:root{--primary:#ff5a00;--bg-color:#fff;--text-color:#111827;--text-muted:#6b7280;--border-color:#e5e7eb}body{color:var(--text-color);-webkit-font-smoothing:antialiased;background-color:#f9fafb;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.container{background-color:var(--bg-color);flex-direction:column;max-width:480px;min-height:100vh;margin:0 auto;display:flex;box-shadow:0 0 20px #0000000d}.header{text-align:center;border-bottom:1px solid var(--border-color);z-index:10;background:#fff;padding:24px 20px;position:sticky;top:0}.header h1{letter-spacing:-.5px;margin:0;font-size:24px;font-weight:800}.menu-list{flex:1;padding:20px}.menu-item{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 0;display:flex}.menu-item:last-child{border-bottom:none}.menu-info h3{margin:0 0 4px;font-size:16px;font-weight:600}.menu-info p{color:var(--text-muted);margin:0;font-size:14px}.menu-price{color:var(--primary);margin-top:4px;font-weight:700}.add-btn{background-color:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:20px;transition:transform .1s;display:flex}.add-btn:active{transform:scale(.9)}.cart-footer{border-top:1px solid var(--border-color);background:#fff;padding:20px;position:sticky;bottom:0;box-shadow:0 -4px 10px #0000000d}.checkout-btn{background-color:var(--text-color);color:#fff;cursor:pointer;border:none;border-radius:12px;justify-content:space-between;align-items:center;width:100%;padding:16px;font-size:16px;font-weight:700;display:flex}.checkout-btn:active{opacity:.9}.modal-overlay{z-index:50;background:#00000080;align-items:flex-end;display:flex;position:fixed;inset:0}.modal-content{background:#fff;border-radius:24px 24px 0 0;width:100%;max-width:480px;max-height:80vh;margin:0 auto;padding:24px;overflow-y:auto}.modal-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.modal-header h2{margin:0;font-size:20px}.cart-item{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.cart-item-qty{margin-right:12px;font-weight:600}.cart-total{border-top:1px solid var(--border-color);justify-content:space-between;margin-top:24px;padding-top:16px;font-size:18px;font-weight:800;display:flex}.pay-btn{background-color:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;justify-content:center;gap:8px;width:100%;margin-top:24px;padding:16px;font-size:16px;font-weight:700;display:flex}.input-field{border:1px solid var(--border-color);box-sizing:border-box;border-radius:8px;width:100%;margin-bottom:12px;padding:12px;font-size:16px}.payment-methods{gap:12px;margin-bottom:20px;display:flex}.payment-method{border:1px solid var(--border-color);text-align:center;cursor:pointer;border-radius:8px;flex:1;padding:12px;font-weight:600}.payment-method.active{border-color:var(--primary);color:var(--primary);background-color:#fff5f0}.success-screen{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:40px 20px;display:flex}.success-icon{color:#fff;background-color:#10b981;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin-bottom:24px;font-size:40px;display:flex}.success-screen h2{margin-bottom:12px;font-size:24px}.success-screen p{color:var(--text-muted);margin-bottom:32px}.back-btn{background-color:var(--bg-color);border:1px solid var(--border-color);cursor:pointer;border-radius:24px;padding:12px 24px;font-weight:600}