:root {
  --bg: #0b0d12;
  --panel: #12151d;
  --card: #181c27;
  --line: #2a3142;
  --text: #eef2f8;
  --muted: #93a0b8;
  --gold: #f0c14b;
  --gold-2: #c9a227;
  --ok: #3dd68c;
  --danger: #ff6b6b;
  --shadow: 0 18px 40px rgba(0, 0, 0, .35);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Segoe UI", Inter, Roboto, system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #1b2233 0%, var(--bg) 55%);
  color: var(--text);
  display: flex;
}
a { color: var(--gold); text-decoration: none; }
.sidebar {
  width: 250px;
  min-height: 100vh;
  background: #0f1219;
  border-right: 1px solid var(--line);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: sticky;
  top: 0;
}
.brand { display: flex; gap: 10px; align-items: center; }
.brand .bolt { font-size: 28px; }
.brand small { display: block; color: var(--muted); font-size: 12px; }
.sidebar nav { display: flex; flex-direction: column; gap: 6px; }
.sidebar nav a {
  color: var(--text);
  padding: 11px 12px;
  border-radius: 10px;
  background: transparent;
}
.sidebar nav a.active, .sidebar nav a:hover { background: #1d2433; color: var(--gold); }
.side-foot { margin-top: auto; display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; }
.main { flex: 1; min-width: 0; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px 8px;
}
.topbar h1 { margin: 0; font-size: 26px; }
.host { color: var(--muted); font-size: 13px; }
.content { padding: 8px 28px 40px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 14px; font-size: 18px; }
.stat { font-size: 32px; font-weight: 700; color: var(--gold); }
.label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.form { display: grid; gap: 12px; }
.form label { font-size: 13px; color: var(--muted); display: grid; gap: 6px; }
input, textarea, select {
  width: 100%;
  background: #10141c;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  font: inherit;
}
textarea { min-height: 120px; resize: vertical; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  border: 0;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
  background: linear-gradient(180deg, var(--gold), var(--gold-2));
  color: #1a1404;
}
.btn.ghost { background: #232a3a; color: var(--text); }
.btn.danger { background: var(--danger); color: #fff; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); font-size: 14px; }
.badge { padding: 3px 8px; border-radius: 999px; font-size: 12px; background: #223046; }
.ok { color: var(--ok); }
.flash { padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; }
.flash.ok { background: #133226; color: var(--ok); }
.flash.err { background: #3a1518; color: #ffb4b4; }
.preview { max-width: 280px; max-height: 120px; object-fit: contain; border-radius: 10px; background: #000; }
.codebox {
  background: #0b0e14;
  border: 1px dashed var(--gold-2);
  border-radius: 12px;
  padding: 14px;
  word-break: break-all;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 13px;
}
.login-wrap {
  min-height: 100vh;
  width: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card { width: min(420px, 100%); }
@media (max-width: 860px) {
  body { display: block; }
  .sidebar { width: auto; min-height: auto; position: relative; }
  .sidebar nav { flex-direction: row; flex-wrap: wrap; }
}