body {
    background: #f5f7fa;
    font-family: inherit;
}

.checkout-page {
    padding: 50px 0;
}

.checkout-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    width: 90%;
    max-width: 1300px;
    margin: auto;
    align-items: flex-start;
}

/* ===========================
   فرم
=========================== */

.checkout-form-box,
.checkout-box {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    border: 1px solid #e8e8e8;
    box-shadow: 0 8px 25px rgba(0, 0, 0, .05);
}

.checkout-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.checkout-header h2 {
    font-size: 20px;
    color: #222;
    margin-bottom: 8px;
}

.checkout-header p {
    color: #777;
    font-size: 14px;
}

.back-cart {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #3AA6A0;
    font-size: 15px;
    font-weight: 600;
    transition: .3s;
}

.back-cart:hover {
    color: #2d8b86;
}

/* ===========================
   فرم
=========================== */

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 22px;
}

.form-group label {
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 600;
    color: #444;
}

.form-group label span {
    color: #e53935;
}

.form-group input,
.form-group select,
.form-group textarea {

    width: 100%;
    height: 50px;

    border: 1px solid #d8d8d8;
    border-radius: 12px;

    padding: 0 15px;

    font-family: inherit;
    font-size: 13px;

    outline: none;

    transition: .25s;

    background: #fff;

}

.form-group textarea {

    height: 130px;
    resize: vertical;
    padding: 15px;

}

.form-group input::placeholder,
.form-group textarea::placeholder {

    color: #aaa;

}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {

    /* border-color: #3AA6A0; */
    /* box-shadow: 0 0 0 4px rgba(58,166,160,.15); */

}

/* ===========================
   خلاصه سفارش
=========================== */

.checkout-summary {

    position: sticky;
    top: 30px;

}

.checkout-box h3 {

    font-size: 16px;
    margin-bottom: 30px;

}

.summary-row {

    display: flex;
    justify-content: space-between;
    align-items: center;

    margin-bottom: 4px;

    font-size: 14px;

    color: #444;

}


.summary-row.total {
    margin: 16px 0 20px;
    font-size: 15px;
    font-weight: bold;
    color: #3AA6A0;

}

#checkout-btn {

    width: 100%;
    height: 55px;

    border: none;

    border-radius: 12px;

    margin-bottom: 10px;

    background: #3AA6A0;

    color: white;

    font-size: 14px;
    font-weight: bold;

    cursor: pointer;

    transition: .3s;

}

.Tip{
    font-size: 12px;
    color: #5c5c5c;
    display: flex;
    align-items: start;
    gap: 4px;
    line-height: 1.2rem;
}
.Tip svg{
    width: 18px;
    height: 18px ;
}

#checkout-btn:hover {

    background: #318b86;

    transform: translateY(-2px);

}

#checkout-btn:active {

    transform: scale(.98);

}

/* ===========================
   Responsive
=========================== */

@media (max-width:992px){

    .checkout-container{

        grid-template-columns:1fr;

    }

    .checkout-summary{

        position:static;

    }

}

@media (max-width:768px){

    .checkout-page{

        padding:25px 0;

    }

    .checkout-container{

        width:95%;

    }

    .checkout-form-box,
    .checkout-box{

        padding:22px;

    }

    .checkout-header{

        flex-direction:column;
        align-items:flex-start;
        gap:15px;

    }

    .form-row{

        grid-template-columns:1fr;

        gap:0;

    }

    .checkout-header h2{

        font-size:21px;

    }

    .checkout-box h3{

        font-size:20px;

    }

}

@media (max-width:480px){

    .summary-row{

        font-size:14px;

    }

    .summary-row.total{

        font-size:18px;

    }

    #checkout-btn{

        height:52px;

        font-size:15px;

    }

}




/* ------------------------------ */

/* ===========================
   Validation
=========================== */

.form-group.error input,
.form-group.error select,
.form-group.error textarea {

    border-color: #ef4444;

    /* box-shadow: 0 0 0 4px rgba(239,68,68,.12); */

}

.form-group.success input,
.form-group.success select,
.form-group.success textarea {

    border-color: #22c55e;
    /* box-shadow: 0 0 0 4px rgba(34,197,94,.12); */
}

.error-message {
    display: none;
    margin-top: 8px;
    font-size: 13px;
    color: #ef4444;
    font-weight: 500;
}

.form-group.error .error-message{
    display:block;
}