:root{--sidebar-w: 220px;--sidebar-bg: #1e1e2f;--sidebar-hover: #2a2a3d;--sidebar-active: #6366f1;--card-bg: #fff;--card-border: #e5e7eb;--card-shadow: 0 1px 3px rgba(0,0,0,.08)}.admin-body{margin:0;background:#f5f5f9;min-height:100vh}.login-overlay{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#f5f5f9,#eaeaef)}.login-box{background:#fff;border-radius:12px;padding:40px 36px 30px;width:380px;box-shadow:0 4px 24px #00000014}.login-header{display:flex;align-items:center;justify-content:center;gap:10px;font-size:1.25rem;font-weight:700;margin-bottom:28px;color:#1f2937}.login-header .logo-icon{background:var(--sidebar-active);color:#fff;border-radius:6px;padding:4px 8px;font-size:.85rem;font-family:monospace}.login-submit{width:100%;margin-top:8px;justify-content:center}.login-error{color:#ef4444;font-size:.85rem;min-height:20px;margin-bottom:4px}.login-footer{text-align:center;margin-top:20px}.admin-back-link{color:var(--accent, #6366f1);text-decoration:none;font-size:.9rem}.admin-back-link:hover{text-decoration:underline}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:5px;font-weight:600;font-size:.88rem;color:#374151}.form-group input{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:.95rem;box-sizing:border-box;transition:border .2s}.form-group input:focus{outline:none;border-color:var(--sidebar-active);box-shadow:0 0 0 3px #6366f11f}.admin-layout{display:flex;min-height:100vh}.admin-sidebar{width:var(--sidebar-w);background:var(--sidebar-bg);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:20px 20px 24px;font-size:1.15rem;font-weight:700;color:#fff;border-bottom:1px solid rgba(255,255,255,.06)}.sidebar-brand .logo-icon{background:var(--sidebar-active);color:#fff;border-radius:6px;padding:3px 7px;font-size:.8rem;font-family:monospace}.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:4px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:8px;color:#9ca3af;text-decoration:none;font-size:.93rem;transition:background .15s,color .15s}.sidebar-item:hover{background:var(--sidebar-hover);color:#e5e7eb}.sidebar-item.active{background:var(--sidebar-active);color:#fff}.sidebar-footer{padding:14px 10px;border-top:1px solid rgba(255,255,255,.06)}.btn-logout{width:100%;padding:10px;background:transparent;border:1px solid rgba(255,255,255,.12);border-radius:8px;color:#9ca3af;cursor:pointer;font-size:.9rem;transition:all .15s}.btn-logout:hover{background:#ef444426;border-color:#ef44444d;color:#fca5a5}.admin-main{flex:1;margin-left:var(--sidebar-w);padding:28px 32px;min-height:100vh}.admin-page-title{font-size:1.4rem;font-weight:700;margin:0 0 20px;color:#1f2937}.stats-cards{display:flex;gap:16px;margin-bottom:24px}.stat-card{flex:1;background:var(--card-bg);border:1px solid var(--card-border);border-radius:10px;padding:20px 22px;box-shadow:var(--card-shadow)}.stat-label{font-size:.85rem;color:#6b7280;margin-bottom:6px}.stat-value{font-size:1.75rem;font-weight:700;color:var(--sidebar-active)}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px;flex-wrap:wrap}.page-size-selector{font-size:.88rem;color:#6b7280;display:flex;align-items:center;gap:6px}.page-size-selector select{padding:6px 10px;border:1px solid #d1d5db;border-radius:6px;font-size:.88rem;background:#fff;cursor:pointer}.pagination-info{display:flex;align-items:center;gap:10px;font-size:.88rem;color:#6b7280}.pagination-info strong{color:#1f2937}.messages-table-wrap{background:var(--card-bg);border:1px solid var(--card-border);border-radius:10px;overflow:hidden;box-shadow:var(--card-shadow)}.messages-table{width:100%;border-collapse:collapse;font-size:.88rem}.messages-table th{background:#f9fafb;padding:12px;text-align:left;font-weight:600;color:#6b7280;font-size:.82rem;border-bottom:1px solid #e5e7eb}.messages-table td{padding:12px;border-bottom:1px solid #f3f4f6;color:#374151;vertical-align:middle}.messages-table tr:last-child td{border-bottom:none}.messages-table tr:hover td{background:#fafafe}.content-cell{max-width:260px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.empty-cell{text-align:center;padding:40px!important;color:#9ca3af}.action-cell{white-space:nowrap}.btn-action{display:inline-block;padding:4px 12px;border-radius:5px;cursor:pointer;font-size:.82rem;font-weight:500;transition:all .15s;border:1px solid transparent}.btn-action+.btn-action{margin-left:6px}.btn-detail{background:#eef2ff;color:#6366f1;border-color:#c7d2fe}.btn-detail:hover{background:#e0e7ff}.btn-delete{background:#fff;color:#ef4444;border-color:#fca5a5}.btn-delete:hover{background:#fef2f2}.table-footer-bar{display:flex;justify-content:flex-end;gap:10px;margin-top:14px}.table-footer-bar button{padding:7px 18px;border:1px solid #d1d5db;border-radius:6px;background:#fff;color:#374151;cursor:pointer;font-size:.85rem;transition:all .15s}.table-footer-bar button:hover:not(:disabled){border-color:var(--sidebar-active);color:var(--sidebar-active)}.table-footer-bar button:disabled{opacity:.45;cursor:not-allowed}.record-count{font-size:.88rem;color:#6b7280}.record-count strong{color:#1f2937}.detail-modal{max-width:480px}.detail-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid #e5e7eb}.detail-header h3{font-size:1.2rem;font-weight:700;color:#1f2937;margin:0}.detail-close-btn{background:none;border:none;cursor:pointer;color:#9ca3af;padding:4px;border-radius:4px;transition:all .15s}.detail-close-btn:hover{color:#374151;background:#f3f4f6}.detail-body{display:flex;flex-direction:column;gap:12px}.detail-field{display:flex;align-items:flex-start;gap:12px}.detail-label{flex-shrink:0;width:70px;font-size:.85rem;font-weight:600;color:#6b7280;padding-top:1px}.detail-value{font-size:.9rem;color:#1f2937;word-break:break-all}.detail-content-field{flex-direction:column;gap:6px}.detail-content{font-size:.9rem;color:#1f2937;line-height:1.7;white-space:pre-wrap;word-break:break-all;background:#f9fafb;border-radius:8px;padding:12px;max-height:260px;overflow-y:auto}.detail-footer{margin-top:20px;text-align:right;padding-top:14px;border-top:1px solid #e5e7eb}.confirm-icon-wrap{text-align:center;margin-bottom:12px}.confirm-title{text-align:center;font-size:1.15rem;font-weight:700;color:#1f2937;margin:0 0 8px}.confirm-text{text-align:center;color:#6b7280;font-size:.9rem;margin:0 0 22px}.confirm-actions{display:flex;gap:12px;justify-content:center}.btn-danger{padding:9px 22px;border:none;border-radius:8px;background:#ef4444;color:#fff;cursor:pointer;font-weight:600;font-size:.9rem;transition:background .15s}.btn-danger:hover{background:#dc2626}.loading{text-align:center;padding:24px;color:#9ca3af;font-size:.9rem}.loading:after{content:"";display:inline-block;width:18px;height:18px;margin-left:8px;border:2px solid #e5e7eb;border-top-color:var(--sidebar-active);border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}