/* ========== Admin Panel Styles ========== */
:root {
  --admin-sidebar-w: 240px;
  --admin-header-h: 60px;
}

/* ========== Login Page ========== */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 30%, rgba(6, 182, 212, 0.08) 0%, var(--bg-primary) 60%);
}
.login-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px 40px;
  width: 100%; max-width: 420px;
}
.login-card h1 { font-size: 1.6rem; text-align: center; margin-bottom: 4px; }
.login-card .login-sub { text-align: center; color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 32px; }
.login-card .form-group { margin-bottom: 20px; }
.login-card label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.login-card input {
  width: 100%; padding: 12px 16px; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary); font-size: 0.95rem; font-family: inherit;
  outline: none; transition: var(--transition);
}
.login-card input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1); }
.login-card .btn { width: 100%; justify-content: center; margin-top: 8px; }
.login-error {
  background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444; padding: 10px 16px; border-radius: var(--radius-sm);
  font-size: 0.85rem; margin-bottom: 20px; display: none;
}

/* ========== Admin Layout ========== */
.admin-layout { display: flex; min-height: 100vh; }

.admin-sidebar {
  width: var(--admin-sidebar-w); background: var(--bg-secondary);
  border-right: 1px solid var(--border); position: fixed;
  top: 0; left: 0; bottom: 0; z-index: 100;
  display: flex; flex-direction: column;
}
.admin-sidebar .sb-brand {
  padding: 20px 24px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px;
  font-size: 1.1rem; font-weight: 700;
}
.admin-sidebar .sb-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; }
.admin-sidebar .sb-nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; border-radius: var(--radius-sm);
  color: var(--text-secondary); font-size: 0.9rem;
  transition: var(--transition);
}
.admin-sidebar .sb-nav a:hover, .admin-sidebar .sb-nav a.active {
  background: rgba(6, 182, 212, 0.1); color: var(--accent-light);
}
.admin-sidebar .sb-nav a .nav-icon { font-size: 1.1rem; width: 22px; text-align: center; }
.admin-sidebar .sb-footer { padding: 16px 24px; border-top: 1px solid var(--border); }
.admin-sidebar .sb-footer .user-info { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 8px; }
.admin-sidebar .sb-footer .logout-btn {
  display: block; width: 100%; padding: 8px; text-align: center;
  background: transparent; border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-secondary);
  font-size: 0.85rem; cursor: pointer; transition: var(--transition); font-family: inherit;
}
.admin-sidebar .sb-footer .logout-btn:hover { border-color: #ef4444; color: #ef4444; }

.admin-main {
  margin-left: var(--admin-sidebar-w); flex: 1;
  padding: 0; min-height: 100vh; background: var(--bg-primary);
}
.admin-topbar {
  padding: 0 32px; height: var(--admin-header-h);
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border); background: var(--bg-secondary);
  position: sticky; top: 0; z-index: 50;
}
.admin-topbar h2 { font-size: 1.1rem; font-weight: 600; }
.admin-topbar .topbar-actions { display: flex; gap: 12px; align-items: center; }
.admin-content { padding: 32px; }

/* ========== Stats Cards ========== */
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 32px; }
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; display: flex; align-items: center; gap: 16px;
}
.stat-card .stat-icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
}
.stat-card .stat-num { font-size: 1.8rem; font-weight: 700; }
.stat-card .stat-label { color: var(--text-secondary); font-size: 0.85rem; }

/* ========== Table ========== */
.table-wrapper { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.table-toolbar { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.table-toolbar h3 { font-size: 1rem; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 12px 16px; text-align: left; font-size: 0.88rem; }
.data-table th { background: var(--bg-secondary); color: var(--text-secondary); font-weight: 600; border-bottom: 1px solid var(--border); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; }
.data-table td { color: var(--text-primary); border-bottom: 1px solid var(--border); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(6, 182, 212, 0.02); }
.data-table .empty-row td { text-align: center; color: var(--text-muted); padding: 40px; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
.badge-success { background: rgba(16, 185, 129, 0.12); color: #10b981; }
.badge-warning { background: rgba(245, 158, 11, 0.12); color: #f59e0b; }
.badge-danger { background: rgba(239, 68, 68, 0.12); color: #ef4444; }
.badge-info { background: rgba(6, 182, 212, 0.12); color: var(--accent-light); }
.badge-neutral { background: rgba(107, 114, 128, 0.12); color: #9ca3af; }

/* Action buttons in table */
.actions { display: flex; gap: 8px; }
.btn-sm {
  padding: 5px 12px; font-size: 0.8rem; border-radius: 6px;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-secondary); cursor: pointer; transition: var(--transition); font-family: inherit;
}
.btn-sm:hover { border-color: var(--accent); color: var(--accent-light); }
.btn-sm.danger:hover { border-color: #ef4444; color: #ef4444; }
.btn-sm.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-sm.primary:hover { background: var(--accent-dark); }

/* ========== Modal ========== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px; width: 90%; max-width: 560px;
  max-height: 85vh; overflow-y: auto;
}
.modal h3 { font-size: 1.2rem; margin-bottom: 24px; }
.modal .form-group { margin-bottom: 18px; }
.modal label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.modal input, .modal select, .modal textarea {
  width: 100%; padding: 10px 14px; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary); font-size: 0.9rem; font-family: inherit;
  outline: none; transition: var(--transition);
}
.modal input:focus, .modal select:focus, .modal textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1); }
.modal textarea { resize: vertical; min-height: 100px; }
.modal .btn-row { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; }

/* Specs editor */
.specs-editor { display: flex; flex-direction: column; gap: 8px; }
.specs-editor .spec-row { display: flex; gap: 8px; align-items: center; }
.specs-editor .spec-row input { flex: 1; }
.specs-editor .spec-row button {
  width: 30px; height: 30px; border-radius: 6px; border: 1px solid var(--border);
  background: transparent; color: #ef4444; cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center;
}
.specs-editor .add-spec-btn { align-self: flex-start; margin-top: 4px; }

/* Toast */
.toast {
  position: fixed; top: 24px; right: 24px; z-index: 2000;
  padding: 14px 24px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; color: #fff;
  animation: slideIn 0.3s ease;
  box-shadow: var(--shadow-lg);
}
.toast-success { background: #10b981; }
.toast-error { background: #ef4444; }
@keyframes slideIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }

/* Detail modal */
.detail-grid { display: grid; gap: 12px; }
.detail-row { display: flex; }
.detail-row .dl { width: 80px; color: var(--text-muted); font-size: 0.85rem; flex-shrink: 0; }
.detail-row .dv { color: var(--text-primary); font-size: 0.9rem; }

/* Search */
.search-input {
  padding: 8px 14px; background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: 0.88rem;
  outline: none; width: 240px; font-family: inherit;
}
.search-input:focus { border-color: var(--accent); }

/* Responsive */
@media (max-width: 768px) {
  .admin-sidebar { display: none; }
  .admin-main { margin-left: 0; }
  .stats-row { grid-template-columns: 1fr; }
  .admin-content { padding: 16px; }
}