:root {
  color-scheme: light dark;
  --bg: #f6f6f4;
  --fg: #1a1a1a;
  --muted: #6b7280;
  --border: #e5e5e0;
  --accent: #3f7f80;
  --accent-soft: rgba(63, 127, 128, 0.12);
  --danger: #a04040;
  --card-bg: #ffffff;
  --card-shadow: 0 1px 2px rgba(20, 20, 20, 0.04), 0 4px 12px rgba(20, 20, 20, 0.06);
  --card-shadow-pinned: 0 1px 2px rgba(63, 127, 128, 0.08), 0 6px 18px rgba(63, 127, 128, 0.16);
  --chip-bg: #eef1ef;
  --chip-bg-hover: #e2e6e3;
  --input-bg: #ffffff;
  --focus: #3f7f80;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141516;
    --fg: #ececea;
    --muted: #9aa1a6;
    --border: #2a2c2d;
    --accent: #7ab7b8;
    --accent-soft: rgba(122, 183, 184, 0.14);
    --danger: #e18686;
    --card-bg: #1e2021;
    --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 6px 16px rgba(0, 0, 0, 0.45);
    --card-shadow-pinned: 0 1px 2px rgba(122, 183, 184, 0.12), 0 6px 18px rgba(122, 183, 184, 0.20);
    --chip-bg: #24272a;
    --chip-bg-hover: #2d3134;
    --input-bg: #16181a;
    --focus: #7ab7b8;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

main { padding: 0 1.25rem 2.5rem; max-width: 1400px; margin: 0 auto; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem; gap: 1rem;
  border-bottom: 1px solid var(--border);
  max-width: 1400px; margin: 0 auto;
}
.title {
  font-size: 1.15rem; margin: 0;
  font-weight: 600; letter-spacing: -0.01em;
  color: var(--accent);
}
.topbar-actions { display: flex; gap: 0.5rem; }

.btn {
  font: inherit; color: var(--fg);
  background: transparent; border: 1px solid var(--border);
  padding: 0.5rem 0.9rem; border-radius: 0.5rem; cursor: pointer;
  min-height: 40px;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn:hover { background: var(--chip-bg); }
.btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.btn[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.05); background: var(--accent); }

.banner {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem; border-radius: 0.5rem;
  margin: 1rem 0;
  box-shadow: var(--card-shadow);
}

.grid {
  list-style: none; padding: 0; margin: 1.25rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  align-items: start;
}

.card {
  position: relative;
  overflow: hidden;
  background:
    /* dynamic sun flare */
    radial-gradient(circle at calc(var(--sun-x, 50) * 1%) calc(var(--sun-y, 20) * 2.5%),
                    color-mix(in srgb, var(--sky-accent, #FDE047) 18%, transparent) 0%,
                    transparent 45%),
    /* horizon warmth from below — golden hour lingers even after sun sets */
    radial-gradient(ellipse 140% 50% at 50% 108%,
                    rgba(var(--sky-horizon, 220, 220, 230), 0.22),
                    transparent 70%),
    /* atmospheric top wash */
    linear-gradient(178deg,
                    rgba(var(--sky-top, 130, 180, 220), 0.32) 0%,
                    rgba(var(--sky-top, 130, 180, 220), 0.06) 45%,
                    transparent 72%),
    var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem 1.1rem 1.1rem;
  display: flex; flex-direction: column; gap: 0.15rem;
  box-shadow: var(--card-shadow);
  transition: box-shadow 160ms ease, transform 160ms ease, border-color 160ms ease;
}
.card-map {
  display: block;
  width: calc(100% + 2.2rem);
  margin: 1rem -1.1rem -1.1rem -1.1rem;
  aspect-ratio: 2 / 1;
  pointer-events: none;
  z-index: 0;
}
.card-map-land {
  fill: var(--fg);
  opacity: 0.05;
}
.card-map-terminator {
  fill: var(--sky-accent, #fff);
  opacity: 0.12;
  mix-blend-mode: overlay;
}
.card-map-city {
  fill: var(--sky-accent, var(--accent));
  filter: drop-shadow(0 0 3px var(--sky-accent, var(--accent)));
}
.card > * { position: relative; z-index: 1; }
.card > .card-map { z-index: 0; }
.card::before {
  content: "";
  position: absolute; top: 0; left: 0.9rem; right: 0.9rem;
  height: 2px; border-radius: 0 0 2px 2px;
  background: transparent;
  transition: background 160ms ease;
}
.card.pinned {
  border-color: transparent;
  box-shadow: var(--card-shadow-pinned);
}
.card.pinned::before { background: var(--accent); }

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}
.card-head-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.card-name {
  font-weight: 600; font-size: 1.05rem;
  letter-spacing: -0.005em;
  color: var(--fg);
}
.card-sub {
  color: var(--muted); font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-top: 0.05rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cal-tile {
  display: flex; flex-direction: column;
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  overflow: hidden;
  background: var(--bg);
  flex: 0 0 auto;
  box-sizing: border-box;
}
.cal-month {
  background: var(--sky-accent, var(--accent));
  color: #fff;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-align: center;
  height: 13px;
  line-height: 13px;
  text-transform: uppercase;
}
.cal-day {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-align: center;
  height: 29px;
  line-height: 27px;
  font-variant-numeric: tabular-nums;
}
.cal-weekday {
  display: none;
}
.card-time {
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--fg);
}
 
.card-remove {
  background: transparent; border: none; color: var(--muted);
  cursor: pointer; font-size: 1.25rem; line-height: 1;
  width: 44px; height: 44px;
  border-radius: 0.4rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 120ms ease, color 120ms ease;
  flex: 0 0 auto;
}
.card-remove:hover { background: var(--chip-bg); color: var(--danger); }
.card-remove:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.card-time-btn {
  font: inherit; color: inherit; text-align: left;
  background: transparent; border: none; padding: 0;
  cursor: pointer; border-radius: 0.5rem;
  display: flex; flex-direction: row; align-items: center; gap: 0.75rem;
  margin-top: 0.75rem;
  min-height: 44px;
}
.card-time-btn:hover .card-time { color: var(--accent); }
.card-time-btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }

.card > .card-time {
  margin-top: 0.75rem;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.scrub-inputs {
  display: flex; gap: 0.5rem;
  margin: 0.75rem 0 0.25rem;
  flex-wrap: wrap;
}
.scrub-inputs input {
  font: inherit; padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  background: var(--input-bg); color: var(--fg);
  min-height: 40px;
  font-variant-numeric: tabular-nums;
}
.scrub-inputs input:focus-visible {
  outline: 2px solid var(--focus); outline-offset: 1px;
  border-color: var(--accent);
}

.stepper {
  display: flex; align-items: stretch;
  flex: 1 1 auto; min-width: 0;
  background: var(--chip-bg);
  border-radius: 0.5rem;
  padding: 2px;
}
.stepper input {
  background: var(--input-bg);
  border: 1px solid transparent !important;
  border-radius: 0.35rem !important;
  margin: 0 2px;
}
.stepper input[type="date"] { flex: 1 1 8rem; min-width: 0; }
.stepper input[type="time"] { flex: 1 1 5.5rem; min-width: 0; }
.step-btn {
  font: inherit; color: var(--muted);
  background: transparent; border: none;
  border-radius: 0.35rem; cursor: pointer;
  width: 32px; min-height: 36px;
  padding: 0;
  flex: 0 0 auto;
  font-size: 1.4rem; line-height: 1; font-weight: 400;
  display: flex; align-items: center; justify-content: center;
  transition: background 120ms ease, color 120ms ease;
}
.step-btn:hover { background: var(--chip-bg-hover); color: var(--fg); }
.step-btn:active { background: var(--accent-soft); color: var(--accent); }
.step-btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.add-card {
  background: transparent;
  border: 1px dashed var(--border);
  box-shadow: none;
}
.add-card::before { display: none; }
.add-input {
  width: 100%; font: inherit;
  padding: 0.5rem 0.6rem; border: 1px solid var(--border); border-radius: 0.4rem;
  background: var(--input-bg); color: var(--fg); min-height: 40px;
}
.add-input:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; border-color: var(--accent); }
.add-results { list-style: none; padding: 0; margin: 0.5rem 0 0; }
.add-result {
  padding: 0.4rem 0.6rem; cursor: pointer; border-radius: 0.4rem;
  min-height: 40px; display: flex; align-items: center;
  font-size: 0.95rem;
}
.add-result[aria-selected="true"], .add-result:hover { background: var(--chip-bg); }
.add-result .add-result-tz { color: var(--muted); margin-left: auto; padding-left: 1rem; font-size: 0.85rem; }
.add-iana-fallback { margin-top: 0.5rem; color: var(--muted); font-size: 0.9rem; }
.add-error { color: var(--danger); margin-top: 0.5rem; }

dialog {
  border: 1px solid var(--border); border-radius: 0.75rem;
  background: var(--card-bg); color: var(--fg);
  padding: 1.5rem; max-width: 90vw; width: 24rem;
  box-shadow: var(--card-shadow);
}
dialog::backdrop { background: rgba(0,0,0,0.4); }
.copy-list { list-style: none; padding: 0; margin: 1rem 0; }
.copy-list li { padding: 0.25rem 0; }
.copy-list label { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; }
.copy-fallback {
  width: 100%; height: 8rem; font: 0.85rem/1.3 ui-monospace, "SF Mono", Menlo, monospace;
  background: var(--bg); color: var(--fg); border: 1px solid var(--border);
  padding: 0.5rem; border-radius: 0.4rem; margin-top: 0.5rem;
}
.dialog-actions { display: flex; justify-content: flex-end; gap: 0.5rem; padding: 0; margin: 0; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}