@import url('https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,200..1000;1,200..1000&display=swap');
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /*doubt */
    text-decoration: none;
    border: none;
    /*doubt*/
    outline: invert;
    /*doubt*/
    scroll-behavior: smooth;
    font-family: "Nunito", sans-serif;
}

:root
/*doubt*/

{
    --bg-color: #191f36;
    --snd-bg-color: #262B40;
    --text-color: #fff;
    --main-color: #59B2F4;
}

.container {
    perspective: 1000px;
}

.cube {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 1s;
}

.face {
    position: absolute;
    width: 200px;
    height: 200px;
    border: 1px solid #ccc;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-weight: bold;
    color: #333;
    opacity: 0.9;
}


/* Ensure correct positioning of cube faces */

.front {
    transform: translateZ(100px);
}

.back {
    transform: rotateY(180deg) translateZ(100px);
}

.left {
    transform: rotateY(-90deg) translateZ(100px);
}

.right {
    transform: rotateY(90deg) translateZ(100px);
}

.top {
    transform: rotateX(90deg) translateZ(100px);
}

.bottom {
    transform: rotateX(-90deg) translateZ(100px);
}

html {
    font-size: 62.5%;
    /*doubt*/
    overflow-x: hidden;
}

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

section {
    min-height: 100vh;
    /*10 for top,
    20 % for side,
    */
    padding: 10rem 20% 2rem;
}


/*doubt*/

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

.logo {
    font-size: 2.5rem;
    color: var(--text-color);
    background-color: transparent;
    /*for thickness of the text */
    font-weight: 700;
    cursor: default;
}

.navbar a {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-left: 4rem;
    font-weight: 700;
}


/*doubt for no changes*/

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

#menu-icon {
    font-size: 3.6rem;
    color: var(--text-color);
    /*it delete menu bar*/
    display: none;
}

.home
/*from hi to img*/

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

.home-content h3
/*from hi to before img*/

{
    font-size: 3.2rem;
    font-weight: 700;
}


/*doubt*/

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

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

.home-content h1
/*for kanimozhi*/

{
    font-size: 5.6rem;
    font-weight: 700;
    /*space between up and down line*/
    line-height: 1.3;
}

.home-img img {
    animation: floatImage 4s ease-in-out infinite;
    width: 25vw;
    margin: 20%;
    border-radius: 2%;
}

@keyframes floatImage {
    0% {
        transform: translateY(0);
    }
    /*for image up and down*/
    50% {
        transform: translateY(-2.4rem);
    }
    100% {
        transform: translateY(0);
    }
}

.home-content p {
    font-size: 1.6rem;
}

.social-media a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    background: transparent;
    /*it becomes a box shape*/
    border: .2rem solid var(--main-color);
    /*it become circle shape*/
    border-radius: 50%;
    /*icon size change*/
    font-size: 2rem;
    /*to change icon color*/
    color: var(--main-color);
    /*give a space between up and down*/
    /*3rem for top 1.5 for space between 3 for bottom */
    margin: 3rem 1.5rem 3rem 0;
    transition: .5s ease;
}

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


/*for cv*/

.btn {
    display: inline-block;
    padding: 1rem 2.8rem;
    background-color: 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 {
    /*when we touch box shadow becomes none*/
    box-shadow: none;
}

.about {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--snd-bg-color);
}

.about-img img {
    width: 35vw;
}

.heading
/*for about me */

{
    text-align: center;
    font-size: 4.5rem;
}

.about-content h2
/*for about me */

{
    text-align: left;
    line-height: 1.2;
}

.about-content h3
/*for frontend developer*/

{
    font-size: 2.6rem;
}

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


/* Services Section */

.services h2
/*for my services*/

{
    margin-bottom: 5rem;
}

.services-container
/*for 3 paragraph*/

{
    display: flex;
    justify-content: center;
    align-items: center;
    /*doubt*/
    flex-wrap: wrap;
    /*gap between paragraph*/
    gap: 2rem;
}

.services-container .service-box {
    /*for divide into 3 box*/
    flex: 1 1 3rem;
    background: var(--snd-bg-color);
    padding: 3rem 2rem 4rem;
    border-radius: 2rem;
    text-align: center;
    border: .2rem solid var(--bg-color);
    transition: .5s ease;
}

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

.service-box i {
    font-size: 7rem;
    color: var(--main-color);
}

.service-box h3 {
    font-size: 2.6rem;
}

.service-box p {
    font-size: 1.6rem;
    /*1rem for top 3rem for bottom*/
    margin: 1rem 0 3rem;
}


/* Mobile View Adjustments */

@media (max-width: 768px) {
    .services h2 {
        font-size: 3.5rem;
        margin-bottom: 3rem;
    }
    .services-container {
        flex-direction: column;
        gap: 3rem;
    }
    .services-container .service-box {
        width: 100%;
        margin: 0 auto;
        padding: 2rem;
        flex: none;
    }
    .services-container .service-box i {
        font-size: 5rem;
    }
    .services-container .service-box h3 {
        font-size: 2.2rem;
    }
    .services-container .service-box p {
        font-size: 1.4rem;
    }
}


/* Very Small Mobile Adjustments */

@media (max-width: 450px) {
    .services h2 {
        font-size: 3rem;
    }
    .services-container .service-box {
        padding: 1.5rem;
    }
    .services-container .service-box h3 {
        font-size: 2rem;
    }
    .services-container .service-box p {
        font-size: 1.8rem;
    }
}

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

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

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

.portfolio-container .portfolio-box {
    position: relative;
    border-radius: 2rem;
    box-shadow: 0 0 1rem var(--bg-color);
    overflow: hidden;
    display: flex;
}

.portfolio-box img {
    width: 100%;
    transition: .5s ease;
    opacity: 0.7;
}

.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, 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: 2rem;
}

.portfolio-layer p {
    font-size: 1.4rem;
    margin: .3rem 0 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(--snd-bg-color);
}


/* Style for additional info */

.additional-info {
    transition: opacity 0.5s ease;
    opacity: 0;
    /* Start as invisible */
}

.additional-info.active {
    opacity: 1;
    /* Become visible */
}


/* Add any other styles you need for your design */


/*for 3d*/

.contact h2 {
    margin-bottom: 3rem;
}

.contact form {
    max-width: 70rem;
    margin: 1rem auto;
    text-align: center;
    margin-bottom: 3rem;
}

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

.contact form .input-box input,
.contact form textarea {
    width: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    color: var(--text-color);
    background: var(--snd-bg-color);
    border-radius: .8rem;
    margin: .7rem 0;
}

.contact form .input-box input {
    width: 49%;
}

.contact form textarea {
    resize: none;
}

.contact form .btn {
    margin-top: 2rem;
    cursor: pointer;
}

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

.footer-iconTop {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .8rem 1rem;
    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(--snd-bg-color);
}


/*start*/

.resume {
    background: var(--snd-bg-color);
    padding: 7rem 3%;
}

.resume h2 {
    text-align: center;
    font-size: 4.5rem;
    color: var(--text-color);
    margin-bottom: 5rem;
}

.personal-info {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 1.5rem;
    box-shadow: 0 0 1rem var(--main-color);
    margin-bottom: 3rem;
}

.personal-info h3 {
    font-size: 2.6rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.personal-info h3 i {
    margin-right: 1rem;
}

.personal-info ul {
    list-style: none;
}

.personal-info ul li {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.personal-info ul li strong {
    color: var(--main-color);
}

.resume-container {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    flex-wrap: wrap;
}

.resume-box {
    flex: 1;
    background: var(--bg-color);
    padding: 3rem;
    border-radius: 2rem;
    box-shadow: 0 0 1rem var(--main-color);
}

.resume-box h3 {
    font-size: 2.6rem;
    color: var(--main-color);
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.resume-box h3 i {
    margin-right: 1rem;
}

.resume-item h4 {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.resume-item span {
    font-size: 1.4rem;
    color: var(--main-color);
    display: block;
    margin-bottom: 1rem;
}

.resume-item p {
    font-size: 1.6rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.resume-box ul {
    list-style: none;
}

.resume-box ul li {
    font-size: 1.6rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}


/*end*/


/*Break point*/

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

@media (max-width: 991px) {
    .header {
        padding: 2rem 3%;
    }
    section {
        padding: 10rem 3%;
    }
    .services {
        padding: 7rem;
    }
    .portfolio {
        padding-bottom: 7rem;
    }
    .contact {
        min-height: auto;
    }
    .footer {
        padding: 2rem 3%
    }
}

@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: 5rem;
    }
    .home-content {
        order: 2;
    }
    .home-img img {
        width: 70vw;
        margin-top: 4rem;
        margin: 0%;
    }
    .about {
        flex-direction: column;
    }
    .about-img img {
        width: 90vw;
        margin-top: 4rem;
    }
    .services h2 {
        margin-bottom: 3rem;
    }
    .portfolio h2 {
        margin-bottom: 3rem;
    }
    .portfolio-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 617px) {
    .portfolio-container {
        grid-template-columns: 1fr;
    }
    .home-img img {
        width: 80vw;
        margin-top: 8rem;
        margin: 0%;
    }
    .about-img img {
        width: 100vw;
        margin-top: 4rem;
    }
}

@media(max-width: 450) {
    html {
        font-size: 50%;
    }
    .contact form .input-box input {
        width: 100%
    }
}


/*for dark and light mode , color*/


/* Base Variables for Light and Dark Themes */


/* Dark Theme */

body.dark-mode {
    --bg-color: #191f36;
    /* Dark background */
    --snd-bg-color: #262B40;
    /* Dark secondary background */
    --text-color: #ffffff;
    /* Light text for dark mode */
    --main-color: #59B2F4;
    /* Default main color */
}


/* Light Theme (Default) */

body.light-mode {
    --bg-color: #f4f4f9;
    /* Light background */
    --snd-bg-color: #e0e0e0;
    /* Light secondary background */
    --text-color: #333;
    /* Dark text for light mode */
    --main-color: #59B2F4;
    /* Default main color */
}


/* Section-specific background colors */


/* Section 1: Home */

section#home {
    background-color: var(--bg-color);
    color: var(--text-color);
}


/* Section 2: Services */

section#services {
    background-color: var(--snd-bg-color);
    color: var(--text-color);
}


/* Section 3: Portfolio */

section#portfolio {
    background-color: var(--bg-color);
    color: var(--text-color);
}


/* Section 4: Contact */

section#contact {
    background-color: var(--snd-bg-color);
    color: var(--text-color);
}


/* Color Themes */


/* Blue Theme */

body.blue-theme {
    --main-color: #59B2F4;
    /* Blue main color */
}


/* Green Theme */

body.green-theme {
    --main-color: #66BB6A;
    /* Green main color */
}


/* Red Theme */

body.red-theme {
    --main-color: #E57373;
    /* Red main color */
}


/* Purple Theme */

body.purple-theme {
    --main-color: #BA68C8;
    /* Purple main color */
}


/* Orange Theme */

body.orange-theme {
    --main-color: #FFB74D;
    /* Orange main color */
}


/* Teal Theme */

body.teal-theme {
    --main-color: #4DB6AC;
    /* Teal main color */
}


/* Applying the variables */

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}


/* Navbar and buttons */

header,
.navbar,
button,
a {
    background-color: transparent;
    color: var(--text-color);
}

button {
    cursor: pointer;
}


/* Optional button styling for toggles */

#dark-light-btn,
#color-mode-btn {
    padding: 10px;
    border: none;
    background-color: var(--main-color);
    color: var(--text-color);
    font-size: 16px;
    margin: 5px;
    border-radius: 5px;
    cursor: pointer;
}


/* Show color options after clicking 'Change Color' */

#color-options {
    display: none;
    margin-top: 10px;
}

#color-options.active {
    display: flex;
    gap: 10px;
}


/* Styling each color box */

.color-box {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #fff;
}

.color-box.blue {
    background-color: #59B2F4;
}

.color-box.green {
    background-color: #66BB6A;
}

.color-box.red {
    background-color: #E57373;
}

.color-box.purple {
    background-color: #BA68C8;
}

.color-box.orange {
    background-color: #FFB74D;
}

.color-box.teal {
    background-color: #4DB6AC;
}