@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@100;200;300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Merriweather:ital,wght@0,300;0,400;0,700;0,900;1,300;1,400;1,700;1,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&family=Questrial&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Mallanna&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Besley:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,500;1,600;1,700;1,800;1,900&family=Mallanna&display=swap');
body {
    justify-content: center;
    background-color: #f3f3f3;
}

div.header-about {
    height: 500px;
    background-image: url(https://images.unsplash.com/photo-1537109662156-fade15c5ae8e?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=1050&q=80);
    background-size: cover; /* Tự động giãn so với kích thước */
    background-attachment: fixed; /* Cố định hình */
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}
div.header-about > p {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 75px;
    background-color: transparent; /* Nền trong suốt*/
    color: white;
    font-family: inherit;
    text-shadow: 5px 5px 15px #000;
    font-weight: lighter; /* Chữ mỏng*/
    letter-spacing: 0.125rem;
}

.line {
    visibility: hidden;
}

.logo-about {
    text-align: center !important;
    background: black;
}
.content img {
    width: 50%;
    height: auto;
    float: left;
}
.text-final  p {
    clear: left;
}
.hr-about {
    border-top: 2px solid #0e0d0d;
    width: 90%;
    margin: revert;
}
div.content > div.text-first  p {
    margin-left: 51%;
    padding: 0px 20px;
    font-family: Questrial, sans-serif;
    font-size: 20px;
    text-align: justify; /* Canh đều */
}
div.content > div.text-final  p {
    width: 50%;
    margin: 30px 0px;
    padding: 0px 30px;
    font-family: Questrial, sans-serif;
    font-size: 20px;
    text-align: justify;
    float: left;
}
.hidden-img1 {
    display: none;
    clear: left;
}
.hidden-text2 {
    display: none;
    font-family: Questrial, sans-serif;
    font-size: 20px;
    text-align: justify; /* Canh đều */
    margin: 0px 3%;
}
.hidden-img2 {
    padding-bottom: 20px;
}
div.footer-about {
    width: 100%;
    height: 1400px;
    clear: left;
    background-image: url(https://images.unsplash.com/photo-1446797376004-9352dfc9f789?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1062&q=80);
    display: flex;
    justify-content: center;
    align-items: center;
    background-size: cover;
    clear: left;
    background-attachment: fixed;
    max-width: none;
    position: absolute;
}
.fill-in {
    background-color: white;
    width: 675px;
    padding: 60px 0 60px;
    margin: 110px auto;   
    position: relative;
    
}
.fill-in h1 {
    font-size: 1.625rem;
    line-height: 1.2;
    letter-spacing: 0.25rem;
    text-align: center;
    font-family: Acta Display W01 Book;
    margin-bottom: 15px;
}
.fill-in p {
    padding: 0px 100px 30px;
    background-color: #fff;
    text-align: center;
    font-family: Questrial, sans-serif;
}
 .request {
    display: block;
    width: 100%;
    text-align: right;
    font-size: 1rem;
    margin: 16px 0;
    padding-right: 35%;
}
.form {
    text-align: left;
    width: 100%;
    margin-left: 25%;
    margin-right: 25%;
    
}
label{
    display: block;
    color: #181818;
    line-height: 1;
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: .091em;
    font-family: Questrial, sans-serif;
    text-align: left;
    margin: 20px 0px 6px 0px;
    width: 100%;
    font-family: Questrial, sans-serif;
}
ul, li, ol {
    font-family: Questrial, sans-serif;
    line-height: 1.3;
    list-style: none;
}
select {
    width: 355px;
}
.select_join > select, option {
    font-family: Questrial, sans-serif;
    font-size: 0.55rem;
}

input[type="text"], input[type="email"], input[type="number"], .select_join {
    border: 1px solid #181818;
    height: 45px;
    letter-spacing: .025rem;
    border-radius: 2px;
    font-size: 1rem;
    width: 50%;
    padding: 0 10px;
    background-color: white;
    font-family: Questrial, sans-serif;
}
input[type="text"]::placeholder {
    margin-left: 10px;
}
textarea {
    border: 1px solid #181818;
    letter-spacing: .025rem;
    border-radius: 2px;
    font-size: 1rem;
    width: 50% !important;
    background-color: white;
    font-family: Questrial, sans-serif;
    padding: 0 10px;
}
form {
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    font-weight: inherit;
    font-style: inherit;
    font-family: Questrial, sans-serif;
    font-size: 100%;
    vertical-align: baseline;
    justify-content: left;
}
li, .book-appointment {
    padding: 0;
}
.button-about {
    font-family: Questrial, sans-serif;
    border-color: #181818;
    color: #fff;
    text-transform: none;
    text-align: left;
    padding: 0;
}
input[type="submit"] {
    border: 1px solid #181818;
    height: 30px;
    letter-spacing: .025rem;
    border-radius: 2px;
    font-size: .75rem;
    background-color: #000;
    color: #fff;
    text-align: center;
    width: 50%;
    transition: 0.5s;
}
input[type="submit"]:hover {
    background-color: white;
    color: black;
    border: 2px solid black ;
}

.form-request {
    text-align: left;
}
.book-appointment .form-caption.invalid .form-text {
    border-color: #f33a58;
    font-family: Questrial, sans-serif;
}

.book-appointment .form-caption.invalid .form-request {
    color: #f33a58;
    font-family: Questrial, sans-serif;
    font-size: 12px;
    padding-top: 5px;
}
option {
    font-size: 15px;
    font-family: Questrial, sans-serif;
}
::-webkit-scrollbar { /* Xóa mép thanh scroll */
    width: 10px;
}
::-webkit-scrollbar-thumb {
    background-color: rgb(134, 133, 133);
    border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover {
    background-color: rgb(78, 76, 76);
}

/*----------------Media Query---------------*/
@media screen and (max-width: 1050px) /*150%*/ {
    div.header-about {
        height: 300px;
    }
    div.header-about > p {
        font-size: 60px;
    }
    div.content > div.text-first p, div.content > div.text-final p {
        font-size: 15px;
    }
    .fill-in {
        width: 500px;
    }
    div.footer-about {
        height: 1200px;
    }
    .fill-in h1 {
        font-size: 25px;
        letter-spacing: 1.25px;
    }
    .fill-in p {
        font-size: 16px;
        padding: 0 100px 20px;
    }
    .request {
        font-size: 0.75rem;
    }
    input[type="text"], input[type="email"], input[type="number"], .select_join {
        height: 30px;
        font-size: 12px;
    }
    textarea {
        font-size: 12px !important;
    }
    option {
        font-size: 10px;
    }
    label {
        font-size: 8px;
    }
    .book-appointment .form-caption.invalid .form-request {
        font-size: 8px;
        padding-top: 0px;
    }
    
    .book-appointment .form-caption.invalid {
        line-height: 18px;
    }
    input[type="submit"] {
        font-size: 10px;
        height: 25px;
    }

}
@media screen and (max-width: 950px) /*175%*/ {
    .hidden-img1 {
        display: block !important;
    }
    .fill-in {
        width: 400px;
    }
    div.footer-about {
        height: 1000px;
    }
    .fill-in h1 {
        font-size: 20px;
    }
    .fill-in p {
        font-size: 12px;
    }
    .request {
        font-size: 0.5rem;
    }
    input[type="text"], input[type="email"], input[type="number"], .select_join {
        height: 25px;
        font-size: 8px;
    }
    textarea {
        font-size: 8px !important;
    }
    input[type="submit"]:hover {
        border: 1px solid black;
        background-color: #f3f3f3;
    }
    option {
        font-size: 8px;
    }
    label {
        font-size: 6px;
        margin-top: 10px;
    }
    .hr-about {
        border-top: 1px solid black;
        margin-top: 0.5rem;
        margin-bottom: 0.5rem;
        text-align: center !important;
        margin: revert;
    }
}
@media screen and (max-width: 750px) /*250%*/ {
    div.header-about {
        height: 250px;
    }
    div.header-about > p {
        font-size: 40px;
    }
    div.content > div.text-first p, div.content > div.text-final p {
        font-size: 15px;
        padding: 0 20px;
        margin-top: 10px;
    }
    input[type="submit"] {
        font-size: 8px;
        height: 20px;
    }
    .carousel-caption h3.demo {
        font-size: 15px !important;
    }
}
@media screen and (max-width: 600px) /*300%*/ {
    
    div.header-about {
        height: 200px;
    }
    div.header-about > p {
        font-size: 30px;
    }
    .images img:first-child {
        float: none;
        width: 100%;
    }
    .hidden-img1 {
        display: none !important;
    }
    div.content > div.text-first p{
        font-size: 12px;
        padding: 0px 3% !important;
        margin: 8px 0px !important;
        font-size: 8px;
    }
    div.text-final p {
        display: none;
    }
    .hidden-img2 {
        width: 100% !important;
        float: none;
        padding-bottom: 0;
    }
    .hidden-text2 {
        display: block !important;
        padding-top: 10px;
        font-size: 8px;
    }
    .hidden-text2:last-child {
        margin-bottom: 20px;
    }
    .fill-in {
        width: 350px;
        padding-top: 40px;
        margin: 65px auto;
    }
    div.footer-about {
        height: 820px;
    }
    .fill-in h1 {
        font-size: 18px;
        margin-bottom: 10px;
    }
    .fill-in p {
        font-size: 10px;
        padding: 0 50px 10px;
    }
    .request {
        font-size: 0.4rem;
        margin: 10px 0;
        padding-right: 50%;
    }
    input[type="text"], input[type="email"], input[type="number"], .select_join{
        height: 23px;
        font-size: 8px;
        border: 0.5px solid black;
        padding: 0 5px;
    }
    option {
        font-size: 8px;
    }
    .message {
        padding-top: 5px;
    }
    textarea {
        border: 0.5px solid black !important;
        font-size: 8px !important;
        padding: 0 5px;
    }
    label {
        font-size: 7px;
        width: 50%;
        line-height: 10px;
        margin-top: 12px;
        margin-bottom: -3px;
    }
    input[type="submit"] {
        font-size: 6px;
        height: 15px;
    }
    input[type="submit"]:hover {
        border: 1px solid black;
        background-color: #f3f3f3;
    }
}
@media screen and (max-width: 450px) /*400%*/ {
    .hr-about {
        border-top: 0.75px solid black;
        margin-bottom: 0.25rem;
        margin-top: 0.25rem;
        text-align: center !important;
    }
    div.header-about {
        height: 150px;
    }
    div.header-about > p {
        font-size: 20px;
    }
    div.content > div.text-first p, .hidden-text2 {
        font-size: 10px;
        padding-top: 5px;
    }
    .hidden-text2:last-child {
        font-size: 10px;
        margin-bottom: 30px;
    }
    .hidden-img2 {
        margin-top: 30px;
    }
    #book-appointment {
        margin-left: 2px;
    }
    .fill-in {
        width: 250px;
        padding-top: 20px;
        margin: 40px auto;
    }
    div.footer-about {
        height: 635px;
    }
    .fill-in h1 {
        font-size: 15px;
        margin-bottom: 5px;
    }
    .fill-in p {
        font-size: 8px;
        padding: 0 35px 5px;
        margin: 0;
    }
    .request {
        font-size: 0.35rem;
        margin: 10px 0;
    }
    input[type="text"], input[type="email"], input[type="number"], .select_join {
        height: 20px;
        font-size: 5px;
        border: 0.5px solid black;
        background-color: white;
    }
    .message {
        padding-top: 10px;
    }
    textarea {
        border: 0.5px solid black !important;
        font-size: 5px !important;
        background-color: white;
    }
    option {
        font-size: 6px;
    }
    label {
        font-size: 5px;
        margin-top: 8px;
        margin-bottom: -3px;
        line-height: 7.5px;
    }
    .book-appointment .form-caption.invalid {
        line-height: 5px;
    }
    .book-appointment .form-caption.invalid .form-request {
        font-size: 5px;
    }
    input[type="submit"] {
        font-size: 6px;
        height: 15px;
    }
}