:root{--primary-color:#2563eb;--secondary-color:#1e40af;--accent-color:#3b82f6;--bg-color:#f8fafc;--sidebar-color:#1e293b;--text-primary:#0f172a;--text-secondary:#64748b;--white:#fff;--border-color:#e2e8f0;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--radius-md:.5rem;--transition:all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}ul{list-style:none}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,textarea,select{outline:none;font-family:inherit}.container{width:100%;max-width:1400px;margin:0 auto;padding:0 2rem}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.4s forwards fadeIn}.btn{border-radius:var(--radius-md);transition:var(--transition);align-items:center;gap:.5rem;padding:.6rem 1.2rem;font-weight:600;display:inline-flex}.btn-primary{background-color:var(--primary-color);color:var(--white)}.btn-primary:hover{background-color:var(--secondary-color)}.btn-outline{border:1px solid var(--border-color);color:var(--text-secondary);background:0 0}.btn-outline:hover{background-color:var(--bg-color);border-color:var(--text-secondary)}.card{background:var(--white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);padding:1.5rem}.flex{display:flex}.align-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:1rem}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.admin-sidebar{background-color:var(--sidebar-color);width:260px;height:100vh;color:var(--white);z-index:100;flex-direction:column;display:flex;position:fixed;top:0;left:0}.sidebar-brand{border-bottom:1px solid #ffffff1a;align-items:center;gap:1rem;padding:2rem;display:flex}.sidebar-brand img{height:35px}.sidebar-brand span{letter-spacing:.5px;font-size:1.1rem;font-weight:700}.sidebar-nav{flex:1;padding:1.5rem 1rem;overflow-y:auto}.nav-item{border-radius:var(--radius-md);color:#94a3b8;transition:var(--transition);align-items:center;gap:1rem;margin-bottom:.5rem;padding:.8rem 1rem;display:flex}.nav-item:hover{color:var(--white);background-color:#ffffff0d}.nav-item.active{color:var(--white);background-color:var(--primary-color)}.nav-item 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.avatar{background-color:var(--primary-color);width:40px;height:40px;color:var(--white);border-radius:50%;justify-content:center;align-items:center;font-weight:700;display:flex}.admin-profile span{color:var(--text-primary);font-size:.9rem;font-weight:600}.admin-content{flex:1;padding:2rem}.loading-screen{height:100vh;color:var(--primary-color);justify-content:center;align-items:center;font-size:1.5rem;font-weight:600;display:flex}.login-container{background:linear-gradient(135deg,#1e293b 0%,#0f172a 100%);justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.login-card{background:var(--white);border-radius:1rem;width:100%;max-width:450px;padding:3rem;box-shadow:0 25px 50px -12px #00000080}.login-header{text-align:center;margin-bottom:2.5rem}.login-logo{height:60px;margin-bottom:1.5rem}.login-header h2{color:var(--text-primary);margin-bottom:.5rem;font-size:1.75rem}.login-header p{color:var(--text-secondary);font-size:.95rem}.login-form .form-group{margin-bottom:1.5rem}.login-form label{color:var(--text-primary);margin-bottom:.5rem;font-size:.875rem;font-weight:600;display:block}.login-form input{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;transition:var(--transition);padding:.8rem 1rem;font-size:1rem}.login-form input:focus{border-color:var(--primary-color);box-shadow:0 0 0 4px #2563eb1a}.btn-block{justify-content:center;width:100%;margin-top:1rem;padding:.8rem;font-size:1rem}.error-alert{color:#b91c1c;border-radius:var(--radius-md);text-align:center;background-color:#fee2e2;border:1px solid #fecaca;margin-bottom:1.5rem;padding:.75rem 1rem;font-size:.875rem}.login-footer{text-align:center;color:var(--text-secondary);margin-top:2.5rem;font-size:.75rem}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2rem;display:grid}.stat-card{align-items:center;gap:1.5rem;display:flex}.stat-icon{border-radius:12px;justify-content:center;align-items:center;width:50px;height:50px;font-size:1.25rem;display:flex}.stat-details h3{color:var(--text-secondary);margin-bottom:.25rem;font-size:.875rem;font-weight:500}.stat-value{color:var(--text-primary);font-size:1.5rem;font-weight:700}.dashboard-grid{grid-template-columns:2fr 1fr;gap:1.5rem;display:grid}.card-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;display:flex}.card-header h3{color:var(--text-primary);font-size:1.1rem}.activity-item{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:1rem 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var(--border-color);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:var(--transition);background-color:#f8fafc;padding:2rem;display:block}.upload-label:hover{border-color:var(--primary-color);background-color:#eff6ff}.upload-label.disabled{opacity:.6;cursor:not-allowed}.upload-placeholder{flex-direction:column;align-items:center;gap:.5rem;display:flex}.upload-icon{color:var(--text-secondary);font-size:2.5rem}.upload-placeholder span{color:var(--text-primary);font-weight:600}.upload-placeholder small{color:var(--text-secondary)}.preview-container{border-radius:var(--radius-md);border:1px solid var(--border-color);width:100%;height:200px;position:relative;overflow:hidden}.image-preview{object-fit:cover;width:100%;height:100%}.remove-image-btn{color:#fff;width:32px;height:32px;transition:var(--transition);background-color:#ef4444e6;border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;top:10px;right:10px}.remove-image-btn:hover{background-color:#ef4444;transform:scale(1.1)}.page-header-actions{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.table-container{padding:0;overflow:hidden}.table-controls{border-bottom:1px solid var(--border-color);padding:1.5rem}.search-box{background-color:var(--bg-color);border-radius:var(--radius-md);border:1px solid var(--border-color);align-items:center;gap:.75rem;max-width:350px;padding:.6rem 1rem;display:flex}.search-box input{background:0 0;border:none;width:100%;font-size:.9rem}.admin-table{border-collapse:collapse;width:100%}.admin-table th{text-align:left;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;background-color:#f8fafc;padding:1rem 1.5rem;font-size:.85rem;font-weight:600}.admin-table td{border-bottom:1px solid var(--border-color);padding:1rem 1.5rem;font-size:.95rem}.item-title-cell{align-items:center;gap:1rem;display:flex}.table-thumb{object-fit:cover;border-radius:8px;width:45px;height:45px}.badge{border-radius:20px;padding:.25rem .6rem;font-size:.75rem;font-weight:600}.badge-success{color:#166534;background-color:#dcfce7}.badge-light{color:#475569;background-color:#f1f5f9}.action-btns{gap:.5rem;display:flex}.action-btns button{width:32px;height:32px;transition:var(--transition);border-radius:6px;justify-content:center;align-items:center;font-size:.9rem;display:flex}.edit-btn{color:var(--primary-color);background-color:#eff6ff}.edit-btn:hover{background-color:var(--primary-color);color:var(--white)}.delete-btn{color:var(--danger);background-color:#fef2f2}.delete-btn:hover{background-color:var(--danger);color:var(--white)}.admin-form .form-group{margin-bottom:1.25rem}.admin-form label{color:var(--text-primary);margin-bottom:.4rem;font-size:.875rem;font-weight:600;display:block}.admin-form input,.admin-form textarea,.admin-form select{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;padding:.75rem;font-size:.95rem}.checkbox-group label{cursor:pointer;align-items:center;gap:.75rem;display:flex}.checkbox-group input{width:auto}.form-actions{border-top:1px solid var(--border-color);justify-content:flex-end;gap:1rem;margin-top:2rem;padding-top:1.5rem;display:flex}.text-center{text-align:center}.detail-view{flex-direction:column;gap:1.25rem;display:flex}.detail-row{flex-direction:column;gap:.4rem;display:flex}.detail-row label{color:var(--text-secondary);text-transform:uppercase;font-size:.85rem;font-weight:700}.detail-row span{color:var(--text-primary);font-size:1rem;font-weight:500}.message-text{background-color:var(--bg-color);border-radius:var(--radius-md);border:1px solid var(--border-color);white-space:pre-wrap;padding:1rem;font-size:.95rem;line-height:1.6}.rating-cell{color:var(--warning);align-items:center;gap:.4rem;display:flex}.star-icon{font-size:.8rem}