:root {
  --bg: #0f1218;
  --card: #171b24;
  --line: #2a3140;
  --text: #e8ecf4;
  --muted: #8b93a7;
  --accent: #ff4d6d;
  --ok: #3ecf8e;
  --warn: #f5a524;
  --err: #ff5c5c;
  --radius: 14px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 10% -10%, #1a2233, var(--bg));
  color: var(--text);
  min-height: 100vh;
}
a { color: #9ec1ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); font-size: 13px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 14px 0; }

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.auth-card, .panel {
  background: rgba(23, 27, 36, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  width: min(440px, 100%);
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.auth-card h1, .page h1 { margin: 0 0 8px; font-size: 22px; }
label { display: block; margin: 10px 0; font-size: 13px; color: var(--muted); }
input, select, textarea, button {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0e121a;
  color: var(--text);
  font: inherit;
}
textarea { min-height: 72px; resize: vertical; }
button, .btn {
  display: inline-block;
  width: auto;
  background: linear-gradient(135deg, #ff6b4a, var(--accent));
  border: 0;
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  padding: 10px 16px;
  border-radius: 10px;
  text-decoration: none;
}
button.secondary, .btn.secondary {
  background: #232a38;
  color: var(--text);
  border: 1px solid var(--line);
}
button.danger, .btn.danger { background: #a11f3a; }
.alert {
  padding: 10px 12px;
  border-radius: 10px;
  margin: 10px 0;
  font-size: 13px;
}
.alert.ok { background: rgba(62,207,142,.12); color: var(--ok); }
.alert.err { background: rgba(255,92,92,.12); color: var(--err); }

.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side {
  background: #12161f;
  border-right: 1px solid var(--line);
  padding: 20px 14px;
}
.side .brand { font-weight: 800; margin-bottom: 18px; letter-spacing: .02em; }
.side a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text);
  margin-bottom: 4px;
}
.side a:hover, .side a.active { background: #1c2330; text-decoration: none; }
.main { padding: 22px; }
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 16px 0 22px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}
.stat b { display: block; font-size: 22px; margin-top: 4px; }
.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; background: #141923; }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--line);
}
.tag.active, .tag.licensed { color: var(--ok); border-color: rgba(62,207,142,.35); }
.tag.revoked, .tag.pirate { color: var(--err); border-color: rgba(255,92,92,.35); }
.tag.expired, .tag.unauthorized { color: var(--warn); border-color: rgba(245,165,36,.35); }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 12px 0; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 860px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.form-grid .full { grid-column: 1 / -1; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; word-break: break-all; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}