:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --text: #1d1b18;
  --muted: #5f5a52;
  --line: #e2ddd3;
  --accent: #c2410c;
  --accent-text: #ffffff;
  --ok: #166534;
  --warn: #92400e;
  --bad: #b91c1c;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161412;
    --surface: #211e1b;
    --text: #f1ede6;
    --muted: #b3ab9f;
    --line: #3a352f;
    --accent: #fb923c;
    --accent-text: #1d1b18;
    --ok: #4ade80;
    --warn: #fbbf24;
    --bad: #f87171;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.top, main, .foot { max-width: 640px; margin: 0 auto; padding: 0 16px; }
.top { padding-top: 24px; }
h1 { margin: 0; font-size: 1.75rem; color: var(--accent); }
h2 { font-size: 1.35rem; margin: 32px 0 12px; }
h3 { font-size: 1.05rem; margin: 0 0 8px; }
.lead { color: var(--muted); margin: 6px 0 16px; }

.tabs { display: flex; flex-wrap: wrap; gap: 4px; border-bottom: 1px solid var(--line); }
.tab { padding: 8px 8px; color: var(--text); text-decoration: none; font-weight: 600; }
.tab:hover { color: var(--accent); }

.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.step, .result {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

label { display: block; margin: 10px 0; font-weight: 600; }
.hint { font-weight: 400; color: var(--muted); }

input, select {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 44px;
}

.amount { display: flex; gap: 8px; margin-top: 8px; }
.amount input { flex: 1; }
.amount select { width: 84px; flex: none; }

.sizes { border: 0; padding: 0; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 4px 16px; }
.sizes legend { font-weight: 600; margin-bottom: 4px; }
.sizes label { display: flex; align-items: center; gap: 6px; font-weight: 400; margin: 4px 0; }
.sizes input { width: auto; min-height: 0; margin: 0; }

button, .button {
  display: inline-block;
  min-height: 44px;
  padding: 10px 18px;
  font: inherit;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  margin-top: 8px;
}
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
button:focus-visible, .button:focus-visible, input:focus-visible, select:focus-visible, .tab:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

progress { width: 100%; height: 12px; margin-top: 12px; accent-color: var(--accent); }
.status { color: var(--muted); margin: 8px 0 0; }
.countdown { font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.alert { color: var(--bad); font-weight: 600; }
.checklist { margin: 0; padding-left: 20px; }

.result { margin-top: 16px; border-width: 2px; }
.verdict { font-size: 1.3rem; font-weight: 700; margin: 0 0 8px; }
.verdict.conforme { color: var(--ok); }
.verdict.a_verifier { color: var(--warn); }
.verdict.suspect { color: var(--bad); }
.figures { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; margin: 0; }
.figures dt { color: var(--muted); }
.figures dd { margin: 0; font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }
.explain { color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 0.85rem; color: var(--muted); }

.foot { color: var(--muted); font-size: 0.85rem; padding-top: 32px; padding-bottom: 32px; }