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

.home {
    height: 100%;
    padding-top: 40vh;
    overflow: hidden;
    align-items: center;
    text-align: center;
    /* background: linear-gradient(to right, rgba(39, 39, 39, 0.8), rgba(39, 39, 39, 0.3)), center bottom; */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    
}

.home__greeting {
    width: 40%;
}

.home__name {
    font-size: 5rem;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    position: relative;
    border-bottom: 2px solid #fff;
}

.home__name--last {
    color: #ff652f;
    font-weight: 700;
}

.home .centered__box {
    display: flex;
    justify-content: center;
    align-items: center;
}

.menu-btn {
    position: absolute;
    z-index: 1;
    right: 1rem;
    top: 1rem;
    height: 20px;
    width: 28px;
    cursor: pointer;
    transition: all 0.5s ease-in-out;
}

.menu-btn__burger {
    position: absolute;
    right: 0;
    top: 0.5rem;
    width: 28px;
    height: 3px;
    background: #fff;
    transition: all 0.5s ease-in-out;
}

.menu-btn__burger::before {
    content: "";
    position: absolute;
    top: -8px;
    width: 28px;
    height: 3px;
    background: #fff;
    transition: all 0.5s ease-in-out;
}

.menu-btn__burger::after {
    content: "";
    position: absolute;
    top: 8px;
    width: 20px;
    height: 3px;
    background: #fff;
    transition: all 0.5s ease-in-out;
}

.menu-btn__burger.open {
    background: transparent;
}

.menu-btn__burger.open::before {
    transform: rotate(45deg) translate(5px, 8px);
}

.menu-btn__burger.open::after {
    width: 28px;
    transform: rotate(-45deg) translate(3px, -7px);
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    opacity: 0.95;
    visibility: hidden;
    justify-content: center;
}

.nav.open {
    visibility: visible;
}

.nav .lang {
    text-align: end;
    margin-right: 50px;
    color: lightblue;
}

.nav .menu-nav {
    display: flex;
    flex-flow: column wrap;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    background: #272727;
    list-style-type: none;
    padding-right: 1rem;
    transform: translateY(-100%);
    transition: all 0.5s ease-in-out;
}

.nav .menu-nav.open {
    transform: translateY(0);
}

.nav .menu-nav__item {
    transform: translateX(100vw);
    transition: all 0.5s ease-in-out;
}

.nav .menu-nav__item.open {
    transform: translateX(0);
}

.nav .menu-nav__item.active>a {
    color: #ff652f;
}

.nav .menu-nav__link {
    display: inline-block;
    font-size: 2rem;
    padding: 2rem 0;
    font-weight: 300;
    text-transform: uppercase;
    transition: all 0.5s ease-in-out;
}

.nav .menu-nav__link:hover {
    color: #ff652f;
}

.menu-nav__item:nth-child(1) {
    transition-delay: 0.25s;
}

.menu-nav__item:nth-child(2) {
    transition-delay: 0.35s;
}

.menu-nav__item:nth-child(3) {
    transition-delay: 0.45s;
}

.menu-nav__item:nth-child(4) {
    transition-delay: 0.55s;
}

.about {
    padding-bottom: 2rem;
}

.about__bio-image {
    height: 80vh;
    width: 100%;
    background: linear-gradient(to right, rgba(39, 39, 39, 0.9), rgba(39, 39, 39, 0.3));
    background-size: cover !important;
    background-position: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
}

.about__bio-image p {
    margin-bottom: 2rem;
    font-size: 1rem;
}

.about__bio {
    width: 80%;
    text-align: center;
}

.about__bio .text-secondary {
    padding-bottom: 1rem;
}

.about .jobs {
    width: 60vw;
    margin: 2rem auto 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 2rem;
}

.about .jobs__job {
    background: #414141;
    padding: 0.5rem;
    border-bottom: 5px solid #ff652f;
}

.about .jobs__job .link {
    color: lightblue;
}

.about .jobs__job p {
    margin: 1rem 0;
}

.about .jobs h2,
.about .jobs h3 {
    margin: 0.5rem 0;
}

.about .jobs h5 {
    margin: 0.3rem 0;
}

.about .jobs ul {
    list-style-type: none;
}

.about .jobs ul li {
    padding: 3px 15px;
}

.about .social-icons {
    font-size: 10px;
    display: flex;
    flex-direction: column;
}

.about footer {
    font-size: 0.8rem;
    transform: rotate(90deg) translate(-4rem, -5rem);
}

.projects {
    padding-bottom: 2rem;
    
}

.projects__bio-image {
    height: 60vh;                 
    min-height: 350px; 
    /* background: linear-gradient(to right, rgba(39, 39, 39, 0.8), rgba(39, 39, 39, 0.3)), url("../img/projects.jpg") center; */
    background-size: cover !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    background-position: center;
    background-repeat: no-repeat;
}

.projects__bio-image .text-secondary {
    margin-bottom: 2rem;
    font-size: 2rem;
    
}

.projects__items {
    width: calc(33.333% - 20px);
    /* 1/3 chiều rộng của container, trừ khoảng cách */
    display: flex;
    flex-direction: row;
    /* Sắp xếp nội dung theo chiều dọc */
    align-items: center;
    /* Căn giữa các thành phần theo chiều ngang */
    flex-wrap: wrap;
    /* Cho phép các mục bọc xuống dòng khi không đủ không gian */
    justify-content: space-between;
    /* Phân bổ khoảng cách giữa các items */
    width: 60vw;
    margin: 2rem auto 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 2rem;
}

.projects__item {
    position: relative;
    border-bottom: 5px solid #ff652f;
    overflow: hidden;
    cursor: pointer;
}

.projects__item img {
    width: 100%;
}

.projects__item::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: #ff652f;
    opacity: 0;
    transition: all 0.5s ease-in-out;
}

.projects__item:hover::after {
    top: 0;
    opacity: 0.8;
}

.projects__item:hover .projects__btn {
    opacity: 1;
}

.projects .social-icons {
    font-size: 10px;
    display: flex;
    flex-direction: column;
}

.projects footer {
    font-size: 0.8rem;
    transform: rotate(90deg) translate(-4rem, -5rem);
}

.projects__btns {
    position: absolute;
    top: 0;
    height: 100%;
    width: 100%;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
    text-align: center;
}

.projects__btn {
    opacity: 0;
    color: #fff;
    transition: all 0.5s ease-in-out;
}

.projects__btn:hover {
    color: #000;
}

.contact {
    
    min-height: 100vh;  
    height: auto;
    padding-top: 40vh;
    padding: 3rem 1rem 6rem;  
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    /* background: linear-gradient(to right, rgba(39, 39, 39, 0.9), rgba(39, 39, 39, 0.5)), url("../img/contact.png") center; */
    background-size: cover !important;
    background-position: center !important;     /* căn giữa khuôn mặt */
    background-repeat: no-repeat;

}
.contact form {
    margin-top: 6rem;        /* đẩy form xuống dưới header */
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;      /* căn giữa form theo chiều ngang */
}

.contact h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.contact__list {
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 2rem;
    font-size: 1rem;
}

.contact .social-icons {
    font-size: 10px;
    position: initial;
    margin-top: 2rem;
}

.contact .text-secondary {
    margin-top: 5px;
}

.contact footer {
    font-size: 0.8rem;
}

@media screen and (max-width: 768px) and (min-width: 100px) {
    html, body {
        height: auto;
        min-height: 100%;
        overflow-x: hidden;
        overflow-y: auto;       /* bắt buộc phải cuộn được */
    }
    .home {
        font-size: 10px;
    }

    .home .social-icons {
        display: flex;
        flex-direction: column;
    }

    .home footer {
        font-size: 0.8rem;
        transform: rotate(90deg) translate(-4rem, -5rem);
    }

    .home__name--last {
        display: none;
    }
    
}

@media screen and (min-width: 768px) {
    .menu-btn {
        visibility: hidden;
    }

    .nav {
        visibility: visible;
    }

    .nav .menu-nav {
        display: block;
        transform: translateY(0);
        height: 100%;
        background: transparent;
        text-align: center;
    }

    .nav .menu-nav__item {
        display: inline;
        padding-right: 1.5rem;
    }

    .nav .menu-nav__link {
        font-size: 1.5rem;
    }

    .about__bio {
        font-size: 1.5rem;
    }

    .projects__bio-image {
        height: 40vh;
        
    }

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

    .projects .text-secondary {
        font-size: 3rem;
    }

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

@media screen and (min-width: 1024px) {
    .projects__items {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact__list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media screen and (min-width: 1600px) {
    .projects__bio-image {
        height: 50vh;
    }

    .projects__items {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact__list {
        grid-template-columns: repeat(4, 1fr);
    }
}

body {
    background: #272727;
    color: #fff;
    height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1;
}

h1,
h2,
h3 {
    font-weight: 400;
}

a {
    color: #fff;
    text-decoration: none;
}

.text-secondary {
    color: #ff652f !important;
}

header {
    top: 0;
    left: 0;
    position: fixed;
    z-index: 2;
    width: 100%;
    padding: 1rem;
}

header.hidden {
    /* transform: translateY(-100%); */
    display: none;
    /* Hide the header by moving it out of view */
}

main {
    height: 100%;
    width: 100%;
}

main .social-icons {
    position: fixed;
    bottom: 1rem;
    left: 1rem;
}

main .social-icons a {
    padding: 0.4rem;
    transition: all 0.5s ease-in-out;
}

main .social-icons a:hover {
    color: #ff652f;
}

footer {
    font-size: 1rem;
    position: fixed;
    bottom: 0.4rem;
    text-align: right;
    right: 1rem;
    padding: 1rem;
    color: #fff;
}

/*# sourceMappingURL=main.css.map */

/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
    background-color: #b9b6b6;
    color: #000;
    margin: 15% auto; /* 15% from the top and centered */
    padding: 20px;
    border: 1px solid #888;
    width: 80%; /* Could be more or less, depending on screen size */
}

/* The Close Button */
.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

/* Desktop vẫn giữ nguyên */
.projects__bio-image,
.about__bio-image,
.contact,
.home__bio-image {
    background-size: cover;
    background-position: center;      /* đảm bảo desktop cũng đẹp */
    background-repeat: no-repeat;
}

/* Mobile fix (màn ≤ 768px) */
@media (max-width: 768px) {
    .projects__bio-image,
    .about__bio-image,
    .contact,
    .home__bio-image {
        background-position: center center !important;  /* luôn lấy trung tâm */
        background-size: cover !important;              /* tránh zoom sai */
    }
}


/* --- Contact Info Box --- */
.contact-info-box {
    margin: 4rem auto 2rem auto;
    max-width: 450px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(6px);
    padding: 2rem 2.5rem;
    border-radius: 12px;
    color: white;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
    border: 1px solid rgba(255,255,255,0.2);
}

.contact-info-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #ffb86c;
}

.contact-info-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    justify-content: center;
    margin-bottom: 0.9rem;
}

.contact-info-row i {
    font-size: 1.4rem;
    color: #ffb86c;
}

/* --- Social Icons --- */
.social-icons i {
    font-size: 1.6rem !important;
    margin: 0 10px;
    transition: 0.3s;
}

.social-icons i:hover {
    color: #ffffff !important;
    transform: translateY(-4px);
}