:root {
  --ink: #1c2b3a;
  --muted: #5b6b7d;
  --brand: #0f6cbd;
  --brand-dark: #0a4f8c;
  --bg: #f6f8fb;
  --card: #ffffff;
  --line: #dde6f0;
  --accent: #eaf3fc;
  --warn-bg: #fdf3e7;
  --warn-line: #e8b25c;
  --danger-bg: #fdecec;
  --danger-line: #d64545;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
}
.page { max-width: 860px; margin: 0 auto; padding: 0 20px 64px; }
.crumb { font-size: 0.85rem; color: var(--muted); margin: 20px 0 6px; }
.crumb a { color: var(--brand); text-decoration: none; }
header.hero { padding: 10px 0 4px; }
h1 { font-size: 2rem; line-height: 1.25; margin: 0 0 8px; }
.subtitle { font-size: 1.05rem; color: var(--muted); margin: 0 0 18px; }
.widget {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  margin: 8px 0 34px;
  box-shadow: 0 2px 10px rgba(15, 108, 189, 0.06);
}
.widget h2 { margin: 0 0 4px; font-size: 1.25rem; }
.widget .hint { font-size: 0.9rem; color: var(--muted); margin: 0 0 16px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }
.field label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 6px; }
.field input, .field select {
  width: 100%; padding: 10px 12px; font-size: 1rem;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink);
}
.btn {
  display: inline-block; margin-top: 16px; padding: 12px 22px; font-size: 1rem; font-weight: 700;
  color: #fff; background: var(--brand); border: none; border-radius: 8px; cursor: pointer;
}
.btn:hover { background: var(--brand-dark); }
.results { margin-top: 20px; display: none; }
.results.show { display: block; }
.results table { width: 100%; border-collapse: collapse; font-size: 0.95rem; margin-top: 8px; }
.results th, .results td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.results th { background: var(--accent); }
.results .num { font-variant-numeric: tabular-nums; font-weight: 600; }
.bigline { font-size: 1.12rem; margin: 6px 0; }
.errorbox {
  margin-top: 16px; padding: 12px 14px; border-radius: 8px;
  background: var(--danger-bg); border: 1px solid var(--danger-line); color: #7a1f1f;
  display: none; font-weight: 600;
}
.errorbox.show { display: block; }
.widget-note {
  margin-top: 16px; padding: 12px 14px; border-radius: 8px;
  background: var(--accent); border: 1px solid var(--line); font-size: 0.9rem; color: var(--muted);
}
article { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 28px; margin-bottom: 24px; }
article h2 { font-size: 1.45rem; margin: 34px 0 10px; padding-top: 6px; border-top: 1px solid var(--line); }
article h2:first-of-type { margin-top: 6px; border-top: none; padding-top: 0; }
article h3 { font-size: 1.12rem; margin: 22px 0 6px; }
article p { margin: 0 0 14px; }
article ul, article ol { margin: 0 0 16px; padding-left: 24px; }
article li { margin-bottom: 8px; }
.callout {
  border-left: 4px solid var(--brand); background: var(--accent);
  padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 18px 0;
}
.warnbox {
  background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: 8px;
  padding: 14px 16px; margin: 18px 0;
}
.dangerbox {
  background: var(--danger-bg); border: 2px solid var(--danger-line); border-radius: 8px;
  padding: 16px 18px; margin: 18px 0;
}
.dangerbox strong { color: #7a1f1f; }
table.doses { width: 100%; border-collapse: collapse; font-size: 0.94rem; margin: 14px 0 20px; }
table.doses th, table.doses td { border: 1px solid var(--line); padding: 9px 10px; text-align: left; vertical-align: top; }
table.doses th { background: var(--accent); }
section.faq { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 28px; margin-bottom: 24px; }
.faq h2 { font-size: 1.45rem; margin: 0 0 12px; }
.faq details { border-bottom: 1px solid var(--line); padding: 10px 0; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 8px 0 4px; }
.sources { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 28px; margin-bottom: 24px; }
.sources h2 { font-size: 1.3rem; margin: 0 0 10px; }
.sources ol { padding-left: 22px; margin: 0; font-size: 0.93rem; color: var(--muted); }
.sources li { margin-bottom: 8px; }
.sources a { color: var(--brand); word-break: break-all; }
.disclaimer {
  background: #fff8e6; border: 1px solid #d9b64a; border-radius: 12px;
  padding: 20px 24px; font-size: 0.92rem; color: #5a4a1a; margin-bottom: 24px;
}
.disclaimer h2 { font-size: 1.1rem; margin: 0 0 8px; color: #5a4a1a; }
footer.site { text-align: center; color: var(--muted); font-size: 0.85rem; padding: 18px 0 8px; }
footer.site a { color: var(--brand); text-decoration: none; }