:root {
  --bg: #0c0e12;
  --panel: #141820;
  --line: #252b36;
  --text: #e8eaef;
  --muted: #8b93a7;
  --accent: #5b8cff;
  --ok: #3ecf8e;
  --bad: #ff6b6b;
  --font: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font: 15px/1.45 var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 400px at 10% -10%, #1a2744 0%, transparent 55%),
    radial-gradient(700px 360px at 100% 0%, #1c1630 0%, transparent 50%),
    var(--bg);
}
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  background: rgba(12, 14, 18, 0.85);
  z-index: 10;
}
.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
  font-size: 18px;
}
nav { display: flex; gap: 14px; align-items: center; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--text); }
main { max-width: 980px; margin: 0 auto; padding: 28px 20px 64px; }
h1 { font-size: 28px; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 18px; margin: 28px 0 12px; }
.lead { color: var(--muted); max-width: 42rem; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: 13px; margin-top: 12px; }
.panel { padding: 8px 0 24px; }
.btn {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--line);
  color: var(--text);
  text-decoration: none;
  border: 0;
  cursor: pointer;
  font: inherit;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.ghost { background: transparent; border: 1px solid var(--line); }
.btn.danger { background: #3a1f24; color: #ffb4b4; }
.hidden { display: none !important; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.card .k { font-family: ui-monospace, Consolas, monospace; font-size: 13px; word-break: break-all; }
.card .tag {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #1e2a22;
  color: var(--ok);
  margin-bottom: 8px;
}
.card .tag.off { background: #2a1e1e; color: var(--bad); }
.stats .card strong { display: block; font-size: 26px; margin-top: 4px; }
.form {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}
.form label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.form input {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
  font: inherit;
}
.form button { align-self: end; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-weight: 600; background: var(--panel); }
td code { font-size: 12px; }
.out {
  background: #0a0c10;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
  font-size: 12px;
}
.foot { text-align: center; padding: 24px; font-size: 12px; }