:root {
  color-scheme: dark;
  --bg: #05090e;
  --panel: #0a141dcc;
  --panel-strong: #09121a;
  --border: #d6a6424d;
  --gold: #d6a642;
  --gold-light: #f3d27a;
  --blue: #4db7ff;
  --text: #f4e9d0;
  --muted: #94a3af;
  --danger: #d84a4e;
  --success: #27c477;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, #153044 0, transparent 35%),
    linear-gradient(140deg, #04070b, #07111a 55%, #05080d);
  color: var(--text);
  font: 14px/1.5 "Segoe UI", Arial, sans-serif;
}
a { color: var(--gold-light); text-decoration: none; }
a:hover { color: white; }
.topbar {
  height: 78px;
  padding: 14px max(24px, calc((100vw - 1300px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: #050a10d9;
}
.brand {
  color: var(--gold-light);
  font: 700 25px Georgia, serif;
  letter-spacing: .4px;
}
.subtitle { color: var(--muted); font-size: 12px; }
.top-actions, .heading-row, .actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.page { max-width: 1300px; margin: 0 auto; padding: 28px 24px 60px; }
.heading-row { justify-content: space-between; margin-bottom: 18px; }
.heading-row.compact { margin-bottom: 10px; }
h1, h2 { font-family: Georgia, serif; color: var(--gold-light); }
h1 { margin: 0 0 8px; font-size: 28px; }
h2 { margin: 0 0 16px; font-size: 18px; }
p { margin: 8px 0; }
.muted { color: var(--muted); }
.mono, .license-key { font-family: Consolas, "Cascadia Mono", monospace; }
.panel {
  margin-bottom: 20px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 18px 45px #0006;
}
.login-panel, .form-panel, .key-panel { max-width: 620px; margin: 7vh auto 0; }
.stack { display: grid; gap: 14px; }
label { display: grid; gap: 6px; color: #d4dee6; }
input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  color: var(--text);
  background: #050d14;
  border: 1px solid #7ca2bd42;
  border-radius: 8px;
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px #4db7ff22;
}
textarea { resize: vertical; }
.duration-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 15px;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  background: #101a22;
  cursor: pointer;
  font-weight: 600;
}
.button.primary {
  color: #120d03;
  border-color: #f3d27a99;
  background: linear-gradient(#efc35e, #b67e17);
}
.button.danger { border-color: #ef5b5e88; background: #8f242a; color: white; }
.button.ghost { background: transparent; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px 10px; text-align: left; border-bottom: 1px solid #b4d2e61f; }
th { color: var(--gold-light); font-size: 12px; text-transform: uppercase; letter-spacing: .45px; }
tbody tr:hover { background: #4db7ff0a; }
.empty { padding: 36px; color: var(--muted); text-align: center; }
.badge {
  display: inline-flex;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid currentColor;
  font-size: 12px;
}
.badge.success { color: var(--success); }
.badge.danger { color: var(--danger); }
.muted-badge { color: var(--muted); }
.notice { margin-bottom: 16px; padding: 11px 14px; border-radius: 8px; border: 1px solid; }
.notice.error { color: #ffabad; background: #56171c99; }
.notice.success { color: #8bf0b9; background: #0c4d3199; }
.license-key {
  margin: 24px 0;
  padding: 18px;
  overflow-wrap: anywhere;
  color: var(--gold-light);
  background: #05090d;
  border: 1px dashed var(--gold);
  border-radius: 10px;
  font-size: clamp(16px, 3vw, 25px);
  text-align: center;
}
.license-key-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
.compact-key {
  flex: 1;
  margin: 0;
  padding: 12px 16px;
  font-size: 17px;
  text-align: left;
}
.copy-key.copied {
  color: #07130d;
  border-color: #8bf0b9;
  background: #27c477;
}
.old-key-warning { max-width: 660px; }
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
dl { display: grid; grid-template-columns: 140px 1fr; gap: 9px 18px; }
dt { color: var(--muted); }
dd { margin: 0; }
form { margin: 0; }
@media (max-width: 780px) {
  .detail-grid, .duration-grid { grid-template-columns: 1fr; }
  .heading-row { align-items: flex-start; }
  .license-key-row { align-items: stretch; flex-direction: column; }
  .page { padding: 20px 12px 40px; }
}