:root {
  --bg: #f5f6f8; --panel: #ffffff; --text: #1d2330; --muted: #667085; --border: #e2e5ea;
  --accent: #2463eb; --accent-text: #ffffff; --danger: #c7362f; --warn: #b26b00; --ok: #18794e;
  --nav: #141a26; --nav-text: #c9d1e0; --nav-active: #ffffff;
  --bar0: #2463eb; --bar1: #18794e; --bar2: #b26b00; --bar3: #7c3aed;
  --radius: 8px; color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a; --panel: #171c25; --text: #e6e9ef; --muted: #98a2b3; --border: #2a313d;
    --accent: #5b8cff; --danger: #f0716a; --warn: #f0a83c; --ok: #44c28a;
    --nav: #0a0d12; --bar0: #5b8cff; --bar1: #44c28a; --bar2: #f0a83c; --bar3: #a78bfa; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 12px; }
code, .mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 13px; }
h1 .mono { font-size: inherit; }
code { word-break: break-all; }
.shell { display: flex; min-height: 100vh; }
.sidebar { width: 210px; flex: none; background: var(--nav); color: var(--nav-text); padding: 18px 0; }
.sidebar .brand { color: #fff; font-weight: 600; padding: 0 20px 18px; font-size: 15px; }
.sidebar .brand small { display: block; color: var(--nav-text); font-weight: 400; font-size: 12px; }
.sidebar a { display: block; color: var(--nav-text); padding: 8px 20px; }
.sidebar a:hover { background: rgba(255,255,255,.06); text-decoration: none; }
.sidebar a.active { color: var(--nav-active); background: rgba(255,255,255,.1); border-left: 3px solid var(--accent); padding-left: 17px; }
.sidebar .signout { padding: 12px 20px; }
.mt { margin-top: 14px; }
.main { flex: 1; min-width: 0; padding: 24px 28px 48px; }
.topbar { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.topbar .sub { color: var(--muted); }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 26px; font-weight: 600; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }
.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid currentColor; }
.badge-active { color: var(--ok); } .badge-expiring_soon { color: var(--warn); }
.badge-expired, .badge-revoked { color: var(--danger); } .badge-suspended { color: var(--warn); }
.badge-deactivated, .badge-replaced { color: var(--muted); }
.badge-online, .badge-offline, .badge-both { color: var(--muted); }
.btn, button { display: inline-block; border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 7px 14px; border-radius: 6px; font: inherit; cursor: pointer; line-height: 1.3; }
.btn:hover, button:hover { border-color: var(--accent); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-small { padding: 3px 9px; font-size: 13px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
form.inline { display: inline; }
label { display: block; font-weight: 600; margin: 0 0 4px; font-size: 13px; }
.field { margin-bottom: 14px; }
.field .hint { color: var(--muted); font-size: 12px; margin-top: 3px; font-weight: 400; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=search], select, textarea {
  width: 100%; max-width: 520px; padding: 7px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); color: var(--text); font: inherit;
}
textarea { min-height: 80px; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.filters input, .filters select { width: auto; }
.alert { border-radius: var(--radius); padding: 10px 14px; margin-bottom: 16px; border: 1px solid; }
.alert-ok { border-color: var(--ok); color: var(--ok); }
.alert-error { border-color: var(--danger); color: var(--danger); }
.alert-warn { border-color: var(--warn); color: var(--warn); }
.alert ul { margin: 0; padding-left: 18px; }
.keybox { font-family: ui-monospace, Consolas, monospace; font-size: 20px; letter-spacing: .04em; padding: 12px 14px; border: 2px dashed var(--accent); border-radius: var(--radius); display: inline-block; user-select: all; }
dl.props { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 0; }
dl.props dt { color: var(--muted); }
dl.props dd { margin: 0; }
details summary { cursor: pointer; font-weight: 600; margin-bottom: 8px; }
.chart { width: 100%; height: auto; display: block; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.chart .axis { fill: var(--muted); font-size: 11px; }
.chart .bar-0 { fill: var(--bar0); } .chart .bar-1 { fill: var(--bar1); } .chart .bar-2 { fill: var(--bar2); } .chart .bar-3 { fill: var(--bar3); }
.legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.legend .bar-0 { background: var(--bar0); } .legend .bar-1 { background: var(--bar1); } .legend .bar-2 { background: var(--bar2); } .legend .bar-3 { background: var(--bar3); }
.pagination { display: flex; gap: 6px; margin-top: 14px; align-items: center; }
.empty { color: var(--muted); padding: 18px 0; text-align: center; }
.guest { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.guest .panel { width: 100%; max-width: 380px; }
.hidden { display: none; }
@media (max-width: 760px) {
  .shell { flex-direction: column; }
  .sidebar { width: auto; display: flex; flex-wrap: wrap; padding: 8px; }
  .sidebar .brand { width: 100%; padding: 6px 10px; }
  .sidebar a { padding: 6px 10px; }
  .sidebar a.active { border-left: 0; padding-left: 10px; }
  .main { padding: 16px; }
}