.home-page{background:linear-gradient(135deg,#1e3c72,#2a5298);min-height:100vh}.hero{max-width:1200px;margin:4rem auto;padding:4rem 2rem;text-align:center;color:#fff}.hero h1{font-size:3.5rem;margin-bottom:1.5rem;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.hero p{font-size:1.3rem;margin-bottom:2.5rem;opacity:.95}.cta-buttons{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap}.features{max-width:1200px;margin:4rem auto;padding:2rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem}.feature-card{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 4px 15px #0000001a;text-align:center}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{color:#1e3c72;margin-bottom:1rem;font-size:1.5rem}.feature-card p{color:#666;line-height:1.6}body{background:#f5f5f5}.container{max-width:1400px;margin:3rem auto;padding:0 2rem}.card{background:#fff;padding:30px;border-radius:15px;box-shadow:0 10px 30px #0003;margin-bottom:30px}.upload-section{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:30px}@media (max-width: 968px){.upload-section{grid-template-columns:1fr}}.upload-zone{border:3px dashed #1e3c72;border-radius:10px;padding:60px 20px;text-align:center;cursor:pointer;transition:all .3s;background:#f8f9ff;min-height:400px;display:flex;flex-direction:column;justify-content:center;align-items:center}.upload-zone:hover{border-color:#2a5298;background:#f0f2ff}.upload-zone.dragging{border-color:#2a5298;background:#e8eaff}.upload-icon{font-size:4rem;margin-bottom:20px;color:#1e3c72}.upload-text{font-size:1.2rem;color:#333;margin-bottom:10px}.upload-subtext{color:#666;font-size:.9rem}input[type=file]{display:none}.viewer-container{border:2px solid #e0e0e0;border-radius:10px;background:#f5f5f5;position:relative;overflow:hidden}#viewer-3d{width:100%;height:400px;cursor:grab}#viewer-3d:active{cursor:grabbing}.viewer-placeholder{width:100%;height:400px;display:flex;align-items:center;justify-content:center;flex-direction:column;color:#999}.viewer-placeholder-icon{font-size:5rem;margin-bottom:20px;opacity:.5}.controls-section{display:block;max-width:500px;margin:0 auto 20px}.form-group label{display:block;margin-bottom:8px;color:#333;font-weight:600}.slider-container{margin-bottom:20px}.slider-label{display:flex;justify-content:space-between;margin-bottom:8px;color:#333;font-weight:600}.slider-value{color:#1e3c72;font-size:1.1rem}input[type=range]{width:100%;height:8px;border-radius:5px;background:#e0e0e0;outline:none;-webkit-appearance:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#1e3c72,#2a5298);cursor:pointer;box-shadow:0 2px 5px #0003}input[type=range]::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#1e3c72,#2a5298);cursor:pointer;box-shadow:0 2px 5px #0003;border:none}.material-selector{display:grid;grid-template-columns:1fr 1fr;gap:15px}.material-option{padding:20px;border:3px solid #e0e0e0;border-radius:10px;cursor:pointer;transition:all .3s;text-align:center;background:#fff;display:flex;align-items:center;justify-content:center}.material-option:hover{border-color:#1e3c72;background:#f8f9ff}.material-option.selected{border-color:#1e3c72;background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff}.material-icon{font-size:2.5rem;margin-bottom:10px;display:none}.material-name{font-weight:600;font-size:1.1rem;text-align:center}.btn{padding:14px 30px;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;display:inline-block}.btn-success{background:linear-gradient(135deg,#4caf50,#45a049);color:#fff}.btn-success:hover{transform:translateY(-2px);box-shadow:0 5px 15px #4caf5066}.btn-secondary{background:#f0f0f0;color:#333}.btn-secondary:hover{background:#e0e0e0}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-group{display:flex;gap:15px;margin-top:20px}.btn-group .btn{flex:1}.cost-estimate{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;padding:30px;border-radius:10px;margin-top:20px}.cost-estimate h3{margin-bottom:20px;font-size:1.5rem}.cost-detail{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.2)}.cost-detail:last-child{border-bottom:none;margin-top:10px;padding-top:20px;border-top:2px solid rgba(255,255,255,.3);font-size:1.3rem;font-weight:700}.loading{text-align:center;padding:40px;color:#1e3c72}.alert{position:fixed;top:20px;left:50%;transform:translate(-50%);padding:15px 30px;border-radius:8px;z-index:1000;box-shadow:0 4px 12px #00000026;animation:slideDown .3s ease-out;min-width:300px;max-width:500px;text-align:center}@keyframes slideDown{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.alert-success{background:#e8f5e9;color:#388e3c;border-left:4px solid #388e3c}.alert-error{background:#ffebee;color:#c62828;border-left:4px solid #c62828}.info-badge{background:#e3f2fd;color:#1976d2;padding:10px 15px;border-radius:8px;font-size:.9rem;margin-bottom:15px;border-left:4px solid #1976d2}.two-column-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:20px}@media (max-width: 768px){.upload-section,.two-column-layout{grid-template-columns:1fr}}.page-header{text-align:center;margin-bottom:3rem}.page-header h1{font-size:2.5rem;color:#1e3c72;margin-bottom:.5rem}.page-header p{font-size:1.1rem;color:#666}.cart-items{margin-bottom:30px}.cart-item{border:2px solid #e0e0e0;border-radius:10px;padding:20px;margin-bottom:15px;display:grid;grid-template-columns:150px 1fr auto;gap:20px;align-items:start}.model-preview canvas{display:block}.item-details h3{color:#333;margin-bottom:10px}.item-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:10px}.info-item{font-size:14px;color:#666}.info-label{font-weight:600;color:#333}.item-price{font-size:24px;font-weight:700;color:#1e3c72}.remove-button{background:#f44336;color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .3s;margin-top:10px}.remove-button:hover{background:#d32f2f}.cart-summary{border-top:2px solid #e0e0e0;padding-top:20px;margin-top:20px}.total{display:flex;justify-content:space-between;align-items:center;font-size:24px;font-weight:700;margin-bottom:20px}.total-price{color:#1e3c72}.checkout-button{width:100%;background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;border:none;padding:16px;border-radius:10px;font-size:18px;font-weight:600;cursor:pointer;transition:all .3s;text-decoration:none;display:block;text-align:center}.checkout-button:hover{transform:translateY(-2px);box-shadow:0 10px 20px #1e3c724d}.checkout-button:disabled{opacity:.6;cursor:not-allowed}.quantity-controls{display:flex;align-items:center;gap:10px;margin-top:15px}.quantity-btn{width:32px;height:32px;border:2px solid #1e3c72;background:#fff;color:#1e3c72;border-radius:6px;font-size:18px;font-weight:700;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center;padding:0}.quantity-btn:hover{background:#1e3c72;color:#fff}.quantity-btn:disabled{opacity:.3;cursor:not-allowed}.quantity-display{font-size:16px;font-weight:600;color:#333;min-width:40px;text-align:center}.quantity-label{font-size:14px;color:#666;font-weight:600}.checkout-page{background:#f5f5f5;min-height:100vh}.checkout-page .container{max-width:1400px;margin:3rem auto;padding:0 2rem}.checkout-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:30px;align-items:start}.checkout-page .card{background:#fff;border-radius:12px;padding:30px;box-shadow:0 10px 40px #0000001a;margin-bottom:20px}.section-title{font-size:1.5rem;color:#333;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid #f0f0f0}.section-subtitle{font-size:1.1rem;color:#333;margin-bottom:15px;font-weight:600}.order-summary{background:#f8f9fa;padding:20px;border-radius:12px}.order-item{margin-bottom:20px}.item-number{font-weight:700;margin-bottom:10px;color:#1e3c72}.model-preview-container{display:flex;align-items:flex-start;gap:20px;padding:15px;background:#fff;border-radius:10px}.model-preview{width:150px;height:150px;border:2px solid #1e3c72;border-radius:8px;background:#fff;flex-shrink:0;overflow:hidden}.model-details{flex:1}.summary-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #e0e0e0}.summary-row:last-child{border-bottom:none}.summary-row span:first-child{color:#666}.summary-row span:last-child{color:#333;font-weight:500}.quantity-highlight,.cost-highlight{font-weight:700;color:#1e3c72}.summary-totals{margin-top:20px;padding-top:15px;border-top:2px solid #1e3c72}.total-row{border-top:2px solid #1e3c72;padding-top:15px;margin-top:10px}.final-total{font-size:1.2em;margin-top:10px;padding-top:10px;border-top:1px solid #ddd}.final-total span{font-weight:700;color:#1e3c72}.carrier-options{margin-top:15px;padding:15px;background:#f8f9fa;border-radius:8px;border:2px solid #1e3c72}.carrier-options-title{font-weight:600;margin-bottom:10px;color:#333}.carrier-option{display:flex;align-items:center;padding:10px;margin-bottom:8px;background:#fff;border:2px solid #e0e0e0;border-radius:6px;cursor:pointer;transition:all .3s}.carrier-option:hover{border-color:#2a5298}.carrier-option.selected{border-color:#1e3c72;background:#f8f9ff}.carrier-option input[type=radio]{margin-right:10px;cursor:pointer}.carrier-info{flex:1}.carrier-name{font-weight:600;color:#333}.carrier-days{font-size:12px;color:#666}.carrier-cost{font-weight:700;color:#1e3c72;font-size:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.form-group{margin-bottom:20px}.form-group.full-width{grid-column:1 / -1}.form-group label{display:block;margin-bottom:8px;color:#555;font-weight:500}.form-group label.required:after{content:" *";color:#e74c3c}.form-group input,.form-group select{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s}.form-group input:focus,.form-group select:focus{outline:none;border-color:#1e3c72}.form-help{display:block;margin-top:5px;color:#666;font-size:.85rem}.address-verified-badge{display:inline-block;padding:4px 12px;margin-left:8px;background:#d4edda;color:#155724;border:1px solid #c3e6cb;border-radius:4px;font-size:12px;font-weight:600}.account-section{margin:30px 0;padding:20px;background:#f8f9fa;border-radius:8px;border:1px solid #e0e0e0}.checkbox-label{display:flex;align-items:flex-start;cursor:pointer;position:relative;padding-left:35px;-webkit-user-select:none;user-select:none}.checkbox-label input[type=checkbox]{position:absolute;opacity:0;cursor:pointer;height:0;width:0}.checkmark{position:absolute;left:0;top:2px;height:22px;width:22px;background-color:#fff;border:2px solid #ccc;border-radius:4px;transition:all .3s}.checkbox-label:hover .checkmark{border-color:#2a5298}.checkbox-label input[type=checkbox]:checked~.checkmark{background-color:#2a5298;border-color:#2a5298}.checkmark:after{content:"";position:absolute;display:none;left:6px;top:2px;width:6px;height:11px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg)}.checkbox-label input[type=checkbox]:checked~.checkmark:after{display:block}.label-text{line-height:1.5}.password-section{margin-top:15px}.password-strength{margin-top:8px}.strength-bar{height:6px;background:#e0e0e0;border-radius:3px;overflow:hidden;margin-bottom:5px}.strength-bar-fill{height:100%;width:0%;transition:all .3s;border-radius:3px}.strength-bar-fill.weak{width:33%;background:#e74c3c}.strength-bar-fill.medium{width:66%;background:#f39c12}.strength-bar-fill.strong{width:100%;background:#27ae60}.strength-text{font-size:.85rem;font-weight:600}.strength-text.weak{color:#e74c3c}.strength-text.medium{color:#f39c12}.strength-text.strong{color:#27ae60}.payment-methods{display:flex;gap:20px;margin-bottom:30px}.payment-method{flex:1;padding:20px;border:2px solid #e0e0e0;border-radius:12px;cursor:pointer;text-align:center;transition:all .3s}.payment-method.selected{border-color:#1e3c72;background:#f8f9ff}.payment-method:hover{border-color:#2a5298}.payment-method p{margin-top:10px;font-weight:600;color:#333}#card-element{padding:15px;border:2px solid #e0e0e0;border-radius:8px;margin-bottom:20px}.paypal-container{display:none}.paypal-container.active{display:block}.checkout-page .btn{padding:15px 30px;border:none;border-radius:8px;font-size:1rem;cursor:pointer;transition:all .3s;font-weight:600}.checkout-page .btn-primary{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;width:100%}.checkout-page .btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 20px #667eea66}.checkout-page .btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none;position:relative}.checkout-page .btn-primary:disabled:after{content:attr(data-tooltip);position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:#333;color:#fff;padding:8px 12px;border-radius:6px;white-space:nowrap;font-size:14px;font-weight:400;opacity:0;pointer-events:none;transition:opacity .3s;margin-bottom:10px}.checkout-page .btn-primary:disabled:hover:after{opacity:1}.alert{padding:15px 20px;border-radius:8px;margin-bottom:20px;animation:slideIn .3s ease-out}.alert-success{background:#d4edda;border:1px solid #c3e6cb;color:#155724}.alert-error{background:#f8d7da;border:1px solid #f5c6cb;color:#721c24}.loading{text-align:center;padding:40px}.spinner{border:4px solid #f3f3f3;border-top:4px solid #1e3c72;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes slideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 1024px){.checkout-grid,.form-row{grid-template-columns:1fr}.payment-methods{flex-direction:column}}@media (max-width: 768px){.checkout-page .container{padding:0 1rem;margin:2rem auto}.checkout-page .card{padding:20px}.model-preview-container{flex-direction:column}.model-preview{width:100%;height:200px}.payment-methods{gap:15px}.payment-method{padding:15px}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;min-height:100vh}.navbar{background:#fff;box-shadow:0 2px 10px #0000001a;position:sticky;top:0;z-index:1000}.nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem}.nav-brand{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#1e3c72,#2a5298);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}.nav-links{display:flex;gap:2rem;align-items:center;list-style:none}.nav-links a{text-decoration:none;color:#333;font-weight:500;transition:color .3s;position:relative;cursor:pointer}.nav-links a:hover{color:#2a5298}.nav-links a.active{color:#1e3c72}.nav-links a.active:after{content:"";position:absolute;bottom:-5px;left:0;right:0;height:2px;background:linear-gradient(135deg,#1e3c72,#2a5298)}.cart-badge{background:#1e3c72;color:#fff;border-radius:50%;padding:2px 6px;font-size:.75rem;margin-left:5px}.btn{padding:1rem 2.5rem;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s;border:none;cursor:pointer;font-size:1.1rem;display:inline-block}.btn-primary{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 15px #1e3c724d}.btn-secondary{background:transparent;color:#fff;border:2px solid white}.btn-secondary:hover{background:#fff;color:#1e3c72}