:root {
  --bg: #f5f6f8; --card: #ffffff; --text: #16181d; --muted: #6b7280; --line: #e3e6eb;
  --accent: #1f6feb; --accent-text: #ffffff; --ok: #1a7f37; --ok-bg: #dcf5e3;
  --bad: #cf222e; --bad-bg: #ffe4e6; --chip: #eef1f5;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116; --card: #161b22; --text: #e6edf3; --muted: #8b949e; --line: #2a313b;
    --accent: #2f81f7; --ok: #3fb950; --ok-bg: #12311d; --bad: #f85149; --bad-bg: #3b1218; --chip: #21262d;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: .2rem 0 1rem; letter-spacing: -.01em; }
h2 { font-size: 1.1rem; margin: 2rem 0 .7rem; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .8rem 1.2rem; background: var(--card); border-bottom: 1px solid var(--line); }
.top nav { display: flex; align-items: center; gap: 1.2rem; }
.brand { font-weight: 700; color: var(--text); display: inline-flex; align-items: center; gap: .5rem; }
.brand.big { font-size: 1.4rem; margin-bottom: 1rem; }
.dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 25%, transparent); }

.wrap { max-width: 1040px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }

.card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 1rem 1.2rem; color: inherit; }
a.card:hover { text-decoration: none; border-color: var(--accent); }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.empty { text-align: center; padding: 2.5rem; color: var(--muted); }

.host-top { display: flex; justify-content: space-between; align-items: center; gap: .5rem; }
.fqdn { font-weight: 600; font-family: var(--mono); overflow-wrap: anywhere; }
.host dl { display: grid; grid-template-columns: 3.5rem 1fr; margin: .7rem 0; row-gap: .2rem; }
.host dt, .label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
.host dd { margin: 0; overflow-wrap: anywhere; }
.ip { font-size: 1.35rem; margin: .3rem 0; overflow-wrap: anywhere; }

.badge { font-size: .75rem; padding: .1rem .55rem; border-radius: 999px; background: var(--chip); color: var(--muted); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.alert { background: var(--bad-bg); color: var(--bad); padding: .6rem .8rem; border-radius: 8px; }

table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; overflow: hidden; font-size: .9rem; }
th, td { text-align: left; padding: .55rem .8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: .8rem; }
tr:last-child td { border-bottom: 0; }
tr.revoked { opacity: .55; }
.kind { font-size: .72rem; padding: .05rem .45rem; border-radius: 6px; background: var(--chip); margin-right: .3rem; }
tr.k-update .kind { background: var(--ok-bg); color: var(--ok); }
tr.k-error .kind { background: var(--bad-bg); color: var(--bad); }
.actions { white-space: nowrap; text-align: right; }

input, select { font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: .5rem .65rem; width: 100%; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 0; }
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .8rem; }
label input, label select { margin-top: .25rem; color: var(--text); }
button, .button { font: inherit; font-size: .9rem; padding: .45rem .9rem; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--card); color: var(--text); display: inline-block; }
button:hover, .button:hover { border-color: var(--accent); text-decoration: none; }
.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.danger { color: var(--bad); }
button.link { border: 0; background: none; color: var(--accent); padding: 0; }
form.inline { display: inline; }
.row { display: flex; gap: .6rem; margin-top: .8rem; flex-wrap: wrap; }
.row input { flex: 1; min-width: 12rem; }
.form { max-width: 520px; }
.login { width: 100%; max-width: 360px; }
.login button { width: 100%; margin-top: .4rem; padding: .6rem; }

.secret { display: flex; gap: .6rem; align-items: center; background: var(--bg); border: 1px dashed var(--accent);
  border-radius: 8px; padding: .6rem .8rem; }
.secret code { flex: 1; font-family: var(--mono); overflow-wrap: anywhere; }
pre { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: .8rem; overflow-x: auto; font-size: .85rem; }
.kv { display: grid; grid-template-columns: 7rem 1fr; row-gap: .35rem; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }
.danger-zone { margin-top: 2.5rem; }
.danger-zone summary { cursor: pointer; color: var(--bad); }
@media (max-width: 640px) { .top { flex-direction: column; align-items: flex-start; } th:nth-child(4), td:nth-child(4) { display: none; } }
textarea { font: inherit; font-family: var(--mono); font-size: .85rem; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: .5rem .65rem; width: 100%; margin-top: .25rem; resize: vertical; }
.form-grid { display: grid; gap: 0 1rem; grid-template-columns: 1.4fr .8fr 2fr .8fr auto; align-items: end; margin-bottom: .6rem; }
.form-grid > div { margin-bottom: .8rem; }
@media (max-width: 860px) { .form-grid { grid-template-columns: 1fr 1fr; } .form-grid .wide { grid-column: 1 / -1; } }
.inline-details { display: inline-block; text-align: left; }
.inline-details summary { cursor: pointer; display: inline; font-size: .9rem; }