/* Monochrome: black and white only, greys for hierarchy. Status is shown by shape, never by colour. */
:root { color-scheme: dark light; --bg: #000; --fg: #fff; --card: #0a0a0a; --line: #2a2a2a; --line-strong: #fff; --muted: #8a8a8a; --hover: #161616; }
@media (prefers-color-scheme: light) {
  :root { --bg: #fff; --fg: #000; --card: #fafafa; --line: #dcdcdc; --line-strong: #000; --muted: #6e6e6e; --hover: #efefef; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }
header { display: flex; justify-content: space-between; align-items: center; padding: 16px 32px; border-bottom: 1px solid var(--line); }
header nav { display: flex; gap: 24px; align-items: center; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a:hover { color: var(--fg); }
.brand { font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; font-size: 0.85rem; color: var(--fg); text-decoration: none; }
main { max-width: 1000px; margin: 40px auto; padding: 0 24px; }
a { color: var(--fg); text-underline-offset: 3px; }
h1 { font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 24px; }
h2 { font-size: 1.1rem; font-weight: 600; margin: 32px 0 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 28px; }
.narrow { max-width: 420px; margin: 96px auto; text-align: center; }
.narrow h1 { letter-spacing: 0.2em; text-transform: uppercase; font-size: 1.2rem; }
.stack { display: flex; flex-direction: column; gap: 18px; max-width: 480px; }
.stack label { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.toolbar { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 20px; align-items: center; }
.toolbar a { color: var(--muted); text-decoration: none; padding-bottom: 2px; }
.toolbar a:hover { color: var(--fg); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline { display: inline; }
input, select, textarea { padding: 10px 12px; border: 1px solid var(--line); border-radius: 2px; background: var(--bg); color: var(--fg); font: inherit; text-transform: none; letter-spacing: normal; }
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible { outline: 2px solid var(--line-strong); outline-offset: 2px; }
button, .button { display: inline-block; padding: 10px 18px; border: 1px solid var(--line-strong); border-radius: 2px; background: var(--fg); color: var(--bg); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
button:hover, .button:hover { background: var(--bg); color: var(--fg); }
button.danger { background: var(--bg); color: var(--fg); border-style: dashed; }
button.danger:hover { background: var(--fg); color: var(--bg); }
button.link { background: none; border: 0; color: var(--fg); padding: 0; font-weight: 400; text-decoration: underline; text-underline-offset: 3px; }
button.link:hover { background: none; color: var(--muted); }
table { width: 100%; border-collapse: collapse; }
th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-weight: 600; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
tbody tr:hover { background: var(--hover); }
.badge { display: inline-block; padding: 1px 10px; border: 1px solid var(--fg); border-radius: 999px; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; }
.badge.active { background: var(--fg); color: var(--bg); }
.badge.revoked { border-style: dashed; text-decoration: line-through; color: var(--muted); border-color: var(--muted); }
.badge.expired { border-style: dotted; color: var(--muted); border-color: var(--muted); }
.notice { padding: 12px 16px; border: 1px solid var(--line-strong); border-left-width: 4px; margin-bottom: 20px; }
.error { color: var(--fg); font-size: 0.85rem; text-decoration: underline wavy; text-underline-offset: 3px; }
.muted { color: var(--muted); }
.keys { list-style: none; padding: 0; margin: 16px 0; border: 1px solid var(--line-strong); }
.keys li { padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
.keys li:last-child { border-bottom: 0; }
code { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 0.92em; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 10px 32px; }
dt { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; }
dd { margin: 0; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 24px 0; }
@media (max-width: 600px) { header { padding: 12px 16px; } main { margin: 24px auto; } .card { padding: 18px; } }