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th{text-align:left;padding:12px 16px;font-size:13px;font-weight:600;color:var(--text-muted);background:var(--bg-light);border-bottom:1px solid var(--border)}.admin-table td{padding:14px 16px;border-bottom:1px solid var(--border-light);font-size:14px;vertical-align:middle}.admin-table tr:hover td{background:#fafafa}.admin-table img{width:60px;height:45px;object-fit:cover;border-radius:4px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:var(--transition);border:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-light)}.btn-danger{background:#e74c3c;color:#fff}.btn-danger:hover{background:#c0392b}.btn-outline{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-outline:hover{border-color:var(--primary);color:var(--primary)}.btn-sm{padding:5px 12px;font-size:13px}.btn-icon{padding:6px;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center}.form-group{margin-bottom:20px}.form-label{display:block;font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:6px}.form-input,.form-select,.form-textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:inherit;transition:var(--transition);background:#fff;color:var(--text-primary)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2d8c4e1a}.form-textarea{min-height:100px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-check{display:flex;align-items:center;gap:8px;cursor:pointer}.form-check input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1001;padding:20px}.modal{background:#fff;border-radius:var(--radius-md);width:100%;max-width:640px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-light)}.modal-header h3{font-size:18px;font-weight:600}.modal-close{background:none;padding:4px;color:var(--text-muted);font-size:24px;line-height:1}.modal-body{padding:24px}.modal-footer{display:flex;justify-content:flex-end;gap:12px;padding:16px 24px;border-top:1px solid var(--border-light)}.image-upload-area{border:2px dashed var(--border);border-radius:var(--radius-md);padding:32px;text-align:center;cursor:pointer;transition:var(--transition);color:var(--text-muted)}.image-upload-area:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-bg)}.image-preview-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.image-preview-item{position:relative;width:100px;height:75px;border-radius:var(--radius-sm);overflow:hidden}.image-preview-item img{width:100%;height:100%;object-fit:cover}.image-preview-remove{position:absolute;top:4px;right:4px;width:20px;height:20px;border-radius:50%;background:#e74c3cd9;color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;cursor:pointer}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460)}.login-card{background:#fff;border-radius:var(--radius-lg);padding:48px 40px;width:100%;max-width:420px;box-shadow:var(--shadow-xl)}.login-card h2{text-align:center;font-size:24px;margin-bottom:8px}.login-card .login-subtitle{text-align:center;color:var(--text-muted);font-size:14px;margin-bottom:32px}.login-btn{width:100%;padding:14px;font-size:16px;font-weight:600}.login-error{color:#e74c3c;text-align:center;font-size:14px;margin-bottom:16px}.toast{position:fixed;top:24px;right:24px;padding:14px 24px;border-radius:var(--radius-sm);color:#fff;font-size:14px;z-index:2000;animation:slideIn .3s ease;box-shadow:var(--shadow-md)}.toast-success{background:var(--primary)}.toast-error{background:#e74c3c}.toast-info{background:#3498db}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@media (max-width: 1200px){.product-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.stat-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 992px){.banner-slider{height:100vh;min-height:450px}.banner-content h1{font-size:36px}.banner-overlay{padding:0 40px 80px}.banner-arrow{display:none}.brand-content,.detail-layout{grid-template-columns:1fr}.detail-gallery{position:static}.promo-grid{grid-template-columns:1fr 1fr}}@media (max-width: 768px){:root{--header-height: 64px}.nav-links,.header-phone{display:none}.menu-toggle{display:block}.banner-slider{height:100vh;min-height:350px}.banner-overlay{padding:0 24px 70px}.banner-content h1{font-size:28px;letter-spacing:1px}.banner-content p{font-size:15px}.section{padding:50px 0}.section-header h2{font-size:28px}.product-grid{grid-template-columns:repeat(2,1fr);gap:16px}.product-grid-simple{grid-template-columns:repeat(2,1fr);gap:14px}.product-card-image{height:180px}.case-grid{grid-template-columns:repeat(2,1fr);gap:12px}.promo-grid{grid-template-columns:1fr}.page-banner{height:220px}.page-banner h1{font-size:28px}.brand-stats{grid-template-columns:repeat(3,1fr)}.brand-stat-num{font-size:28px}.footer-grid{grid-template-columns:1fr;gap:24px}.admin-sidebar{transform:translate(-100%);transition:var(--transition)}.admin-sidebar.open{transform:translate(0)}.admin-main{margin-left:0}.stat-grid{grid-template-columns:1fr 1fr}.form-row{grid-template-columns:1fr}}@media (max-width: 480px){.product-grid,.case-grid,.stat-grid{grid-template-columns:1fr}.banner-slider{height:100vh;min-height:260px}.banner-content h1{font-size:22px}}.fade-up{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}.fade-up.visible{opacity:1;transform:translateY(0)}