@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-color: #081b29;
    --second-bg-color: #112e42;
    --text-color: #ededed;
    --main-color: #00abf0; /* Neon cyan/blue for data theme */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
}

html {
    font-size: 62.5%; /* 1rem = 10px */
    overflow-x: hidden;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 9%;
    background: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    transition: .3s;
}

.header.sticky {
    background: var(--bg-color);
    border-bottom: 1px solid rgba(0, 171, 240, 0.2);
}

.logo {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 700;
    cursor: default;
}

.logo span {
    color: var(--main-color);
}

.navbar a {
    font-size: 1.7rem;
    color: var(--text-color);
    margin: 0 2rem;
    transition: .3s;
}

.navbar a:hover,
.navbar a.active {
    color: var(--main-color);
}

#menu-icon {
    font-size: 3.6rem;
    color: var(--text-color);
    cursor: pointer;
    display: none;
}

section {
    min-height: 100vh;
    padding: 10rem 9% 2rem;
}

.home {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5rem;
}

.home-content h3 {
    font-size: 3.2rem;
    font-weight: 700;
}

.home-content h3:nth-of-type(2) {
    margin-bottom: 2rem;
}

span.multiple-text {
    color: var(--main-color);
}

.home-content h1 {
    font-size: 7.5rem;
    font-weight: 700;
    line-height: 1.3;
}

.home-content p {
    font-size: 1.6rem;
    margin-bottom: 4rem;
    line-height: 1.6;
    color: #b0c4de;
}

.social-media a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    background: transparent;
    border: .2rem solid var(--main-color);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--main-color);
    margin: 3rem 1.5rem 3rem 0;
    transition: .5s ease;
}

.social-media a:hover {
    background: var(--main-color);
    color: var(--bg-color);
    box-shadow: 0 0 1rem var(--main-color);
}

.btn {
    display: inline-block;
    padding: 1rem 2.8rem;
    background: var(--main-color);
    border-radius: 4rem;
    box-shadow: 0 0 1rem var(--main-color);
    font-size: 1.6rem;
    color: var(--bg-color);
    letter-spacing: .1rem;
    font-weight: 600;
    transition: .5s ease;
}

.btn:hover {
    box-shadow: none;
}

.home-img .img-box {
    position: relative;
    width: 32vw;
    height: 32vw;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: var(--second-bg-color);
    box-shadow: 0 0 2rem var(--main-color);
}

.home-img .img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.heading {
    text-align: center;
    font-size: 4.5rem;
    margin-bottom: 5rem;
}

.heading span {
    color: var(--main-color);
}

.about {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    background: var(--second-bg-color);
}

.about-img img {
    width: 30vw;
    border-radius: 2rem;
    border: .2rem solid var(--main-color);
    box-shadow: 0 0 1rem var(--main-color);
}

.about-content h2 {
    text-align: left;
    margin-bottom: 1.5rem;
}

.about-content h3 {
    font-size: 2.6rem;
}

.about-content p {
    font-size: 1.6rem;
    margin: 2rem 0 3rem;
    line-height: 1.6;
    color: #b0c4de;
}

.skills h2 {
    margin-bottom: 5rem;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(25rem, 1fr));
    gap: 2.5rem;
}

.skills-box {
    background: var(--second-bg-color);
    padding: 3rem 2rem;
    border-radius: 2rem;
    text-align: center;
    border: .2rem solid var(--bg-color);
    transition: .5s ease;
}

.skills-box:hover {
    border-color: var(--main-color);
    transform: scale(1.02);
}

.skills-box i {
    font-size: 5rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
}

.skills-box h3 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.skills-box p {
    font-size: 1.4rem;
    color: #b0c4de;
    line-height: 1.6;
}

.portfolio {
    background: var(--second-bg-color);
}

.portfolio-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(40rem, 1fr));
    gap: 2.5rem;
}

.portfolio-box {
    position: relative;
    border-radius: 2rem;
    box-shadow: 0 0 1rem var(--bg-color);
    overflow: hidden;
    display: flex;
    border: .2rem solid transparent;
    transition: .5s ease;
}

.portfolio-box:hover {
    border-color: var(--main-color);
}

.portfolio-box img {
    width: 100%;
    transition: .5s ease;
}

.portfolio-box:hover img {
    transform: scale(1.1);
}

.portfolio-layer {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,.1), var(--main-color));
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    padding: 0 4rem;
    transform: translateY(100%);
    transition: .5s ease;
}

.portfolio-box:hover .portfolio-layer {
    transform: translateY(0);
}

.portfolio-layer h4 {
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 1rem;
}

.portfolio-layer p {
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 2rem;
}

.portfolio-layer a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 5rem;
    height: 5rem;
    background: #fff;
    border-radius: 50%;
    color: var(--bg-color);
}

.portfolio-layer a i {
    font-size: 2rem;
}

.cta {
    background: var(--bg-color);
    text-align: center;
    padding-bottom: 10rem;
}

.cta-text {
    font-size: 2rem;
    color: #b0c4de;
    margin-bottom: 4rem;
    line-height: 1.6;
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.btn-outline {
    background: transparent;
    color: var(--main-color);
    border: .2rem solid var(--main-color);
}

.btn-outline:hover {
    background: var(--main-color);
    color: var(--bg-color);
}


.footer {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
    background: var(--second-bg-color);
    position: relative;
}

.footer-text p {
    font-size: 1.6rem;
    text-align: center;
}

.footer-iconTop {
    position: absolute;
    right: 9%;
}

.footer-iconTop a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .8rem;
    background: var(--main-color);
    border-radius: .8rem;
    transition: .5s ease;
}

.footer-iconTop a:hover {
    box-shadow: 0 0 1rem var(--main-color);
}

.footer-iconTop a i {
    font-size: 2.4rem;
    color: var(--bg-color);
}

/* RESPONSIVE DESIGN */
@media (max-width: 1200px) {
    html {
        font-size: 55%;
    }
}

@media (max-width: 991px) {
    .header {
        padding: 2rem 3%;
    }
    section {
        padding: 10rem 3% 2rem;
    }
    .footer {
        padding: 2rem 3%;
    }
    .portfolio-container {
        grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
    }
}

@media (max-width: 768px) {
    #menu-icon {
        display: block;
    }

    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem 3%;
        background: var(--bg-color);
        border-top: .1rem solid rgba(0,0,0,.2);
        box-shadow: 0 .5rem 1rem rgba(0,0,0,.2);
        display: none;
    }

    .navbar.active {
        display: block;
    }

    .navbar a {
        display: block;
        font-size: 2rem;
        margin: 3rem 0;
    }

    .home {
        flex-direction: column;
    }

    .home-content h3 {
        font-size: 2.6rem;
    }

    .home-content h1 {
        font-size: 6rem;
    }

    .home-img .img-box {
        width: 70vw;
        height: 70vw;
    }

    .about {
        flex-direction: column-reverse;
    }

    .about-img img {
        width: 70vw;
        margin-top: 4rem;
    }
}

@media (max-width: 450px) {
    html {
        font-size: 50%;
    }
    .contact form .input-box input {
        width: 100%;
    }
    .portfolio-container {
        grid-template-columns: 1fr;
    }
}