:root {
  --bg: #f6f2fb;
  --card: #ffffff;
  --text: #2c2440;
  --muted: #6d6485;
  --line: #ddd4ec;
  --accent: #7a4fd0;
  --accent-text: #ffffff;
  --warn: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17131f;
    --card: #221c2e;
    --text: #ece7f5;
    --muted: #a69dbb;
    --line: #3a3150;
    --accent: #a585f0;
    --accent-text: #17131f;
    --warn: #f2b8b5;
  }
}
* { 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;
}
main { max-width: 640px; margin: 0 auto; padding: 16px; }
main.narrow { max-width: 360px; padding-top: 12vh; }
header { display: flex; align-items: center; justify-content: space-between; }
h1 { font-size: 1.5rem; margin: 8px 0 16px; }
h2 { font-size: 1.05rem; margin: 0 0 10px; }
h3 { font-size: 1rem; margin: 12px 0 6px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}
.big { font-size: 1.25rem; font-weight: 600; margin: 0 0 12px; }
.hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 10px; }
.message { color: var(--warn); min-height: 1.4em; }
.buttons { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 12px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0; }
button, select, input {
  font: inherit;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  min-height: 44px;
}
button { cursor: pointer; }
button:disabled { opacity: 0.45; cursor: default; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.quiet { border-color: transparent; color: var(--muted); padding-inline: 8px; }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
form.card { display: grid; gap: 10px; }
.entry { border-top: 1px solid var(--line); padding: 8px 0; }
.entry:first-child { border-top: 0; }
.days { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.day { padding: 8px 0; min-height: 40px; font-size: 0.85rem; }
.day.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.tag { color: var(--muted); font-size: 0.9rem; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; }