:root{--primary: #667eea;--primary-dark: #5568d3;--success: #10b981;--danger: #ef4444;--bg: #f8fafc;--text: #1e293b;--border: #e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.navbar{background:linear-gradient(135deg,#667eea,#764ba2);padding:0;position:sticky;top:0;z-index:100;box-shadow:0 2px 10px #667eea4d}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px}.nav-logo{font-size:1.4rem;font-weight:800;color:#fff;text-decoration:none;letter-spacing:-.5px}.nav-menu{display:flex;align-items:center;gap:6px}.nav-link{color:#ffffffd9;text-decoration:none;padding:8px 14px;border-radius:8px;font-size:.9rem;font-weight:500;transition:all .2s;border:none;background:transparent;cursor:pointer;font-family:inherit}.nav-link:hover{background:#ffffff26;color:#fff}.nav-btn{color:#ffffffd9;font-size:.9rem;font-weight:500}.cart-link{background:#fff3;color:#fff!important;font-weight:600;border:1px solid rgba(255,255,255,.3)}.cart-link:hover{background:#ffffff4d!important}.footer{background:#1e293b;color:#fff9;text-align:center;padding:20px;margin-top:60px;font-size:.85rem}.page-container{max-width:1200px;margin:0 auto;padding:20px}.btn{padding:10px 20px;border:none;border-radius:8px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .2s;font-size:.95rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:#64748b;color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn:disabled{opacity:.6;cursor:not-allowed}.alert{padding:15px;border-radius:8px;margin-bottom:20px}.alert-error{background:#fee2e2;color:#991b1b;border-left:4px solid var(--danger)}.alert-success{background:#d1fae5;color:#065f46;border-left:4px solid var(--success)}.card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 6px #00000012}.login-container{max-width:450px;margin:50px auto;background:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 6px #0000001a}.login-container h1{font-size:2rem;color:var(--primary);margin-bottom:10px;text-align:center}.login-subtitle{text-align:center;color:#666;margin-bottom:30px}.login-form .form-group{margin-bottom:20px}.login-form .form-group label{display:block;margin-bottom:8px;font-weight:600;color:#333}.login-form .form-group input{width:100%;padding:12px 15px;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;box-sizing:border-box}.login-form .form-group input:focus{outline:none;border-color:var(--primary)}.login-container .btn{width:100%}.demo-accounts{margin-top:30px;padding:20px;background:#f9fafb;border-radius:8px}.demo-accounts h3{font-size:.9rem;margin-bottom:15px;color:#555;font-weight:600}.demo-list{display:flex;flex-direction:column;gap:8px}.demo-item{padding:10px;background:#fff;border-radius:6px;font-size:.85rem;color:#666;border:1px solid #e5e7eb;cursor:pointer;transition:border-color .2s}.demo-item:hover,.demo-item:focus{border-color:var(--primary);outline:none}.demo-item strong{color:var(--primary)}.cart-container{max-width:1200px;margin:40px auto;padding:0 20px}.cart-container h1{font-size:2rem;color:#333;margin-bottom:30px}.cart-item-count{font-size:1.2rem;color:var(--primary);font-weight:400}.cart-grid{display:grid;grid-template-columns:1fr 350px;gap:30px}@media (max-width: 768px){.cart-grid{grid-template-columns:1fr}}.cart-empty{text-align:center;padding:100px 20px;max-width:500px;margin:0 auto}.cart-empty-icon{font-size:5rem;margin-bottom:20px}.cart-empty h2{font-size:2rem;color:#333;margin-bottom:15px}.cart-empty p{color:#666;margin-bottom:30px;font-size:1.1rem}.cart-items{display:flex;flex-direction:column;gap:15px}.cart-item{display:flex;align-items:center;gap:20px;background:#fff;padding:20px;border-radius:12px;box-shadow:0 2px 4px #00000014}.cart-item-image{width:100px;height:80px;border-radius:8px;overflow:hidden;flex-shrink:0}.cart-item-image img{width:100%;height:100%;object-fit:cover}.cart-item-info{flex:1}.cart-item-name{font-size:1.1rem;color:#333;margin-bottom:5px}.cart-item-category{font-size:.8rem;color:var(--primary);text-transform:uppercase;font-weight:600;margin-bottom:5px}.cart-item-price-unit{font-size:.9rem;color:#666}.cart-item-controls{display:flex;align-items:center;gap:20px;flex-shrink:0}.quantity-control{display:flex;align-items:center;gap:10px;background:#f3f4f6;border-radius:8px;padding:5px}.qty-btn{width:30px;height:30px;border:none;background:#fff;border-radius:6px;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 1px 3px #0000001a;transition:all .2s}.qty-btn:hover{background:var(--primary);color:#fff}.qty-value{font-size:1.1rem;font-weight:600;min-width:30px;text-align:center}.cart-item-total{font-size:1.2rem;font-weight:700;color:var(--primary);min-width:100px;text-align:right}.btn-remove{background:none;border:none;font-size:1.3rem;cursor:pointer;opacity:.6;transition:opacity .2s}.btn-remove:hover{opacity:1}.cart-summary{background:#fff;padding:30px;border-radius:12px;box-shadow:0 4px 6px #0000001a;height:fit-content;position:sticky;top:20px}.cart-summary h2{font-size:1.3rem;color:#333;margin-bottom:20px}.summary-lines{border-top:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb;padding:20px 0;margin-bottom:20px}.summary-line{display:flex;justify-content:space-between;padding:8px 0;color:#666}.summary-total{font-size:1.2rem;color:#333;padding-top:15px;margin-top:10px;border-top:2px solid #e5e7eb}.free{color:var(--success);font-weight:600}.btn-checkout{display:block;width:100%;padding:15px;background:var(--success);color:#fff;text-align:center;border-radius:10px;font-size:1.1rem;font-weight:700;text-decoration:none;transition:all .3s;margin-bottom:15px}.btn-checkout:hover{background:#059669;transform:translateY(-2px);box-shadow:0 4px 12px #10b98166}.login-required{margin-bottom:15px}.login-required-msg{background:#fef3c7;border-left:4px solid #f59e0b;padding:12px;border-radius:8px;font-size:.9rem;color:#92400e;margin-bottom:15px}.btn-login{display:block;width:100%;padding:15px;background:var(--primary);color:#fff;text-align:center;border-radius:10px;font-size:1.1rem;font-weight:700;text-decoration:none;transition:all .3s;margin-bottom:12px}.btn-login:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.register-hint{text-align:center;font-size:.9rem;color:#666;margin-bottom:15px}.link{color:var(--primary);text-decoration:none;font-weight:600}.link:hover{text-decoration:underline}.btn-continue{display:block;width:100%;padding:12px;background:#fff;color:var(--primary);text-align:center;border-radius:10px;font-size:.95rem;font-weight:600;text-decoration:none;border:2px solid var(--primary);transition:all .3s}.btn-continue:hover{background:var(--primary);color:#fff}@keyframes ped-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.06)}}@keyframes spin{to{transform:translateY(-50%) rotate(360deg)}}