@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap'); 

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

:root {
    --bg-color: #ffffff; /* White background */
    --second-bg-color: #87CEEB; /* Light gray background */
    --text-color: #000000; /* Black text color */
    --main-color: #0d1b2a; /* Dark blue for accents */
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
    width: 100vw;
    scroll-behavior: smooth;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    padding: 2rem 9%;
    background: var(--bg-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.logo {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 600;
}

.navbar a {
    font-size: 1.7rem;
    color: var(--text-color);
    font-weight: 500;
    margin-left: 3.5rem;
    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;
    max-height: auto;
    padding: 10rem 9% 2rem;
}

.home {
    display: flex;
    align-items: center;
    padding: 0 9%;
    justify-content: space-between;
}

.my-img { 
    display: flex;
    justify-content: center;
    width: 40rem;
}

.my-img img {
    margin: 0 auto;
    width: 30rem;
    border-radius: 50%;
}

.home-content {
    max-width: 60rem;
}

.home-content h1 {
    font-size: 5.6rem;
    font-weight: 700;
    line-height: 1.3;
}

.home-content .text-animate {
    
    font-size: 3.2rem;
}

.home-content .text-animate span {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--main-color);
    /* -webkit-text-stroke: .7px var(--main-color); */
}

.home-content p {
    font-size: 1.6rem;
    margin: 2rem 0 4rem;
}

.btn-box {
    position: relative;
    display: flex;
    justify-content: space-between;
    width: 34.5rem;
    height: 5rem;
}

.btn-box .btn {
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 15rem;
    height: 100%;
    background: var(--main-color);
    border: .2rem solid var(--main-color);
    border-radius: .8rem;
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: .1rem;
    color: var(--bg-color);
    z-index: 1;
    overflow: hidden;
    transition: .5s;
}

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

.btn-box .btn:nth-child(2) {
    background: transparent;
    color: var(--main-color);
}

.btn-box .btn:nth-child(2):hover {
    color: var (--bg-color);
}

.btn-box .btn:nth-child(2)::before {
    background: var(--main-color);
}

.btn-box .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--bg-color);
    z-index: -1;
    transition: .5s;
}

.btn-box .btn:hover::before {
    width: 100%;
}

.home-sci {
    position: absolute;
    bottom: 4rem;
    width: 22rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.home-sci a {
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: .2rem solid var(--main-color);
    border-radius: 50%;
    font-size: 20px;
    color: var(--main-color);
    z-index: 1;
    overflow: hidden;
    transition: .5s;
}

.home-sci a:hover {
    color: var(--bg-color);
}

.home-sci a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--main-color);
    z-index: -1;
    transition: .5s;
}

.home-sci a:hover::before {
    width: 100%;
}

.about {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: row;
    gap: 1rem;
    background: var(--second-bg-color);
    padding-bottom: 6rem;
    flex-wrap: wrap;
}

.about-details {
    width: 60%;
}

.heading {
    font-size: 5rem;
    margin-bottom: 3rem;
    text-align: center;
}

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

.about-img {
    position: relative;
    width: 30rem;
    height: 30rem;
    border-radius: 50;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-img img {
    width: 90%;
    border-radius: 50%;
    border: .2rem solid var(--main-color);
}

.about-img .circle-spin {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(0);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border-top: .2rem solid var(--second-bg-color);
    border-bottom: .2rem solid var(--second-bg-color);
    border-left: .2rem solid var(--main-color);
    border-right: .2rem solid var(--main-color);
    animation: aboutSpinner 8s linear infinite;
}

.about-content {
    text-align: center;
}

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

.about-content p {
    font-size: 1.6rem;
    margin: 2rem 0 3rem;
}

.btn-box.btns {
    display: inline-block;
    width: 15rem;
    border-radius: .8rem;
}

.btn-box.btns a::before {
    background: var(--second-bg-color);
}

.education {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: row;
    min-height: auto;
    padding-bottom: 5rem;
}

.education .education-row {
    display: flex;
    flex-wrap: wrap;
    gap: 5rem;
}

.education-row .education-column {
    flex: 1 1 40rem;
}

.education-column .title {
    font-size: 2.5rem;
    margin: 0 0 1.5rem 2rem;
}

.education-column .education-box {
    border-left: .2rem solid var(--main-color);
}

.education-box .education-content {
    position: relative;   
    padding-left: 2rem;
}

.education-box .education-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: -1.1rem;
    width: 2rem;
    height: 2rem;
    background: var(--main-color);
    border-radius: 50%;
}

.education-content .content {
    position: relative;
    padding: 1.5rem;
    border: .2rem solid var(--main-color);
    border-radius: .6rem;
    margin-bottom: 2rem;
}

.education-content .content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--second-bg-color);
    z-index: -1;
    transition: .5s;
}

.education-content .content:hover::before {
    width: 100%;
}

.education-content .content .year {
    font-size: 1.5rem;
    color: var(--main-color);
    padding-bottom: .5rem;
}

.education-content .content .year i {
    padding-right: .5rem;
}

.education-content .content h3 {
    font-size: 2rem;
}

.education-content .content p {
    font-size: 1.6rem;
    padding-top: .5rem;
}

/* Detailed job descriptions */
.education-content ul,
.education-content ul li {
    font-size: 1.8rem; /* Slightly larger font for list items */
    line-height: 1.8; /* More line spacing for readability */
    list-style-type: disc; /* Adds bullet points to lists */
    margin-left: 2rem; /* Indents lists for clarity */
}

.tech-stack {
    background: var(--second-bg-color);
    padding: 5rem 9%; /* Adjust padding as needed */
    text-align: left;
    color: var(--text-color);
}

.tech-stack .heading {
    color: var(--main-color);
    font-size: 4rem;
    text-align: center;
    margin-bottom: 3rem;
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.tech-category {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.tech-category h3 {
    font-size: 2rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
}

.tech-category ul {
    list-style: none;
    padding: 0;
}

.tech-category ul li {
    font-size: 1.6rem;
    line-height: 1.5;
    padding: 0.5rem 0;
}

@media (max-width: 768px) {
    .tech-categories {
        grid-template-columns: 1fr;
    }
}

.skills {
    min-height: auto;
    padding-bottom: 7rem;
    background: var(--second-bg-color);
}

.skills .skills-row {
    display: flex;
    flex-wrap: wrap;
    gap: 5rem;
}

.skills-row .skills-column {
    flex: 1 1 40rem;
}

.skills-column .title {
    font-size: 2.5rem;
    margin: 0 0 1.5rem;
}

.skills-box .skills-content {
    position: relative;
    border: .2rem solid var(--main-color);
    border-radius: .6rem;
    padding: .5rem 1.5rem;
    z-index: 1;
    overflow: hidden;
}

.skills-box .skills-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--bg-color);
    z-index: -1;
    transition: .5s;
}

.skills-box .skills-content:hover::before {
    width: 100%;
}

.skills-content .progress {
    padding: 1rem 0;
}

.skills-content .progress h3 {
    font-size: 1.7rem;
    display: flex;
    justify-content: space-between;
}

.skills-content .progress h3 span {
    color: var(--text-color);
}

.skills-content .progress .bar {
    height: 2.5rem;
    border-radius: .6rem;
    border: .2rem solid var (--main-color);
    padding: .5rem;
    margin: 1rem 0;
}

.skills-content .progress .bar span {
    display: block;
    height: 100%;
    border-radius: .3rem;
    background: var(--main-color);
}

.skills-column:nth-child(1) .skills-content .progress:nth-child(1) .bar span {
    width: 95%;
}

.skills-column:nth-child(1) .skills-content .progress:nth-child(2) .bar span {
    width: 90%;
}

.skills-column:nth-child(1) .skills-content .progress:nth-child(3) .bar span {
    width: 75%;
}

.skills-column:nth-child(1) .skills-content .progress:nth-child(4) .bar span {
    width: 85%;
}

.skills-column:nth-child(2) .skills-content .progress:nth-child(1) .bar span {
    width: 85%;
}

.skills-column:nth-child(2) .skills-content .progress:nth-child(2) .bar span {
    width: 80%;
}

.skills-column:nth-child(2) .skills-content .progress:nth-child(3) .bar span {
    width: 75%;
}

.skills-column:nth-child(2) .skills-content .progress:nth-child(4) .bar span {
    width: 55%;
}

.certifications {
    background: var(--second-bg-color);
    padding: 5rem 12%;
    color: var(--text-color);
}

.certifications .heading {
    color: var(--main-color);
    font-size: 4rem;
    text-align: center;
    margin-bottom: 3rem;
}

.certification-categories {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr)); /* 4 equal-width columns */
    gap: 2rem; /* Adds space between grid items */
}

.certification-category {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    height: 100%; /* Makes all items the same height */
    display: flex;
    flex-direction: column; /* Vertical alignment of content */
    justify-content: space-between; /* Space distribution within the container */
}

.certification-category h3 {
    font-size: 2rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
}

.certification-category ul {
    list-style: none;
    padding: 0;
    margin: 0; /* Ensure no margin around the list */
}

.certification-category ul li {
    font-size: 1.6rem; /* Font size for certification list items */
    line-height: 1.8;  /* Line height for better readability */
    padding: 0.5rem 0; /* Adds padding around the list items */
    margin-bottom: 0.5rem; /* Adds space between the list items */
    color: var(--text-color); /* Ensures consistent text color */
    display: flex; /* Aligns text vertically */
    align-items: center; /* Centers items vertically */
    justify-content: space-between; /* Adds spacing between items */
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
    .certification-categories {
        grid-template-columns: 1fr; /* Switch to single column on smaller screens */
    }
}


.portfolio {
    min-height: auto;
    padding-bottom: 7rem;
}

.portfolio h2 {
    margin-bottom: 4rem;
}

.portfolio-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-items: center;
    flex-wrap: wrap;
    gap: 2.5rem;
}

.portfolio-container .portfolio-box {
    position: relative;
    border-radius: 2rem;
    box-shadow: 0 0 1rem rgb(189, 127, 247);
    overflow: hidden;
    display: flex;
}

.portfolio-box img {
    width: 100%;
    height: 200px; /* Set a fixed height for all images */
    object-fit: cover; /* Ensures the image covers the box without distortion */
    display: block;
    border-radius: 15px; /* Align with .portfolio-box */
    transition: .5s ease; 
}

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

.portfolio-box .portfolio-layer {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, .35), var(--second-bg-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: 2.25rem;
}

.portfolio-layer p {
    font-size: 1.25rem;
    margin: .3rem 0 1rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

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

.portfolio-layer a i {
    font-size: 2rem;
    color: var(--second-bg-color);
}

.portfolio-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Three columns */
    justify-content: center; /* Center grid items */
    gap: 2.5rem;
    padding: 0 5rem; /* Adjust padding as needed */
}

.portfolio-box {
    background: var(--second-bg-color); /* Optional: gives a background to the boxes */
    border-radius: 15px; /* Rounded corners */
    overflow: hidden;
    transition: transform .3s ease-in-out; /* Smooth transform effect */
}

@media (max-width: 1024px) {
    .portfolio-container {
        grid-template-columns: repeat(2, 1fr); /* Two columns for smaller screens */
    }
}

@media (max-width: 768px) {
    .portfolio-container {
        grid-template-columns: repeat(1, 1fr); /* Single column for mobile screens */
    }
}

.publication-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-items: center;
    flex-wrap: wrap;
    gap: 2.5rem;
    padding: 0 5rem; /* Adjust padding as needed */
}

.publication-box {
    background: var(--second-bg-color); /* Optional: gives a background to the boxes */
    border-radius: 15px; /* Rounded corners */
    overflow: hidden;
    transition: transform .3s ease-in-out; /* Smooth transform effect */
}

.publication-box img {
    width: 100%;
    height: 200px; /* Set a fixed height for all publication images */
    object-fit: cover; /* Ensures the image covers the box without distortion */
    display: block;
    border-radius: 15px; /* Align with .publication-box */
    transition: .5s ease; 
}

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

@media (max-width: 1024px) {
    .publication-container {
        grid-template-columns: repeat(2, 1fr); /* Two columns for smaller screens */
    }
}

@media (max-width: 768px) {
    .publication-container {
        grid-template-columns: repeat(1, 1fr); /* Single column for mobile screens */
    }
}

.contact {
    /* min-height: 80vh; */
    padding-bottom: 7rem;
    background-color: var(--second-bg-color);
}

.contact form {
    max-width: 70rem;
    margin: 0 auto;
    text-align: center;
}

.contact form .input-box {
    position: relative;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.contact form .input-box .input-field {
    position: relative;
    width: 49%;
    margin: .8rem 0;
}

.contact form .input-box .input-field input,
.contact form .textarea-field textarea {
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    color: var(--text-color);
    background: transparent;
    border-radius: .6rem;
    border: .2rem solid var(--main-color);
} 

.contact form .input-box .input-field input::placeholder,
.contact form .textarea-field textarea::placeholder {
    color: var(--text-color);
}   

.contact form .focus {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--second-bg-color);
    border-radius: .6rem;
    z-index: -1;
    transition: .5s;
}

.contact form .input-box .input-field input:focus~.focus,
.contact form .input-box .input-field input:valid~.focus,
.contact form .textarea-field textarea input:focus~.focus,
.contact form .textarea-field textarea input:valid~.focus {
    width: 100%;
}


.contact form .textarea-field {
    position: relative;
    margin: .8rem 0 2.7rem;
    display: flex;
}

.contact form .textarea-field textarea {
    resize: none;
}

.contact form .btn-box.btns .btn {
    cursor: pointer;
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
}

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

.footer-iconTop a {
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .8rem;
    background: var(--main-color);
    border: .2rem solid var(--main-color);
    border-radius: .6rem;
}

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

@media (max-width: 1200px) {
    html {
        font-size: 55%;
        overflow-x: hidden;
    }
}

@media (max-width: 991px) {
    html {
        overflow-x: hidden;
    }

    .header {
        padding: 2rem 4%;
    }

    section {
        padding: 10rem 4% 2rem;
    }

    .home {
        padding: 0 4%;
    }

    .footer {
        padding: 2rem 4%;
    }
}

@media (max-width: 884px) {
    html {
        overflow-x: hidden;
    }
    
    .portfolio-layer h4 {
        font-size: 2rem;
    }

    .portfolio-layer p {
        font-size: 1rem;
    }

    .portfolio-layer a {
        width: 3rem;
        height: 3rem;
    }
}

@media (max-width: 768px) {
    html {
        width: 100vw;
        overflow-x: hidden;
    } 

    .header {
        background: var(--bg-color);
        width: 100vw;
    }

    #menu-icon {
        display: block;
    }

    .navbar {
        position: absolute;
        top: 100%;
        left: -100%;
        width: 100%;
        padding: 1rem 4%;
        background: var(--bg-color);
        box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .2);
        transition: .30s ease;
        transition-delay: .30s;
    }

    .navbar.active {
        left: 0;
        transition-delay: .30s;
    }

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

    .home {
        padding-top: 10rem;
        flex-direction: column;
        justify-content: space-evenly;
        max-height: 200vh;
    }

    .home-content h1, .home-content p {
        text-align: center;
    }

    .home-content .text-animate {
        margin: 0 auto;
        text-align: center;
    }

    .home .home-info {
        order: 2;
        height: 45rem;
    }

    .home-sci {
        width: 25rem;
        position: static;
        margin: 5rem auto;
    }
 
    .home .home-info .home-content .btn-box {
        margin: 0 auto;
    }

    .about {
        flex-direction: column;
        justify-content: space-evenly;
    }

    .about .about-details {
        width: 90%;
    }

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

    .portfolio-layer h4 {
        font-size: 2.25rem;
    }

    .portfolio-layer p {
        font-size: 1.5rem;
    }

    .portfolio-layer a {
        width: 5rem;
        height: 5rem;
    }

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

    .publication-layer h4 {
        font-size: 2.25rem;
    }

    .publication-layer p {
        font-size: 1.5rem;
    }

    .publication-layer a {
        width: 5rem;
        height: 5rem;
    }
}

@media (max-width: 654px) {
    html {
        font-size: 50%;
    }

    .portfolio-container {
        grid-template-columns: repeat(1, 1fr);
        gap: 5rem;
    }

    .portfolio-layer h4 {
        font-size: 2.5rem;
    }
    
    .portfolio-layer p {
        margin-top: 2rem;
        font-size: 2rem;
    }

    .portfolio-layer a {
        margin-top: 3.5rem;
        width: 6rem;
        height: 6rem;
    }

    .portfolio-layer a i {
        font-size: 3rem;
    }

    .publication-container {
        grid-template-columns: repeat(1, 1fr);
        gap: 5rem;
    }

    .publication-layer h4 {
        font-size: 2.5rem;
    }
    
    .publication-layer p {
        margin-top: 2rem;
        font-size: 2rem;
    }

    .publication-layer a {
        margin-top: 3.5rem;
        width: 6rem;
        height: 6rem;
    }

    .publication-layer a i {
        font-size: 3rem;
    }
}

@keyframes aboutSpinner {
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 9%;
    background: var(--bg-color);
    color: var(--text-color);
}

.footer .btn-box, .footer .home-sci {
    display: flex;
    align-items: center;
    gap: 20px;  /* Spacing between icons and the button */
}

.footer .btn-box a, .footer .home-sci a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;  /* Size of the icons */
    height: 40px;  /* Size of the icons */
    border-radius: 50%;  /* Makes the icons round */
    background-color: #00abf0;  /* Blue background for the icons */
    color: var(--bg-color);  /* Text color inside the icons */
    font-size: 20px;  /* Icon font size */
    border: none;  /* No border for the icons */
    text-decoration: none;  /* No underline for links */
}

.footer .btn-box a {
    width: auto;  /* Auto width for the resume button */
    padding: 10px 20px;  /* Padding inside the resume button */
    border-radius: 20px;  /* Rounded corners for the button */
    background: transparent;  /* Transparent background for the button */
    border: 2px solid var(--main-color);  /* Blue border for the button */
    font-size: 16px;  /* Font size for the button text */
    color: var(--main-color);  /* Blue text color for the button */
}

.footer .btn-box a:hover, .footer .home-sci a:hover {
    background-color: var(--main-color);  /* Blue background on hover */
    color: var(--bg-color);  /* White text on hover */
}

.footer p {
    flex-grow: 1;  /* Allows the copyright text to take available space */
    text-align: center;  /* Centers the copyright text */
    margin: 0 20px;  /* Margin around the text */
}

.footer a {
    text-decoration: none;  /* Ensures links are not underlined */
}

@media (max-width: 768px) {
    .footer {
        flex-direction: column;  /* Stacks the elements vertically on small screens */
        align-items: center;  /* Aligns items centrally */
    }
    .footer .btn-box, .footer .home-sci {
        justify-content: center;  /* Centers the buttons and icons horizontally */
    }
}