:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #16202a;
  --muted: #5d6b78;
  --line: #dde3e9;
  --brand: #0b6b3a;
  --brand-ink: #ffffff;
  --brand-soft: #e5f2ea;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --warn-soft: #fff6e0;
  --radius: 12px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1418;
    --card: #182027;
    --text: #e8edf1;
    --muted: #9aa8b4;
    --line: #2a353f;
    --brand: #3fb97a;
    --brand-ink: #06130c;
    --brand-soft: #173326;
    --danger: #ff8a80;
    --danger-soft: #3a1d1b;
    --warn-soft: #3a3118;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.wrap { max-width: 520px; margin: 0 auto; padding: 32px 16px 48px; }
.wrap.wide { max-width: 1100px; }
header.hero { margin-bottom: 20px; }
.eyebrow { font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--brand); font-weight: 600; margin: 0 0 4px; }
h1 { font-size: 26px; line-height: 1.2; margin: 0 0 4px; }
.sub { color: var(--muted); margin: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 16px 0 6px; }
label small { font-weight: 400; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=search], select {
  width: 100%; padding: 11px 12px; font: inherit; color: inherit;
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--brand); outline-offset: 1px; }
.days { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.day-opt { position: relative; }
.day-opt input { position: absolute; opacity: 0; inset: 0; }
.day-opt span {
  display: block; text-align: center; padding: 12px; border: 1px solid var(--line);
  border-radius: 8px; cursor: pointer; font-weight: 600; background: var(--bg);
}
.day-opt span small { display: block; font-weight: 400; color: var(--muted); }
.day-opt input:checked + span { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.day-opt input:disabled + span { opacity: .45; cursor: not-allowed; }
.day-opt input:focus-visible + span { outline: 2px solid var(--brand); }
button {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: 8px; padding: 11px 16px;
  border: 1px solid var(--line); background: var(--card); color: var(--text);
}
button.primary { width: 100%; margin-top: 22px; background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
button:disabled { opacity: .6; cursor: progress; }
.msg { margin-top: 16px; padding: 12px 14px; border-radius: 8px; display: none; }
.msg.show { display: block; }
.msg.ok { background: var(--brand-soft); color: var(--brand); }
.msg.err { background: var(--danger-soft); color: var(--danger); }
.msg.warn { background: var(--warn-soft); }
.done { text-align: center; padding: 28px 8px; }
.done .tick { font-size: 44px; line-height: 1; color: var(--brand); }
footer { text-align: center; color: var(--muted); font-size: 13px; margin-top: 20px; }

/* admin */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.toolbar .grow { flex: 1 1 220px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat .k { color: var(--muted); font-size: 13px; }
.stat .v { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .toggle { margin-top: 8px; font-size: 13px; display: flex; gap: 6px; align-items: center; }
.pill { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 99px; font-weight: 600; }
.pill.open { background: var(--brand-soft); color: var(--brand); }
.pill.closed { background: var(--danger-soft); color: var(--danger); }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tabs button.active { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td.num { font-variant-numeric: tabular-nums; color: var(--muted); }
tr:last-child td { border-bottom: 0; }
button.link { border: 0; background: none; padding: 4px 6px; color: var(--danger); font-weight: 500; }
.empty { padding: 28px; text-align: center; color: var(--muted); }
.hidden { display: none !important; }