* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Phetsarath OT', Arial, sans-serif;
}

.ab-hh {
    height: 400px;
    width: 100%;
    background-color:rgb(245, 248, 242);
    color: blueviolet;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;




}

.ab-h h1 {
    margin-top: 1.5rem;
    color: blueviolet;

}


.ab-article {
    display: flex;
    gap: 100px;
    justify-content: center;
}

.ab-l img {
    width: 400px;
}

.ab-l {
    line-height: 2;
}

.con {
    max-width: 500px;
    margin: 3rem auto;
    padding: 2rem;
    /* border: 1px solid black; */

}

form {
    width: 500px;
    background-color: rgb(121, 240, 240);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0px 0px 5px rgb(129, 111, 111);
}

.con h2 {
    color: rgb(54, 38, 68);
    font-size: 35px;

}

.con p {
    color: blueviolet;
    margin: .5rem 0;

}

label {
    /* border: 1px solid rgb(0, 0, 0); */
    margin-bottom: 5px;
    display: block;
}

input[type="text"],
input[type="email"],
input[type="tel"],

select,
textarea {
    width: 100%;
    border-radius: 5px;
    padding: 0.5rem 1rem;
    font-size: 15px;
    background-color: rgb(255, 255, 255);
    box-sizing: border-box;
    border: none;
}

.ab-r button {
    width: 100%;
    padding: 12px;
    background-color: blueviolet;
    color: #ffff;
    border: none;
    border-radius: 20px;
    transition: background 3;
    font-size: 15px;
}

.box-f {
    margin-top: 15px;
}

.aa-box {
    display: inline-block;
    font-weight: bolder;
}

.aa-box a {
    text-decoration: none;
}

button:hover {
    background-color: rgb(90, 90, 209);
}

input[type="text"]:hover {
    box-shadow: 0 0 5px rgb(255, 255, 255);
}

input[type="email"]:hover {
    box-shadow: 0 0 5px rgb(255, 255, 255);

}

input[type="tel"]:hover {
    box-shadow: 0 0 5px rgb(255, 255, 255);

}

select:hover {
    box-shadow: 0 0 5px rgb(255, 255, 255);

}

textarea:hover {
    box-shadow: 0 0 5px rgb(255, 255, 255);

}

/* ===============================
   MOBILE RESPONSIVE (<= 768px)
   =============================== */
@media screen and (max-width: 768px) {

    /* header */
    .ab-hh {
        height: auto;
        padding: 2rem 1rem;
    }

    /* section ທີ່ມີຫຼາຍບ໋ອກ */
    .ab-article {
        flex-direction: column;
        gap: 2rem;
        padding: 2rem 1rem;
        align-items: center;
    }

    /* ຝັ່ງຊ້າຍ */
    .ab-l {
        text-align: center;
    }

    .ab-l img {
        width: 100%;
        max-width: 300px;
        height: auto;
    }

    /* form container */
    .con {
        max-width: 100%;
        margin: 2rem auto;
        padding: 1rem;
    }

    form {
        width: 100%;
        padding: 2rem 1.5rem;
    }

    .con h2 {
        font-size: 26px;
        text-align: center;
    }

    .con p {
        text-align: center;
    }

    button {
        font-size: 16px;
    }
}