:root{--primary:#2563eb;--dark:#101828;--soft:#f4f7fb}body{background:var(--soft);color:#263247}.app-navbar{background:linear-gradient(90deg,#0f172a,#1d4ed8);box-shadow:0 4px 18px #0f172a2b}.navbar .nav-link{color:#dbeafe!important}.navbar .nav-link:hover{color:#fff!important}.card{border-radius:16px}.stat-card{background:#fff;border-radius:16px;padding:20px;box-shadow:0 5px 20px #0f172a0d;display:flex;align-items:center;gap:14px;height:100%}.stat-card>i{font-size:28px;background:#eaf1ff;color:var(--primary);width:52px;height:52px;display:grid;place-items:center;border-radius:14px}.stat-card small,.stat-card strong{display:block}.stat-card strong{font-size:1.25rem}.mini-total{background:#fff;border-radius:14px;padding:18px;box-shadow:0 4px 16px #0f172a0c;display:flex;justify-content:space-between}.optical-table th{background:#f0f5ff}.product-image{width:100%;max-height:420px;object-fit:contain;border-radius:12px}.product-preview{width:150px;height:100px;object-fit:contain;border:1px solid #ddd;border-radius:8px}.image-placeholder{min-height:300px;display:grid;place-items:center;background:#eef3fb;border-radius:14px}.image-placeholder i{font-size:100px;color:#9aa9bd}.landing{min-height:100vh;background:radial-gradient(circle at 80% 20%,#2563eb,#0b1220 60%)}.min-vh-75{min-height:75vh}.glass-card{color:#fff;border:1px solid #ffffff35;background:#ffffff12;backdrop-filter:blur(12px);border-radius:24px}.login-page{background:linear-gradient(135deg,#0f172a,#2563eb)}.pagination{justify-content:center}footer{font-size:.9rem}@media(max-width:768px){main.container-fluid{padding-left:14px!important;padding-right:14px!important}.display-3{font-size:2.6rem}.stat-card{padding:14px}}