:root {
  --bg: #0c1116;
  --card: #151b22;
  --text: #e7edf3;
  --muted: #9aa7b2;
  --accent: #3dd6a5;
  --border: #22303c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% 10%, #1d2630 0%, var(--bg) 55%);
  color: var(--text);
}

.admin-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 17, 22, 0.7);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
}

.brand { font-weight: 700; letter-spacing: 0.05em; }

.admin-top a {
  color: var(--text);
  text-decoration: none;
  margin-left: 16px;
}

.admin-wrap {
  padding: 28px;
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  background: linear-gradient(160deg, var(--card), #0e1216 70%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  margin-bottom: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

h1, h2 { margin: 0 0 12px; }

.muted { color: var(--muted); }

.alert {
  background: rgba(255, 86, 86, 0.1);
  border: 1px solid rgba(255, 86, 86, 0.35);
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
}

form label {
  display: block;
  margin-bottom: 12px;
  font-weight: 600;
}

input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1116;
  color: var(--text);
}

button {
  margin-top: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: #0b1116;
  font-weight: 700;
  cursor: pointer;
}

.kv {
  list-style: none;
  padding: 0;
  margin: 0;
}

.kv li {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.08);
}

.kv li:last-child { border-bottom: none; }

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
  margin-top: 8px;
}

.qr { margin-top: 10px; border-radius: 8px; background: #fff; padding: 6px; }