:root {
  --bg: #0f0f12;
  --card: #18181c;
  --text: #f5f5f5;
  --muted: #9ca3af;
  --primary: #c6a75e;
  --primary-contrast: #0f0f12;
  --border: #242429;
  --radius: 12px;
  --shadow: 0 12px 30px rgba(0,0,0,0.25);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  background: #111113;
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
header a { color: #fff; text-decoration: none; margin-right: 14px; }
header .nav a.active { text-decoration: underline; }
.container { max-width: 1200px; margin: 20px auto; padding: 0 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.grid { display: grid; gap: 12px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: var(--primary-contrast);
  text-decoration: none;
  cursor: pointer;
}
.btn.secondary { background: transparent; color: var(--primary); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--border); }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 10px; border-bottom: 1px solid var(--border); text-align: left; }
input, select, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #121216;
  color: var(--text);
}
label { display: block; margin: 8px 0 6px; font-weight: 600; }
.small { color: var(--muted); font-size: 12px; }
.flash { padding: 10px; border-radius: 8px; background: #e5f7ed; border: 1px solid #bce3c8; color: #0f5132; margin-bottom: 12px; }
.tabs { display: flex; gap: 10px; flex-wrap: wrap; }
.tabs a { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; text-decoration: none; color: var(--text); }
.badge { display: inline-block; padding: 4px 8px; border-radius: 999px; background: rgba(198,167,94,0.15); color: var(--primary); font-size: 12px; }
@media (max-width: 700px) {
  header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
}