band-day:   oklch(72% 0.038 92);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

.shell { max-width: 62rem; margin: 0 auto; padding: 0 1.5rem; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--paper);
  color: var(--accent);
  padding: 0.6rem 1rem;
  z-index: 10;
}

.skip:focus { left: 1rem; top: 1rem; }

/* ---------- masthead ---------- */

.masthead {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 2.25rem 0 0.75rem;
  border-bottom: 2px solid var(--ink);
}

.wordmark {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.022em;
  margin: 0;
}

.wordmark a { color: inherit; text-decoration: none; }

.wordmark b { color: var(--accent); font-weight: 700; }

.masthead p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.875rem;
  letter-spacing: 0.01em;
}

.masthead nav {
  margin-left: auto;
  display: flex;
  gap: 1.125rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.masthead nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.masthead nav a:hover,
.masthead nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.lang {
  display: inline-flex;
  gap: 0.5rem;
  align-items: baseline;
  padding-left: 1.125rem;
  border-left: 1px solid var(--rule-hard);
}

.lang a[aria-current="true"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* ---------- board ---------- */

.board { padding: 1.75rem 0 0.5rem; }

.board-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
}

.board-head h2 {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  flex: 0 0 auto;
}

.readout {
  font-size: 0.9375rem;
  color: var(--ink-soft);
  text-align: right;
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
}

.readout strong { color: var(--accent); font-weight: 600; }

.grid { overflow-x: auto; }

.grid-inner { min-width: 34rem; }

.ruler {
  display: grid;
  grid-template-columns: var(--label-w) 1fr;
  align-items: end;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--rule-hard);
}

.ruler > span:first-child {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.ticks {
  display: grid;
  grid-template-columns: repeat(24, 1fr);
  font-size: 0.6875rem;
  color: var(--ink-faint);
}

.ticks i { font-style: normal; text-align: left; padding-left: 1px; }

.ticks i:nth-child(odd) { visibility: hidden; }

.row {
  display: grid;
  grid-template-columns: var(--label-w) 1fr;
  align-items: center;
  border-bottom: 1px solid var(--rule);
}

.row:hover { background: var(--paper-sunk); }

.row-label { padding: 0 0.75rem 0 0; min-width: 0; }

.row-label .city {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.005em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-label .meta { display: block; font-size: 0.75rem; color: var(--ink-faint); }

.strip {
  position: relative;
  display: grid;
  grid-template-columns: repeat(24, 1fr);
  height: var(--row-h);
  border-left: 1px solid var(--rule-hard);
}

.cell {
  position: relative;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  cursor: pointer;
  background: var(--band-deep);
  transition: filter 140ms var(--ease);
}

.cell[data-band="night"] { background: var(--band-night); }
.cell[data-band="edge"]  { background: var(--band-edge); }
.cell[data-band="day"]   { background: var(--band-day); }

.cell[data-work="yes"]::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: var(--ink);
  opacity: 0.55;
}

.cell:hover { filter: brightness(1.08); }

.cell:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  z-index: 2;
}

.cell[aria-pressed="true"] {
  box-shadow: inset 0 0 0 2px var(--accent);
  z-index: 1;
}

.nowline {
  position: absolute;
  top: -2px;
  bottom: -2px;
  width: 2px;
  background: var(--accent);
  pointer-events: none;
  z-index: 3;
}

.nowline::before {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  transform: rotate(45deg);
}

/* ---------- picker ---------- */

.picker {
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--rule);
  margin-top: 0.25rem;
}

.picker h2 {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 0 0 0.85rem;
}

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.chip {
  font: inherit;
  font-size: 0.8125rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--rule-hard);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 2px;
  transition: color 140ms var(--ease), border-color 140ms var(--ease), background 140ms var(--ease);
}

.chip:hover { color: var(--ink); border-color: var(--ink-faint); }

.chip[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin-top: 1.25rem;
  font-size: 0.75rem;
  color: var(--ink-faint);
}

.legend span { display: inline-flex; align-items: center; gap: 0.4rem; }

.legend i { width: 1.15rem; height: 0.6rem; display: inline-block; }

.sw-deep  { background: var(--band-deep); }
.sw-night { background: var(--band-night); }
.sw-edge  { background: var(--band-edge); }
.sw-day   { background: var(--band-day); }
.sw-work  { background: var(--ink); opacity: 0.55; height: 3px; }

/* ---------- prose pages ---------- */

.prose { padding: 2.5rem 0 3rem; max-width: var(--measure); }

.prose h1 {
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 0.4rem;
}

.prose .standfirst {
  font-size: 1.0625rem;
  color: var(--ink-soft);
  margin: 0 0 2rem;
}

.prose h2 {
  font-size: 1.0625rem;
  letter-spacing: -0.008em;
  margin: 2.25rem 0 0.6rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--rule);
}

.prose p { margin: 0 0 1rem; }

.prose ul { margin: 0 0 1rem; padding-left: 1.1rem; }
.prose li { margin-bottom: 0.4rem; }

.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875em;
  background: var(--paper-sunk);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}

.prose a { color: var(--accent); text-underline-offset: 0.18em; }

.note {
  border: 1px solid var(--rule-hard);
  padding: 0.9rem 1.1rem;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  background: var(--paper-sunk);
}

.note b { color: var(--ink); }

/* ---------- 404 ---------- */

.lost { padding: 5rem 0 6rem; text-align: center; }

.lost .code {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

.lost h1 { font-size: 1.75rem; letter-spacing: -0.02em; margin: 0 0 0.6rem; }

.lost p { color: var(--ink-soft); margin: 0 0 1.75rem; }

.lost a { color: var(--accent); }

/* ---------- footer ---------- */

.colophon {
  border-top: 2px solid var(--ink);
  padding: 1.1rem 0 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
  font-size: 0.8125rem;
  color: var(--ink-faint);
}

.colophon nav { display: flex; gap: 1.25rem; }
.colophon a { color: var(--ink-soft); text-decoration: none; }
.colophon a:hover { color: var(--accent); }
.colophon .rule { margin-left: auto; }

.noscript {
  border: 1px solid var(--accent);
  padding: 0.8rem 1rem;
  margin: 1.5rem 0 0;
  font-size: 0.9375rem;
}

@media (max-width: 46rem) {
  :root { --label-w: 8rem; --row-h: 2rem; }
  .masthead { padding-top: 1.5rem; }
  .masthead nav { margin-left: 0; width: 100%; }
  .board-head { flex-direction: column; gap: 0.35rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 1ms !important; }
}