:root {
  --bg: #0b1220;
  --panel: #111a2b;
  --panel-2: #162238;
  --line: #22314d;
  --text: #e6edf7;
  --muted: #8b9bb4;
  --accent: #35d0a0;
  --accent-2: #4c8dff;
  --danger: #ff6b6b;
  --warn: #ffb648;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 15% -10%, #16243c 0%, var(--bg) 55%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }

.side {
  width: 208px; flex: 0 0 208px;
  background: rgba(10, 17, 30, .85);
  border-right: 1px solid var(--line);
  padding: 18px 14px;
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 4px;
}

.brand {
  font-weight: 700; font-size: 15px; letter-spacing: .3px;
  padding: 6px 8px 16px; color: #fff; display: flex; align-items: center; gap: 8px;
}
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }

.nav a {
  display: block; padding: 9px 10px; border-radius: 8px; color: var(--muted);
  font-size: 13.5px;
}
.nav a:hover { background: var(--panel-2); color: var(--text); text-decoration: none; }
.nav a.on { background: rgba(53, 208, 160, .12); color: var(--accent); }

.side-foot { margin-top: auto; }
.side-foot button {
  width: 100%; padding: 9px; border-radius: 8px; border: 1px solid var(--line);
  background: transparent; color: var(--muted); cursor: pointer; font-size: 13px;
}
.side-foot button:hover { color: var(--danger); border-color: var(--danger); }

main { flex: 1; padding: 26px 30px 48px; max-width: 1180px; }

h1 { font-size: 21px; margin: 0 0 4px; font-weight: 650; }
.sub { color: var(--muted); font-size: 13px; margin-bottom: 22px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13.5px; }
.flash.ok { background: rgba(53, 208, 160, .12); border: 1px solid rgba(53, 208, 160, .35); color: #7ff0c9; }
.flash.err { background: rgba(255, 107, 107, .1); border: 1px solid rgba(255, 107, 107, .35); color: #ffb0b0; }

.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: 1.35fr 1fr; }
@media (max-width: 900px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: linear-gradient(180deg, var(--panel) 0%, #0e1626 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px;
}
.card h2 { font-size: 14px; margin: 0 0 12px; color: var(--muted); font-weight: 600; letter-spacing: .3px; }

.stat .num { font-size: 26px; font-weight: 700; line-height: 1.2; }
.stat .hint { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.num.green { color: var(--accent); }
.num.blue { color: var(--accent-2); }
.num.warn { color: var(--warn); }
.num.red { color: var(--danger); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; white-space: nowrap; }
td.mono, .mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .4px; }
tr:hover td { background: rgba(76, 141, 255, .04); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; white-space: nowrap; }
.badge.active { background: rgba(53, 208, 160, .14); color: #7ff0c9; }
.badge.disabled { background: rgba(255, 182, 72, .14); color: var(--warn); }
.badge.expired { background: rgba(139, 155, 180, .14); color: var(--muted); }
.badge.pin { background: rgba(76, 141, 255, .14); color: #9dc0ff; }

form.inline { display: inline; }
input, select, textarea {
  background: #0c1524; color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; font-size: 13px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent-2); }
input[type=checkbox] { width: auto; }
label { color: var(--muted); font-size: 12.5px; }

.btn {
  display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text); cursor: pointer; font-size: 13px;
}
.btn:hover { border-color: var(--accent-2); text-decoration: none; }
.btn.primary { background: linear-gradient(135deg, #2ec99a, #1e9f7a); border-color: transparent; color: #04140f; font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--danger); border-color: rgba(255, 107, 107, .4); }
.btn.small { padding: 5px 10px; font-size: 12px; }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.field label { display: block; margin-bottom: 5px; }
.field input, .field select, .field textarea { width: 100%; }

.chart { display: flex; align-items: flex-end; gap: 3px; height: 120px; margin-top: 6px; }
.chart .bar { flex: 1; background: linear-gradient(180deg, var(--accent), #1e7f68); border-radius: 3px 3px 0 0; min-height: 2px; }
.chart-axis { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; margin-top: 6px; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.mt { margin-top: 14px; }
.mb { margin-bottom: 14px; }
.notice {
  border: 1px dashed var(--line); border-radius: 8px; padding: 10px 12px; color: var(--muted); font-size: 12.5px;
  background: rgba(76, 141, 255, .04);
}
.notice strong { color: var(--warn); }

.kv { display: grid; grid-template-columns: 110px 1fr; gap: 8px 10px; font-size: 13px; }
.kv .k { color: var(--muted); }

.pager { display: flex; gap: 8px; margin-top: 14px; align-items: center; }
.pager a, .pager span { padding: 5px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 12.5px; color: var(--muted); }

pre.dump { background: #0a1320; border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow: auto; font-size: 12px; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { width: 360px; }
.login-card h1 { font-size: 19px; margin-bottom: 6px; }
.login-card .sub { margin-bottom: 18px; }