.checkout-header{background:#fff;border-bottom:1px solid #eee;padding:15px 20px}.header-wrapper{justify-content:space-between;align-items:center;display:flex}.logo{flex:1}.steps{letter-spacing:2px;color:#666;align-items:center;gap:12px;font-size:14px;font-weight:600;display:flex}.steps .active{color:#00a37a}.steps-lining{border-top:2px dashed #ccc;width:60px}.secure{color:#444;gap:6px;font-size:14px;display:flex}.mobile-back{align-items:center;gap:10px;font-weight:600;display:flex}.back-arrow{font-size:20px}.mobile-step{color:#777;font-size:14px}.mobile-back .title{margin-left:20px}