:root {
  color-scheme: dark;
  --bg: #05070b;
  --panel: #0d1118;
  --panel-2: #111722;
  --border: #202b38;
  --text: #edf7fa;
  --muted: #80909b;
  --accent: #00dff6;
  --green: #39dc91;
  --red: #ff6674;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 85% 0, #07303b 0, transparent 36%), var(--bg);
  color: var(--text);
  font: 14px/1.5 Inter, ui-sans-serif, system-ui, sans-serif;
}
button, input, select, textarea { font: inherit; }
.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0; }
.login-card, .panel, .stats article {
  border: 1px solid var(--border);
  background: rgba(13, 17, 24, .94);
  border-radius: 14px;
}
.login-card { width: min(420px, 100%); margin: 9vh auto; padding: 34px; }
.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 12px;
  color: var(--accent);
  font-weight: 800;
}
.eyebrow { margin: 22px 0 5px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-size: clamp(27px, 4vw, 40px); }
h2 { margin-bottom: 18px; font-size: 18px; }
.muted { color: var(--muted); }
form { display: grid; gap: 14px; }
label { display: grid; gap: 7px; color: #aebbc3; font-size: 12px; font-weight: 700; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #070a0f;
  color: var(--text);
  padding: 11px 12px;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
button {
  border: 0;
  border-radius: 9px;
  padding: 11px 15px;
  background: var(--accent);
  color: #001014;
  font-weight: 800;
  cursor: pointer;
}
button.secondary { border: 1px solid var(--border); background: var(--panel-2); color: var(--text); }
.error { color: var(--red); }
.topbar, .panel-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar { margin-bottom: 26px; }
.topbar .eyebrow { margin-top: 0; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 12px; }
.stats article { padding: 18px; }
.stats span { display: block; color: var(--muted); font-size: 12px; }
.stats strong { display: block; margin-top: 6px; font-size: 25px; }
.grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 12px; }
.panel { padding: 23px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.created-key { display: grid; gap: 10px; margin-top: 18px; padding: 15px; border: 1px solid #216d59; border-radius: 10px; background: #08231d; }
.created-key code { overflow-wrap: anywhere; color: var(--green); }
.checkpoint-note { display: grid; gap: 5px; margin-top: 20px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; color: var(--muted); }
.checkpoint-note strong { color: var(--text); }
.keys-panel { margin-top: 12px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 820px; }
th, td { padding: 12px 10px; border-top: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: 11px; text-transform: uppercase; }
td code { color: #b8eef4; }
.badge { display: inline-block; padding: 3px 7px; border-radius: 999px; background: var(--panel-2); }
.badge.active { color: var(--green); }
.badge.revoked, .badge.expired { color: var(--red); }
td button { padding: 6px 9px; font-size: 11px; }
@media (max-width: 760px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .shell { padding-top: 28px; }
}