/* ADUKey — shared stylesheet. Brand palette: navy #16324F, brass #C9A227,
   paper #FAF7F2, verified green #1E7D4D, slate body text. */
:root {
  --navy: #16324F;
  --brass: #C9A227;
  --paper: #FAF7F2;
  --green: #1E7D4D;
  --slate: #334155;
  --muted: #64748b;
  --border: #e2ddd2;
  --amber-bg: #fdf6e3;
  --red: #b91c1c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--slate);
  background: var(--paper);
  line-height: 1.6;
}
a { color: var(--navy); }
a:focus, button:focus, input:focus { outline: 3px solid var(--brass); outline-offset: 2px; }
header.site {
  background: var(--navy);
  color: #fff;
  padding: 14px 20px;
}
header.site a { color: #fff; text-decoration: none; }
header.site .wrap { max-width: 960px; margin: 0 auto; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand { font-size: 26px; font-weight: 800; letter-spacing: -0.5px; }
.brand .key { color: var(--brass); }
.tagline { font-size: 13px; color: #cbd5e1; }
nav.main { margin-left: auto; font-size: 14px; display: flex; gap: 14px; }
main { max-width: 960px; margin: 0 auto; padding: 20px; }
h1 { color: var(--navy); line-height: 1.2; font-size: 2rem; }
h2 { color: var(--navy); border-bottom: 2px solid var(--brass); padding-bottom: 4px; margin-top: 2em; }
h3 { color: var(--navy); }
.badge {
  display: inline-block; background: var(--green); color: #fff;
  font-size: 13px; font-weight: 700; border-radius: 999px; padding: 4px 12px;
}
.badge.pending { background: var(--muted); }
.callout {
  border-left: 4px solid var(--brass); background: var(--amber-bg);
  padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 1em 0;
}
.callout.coastal { border-left-color: #0284c7; background: #f0f9ff; }
.warn { border: 1px solid #f59e0b; background: #fffbeb; border-radius: 8px; padding: 12px 16px; margin: 1em 0; }
.panel {
  border: 1px solid var(--border); border-radius: 12px; padding: 16px;
  background: #fff; margin: 1em 0;
}
table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--navy); color: #fff; }
tr:nth-child(even) td { background: #f8f5f0; }
.tocheck { color: var(--muted); font-style: italic; }
input[type="text"], input[type="number"] {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 15px; width: 100%;
}
button, .btn {
  background: var(--brass); color: #fff; border: none; border-radius: 6px;
  padding: 9px 16px; font-size: 15px; font-weight: 700; cursor: pointer; text-decoration: none; display: inline-block;
}
button.secondary { background: var(--navy); }
label { font-weight: 600; font-size: 14px; }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.calc-out { background: var(--paper); border-radius: 8px; padding: 12px 16px; margin-top: 12px; }
.calc-out b { color: var(--navy); font-size: 1.15em; }
.verdict { border-radius: 8px; padding: 12px 16px; margin: 10px 0; }
.verdict.yes { background: #ecfdf5; border: 1px solid var(--green); }
.verdict.no { background: #fef2f2; border: 1px solid var(--red); }
.verdict.maybe { background: var(--amber-bg); border: 1px solid var(--brass); }
.verdict.unwired { background: #f1f5f9; border: 1px solid var(--muted); }
.example { font-size: 13px; color: var(--muted); }
.provider-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card { border: 1px solid var(--border); border-radius: 12px; padding: 16px; background: #fff; }
footer.site {
  max-width: 960px; margin: 30px auto 0; padding: 20px;
  border-top: 1px solid var(--border); font-size: 13px; color: var(--muted);
}
.breadcrumb { font-size: 13px; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
@media (max-width: 640px) {
  .calc-grid, .provider-grid { grid-template-columns: 1fr; }
  table { font-size: 14px; }
  h1 { font-size: 1.5rem; }
}