:root {
  --ink: #1f2933;
  --muted: #52606d;
  --line: #d9e2ec;
  --bg: #f5f7fa;
  --card: #ffffff;
  --brand: #0f4c5c;
  --brand-ink: #ffffff;
  --bad: #b42318;
  --good: #067647;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.5; }
header.top { background: var(--card); border-bottom: 1px solid var(--line); padding: 10px 16px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
header.top .brand { font-weight: 700; color: var(--brand); text-decoration: none; }
header.top nav { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
header.top nav a { color: var(--ink); text-decoration: none; }
header.top nav a.on { text-decoration: underline; text-underline-offset: 4px; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; }
main.narrow { max-width: 420px; }
h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 28px 0 8px; }
p.sub { color: var(--muted); margin: 0 0 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 0 0 16px; }
label { display: block; font-weight: 600; margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=password], input[type=tel], select {
  width: 100%; padding: 10px 12px; border: 1px solid #9aa5b1; border-radius: 6px; font-size: 1rem; background: #fff;
}
button, .button {
  display: inline-block; padding: 10px 16px; border-radius: 6px; border: 1px solid var(--brand);
  background: var(--brand); color: var(--brand-ink); font-size: 1rem; cursor: pointer; text-decoration: none;
}
button.secondary, .button.secondary { background: #fff; color: var(--brand); }
button.danger { background: #fff; color: var(--bad); border-color: var(--bad); }
button.link { background: none; border: none; color: var(--brand); padding: 0; text-decoration: underline; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }
.msg { padding: 10px 12px; border-radius: 6px; margin: 0 0 16px; }
.msg.bad { background: #fef3f2; color: var(--bad); border: 1px solid #fecdca; }
.msg.good { background: #ecfdf3; color: var(--good); border: 1px solid #abefc6; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.tile { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px 18px; text-decoration: none; color: var(--ink); }
.tile:hover { border-color: var(--brand); }
.tile strong { display: block; font-size: 1.15rem; color: var(--brand); }
.tile span { color: var(--muted); font-size: .9rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); }
.muted { color: var(--muted); }
.pill { display: inline-block; font-size: .8rem; padding: 1px 8px; border-radius: 99px; background: #e4e7eb; }
.pill.off { background: #fee4e2; color: var(--bad); }
code.codes { display: block; white-space: pre; font-size: 1.05rem; background: #f0f4f8; padding: 12px; border-radius: 6px; }
.qr { width: 200px; height: 200px; background: #fff; padding: 8px; border: 1px solid var(--line); }
.or { text-align: center; color: var(--muted); margin: 14px 0; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 12px 0; padding: 10px 14px; }
legend { font-weight: 600; }
.inline { display: inline; }
@media (max-width: 480px) { main { padding: 16px 12px 40px; } }