:root { --navy: #0f2c4c; --blue: #1d5fa8; --line: #d6dbe1; --bg: #f4f6f8; --text: #1b1f24; --muted: #5a6470; }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.55 "Source Sans 3", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; color: var(--text); background: var(--bg); }
.wrap, main { max-width: 720px; margin: 0 auto; padding: 0 16px; }
.topbar { background: var(--navy); color: #fff; font-weight: 600; font-size: .95rem; letter-spacing: .02em; padding: 12px 0; }
.nav { background: #fff; border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; flex-wrap: wrap; }
.nav a { padding: 12px 14px 10px; font-size: .92rem; font-weight: 600; color: var(--muted); text-decoration: none; border-bottom: 3px solid transparent; min-height: 44px; }
.nav a[aria-current=page] { color: var(--navy); border-bottom-color: var(--blue); }
.nav a:hover { color: var(--navy); }
main section.urgent, main section.help { margin: 16px 0; }
main { padding-top: 24px; padding-bottom: 40px; }
header { border-bottom: 3px solid var(--blue); padding-bottom: 12px; margin-bottom: 8px; }
h1 { font-size: 1.75rem; line-height: 1.2; margin: .2em 0 .4em; color: var(--navy); font-weight: 700; }
h2 { font-size: 1.4rem; color: var(--navy); margin: 1.6em 0 .4em; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
h3 { font-size: 1.15rem; color: var(--navy); margin: 0 0 .4em; }
h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 1.1em 0 .3em; }
.safe { font-size: .9rem; color: var(--muted); border-left: 3px solid var(--blue); padding-left: 10px; }
fieldset { border: 1px solid var(--line); border-radius: 6px; margin: 14px 0; padding: 16px 16px 10px; background: #fff; min-width: 0; }
fieldset::after { content: ""; display: block; clear: both; }
legend { float: left; width: 100%; font-weight: 700; font-size: 1.05rem; color: var(--navy); padding: 0 0 6px; margin-bottom: 4px; border-bottom: 1px solid var(--line); }
legend + * { clear: both; }
fieldset p { margin: .7em 0 .1em; font-weight: 600; font-size: .95rem; }
label { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; cursor: pointer; min-height: 44px; line-height: 1.35; }
label:has(input[type=number]) { display: block; }
label[hidden], [hidden] { display: none !important; }
input[type=checkbox], input[type=radio] { width: 20px; height: 20px; flex: 0 0 auto; margin: 0; accent-color: var(--blue); }
input[type=number] { display: block; width: 100%; max-width: 260px; font-size: 16px; padding: 11px 12px; margin-top: 6px; border: 1px solid #9aa4ae; border-radius: 3px; }
input:focus-visible, button:focus-visible { outline: 3px solid #ffbe2e; outline-offset: 2px; }
button { font: inherit; font-weight: 700; font-size: 1.05rem; padding: 13px 22px; border: 0; border-radius: 4px; background: var(--blue); color: #fff; cursor: pointer; margin-top: 10px; }
button:hover { background: var(--navy); }
form button { width: 100%; }
article, .help { background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--blue); border-radius: 4px; padding: 16px 18px; margin: 16px 0; }
.urgent { background: #fdf0ef; border: 1px solid #e3a7a2; border-left: 6px solid #b3261e; border-radius: 4px; padding: 16px 18px; margin: 16px 0; }
.urgent h3 { color: #8a1c15; }
.flags { background: #fff9e8; border: 1px solid #ecd48a; border-left: 6px solid #d9a400; border-radius: 4px; padding: 14px 18px; margin: 16px 0; }
.warn { color: #b3261e; font-weight: 700; }
.likely { font-size: .92rem; padding: 7px 12px; border-radius: 3px; margin: .3em 0 .6em; }
.likely.likely { background: #e7f4ea; border-left: 4px solid #2e7d32; }
.likely.maybe { background: #eef1f4; border-left: 4px solid #8a96a3; }
.src { font-size: .8rem; color: var(--muted); }
.src a, footer a { color: var(--blue); }
ul, ol { padding-left: 1.25em; margin: .3em 0; }
li { margin: .35em 0; }
footer { border-top: 1px solid var(--line); background: #fff; color: var(--muted); font-size: .85rem; padding: 18px 0 28px; }
@media (max-width: 480px) {
  body { font-size: 16px; }
  main, .wrap { padding-left: 12px; padding-right: 12px; }
  h1 { font-size: 1.45rem; }
  fieldset { padding: 14px 12px 8px; }
  article, .urgent, .flags, .help { padding: 14px 14px; }
  input[type=number] { max-width: 100%; }
  button { width: 100%; }
}
@media print {
  .topbar, .nav, form, header .safe, button, footer { display: none !important; }
  body { background: #fff; font-size: 12.5px; }
  article, .urgent, .flags, .help { break-inside: avoid; }
}