@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --admin-bg: #0f172a;
  --admin-sidebar: #1e293b;
  --admin-card: #1e293b;
  --admin-text: #f8fafc;
  --admin-text-dim: #94a3b8;
  --admin-primary: #3b82f6;
  --admin-danger: #ef4444;
  --admin-success: #10b981;
  --admin-border: rgba(255, 255, 255, 0.1);
  --radius: 8px;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--admin-bg);
  color: var(--admin-text);
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.admin-sidebar {
  width: 250px;
  background: var(--admin-sidebar);
  border-right: 1px solid var(--admin-border);
  display: flex;
  flex-direction: column;
}

.admin-brand {
  padding: 1.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  border-bottom: 1px solid var(--admin-border);
  color: #fff;
  text-decoration: none;
}

.admin-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.nav-link {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--admin-text-dim);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}

.nav-link:hover, .nav-link.active {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-left: 3px solid var(--admin-primary);
}

.admin-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.admin-header {
  padding: 1rem 2rem;
  background: var(--admin-sidebar);
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-content {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--admin-card);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--admin-border);
}

.stat-card h4 {
  margin: 0 0 0.5rem;
  color: var(--admin-text-dim);
  font-size: 0.9rem;
  text-transform: uppercase;
}

.stat-card .value {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--admin-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.data-table th, .data-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--admin-border);
}

.data-table th {
  background: rgba(0, 0, 0, 0.2);
  font-weight: 600;
  color: var(--admin-text-dim);
  text-transform: uppercase;
  font-size: 0.8rem;
}

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  color: #fff;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.85;
}

.btn-danger {
  background: var(--admin-danger);
}

.btn-primary {
  background: var(--admin-primary);
}

.btn-success {
  background: var(--admin-success);
}

.badge {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.pending { background: #f59e0b; color: #fff; }
.badge.active { background: var(--admin-success); color: #fff; }

.section-pane {
  display: none;
}

.section-pane.active {
  display: block;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--admin-text-dim);
  font-weight: 500;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 0.75rem;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--admin-border);
  border-radius: var(--radius);
  color: #fff;
  font-family: inherit;
}