:root {
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #17202e;
  --muted: #627084;
  --line: #dde3ec;
  --accent: #2f6fdf;
  --accent-soft: #e6eefc;
  --good: #1f9d55;
  --warn: #c98200;
  --bad: #d13b3b;
  --bad-soft: #fdeaea;
  --radius: 14px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10141b;
    --card: #19202b;
    --text: #e8edf4;
    --muted: #94a0b2;
    --line: #2a3443;
    --accent: #6c9cff;
    --accent-soft: #1f2d4a;
    --good: #3ec27a;
    --warn: #f0b23c;
    --bad: #ff6b6b;
    --bad-soft: #3a1e22;
    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;
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}

.top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 16px 4px;
  max-width: 760px;
  margin: 0 auto;
}

.top h1 { font-size: 22px; margin: 0; }

main { max-width: 760px; margin: 0 auto; padding: 8px 16px 24px; }

h2 { font-size: 18px; margin: 20px 0 8px; }
h3 { font-size: 16px; margin: 0 0 8px; }

.muted { color: var(--muted); font-size: 14px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 10px 0;
}

.card.alert { border-color: var(--bad); background: var(--bad-soft); }

.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }

.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; background: var(--muted); }
.dot.on { background: var(--good); }
.dot.off { background: var(--bad); }

.bar { height: 10px; border-radius: 6px; background: var(--line); overflow: hidden; margin: 6px 0 2px; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: 6px; }
.bar.over > span { background: var(--bad); }
.bar.near > span { background: var(--warn); }

button, .btn {
  font: inherit;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  min-height: 40px;
}

button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }
button.small { padding: 4px 10px; min-height: 32px; font-size: 14px; }
button:disabled { opacity: .5; cursor: default; }

input, select {
  font: inherit;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  min-height: 40px;
  max-width: 100%;
}

input[type=number] { width: 84px; }
input[type=time] { width: 132px; }

label.field { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--muted); }

.days { display: flex; gap: 4px; flex-wrap: wrap; }
.days label {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 8px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}
.days input { display: none; }
.days label:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}
.chip input { display: none; }
.chip:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); }

.segmented { display: flex; gap: 4px; overflow-x: auto; margin: 4px 0 8px; }
.segmented button { white-space: nowrap; }
.segmented button.active { background: var(--accent-soft); border-color: var(--accent); }

table.week { width: 100%; border-collapse: collapse; font-size: 14px; }
.week td { padding: 4px 2px; vertical-align: middle; }
.stack { display: flex; height: 14px; border-radius: 6px; overflow: hidden; background: var(--line); }
.legend { display: flex; flex-wrap: wrap; gap: 10px; font-size: 13px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 4px; }

.app-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.app-row:last-child { border-bottom: 0; }

.code {
  font: 600 32px/1.2 ui-monospace, Menlo, monospace;
  letter-spacing: 6px;
  text-align: center;
  padding: 10px;
  background: var(--accent-soft);
  border-radius: 10px;
}

.tabs {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  display: flex;
  justify-content: center;
  background: var(--card);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}

.tabs button {
  flex: 1;
  max-width: 152px;
  border: 0;
  border-radius: 0;
  background: none;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 2px;
  min-height: 60px;
}

.tabs .ico { font-size: 20px; line-height: 1.2; }
.tabs button.active { color: var(--accent); }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(88px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  max-width: calc(100% - 32px);
}

.login { max-width: 360px; margin: 15vh auto 0; }
.login input { width: 100%; margin: 8px 0; }

.event { font-size: 14px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.event:last-child { border-bottom: 0; }
.event.danger { color: var(--bad); }

.app-row .grow > div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-row select { flex-shrink: 0; max-width: 46%; }