/* ==========================================
   CHECKOUT RESPONSIVE
========================================== */

.checkout{
    display:flex;
    gap:30px;
    align-items:flex-start;
}

.checkout-items{
    flex:2;
}

.checkout-summary{
    flex:1;
    background:#fff;
    border:1px solid #e5e7eb;
    border-radius:12px;
    padding:25px;
    position:sticky;
    top:20px;
}

/* Aviso de que el envío se cotiza recién al ingresar la dirección */
.summary-nota{
    margin:18px 0 22px;
    padding:12px 14px;
    background:#fff8e6;
    border:1px solid #ffe08a;
    border-left:4px solid #f5a623;
    border-radius:8px;
    font-size:13px;
    line-height:1.5;
    color:#6b5411;
}

.summary-nota strong{
    display:block;
    margin-bottom:2px;
    color:#8a6a0f;
}

.checkout-item{
    display:flex;
    align-items:center;
    gap:18px;
    padding:18px;
    background:#fff;
    border:1px solid #ececec;
    border-radius:10px;
    margin-bottom:15px;
}

.checkout-item img{
    width:90px;
    height:90px;
    object-fit:cover;
    border-radius:8px;
    flex-shrink:0;
}

.checkout-item .info{
    flex:1;
}

.checkout-item .info h4{
    margin:0 0 8px;
    font-size:18px;
}

.checkout-item .info p{
    margin:4px 0;
    color:#555;
}

.checkout-form{
    background:#fff;
    margin-top:40px;
    padding:30px;
    border-radius:10px;
}

.form-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:20px;
}

.form-group{
    display:flex;
    flex-direction:column;
}

.form-group.full{
    grid-column:1 / -1;
}

.form-group label{
    margin-bottom:6px;
    font-weight:bold;
    color:#555;
}

.form-group input,
.form-group select,
.form-group textarea{
    width:100%;
    box-sizing:border-box;
    padding:12px;
    border:1px solid #ddd;
    border-radius:6px;
    font-size:15px;
}

.form-group textarea{
    resize:vertical;
}

.form-error{
    color:#d32f2f;
    font-size:.85rem;
    margin-top:5px;
    min-height:18px;
}


/* ==========================================
   TABLETS
========================================== */

@media (max-width:992px){

    .checkout{
        flex-direction:column;
    }

    .checkout-summary{
        width:100%;
        position:static;
    }

}


/* ==========================================
   MÓVILES
========================================== */

@media (max-width:768px){

    .section-title{
        font-size:28px;
        text-align:center;
    }

    .checkout{
        gap:20px;
    }

    .checkout-item{
        padding:15px;
        gap:15px;
    }

    .checkout-item img{
        width:75px;
        height:75px;
    }

    .checkout-item .info h4{
        font-size:16px;
    }

    .checkout-summary{
        padding:20px;
    }

    .checkout-summary h2{
        font-size:26px;
    }

    .checkout-form{
        padding:20px;
    }

    .form-grid{
        grid-template-columns:1fr;
        gap:18px;
    }

    .form-group.full{
        grid-column:auto;
    }

    .btn-buy{
        width:100%;
    }

}


/* ==========================================
   TELÉFONOS PEQUEÑOS
========================================== */

@media (max-width:480px){

    .checkout-item{
        flex-direction:column;
        text-align:center;
    }

    .checkout-item img{
        width:100px;
        height:100px;
    }

    .checkout-item .info{
        width:100%;
    }

    .checkout-summary{
        padding:18px;
    }

    .checkout-summary h2{
        font-size:22px;
    }

    .checkout-summary h3{
        font-size:20px;
    }

    .btn-buy{
        padding:14px;
        font-size:16px;
    }

}