*{
    box-sizing:border-box;
}

body{
    margin:0;
    background:#f5f6f8;
    font-family:Arial,sans-serif;
}

.topbar{
    background:#fff;
    height:70px;
    padding:0 30px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    box-shadow:0 2px 10px rgba(0,0,0,.05);
}

.logo{
    font-size:24px;
    font-weight:700;
}

.back-btn{
    text-decoration:none;
    color:#333;
    font-weight:600;
}

.checkout-header-actions{
    display:flex;
    align-items:center;
    gap:22px;
}

.account-btn{
    text-decoration:none;
    color:#1760d5;
    font-weight:700;
}

.checkout-container{
    max-width:1400px;
    margin:40px auto;
    padding:0 20px;
    display:grid;
    grid-template-columns:2fr 1fr;
    gap:30px;
}

.checkout-left,
.checkout-right{
    background:#fff;
    border-radius:16px;
    padding:30px;
    box-shadow:0 5px 20px rgba(0,0,0,.05);
}

.checkout-left h2,
.checkout-right h2{
    margin-top:0;
    margin-bottom:20px;
}

.form-group{
    margin-bottom:20px;
}

.form-group label{
    display:block;
    margin-bottom:8px;
    font-weight:600;
}

.form-group input,
.form-group textarea{
    width:100%;
    padding:14px;
    border:1px solid #ddd;
    border-radius:10px;
    font-size:15px;
}

.radio-box{
    display:flex;
    flex-direction:column;
    gap:12px;
    margin-bottom:30px;
}

.radio-box label{
    padding:12px;
    border:1px solid #ddd;
    border-radius:10px;
    cursor:pointer;
}

.summary-item{
    display:flex;
    justify-content:space-between;
    margin-bottom:15px;
}

.summary-total{
    display:flex;
    justify-content:space-between;
    font-size:22px;
    font-weight:bold;
    margin-top:20px;
    padding-top:20px;
    border-top:2px solid #eee;
}

#confirmOrder{
    width:100%;
    margin-top:30px;
    padding:16px;
    border:none;
    border-radius:12px;
    background:#f9a825;
    color:white;
    font-size:18px;
    font-weight:bold;
    cursor:pointer;
}

#confirmOrder:hover{
    opacity:.9;
}

@media(max-width:900px){

    .checkout-container{
        grid-template-columns:1fr;
    }

}
html, body, button, input, select, textarea {
    font-family: "Segoe UI", "Noto Sans", Arial, sans-serif !important;
}