:root{--primary:#2563eb;--primary-glow:#2563eb0d;--bg:#f8fafc;--card-bg:#fff;--text:#1e293b;--text-muted:#64748b;--accent:#10b981;--border:#e2e8f0;--radius:6px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.5}.checkout-container{background:#fff;flex-direction:column;width:100%;max-width:480px;min-height:100vh;margin:0 auto;display:flex}.checkout-header{border-bottom:1px solid var(--border);flex-direction:column;align-items:center;padding:1.25rem;display:flex}.promo-banner{color:#2563eb;text-align:center;background:#eff6ff;width:100%;padding:.75rem 1rem;font-size:.8rem;font-weight:600}.summary-section{border-bottom:1px solid var(--border)}.summary-toggle{cursor:pointer;background:#f9fafb;border:none;justify-content:space-between;align-items:center;width:100%;padding:1rem 1.25rem;display:flex}.summary-details{border-top:1px solid var(--border);padding:1.25rem}.summary-item{align-items:center;gap:1rem;display:flex}.summary-img{object-fit:cover;border:1px solid var(--border);border-radius:4px;width:50px;height:50px}.summary-info{flex:1}.summary-title{font-size:.9rem;font-weight:600}.summary-qty{color:var(--text-muted);font-size:.8rem}.summary-price{font-weight:600}.form-section{border-bottom:1px solid var(--border);padding:1.5rem 1.25rem}.section-title{margin-bottom:1.25rem;font-size:1rem;font-weight:700}.form-grid{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.input-group.full{grid-column:span 2}.input-group label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.025em;margin-bottom:.4rem;font-size:.75rem;font-weight:600;display:block}.input-group input{border:1.5px solid var(--border);border-radius:var(--radius);outline:none;width:100%;padding:.75rem 1rem;font-size:.95rem;transition:all .2s}.input-group input:focus{border-color:var(--primary);background:#fff}.address-type-selector{margin-top:1.25rem}.address-type-selector label{color:var(--text-muted);margin-bottom:.5rem;font-size:.75rem;font-weight:600;display:block}.type-options{gap:1rem;display:flex}.type-option{cursor:pointer;align-items:center;gap:.5rem;font-size:.9rem;font-weight:500;display:flex}.type-option input[type=radio]{accent-color:var(--primary);width:1.1rem;height:1.1rem}.payment-options{flex-direction:column;gap:.75rem;display:flex}.payment-option-card{border:1.5px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:1rem;transition:all .2s}.payment-option-card.active{border-color:var(--primary);background:var(--primary-glow)}.option-header{justify-content:space-between;align-items:center;font-weight:600;display:flex}.option-price{font-weight:700}.option-benefit{color:#059669;margin-top:.4rem;font-size:.75rem;font-weight:500}.action-btn{background:var(--primary);color:#fff;cursor:pointer;border-radius:var(--radius);border:none;margin:1.5rem 1.25rem;padding:1.125rem;font-size:1rem;font-weight:700;transition:opacity .2s}.action-btn:disabled{opacity:.5;cursor:not-allowed}.secondary-btn{border:1.5px solid var(--border);border-radius:var(--radius);cursor:pointer;background:#fff;padding:1rem;font-weight:600}.checkout-footer{text-align:center;background:#f1f5f9;padding:2rem 1.25rem}.footer-links{flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:1.5rem;display:flex}.footer-links a{color:var(--text-muted);font-size:.75rem;font-weight:500;text-decoration:none}.footer-info{color:var(--text-muted);opacity:.8;font-size:.7rem}.settings-link{color:var(--primary);cursor:pointer;background:0 0;border:none;margin:1.5rem auto 0;font-size:.8rem;text-decoration:underline;display:block}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-slide-up{animation:.3s ease-out forwards slideUp}.success-content{text-align:center;flex:1;padding:4rem 2rem}.success-icon{background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;margin:0 auto 1.5rem;font-size:2rem;display:flex}.setup-form{flex-direction:column;gap:1.25rem;display:flex}.glass-card{border:1.5px solid var(--border);border-radius:var(--radius);background:#fff}