:root {
  --bg: #0b0f1a; --bg-card: #12182a; --border: #243058; --text: #e6eaf5; --text-muted: #8e9bb8;
  --accent: #00e0ff; --accent2: #7b5cff; --accent3: #00ff9d;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: Inter, system-ui, sans-serif; }
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: #0d1220; border-right: 1px solid var(--border); padding: 20px 14px; position: sticky; top: 0; height: 100vh; }
.sidebar-brand { font-weight: 800; margin-bottom: 24px; }
.sidebar-brand a { display:block; color: var(--accent); margin-bottom: 6px; }
.sidebar-brand span { color: var(--text-muted); font-size: 13px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 6px; }
.nav-item { color: var(--text-muted); padding: 10px 12px; border-radius: 10px; transition:.2s; display:block; }
.nav-item:hover, .nav-item.active { color: var(--text); background: rgba(255,255,255,.06); }
.admin-main { padding: 24px; max-width: 1200px; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.admin-user { color: var(--text-muted); font-size: 14px; }
.alert { padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; }
.alert-success { background: rgba(0,255,157,.08); color: var(--accent3); border:1px solid rgba(0,255,157,.2); }
.alert-error { background: rgba(255,80,80,.08); color: #ff6b6b; border:1px solid rgba(255,80,80,.2); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card { background: var(--bg-card); border:1px solid var(--border); border-radius: 14px; padding: 16px; }
.stat-value { font-size: 26px; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.panel { background: var(--bg-card); border:1px solid var(--border); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
.panel h3 { margin-bottom: 10px; }
.toolbar { display:flex; gap:10px; margin-bottom: 12px; flex-wrap: wrap; }
.btn { display:inline-block; padding:8px 14px; background:linear-gradient(135deg, var(--accent), var(--accent2)); color:#0b0f1a; border-radius:10px; font-weight:700; border:none; }
.btn-secondary { background: rgba(255,255,255,.06); color: var(--text); border:1px solid var(--border); }
.link { background:none; border:none; color: var(--accent); cursor:pointer; font-size:13px; text-decoration: none; }
.link-danger { color:#ff6b6b; }

.table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 14px; }
.table th, .table td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); }
.table th { color: var(--text-muted); font-weight: 600; }
.table a { color: var(--accent); }
.actions { display:flex; gap:10px; align-items:center; }

.form-group { margin-bottom: 12px; }
.form-group label { display:block; color: var(--text-muted); font-size: 13px; margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 12px; background: #0b0f1a; border:1px solid var(--border); border-radius: 10px; color: var(--text);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 10px; margin-top: 12px; }
.form-inline { display: grid; grid-template-columns: 1fr 1fr 2fr 80px auto; gap: 10px; align-items: end; }

.login-box { max-width: 360px; margin: 80px auto; background: var(--bg-card); border:1px solid var(--border); border-radius: 16px; padding: 24px; }
.login-box h2 { margin-bottom: 14px; }
.login-box input { width: 100%; padding: 10px 12px; margin-bottom: 10px; background: #0b0f1a; border:1px solid var(--border); border-radius: 10px; color: var(--text); }

@media (max-width: 768px) {
  .admin-layout { grid-template-columns: 1fr; }
  .sidebar { height: auto; position: relative; }
  .form-inline { grid-template-columns: 1fr; }
}