/* FEAT-008: public calendar UI. Light tokens by default; dark via [data-theme=dark]
   or prefers-color-scheme when no manual theme is set. */
:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1c2430;
  --muted: #5b6675;
  --border: #d8dee6;
  --accent: #2563eb;
  --chip-bg: #eef1f5;
  --chip-on: #2563eb;
  --chip-on-text: #ffffff;
  --high: #dc2626;
  --medium: #d97706;
  --low: #ca8a04;
  --unknown: #94a3b8;
  --flash: #fde68a;
  --today: #eff6ff;
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #10151c;
  --panel: #171e27;
  --text: #e5eaf1;
  --muted: #94a1b2;
  --border: #2a3442;
  --accent: #60a5fa;
  --chip-bg: #222c39;
  --chip-on: #2563eb;
  --chip-on-text: #ffffff;
  --high: #f87171;
  --medium: #fbbf24;
  --low: #facc15;
  --unknown: #64748b;
  --flash: #92702a;
  --today: #1a2536;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #10151c;
    --panel: #171e27;
    --text: #e5eaf1;
    --muted: #94a1b2;
    --border: #2a3442;
    --accent: #60a5fa;
    --chip-bg: #222c39;
    --chip-on: #2563eb;
    --chip-on-text: #ffffff;
    --high: #f87171;
    --medium: #fbbf24;
    --low: #facc15;
    --unknown: #64748b;
    --flash: #92702a;
    --today: #1a2536;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.6rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { font-size: 1.05rem; margin: 0; }
.week-label { color: var(--muted); }
.weeknav { display: flex; gap: 0.25rem; }
.weeknav button, .theme-toggle {
  background: var(--chip-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  font: inherit;
}
.weeknav button:hover, .theme-toggle:hover { border-color: var(--accent); }
.theme-toggle { margin-left: auto; }

.live { display: inline-flex; align-items: center; gap: 0.35rem; color: var(--muted); font-size: 0.85rem; }
.live .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--unknown); }
.live.on .dot { background: #16a34a; }
.live.on #live-label { color: #16a34a; }

.banner {
  margin: 0.75rem 1rem 0;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--medium);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
}

.filters { padding: 0.5rem 1rem 0; display: flex; flex-direction: column; gap: 0.35rem; }
.chip-row { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.chip {
  background: var(--chip-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
}
.chip.on { background: var(--chip-on); border-color: var(--chip-on); color: var(--chip-on-text); }
.chip:disabled { opacity: 0.5; cursor: default; }

main { padding: 0.75rem 1rem 1rem; }

.unscheduled {
  margin-bottom: 0.75rem;
  padding: 0.5rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--panel);
}
.unscheduled h2 { margin: 0 0 0.35rem; font-size: 0.8rem; color: var(--muted); text-transform: uppercase; }

.week {
  display: grid;
  grid-template-columns: repeat(7, minmax(150px, 1fr));
  gap: 0.5rem;
  align-items: start;
}
.day {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem;
  min-height: 3rem;
}
.day.collapsed { display: none; }
.day.today { background: var(--today); border-color: var(--accent); }
.day h2 { margin: 0 0 0.35rem; font-size: 0.8rem; color: var(--muted); font-weight: 600; }
.day.today h2 { color: var(--accent); }

.evt {
  border-left: 3px solid var(--unknown);
  border-radius: 4px;
  padding: 0.3rem 0.45rem;
  margin-bottom: 0.35rem;
  background: color-mix(in srgb, var(--panel) 92%, var(--text) 8%);
}
.evt.high { border-left-color: var(--high); }
.evt.medium { border-left-color: var(--medium); }
.evt.low { border-left-color: var(--low); }
.evt .meta { color: var(--muted); font-size: 0.78rem; display: flex; gap: 0.4rem; }
.evt .meta .cur { font-weight: 600; color: var(--text); }
.evt .title { font-size: 0.86rem; }
.evt .figs { color: var(--muted); font-size: 0.78rem; }
.evt .figs .actual { color: var(--text); font-weight: 600; }

@media (prefers-reduced-motion: no-preference) {
  .evt.flash { animation: ec-flash 3s ease-out 1; }
  @keyframes ec-flash {
    0% { background: var(--flash); }
    100% { background: color-mix(in srgb, var(--panel) 92%, var(--text) 8%); }
  }
}

.empty { color: var(--muted); text-align: center; padding: 2rem 0; }

.legend {
  padding: 0.5rem 1rem 1rem;
  color: var(--muted);
  font-size: 0.8rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}
.lg { padding-left: 0.9rem; position: relative; }
.lg::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 9px; height: 9px; border-radius: 2px; }
.lg.high::before { background: var(--high); }
.lg.medium::before { background: var(--medium); }
.lg.low::before { background: var(--low); }
.lg.unknown::before { background: var(--unknown); }

@media (max-width: 720px) {
  .week { grid-template-columns: 1fr; }
  .day.collapsed { display: block; }
  .day:empty { display: none; }
}