/*============================= GOOGLE FONTS ==========================*/
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400..800&display=swap');


/*============================== VARIBLES CSS ===========================*/

:root {
    --header-height: 3.5rem;
    /*=====================Colors ============================*/
    /*Color mode HSL(hue, saturation, lightness)*/
    /*







    */


    --hue: 230;
    --first-color: hsl(var(--hue) , 55%, 55%);
    --first-color-light: hsl(var(--hue) , 55%, 65%);
    --first-color-alt: hsl(var(--hue) , 50%, 60%);
    --title-color: hsl(var(--hue) , 30%, 95%);
    --text-color: hsl(var(--hue) , 20%, 85%);
    --text-color-light: hsl(var(--hue) , 20%, 70%);
    --body-color: hsl(var(--hue) , 40%, 16%);
    --container-color: hsl(var(--hue) , 40%, 20%);

/*============================= Font and typography ========================*/
/*.5rem = 8px | 1rem = 16px....*/
--body-font: "Syne", sans-serif;
--biggest-font-size: 3rem;
--big-font-size: 1.5rem;
--h1-font-size: 1.5rem;
--h2-font-size: 1.25rem;
--h3-font-size: 1rem;
--normal-font-size: .938rem;
--small-font-size: .813rem;

/*============================= Font weight ========================*/
--font-regular: 400;
--font-semi-bold: 600;
--font-bold: 700;

/*============================= z index ========================*/
--z-tooltip: 10;
--z-fixed: 100;

}

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

@media screen and (min-width: 1150px) {
    :root{
        --biggest-font-size: 5.5rem;
        --big-font-size: 2.75rem;
        --h1-font-size: 2.25rem;
        --h2-font-size: 1.5rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1.125rem;
        --small-font-size: .875rem;

    }
}


/*============================ BASS ==================*/
*{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

html{
    scroll-behavior: smooth;
}

body,
input,
textarea,
button {
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
}

body {
    background-color: var(--body-color);
    color: var(--text-color);
}


input,
button,
textarea {
    border: none;
    outline: none;
}

h1, h2, h3 {
    color: var(--title-color);
    font-size: var(--font-semi-bold);
}

p{
    line-height: 130%;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

/*============================ REUSABLE CSS CLASSES ==================*/

.container{
    max-width: 1120px;
    margin-inline: 1.5rem;
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.section {
    padding-block: 5rem 2rem;
}

.section__title {
    text-align: center;
    font-style: var(--h1-font-size);
    font-weight: var(--font-bold);
    margin-bottom: 2rem;
}


.main {
    overflow: hidden;
}

/*============================ HEADER & NAV ==================*/
.header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    background-color: transparent;
    z-index: var(--z-fixed);
}

.nav {
    position: relative;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    color: var(--title-color);
    font-weight: var(--font-bold);
}

.nav__toggle,
.nav__close {
    font-size: 1.5rem;
    color: var(--title-color);
    cursor: pointer;
}

/* Navigation for mobile devices */
@media screen and (max-width: 1150px) {
    .nav__menu{
        position: fixed;
        top: 0;
        right: -100%;
        background-color: hsla(var(--hue), 70%, 4%, .2);
        backdrop-filter: blur(16px);
        --webkit-backdrop-filler: blur(16px);
        width: 80%;
        height: 100%;
        padding: 7rem 3rem;
        transition: right .4s;
    }
}

.nav__list{
    display: flex;
    flex-direction: column;
    row-gap: 3rem;
}

.nav__link{
    position: relative;
    color: var(--title-color);
    font-weight: var(--font-semi-bold);
    transition: color .4s;
}

.nav__link::after{
    content: '';
    width: 0;
    height: 2px;
    background-color: var(--first-color-light);
    position: absolute;
    left: 0;
    bottom: -.5rem;
    transition: width .3s;
}

.nav__link:hover{
    color: var(--first-color-light);

}

.nav__link:hover::after{
    width: 30%;
}

.nav__close{
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

/* Show menu */
.show-menu{
    right: 0;
}

/* Add blur header */
.blur-header::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: hsla(var(--hue), 70%, 4%, .2);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    left: 0;
    top: 0;
    z-index: -1;
}


/* Active link */
.active-link{
    color: var(--first-color-light);
}

.active-link::after{
    width: 30%;
}

/*=============== HOME ===============*/
.home__container{
    row-gap: 2rem;
    padding-top: 1rem;
}
.home__img{
    width: 3000px;
    height: 300px;
    justify-self: center;
    mask-image: linear-gradient(to bottom,
                hsla(var(--hue), 40%, 50%, 1) 60%,
                transparent 100%);
}

.home__name{
    font-size: var(--biggest-font-size);
    font-weight: var(--font-bold);
    word-break: break-word;
    margin-bottom: 1rem;
}


.home__profession{
    position: relative;
    font-size: var(--big-font-size);
    color: var(--text-color);
}

.home__profession::after{
    content: '';
    position: absolute;
    left: 0;
    bottom: -.5rem;
    width: 50%;
    height: 3px;
    background-color: var(--text-color);
}

.home__scroll{
    color: var(--title-color);
    display: inline-flex;
    column-gap: .5rem;
    align-items: center;
    justify-self: center;
    margin-top: 3rem;
}


.home__scroll-box{
    background-color: var(--first-color);
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    overflow: hidden;
}

.home__scroll-text{
    font-weight: var(--font-semi-bold);
}

.home__scroll-box i{
    animation: scroll-down 3s infinite;
}

/* Animate scroll icon */
@keyframes scroll-down{
    0%{
        transform: translateY(-1rem);
        opacity: 0;
    }
    50%{
        transform: translateY(0);
        opacity: 1;
    }
    100%{
        transform: translateY(.6rem);
        opacity: 0;
    }
}

/*=============== BUTTON ===============*/
.button{
    display: inline-flex;
    justify-content: center;
    background-color: var(--first-color);
    color: var(--text-color);
    font-weight: var(--font-semi-bold);
    padding: 1.25rem 2rem;
    transition: background-color .4s;
}

.button:hover{
    background-color: var(--first-color-alt);
}


/*=============== WORKS ===============*/
.work{
    background-color: var(--container-color);
}

.work__card{
    background-color: var(--first-color);
}

.work__link{
    display: block;
    position: relative;
    background-color: var(--body-color);
    padding: 2rem 1.5rem 1.5rem 1.5rem;
    color: var(--text-color);
    transition: transform .4s;
}

.work__title{
    font-size: var(--h3-font-size);
    margin-bottom: .75rem;
}

.work__description{
    margin-bottom: 1.5rem;
}

.work__link i {
    position: absolute;
    top: 1.8rem;
    right: 1.5rem;
    font-size: 1.5rem;
    color: var(--first-color-light);
    transition: transform .4s;
}

.work__link:hover{
    transform: translateY(-.35rem);
}

.work__link:hover i{
    transform: translateY(.5rem);
}

/*=============== INFO ===============*/
.info__container{
    row-gap: 3rem;
}

.info__title{
    position: relative;
    font-size: var(--small-font-size);
    color: var(--text-color);
    margin-bottom: 2rem;
}

.info__title::after{
    content: '';
    position: absolute;
    left: 0;
    width: 20px;
    height: 2px;
    bottom: -.5rem;
    background-color:var(--text-color);
}


/* ABOUT */
.about{
    row-gap: 3rem;
}

.about__description{
    margin-bottom: 2rem;
}

.about__description b{
    color: var(--first-color-light);
}

.about__img{
    width: 250px;
    justify-self: center;
    mask-image: linear-gradient(to bottom,
                hsla(var(--hue), 40%, 50%, 1) 60%,
                transparent 100%);
}

.about__button{
    width: 100%;
}


/* EXPERIENCE */
.experience__content{
    row-gap: 2rem;
}

.experience__data{
    row-gap: 1rem;
}

.experience__company{
    font-size: var(--h2-font-size);
    font-weight: var(--font-bold);
}

.experience__profession{
    font-size: var(--h3-font-size);
    margin-bottom: .25rem;
}

.experience__date{
    display: block;
    font-size: var(--small-font-size);
    margin-bottom: .75rem;
}

.experience__description {
    list-style-type: disc; /* Dấu đầu dòng */
    padding-left: 20px; /* Khoảng cách từ đầu dòng đến nội dung */
}




/* SKILLS */
.skills__img{
    width: 50px;
    margin-bottom: .5rem;
}

.skills__name{
    font-style: var(--small-font-size);
}

.skills__content{
    grid-template-columns: repeat(3, max-content);
    justify-content: space-around;
    align-items: flex-end;
}

.skills__box{
    display: grid;
    place-items: center;
    transition: transform .4s;
}

.skills__box:hover{
    transform: translateY(-.25rem);
}

/* TOOLS */
.tools__img {
    width: 50px;
    margin-bottom: .5rem;
}

.tools__name {
    font-size: var(--small-font-size);
}

.tools__content {
    grid-template-columns: repeat(3, max-content);
    justify-content: space-around;
    align-items: flex-end;
}

.tools__box {
    display: grid;
    place-items: center;
    transition: transform .4s;
}

.tools__box:hover {
    transform: translateY(-.25rem);
}



/*=============== SERVICES ===============*/
.services{
    background-color: var(--container-color);
}

.services__icon{
    display: block;
    color: var(--first-color-light);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.services__title{
    font-style: var(--h3-font-size);
    margin-bottom: .75rem;
}

/*=============== CONTACT ===============*/
.contact__container{
    row-gap: 4rem;
}

.contact__group,
.contact__form{
    gap: 1rem;
}

.contact__form{
    position: relative;
}

.contact__input{
    padding: 1.25rem;
    background-color: var(--container-color);
    color: var(--text-color);
    font-weight: var(--font-semi-bold);
}

.contact__input::placeholder{
    color: var(--text-color-light);
}

.contact__area{
    height: 10rem;
    resize: none;
}

.contact__button{
    margin-top: 1rem;
    cursor: pointer;
}

.contact__social{
    grid-template-columns: repeat(2, max-content);
    justify-content: center;
    column-gap: 3rem;
}

.contact__social-link{
    color: var(--title-color);
    display: inline-flex;
    column-gap: .25rem;
    align-items: center;
    transition: color .4s;
}

.contact__social-link i{
    font-style: 1.5rem;
}

.contact__social-link span{
    font-style: var(--small-font-size);
    font-weight: var(--font-semi-bold);
}

.contact__social-link:hover{
    color: var(--first-color-light);
}

.contact__message{
    position: absolute;
    left: 0;
    bottom: -2rem;
    font-style: var(--small-font-size);
    font-weight: var(--font-semi-bold);
    color: var(--title-color);
}

/*=============== FOOTER ===============*/
.footer{
    background-color: var(--container-color);
}

.footer__container{
    padding-block: 3rem 2rem;
    row-gap: 3rem;
}

.footer__links{
    display: flex;
    justify-content: center;
    column-gap: 2.5rem;
}

.footer__link{
    color: var(--title-color);
    font-weight: var(--font-semi-bold);
    transition: color .4s;
}

.footer__link:hover{
    color: var(--first-color-light);
}

.footer__copy{
    color: var(--title-color);
    font-size: var(--small-font-size);
    text-align: center;
}




/*=============== SCROLL BAR ===============*/
::-webkit-scrollbar{
    width: .6rem;
    background-color: hsl(var(--hue) , 20%, 20%);
}

::-webkit-scrollbar-thumb{
    background-color: hsl(var(--hue) , 20%, 30%);
}

::-webkit-scrollbar-thumb:hover{
    background-color: hsl(var(--hue) , 20%, 40%);
}


/*=============== SCROLL UP ===============*/
.scrollup {
    position: fixed;
    right: 1rem;
    bottom: -50%;
    background-color: var(--container-color);
    display: inline-flex;
    padding: 6px;
    color: var(--title-color);
    font-size: 1.25rem;
    box-shadow: 0 4px 12px hsla(var(--hue), 30%, 8%, .3);
    z-index: var(--z-tooltip);
    transition: bottom .4s, transform .4s;
}

.scrollup:hover {
    transform: translateY(-.5rem);
}


/* Show Scroll Up */
.show-scroll{
    bottom: 3rem;
}


/*=============== BREAKPOINTS ===============*/
/* For small devices */
@media screen and (max-width: 300px){
    .container{
        margin-inline: 1rem;
    }

    .skills__content{
        grid-template-columns: repeat(2, max-content);
    }

    .tools__content{
        grid-template-columns: repeat(2, max-content);
    }
}


/* For medium devices */
@media screen and (min-width: 540px){
    .home__container,
    .work__container,
    .info__container,
    .services__container,
    .contact__container{
        grid-template-columns: 350px;
        justify-content: center;
    }
}

@media screen and (min-width: 768px){
    .nav__menu{
        width: 50%;
    }

    .home__container{
        grid-template-columns: repeat(2, 350px);
    }

    .home__data{
        align-self: flex-end;
        padding-bottom: 3rem;
        order: -1;
    }

    .home__scroll{
        grid-column: 1 / 3;
    }

    .work__container{
        grid-template-columns: repeat(2, 350px);
    }

    .info__container{
        grid-template-columns: initial;
    }
    
    .about{
        grid-template-columns: repeat(2, 350px);
        align-items: center;
    }

    .about.content{
        order: 1;
    }

    .experience__data{
        grid-template-columns: repeat(2, 1fr);
    }

    .skills__content{
        grid-template-columns: repeat(5, max-content);
        justify-content: initial;
        column-gap: 4rem;
    }

    .tools__content{
        grid-template-columns: repeat(5, max-content);
        justify-content: initial;
        column-gap: 4rem;
    }

    .services__container{
        grid-template-columns: repeat(2, 350px);
    }
}




/* For large devices */
@media screen and (min-width: 1150px){
    .container{
        margin-inline: auto;
    }

    .section{
        padding-block: 7rem 5rem;
    }

    .section__title{
        margin-bottom: 4rem;
    }

    .nav{
        height: calc(var(--header-height) + 2rem);
    }

    .nav__toggle,
    .nav__close{
        display: none;
    }

    .nav__menu{
        width: initial;
    }

    .nav__list{
        flex-direction: row;
        column-gap: 4rem;
    }
    
    .home__container{
        grid-template-columns: 375px 350px;
        gap: 3rem 16rem;
    }

    .home__img{
        width: 300px;
    }

    .home__name{
        margin-bottom: 1.5rem;
    }

    .home__profession::after{
        bottom: -1rem;
        width: 35%;
    }

    .work__container{
        grid-template-columns: repeat(2, 540px);
        gap: 2.5rem;
    }

    .work__link{
        padding: 3rem 3rem 2rem;
    }

    .work__title{
        font-size: var(--h2-font-size);
        margin-bottom: 1rem;
    }

    .work__link i{
        font-size: 2rem;
    }

    .info__container{
        row-gap: 4rem;
    }

    .info__title{
        font-size: var(--normal-font-size);
        margin-bottom: 3.5rem;
    }

    .about{
        grid-template-columns: 320px 420px;
        column-gap: 11.5rem;
    }

    .about__img{
        width: 320px;
    }

    .about__description{
        margin-bottom: 3rem;
    }

    .about__button{
        width: initial;
    }

    .experience__content{
        row-gap: 4rem;
    }

    .experience__data{
        grid-template-columns: 320px 380px;
        column-gap: 11.5rem;
    }

    .experience__company{
        font-size: var(--h1-font-size);
    }

    .experience__profession{
        margin-bottom: .5rem;
    }

    .experience__date{
        font-size: var(--normal-font-size);
        margin-bottom: 1.5rem;
    }

    .skills__content{
        grid-template-columns: repeat(6, max-content);
    }

    .tools__content{
        grid-template-columns: repeat(6, max-content);
    }

    .services__container{
        grid-template-columns: repeat(2, 350px);
        gap: 6rem 13rem;
    }

    .services__icon{
        font-size: 2.5rem;
        margin-bottom: 1.5rem;
    }

    .contact__container{
        grid-template-columns: 580px;
    }

    .contact__group{
        grid-template-columns: repeat(2, 1fr);
    }

    .contact__area{
        height: 15rem;
    }

    .contact__button{
        width: max-content;
        justify-self: center;
        margin-top: 1.5rem;
    }

    .contact__message{
        bottom: 4.5rem;
    }

    .contact__social{
        grid-template-columns: repeat(3, max-content);
        column-gap: 5rem;
    }

    .footer__container{
        padding-block: 3rem;
        grid-template-columns: repeat(2, max-content);
        justify-content: space-between;
    }

    .footer__link{
        column-gap: 4rem;
        order: 1;
    }

    .scrollup{
        right: 3rem;
    }
}


/* CSS FOR LANGUAGE SWITCHING BUTTONS */
.lang-buttons {
    display: flex;
    align-items: center;
    margin-right: auto; /* Đưa nút ngôn ngữ sang phải cùng với margin-left: auto */
}

.lang-button {
    border: none;
    background: none;
    cursor: pointer;
    padding: 0;
    display: inline-block;
    margin-left: 5px; /* Khoảng cách giữa các nút */
}

.lang-button img {
    width: 25px; /* Điều chỉnh kích thước của biểu tượng cờ */
    height: auto;
    vertical-align: middle; /* Căn giữa biểu tượng */
}

.lang-button:hover {
    opacity: 0.7; /* Hiệu ứng khi di chuột qua */
}