:root {
  --bg: #f6f3ee;
  --card: #ffffff;
  --text: #1f2421;
  --muted: #5f6b66;
  --line: #e3ddd3;
  --accent: #2f6f5e;
  --accent-text: #ffffff;
  --warn-bg: #fff4e0;
  --warn-line: #e8b55a;
  --warn-text: #8a5a00;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141816;
    --card: #1e2421;
    --text: #e8ece9;
    --muted: #9aa8a2;
    --line: #2e3733;
    --accent: #5fb39b;
    --accent-text: #0d1512;
    --warn-bg: #2b2210;
    --warn-line: #8a6a2a;
    --warn-text: #f0c470;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.bar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top));
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand h1 { margin: 0; font-size: 1.05rem; }
.brand p { margin: 0; font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

main { max-width: 640px; margin: 0 auto; padding: 16px; display: grid; gap: 12px; }
#controls { display: grid; gap: 12px; }
#controls.disabled { opacity: 0.45; pointer-events: none; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}
.card h2 { margin: 0 0 10px; font-size: 1.05rem; }
.card.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.card p { margin: 8px 0; }
.card ol { margin: 0; padding-left: 20px; }

.muted { color: var(--muted); font-size: 0.9rem; }
.warn-text { color: var(--warn-text); font-size: 0.9rem; }

.status { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.stat { display: grid; gap: 2px; }
.stat .label { color: var(--muted); font-size: 0.8rem; }
.stat .value { font-size: 1.4rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.wide { grid-column: 1 / -1; }

.clock-time { font-size: 1.6rem; font-weight: 600; font-variant-numeric: tabular-nums; margin: 0; }
.clock-state-ok { color: var(--accent); }
.clock-state-off { color: var(--warn-text); }

button {
  font: inherit;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  min-height: 44px;
}
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
button:disabled { opacity: 0.5; cursor: default; }

input[type="number"], select {
  font: inherit;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  min-height: 44px;
  min-width: 0;
}
input[type="range"] { width: 100%; accent-color: var(--accent); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--accent); width: 20px; height: 20px; flex: none; }

.field { display: grid; gap: 6px; margin-bottom: 8px; }
.field select { width: 100%; }
.switch { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 8px 0; }
.row input[type="number"] { width: 110px; }

.choices { border: 0; margin: 8px 0; padding: 0; display: grid; gap: 10px; }
.choices legend { font-weight: 600; margin-bottom: 6px; padding: 0; }
.choices label { display: flex; gap: 10px; align-items: flex-start; }

.slot {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.slot .slot-detail { grid-column: 1 / -1; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.slot select { flex: 1 1 90px; }
.slot .size { display: flex; gap: 6px; align-items: center; }
.slot .size input { width: 80px; }
#slots { margin: 8px 0; }

details summary { cursor: pointer; font-weight: 600; min-height: 32px; }
pre {
  background: var(--bg);
  border-radius: 10px;
  padding: 10px;
  overflow-x: auto;
  font-size: 0.8rem;
}

#toast {
  position: fixed;
  left: 50%;
  bottom: max(16px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--text);
  color: var(--bg);
  font-size: 0.9rem;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
#toast.show { opacity: 1; }
#toast.error { background: #b3261e; color: #fff; }