*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #1a1a2e;--primary-light: #16213e;--accent: #e94560;--accent-hover: #c73a52;--gold: #f0a500;--bg: #f5f6fa;--card-bg: #ffffff;--text: #2d3436;--text-light: #636e72;--border: #dfe6e9;--success: #00b894;--warning: #fdcb6e;--radius: 12px;--shadow: 0 2px 16px rgba(0,0,0,.08);--shadow-lg: 0 8px 32px rgba(0,0,0,.12)}body{font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{background:var(--primary);color:#fff;padding:0 20px;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px #00000026}.navbar-inner{max-width:1200px;margin:0 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h3{font-size:1.1rem;font-weight:600}.card-body{padding:24px}.form-label{display:block;font-size:.9rem;font-weight:500;margin-bottom:6px;color:var(--text)}.form-input,.form-select,.form-textarea{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:8px;font-size:.95rem;font-family:inherit;transition:border-color .2s;background:#fff}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--accent)}.form-textarea{resize:vertical;min-height:80px}.badge{display:inline-block;padding:3px 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var(--border)}.summary-row.total{border-top:2px solid var(--border);margin-top:8px;padding-top:16px;font-weight:700;font-size:1.1rem;border-bottom:none}.summary-row.discount{color:var(--success)}.coupon-row{display:flex;gap:10px;align-items:center}.coupon-row input{flex:1;padding:10px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:.92rem}.coupon-valid{color:var(--success);font-weight:600;font-size:.88rem}.checkout-actions{display:flex;justify-content:space-between;align-items:center;margin-top:24px}.btn-back{color:var(--text-light);font-size:.92rem;font-weight:500;text-decoration:none;transition:color .2s}.btn-back:hover{color:var(--primary)}.btn-submit{background:var(--accent);color:#fff;border:none;padding:14px 36px;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-submit:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px 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h3{color:var(--success);margin-bottom:8px}.checkout-preview{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;position:sticky;top:80px}.checkout-preview h3{font-size:1.05rem;margin-bottom:16px;color:var(--primary)}.preview-info{text-align:center;margin-top:16px}.product-name{font-size:.95rem;color:var(--text);margin-bottom:4px}.product-price{font-size:1.3rem;font-weight:700;color:var(--accent)}.checkout-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:32px}.order-summary-card{position:sticky;top:80px}.order-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}.order-item-preview{width:80px;height:100px;border-radius:8px;overflow:hidden;flex-shrink:0}.order-item-preview canvas{width:100%;height:100%}.order-item-info h4{font-size:.95rem;margin-bottom:8px}.order-item-info p{font-size:.85rem;color:var(--text-light);margin-bottom:4px}.payment-methods{display:flex;gap:12px;margin-top:12px}.payment-method{flex:1;padding:16px;border:2px solid var(--border);border-radius:10px;text-align:center;cursor:pointer;transition:all .2s}.payment-method:hover{border-color:var(--primary)}.payment-method.selected{border-color:var(--accent);background:#fff5f5}.payment-method .pm-icon{font-size:1.8rem;margin-bottom:8px}.payment-method .pm-name{font-weight:600;font-size:.9rem}.success-page{text-align:center;padding:60px 20px}.success-icon{width:80px;height:80px;background:#d4fceb;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2.5rem;margin:0 auto 24px}.admin-grid{display:grid;grid-template-columns:220px 1fr;gap:32px;min-height:calc(100vh - 60px)}.admin-sidebar{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 0;position:sticky;top:80px;align-self:start}.admin-sidebar a{display:block;padding:12px 24px;font-size:.95rem;font-weight:500;transition:all .2s;border-left:3px solid transparent}.admin-sidebar a:hover{background:#f8f9ff;color:var(--primary)}.admin-sidebar a.active{background:#f0f2ff;color:var(--primary);border-left-color:var(--primary);font-weight:600}.admin-sidebar .sidebar-title{padding:8px 24px 16px;font-size:.75rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-light)}.admin-content{min-height:400px}@media (max-width: 968px){.customize-section{grid-template-columns:1fr;gap:28px}.preview-area{position:sticky;top:60px;z-index:10;background:var(--bg);padding-bottom:16px;margin-top:-8px;margin-bottom:4px}.preview-canvas-wrap{padding:10px 6px}.checkout-grid,.checkout-container{grid-template-columns:1fr}.checkout-preview{position:static;top:auto}.admin-grid{grid-template-columns:1fr}.admin-sidebar{position:static;display:flex;flex-wrap:wrap;gap:8px;padding:12px}.admin-sidebar a{padding:8px 16px;border-radius:6px;border-left:none}.admin-sidebar .sidebar-title{width:100%;padding:0 0 8px}.navbar-links{gap:12px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.navbar-logo{font-size:1.1rem}}@media (max-width: 480px){.page-header{padding:32px 0}.page-header h1{font-size:1.5rem}.color-swatch{width:44px;height:44px}.options-grid{grid-template-columns:repeat(2,1fr)}.payment-methods{flex-direction:column}}