/* ===== Admin System Styles ===== */
:root {
  --admin-sidebar-w: 220px;
  --admin-bg: #f0f2f5;
  --admin-sidebar-bg: #1a1d2e;
  --admin-sidebar-hover: #2a2d3e;
  --admin-accent: #4f6ef7;
  --admin-accent-hover: #3a5be0;
  --admin-text: #1e293b;
  --admin-muted: #64748b;
  --admin-border: #e2e8f0;
  --admin-card: #ffffff;
  --admin-danger: #ef4444;
  --admin-success: #22c55e;
  --admin-warning: #f59e0b;
}

/* Layout */
.admin-wrap { display: flex; min-height: 100vh; background: var(--admin-bg); font-family: 'Pretendard', -apple-system, sans-serif; }

/* Sidebar */
.admin-sidebar {
  width: var(--admin-sidebar-w);
  background: var(--admin-sidebar-bg);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh;
  z-index: 100; transition: transform .25s;
}
.admin-sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.admin-sidebar-logo h2 { color: #fff; font-size: 15px; font-weight: 700; margin: 0; }
.admin-sidebar-logo span { color: #7c85a8; font-size: 11px; }

.admin-nav { flex: 1; overflow-y: auto; padding: 12px 0; }
.admin-nav-section { padding: 12px 16px 4px; color: #7c85a8; font-size: 10px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.admin-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 20px; color: #b0b7cc; text-decoration: none;
  font-size: 13.5px; border-radius: 0; transition: all .15s;
}
.admin-nav a:hover { background: var(--admin-sidebar-hover); color: #fff; }
.admin-nav a.active { background: var(--admin-accent); color: #fff; }
.admin-nav a .nav-icon { width: 16px; text-align: center; flex-shrink: 0; }
.admin-nav-badge { background: var(--admin-danger); color: #fff; font-size: 10px; padding: 1px 6px; border-radius: 10px; margin-left: auto; }

.admin-sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,.08); }
.admin-sidebar-footer button { width: 100%; background: transparent; border: 1px solid rgba(255,255,255,.15); color: #b0b7cc; padding: 8px 12px; border-radius: 6px; font-size: 13px; cursor: pointer; transition: all .15s; }
.admin-sidebar-footer button:hover { background: rgba(255,255,255,.08); color: #fff; }

/* Main */
.admin-main { margin-left: var(--admin-sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.admin-topbar { background: var(--admin-card); border-bottom: 1px solid var(--admin-border); padding: 0 28px; height: 56px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; }
.admin-topbar h1 { font-size: 16px; font-weight: 600; color: var(--admin-text); margin: 0; }
.admin-topbar-right { display: flex; align-items: center; gap: 12px; }
.admin-user-badge { background: #e8ecff; color: var(--admin-accent); padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }

.admin-content { padding: 28px; flex: 1; }

/* Cards */
.admin-card { background: var(--admin-card); border-radius: 10px; border: 1px solid var(--admin-border); padding: 20px; }
.admin-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.admin-card-header h3 { font-size: 14px; font-weight: 600; color: var(--admin-text); margin: 0; }

/* Stat Cards */
.admin-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--admin-card); border-radius: 10px; padding: 20px; border: 1px solid var(--admin-border); display: flex; align-items: center; gap: 16px; }
.stat-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.stat-icon.blue { background: #eff2ff; }
.stat-icon.green { background: #f0fdf4; }
.stat-icon.orange { background: #fff7ed; }
.stat-icon.red { background: #fff1f2; }
.stat-info h4 { font-size: 22px; font-weight: 700; color: var(--admin-text); margin: 0 0 2px; }
.stat-info p { font-size: 12px; color: var(--admin-muted); margin: 0; }

/* Table */
.admin-table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.admin-table th { background: #f8fafc; color: var(--admin-muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; padding: 10px 14px; border-bottom: 1px solid var(--admin-border); text-align: left; white-space: nowrap; }
.admin-table td { padding: 12px 14px; border-bottom: 1px solid #f1f5f9; color: var(--admin-text); vertical-align: middle; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: #f8fafc; }
.admin-table .truncate { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Badges */
.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge-green { background: #dcfce7; color: #16a34a; }
.badge-red { background: #fee2e2; color: #dc2626; }
.badge-blue { background: #dbeafe; color: #2563eb; }
.badge-orange { background: #ffedd5; color: #ea580c; }
.badge-gray { background: #f1f5f9; color: #64748b; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 7px; font-size: 13px; font-weight: 500; cursor: pointer; border: none; transition: all .15s; text-decoration: none; }
.btn-primary { background: var(--admin-accent); color: #fff; }
.btn-primary:hover { background: var(--admin-accent-hover); }
.btn-outline { background: transparent; color: var(--admin-text); border: 1px solid var(--admin-border); }
.btn-outline:hover { background: #f8fafc; }
.btn-danger { background: transparent; color: var(--admin-danger); border: 1px solid #fecaca; }
.btn-danger:hover { background: #fff1f2; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; border-radius: 6px; }

/* Action buttons row */
.action-btns { display: flex; gap: 6px; align-items: center; }

/* Toolbar */
.admin-toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.admin-toolbar-right { margin-left: auto; display: flex; gap: 8px; }
.admin-search { position: relative; }
.admin-search input { padding: 8px 12px 8px 34px; border: 1px solid var(--admin-border); border-radius: 7px; font-size: 13px; outline: none; width: 200px; background: #fff; color: var(--admin-text); }
.admin-search input:focus { border-color: var(--admin-accent); }
.admin-search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--admin-muted); font-size: 14px; }
.admin-select { padding: 8px 12px; border: 1px solid var(--admin-border); border-radius: 7px; font-size: 13px; outline: none; background: #fff; color: var(--admin-text); cursor: pointer; }
.admin-select:focus { border-color: var(--admin-accent); }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 16px; }
.modal { background: var(--admin-card); border-radius: 12px; width: 100%; max-width: 640px; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,.2); }
.modal-header { padding: 20px 24px 16px; border-bottom: 1px solid var(--admin-border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h3 { font-size: 15px; font-weight: 600; margin: 0; }
.modal-header button { background: none; border: none; cursor: pointer; color: var(--admin-muted); font-size: 18px; line-height: 1; padding: 4px; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--admin-border); display: flex; justify-content: flex-end; gap: 10px; }

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--admin-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.form-control { width: 100%; padding: 9px 12px; border: 1px solid var(--admin-border); border-radius: 7px; font-size: 13.5px; color: var(--admin-text); outline: none; box-sizing: border-box; background: #fff; font-family: inherit; }
.form-control:focus { border-color: var(--admin-accent); box-shadow: 0 0 0 3px rgba(79,110,247,.12); }
textarea.form-control { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-check { display: flex; align-items: center; gap: 8px; font-size: 13.5px; cursor: pointer; }
.form-check input { width: 16px; height: 16px; cursor: pointer; accent-color: var(--admin-accent); }

/* Pagination */
.admin-pagination { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; }
.admin-pagination-info { font-size: 12px; color: var(--admin-muted); }
.pagination-btns { display: flex; gap: 4px; }
.pagination-btns button { padding: 5px 10px; border: 1px solid var(--admin-border); background: #fff; color: var(--admin-text); border-radius: 5px; font-size: 12px; cursor: pointer; transition: all .15s; }
.pagination-btns button:hover:not(:disabled) { background: var(--admin-accent); color: #fff; border-color: var(--admin-accent); }
.pagination-btns button.active { background: var(--admin-accent); color: #fff; border-color: var(--admin-accent); }
.pagination-btns button:disabled { opacity: .4; cursor: not-allowed; }

/* Login */
.admin-login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1a1d2e 0%, #2a2d4e 100%); padding: 16px; }
.admin-login-box { background: #fff; border-radius: 14px; padding: 40px 36px; width: 100%; max-width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.admin-login-box .login-logo { text-align: center; margin-bottom: 28px; }
.admin-login-box .login-logo h1 { font-size: 22px; font-weight: 800; color: var(--admin-text); margin: 8px 0 4px; }
.admin-login-box .login-logo p { font-size: 12px; color: var(--admin-muted); margin: 0; }
.admin-login-box .login-badge { display: inline-block; background: #eff2ff; color: var(--admin-accent); padding: 2px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; margin-bottom: 6px; }
.login-input-group { margin-bottom: 14px; }
.login-input-group label { display: block; font-size: 12px; font-weight: 600; color: var(--admin-muted); margin-bottom: 6px; }
.login-input-group input { width: 100%; padding: 11px 14px; border: 1.5px solid var(--admin-border); border-radius: 8px; font-size: 14px; outline: none; box-sizing: border-box; transition: border-color .15s; }
.login-input-group input:focus { border-color: var(--admin-accent); }
.login-btn { width: 100%; padding: 12px; background: var(--admin-accent); color: #fff; border: none; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 6px; transition: background .15s; }
.login-btn:hover { background: var(--admin-accent-hover); }
.login-error { background: #fff1f2; color: var(--admin-danger); font-size: 12.5px; padding: 9px 12px; border-radius: 7px; margin-bottom: 14px; border: 1px solid #fecaca; }

/* Dashboard recent list */
.recent-list { list-style: none; padding: 0; margin: 0; }
.recent-list li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid #f1f5f9; font-size: 13px; }
.recent-list li:last-child { border-bottom: none; }
.recent-list .rl-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--admin-accent); flex-shrink: 0; }
.recent-list .rl-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--admin-text); }
.recent-list .rl-meta { color: var(--admin-muted); font-size: 11px; white-space: nowrap; }

/* Empty state */
.empty-state { text-align: center; padding: 48px 0; color: var(--admin-muted); }
.empty-state .empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-state p { font-size: 13.5px; margin: 0; }

/* Toast */
.admin-toast { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast-item { background: #1e293b; color: #fff; padding: 12px 20px; border-radius: 8px; font-size: 13px; animation: slideUp .2s ease; box-shadow: 0 4px 16px rgba(0,0,0,.2); }
.toast-item.success { border-left: 3px solid var(--admin-success); }
.toast-item.error { border-left: 3px solid var(--admin-danger); }
@keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Responsive */
@media (max-width: 768px) {
  .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .admin-stats { grid-template-columns: 1fr 1fr; }
}