:root {
  --primary: #0078ff;
  --text: #4e5460;
  --muted: #6b7280;
  --bg: #f5f7fa;
  --card: #ffffff;
  --border: #e5e7eb;
  --ok: #15803d;
  --bad: #b91c1c;
  --warn: #b45309;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
header { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 16px 24px; background: var(--card); border-bottom: 1px solid var(--border); }
h1 { margin: 0; font-size: 1.4rem; }
h2 { font-size: 1.1rem; }
main { padding: 24px; max-width: 1100px; margin: 0 auto; }
main.narrow { max-width: 460px; margin-top: 8vh; background: var(--card); border: 1px solid var(--border); border-radius: 12px; }
a { color: var(--primary); }
label { display: block; margin: 14px 0; font-weight: 600; font-size: .9rem; }
input, select { display: block; width: 100%; margin-top: 6px; padding: 10px 12px; font: inherit; color: var(--text); border: 1px solid var(--border); border-radius: 7px; background: #fff; }
input:focus, select:focus { outline: 2px solid rgba(0, 120, 255, .25); border-color: var(--primary); }
button { padding: 10px 18px; font: inherit; font-weight: 600; color: #fff; background: linear-gradient(to right, #bacefe, #0078ff); border: 0; border-radius: 7px; cursor: pointer; }
button.danger { background: var(--bad); }
form.inline { display: flex; gap: 8px; align-items: center; }
form.inline input { margin: 0; min-width: 130px; }
form.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
form.filters input, form.filters select { width: auto; margin: 0; min-width: 220px; }
.scroll { overflow-x: auto; background: var(--card); border: 1px solid var(--border); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .8rem; font-weight: 700; background: #e5e7eb; }
.badge.valid { background: #dcfce7; color: var(--ok); }
.badge.revoked, .badge.invalid { background: #fee2e2; color: var(--bad); }
.badge.expired, .badge.not_yet_valid { background: #fef3c7; color: var(--warn); }
.badge.big { font-size: 1.1rem; padding: 6px 18px; }
.error { color: var(--bad); font-weight: 600; }
p.ok { color: var(--ok); font-weight: 600; }
.muted { color: var(--muted); }
.pager { display: flex; gap: 16px; margin-top: 16px; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
dt { color: var(--muted); }
dd { margin: 0; }
.checks { padding-left: 0; list-style: none; }
.checks li { padding: 4px 0; }
.checks li.ok::before { content: "\2713  "; color: var(--ok); font-weight: 700; }
.checks li.bad::before { content: "\2717  "; color: var(--bad); font-weight: 700; }
@media (max-width: 600px) { main { padding: 16px; } header { padding: 12px 16px; } }