:root {
  --bg: #0f172a;
  --panel: #111827;
  --card: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #0f766e;
  --accent-hover: #0d9488;
  --danger: #b91c1c;
  --border: #334155;
  --ok: #059669;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(160deg, #0b1220 0%, #134e4a 55%, #0f172a 100%);
  color: var(--text);
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: #fecaca; }
.panel.login {
  max-width: 420px;
  margin: 10vh auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}
.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem 0.5rem;
}
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
}
.tabs button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  cursor: pointer;
}
.tabs button.active {
  background: var(--accent);
  border-color: var(--accent);
}
main { padding: 0 1.5rem 2rem; }
.grid.two {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
  background: color-mix(in srgb, var(--card) 92%, black);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
label {
  display: block;
  margin: 0.75rem 0 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}
input, select, button {
  font: inherit;
}
input, select {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  padding: 0.55rem 0.7rem;
}
button {
  margin-top: 0.9rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: white;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
}
button:hover { background: var(--accent-hover); }
button.ghost {
  background: transparent;
  border: 1px solid var(--border);
}
button.danger { background: var(--danger); }
.checks label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.35rem 0;
  color: var(--text);
}
.checks input { width: auto; }
.table { overflow: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th, td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 0.45rem 0.35rem;
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; }
.keybox {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--ok);
  background: rgba(5, 150, 105, 0.12);
}
.keybox code {
  display: block;
  word-break: break-all;
  margin: 0.5rem 0;
}
.status {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: #334155;
}
.status.active { background: rgba(5, 150, 105, 0.25); color: #6ee7b7; }
.status.suspended, .status.revoked, .status.expired { background: rgba(185, 28, 28, 0.25); color: #fecaca; }