:root {
  --bg: #0b1220;
  --panel: #121a2a;
  --muted: #7280a7;
  --text: #e8ecff;
  --accent: #7aa2ff;
  --good: #44d17c;
  --warn: #ffcc66;
  --bad: #ff6b6b;
  --grid: #1e2a44;
  --chip: #18223a;
}

* { box-sizing: border-box }

html, body { height: 100% }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
  color: var(--text);
  background: radial-gradient(1200px 600px at 70% -10%, #1b2644, #0b1220);
}

.wrap {
  max-width: 1100px;
  margin: 24px auto;
  padding: 16px;
}

header {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

h1 {
  margin: 0;
  font-weight: 700;
  letter-spacing: .2px;
  font-size: clamp(22px, 3vw, 28px);
}

.sub {
  color: var(--muted);
  font-size: 13px;
}

.panel {
  background: color-mix(in oklab, var(--panel) 86%, black 14%);
  border: 1px solid #243252;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}

.controls {
  padding: 16px;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr auto;
}

.controls .left {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.controls .right {
  display: flex;
  gap: 10px;
  align-items: center;
}

input[type="text"], select, button {
  height: 40px;
  border-radius: 12px;
  border: 1px solid #2a3a60;
  background: #0f1730;
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

input[type="number"] { width: 80px; }

button {
  background: linear-gradient(180deg, #27407a, #1c2c53);
  border: 1px solid #2b447d;
  cursor: pointer;
  font-weight: 600;
}

button:hover { filter: brightness(1.05); }

.tz-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--chip);
  border: 1px solid #203058;
  font-size: 13px;
}

.tz-chip .x {
  cursor: pointer;
  opacity: .8;
}

.gridWrap {
  overflow: auto;
  padding: 12px 12px 16px;
}

.grid {
  min-width: 840px;
  display: grid;
  grid-template-columns: 220px repeat(24, 1fr);
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
  border: 1px solid #213056;
}

.grid .cell {
  border-bottom: 1px solid var(--grid);
  border-right: 1px solid var(--grid);
  padding: 8px;
  text-align: center;
  font-size: 12px;
}

.grid .head {
  position: sticky;
  top: 0;
  background: #101A33;
  z-index: 5;
  font-weight: 700;
}

.city {
  text-align: left;
  white-space: nowrap;
}

.now { background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02)); }
.work { background: rgba(122,162,255,.1); }
.overlap { background: rgba(68, 209, 124, .25); }

.legend {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 0 12px 16px;
  color: var(--muted);
  font-size: 13px;
}

.swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  display: inline-block;
  margin-right: 6px;
  border: 1px solid #2a3a60;
}

.swatch.work { background: rgba(122,162,255,.25); }
.swatch.overlap { background: rgba(68,209,124,.4); }
.swatch.now { background: rgba(255,255,255,.15); }

.footer {
  padding: 12px 16px 18px;
  color: var(--muted);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.linkish {
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 640px) {
  .controls {
    grid-template-columns: 1fr;
  }
  .grid {
    min-width: 720px;
  }
}