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

:root {
    --bg-color: #f7f7fc;
    --second-bg-color: #ffffff;
    --text-color: #1f242d;
    --main-color: #6366f1; /* Modern Indigo */
    --main-color-hover: #4f46e5;
    --glass-bg: rgba(255, 255, 255, 0.5);
    --glass-border: rgba(255, 255, 255, 0.8);
    --shadow: rgba(0, 0, 0, 0.05);
}

.dark-mode {
    --bg-color: #0f172a;
    --second-bg-color: #1e293b;
    --text-color: #f8fafc;
    --main-color: #818cf8; /* Light Indigo for dark mode */
    --main-color-hover: #6366f1;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: rgba(0, 0, 0, 0.5);
}

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

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

body {
    background: var(--bg-color);
    color: var(--text-color);
    transition: background 0.4s ease, color 0.4s ease;
    /* Subtle animated gradient background */
    background: linear-gradient(-45deg, var(--bg-color), var(--second-bg-color), var(--bg-color), var(--second-bg-color));
    background-size: 400% 400%;
    animation: gradientBG 20s ease infinite;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Glassmorphism Classes */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 var(--shadow);
    border-radius: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px 0 rgba(0, 0, 0, 0.15);
    border: 1px solid var(--main-color);
}

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

.heading {
    text-align: center;
    font-size: 4.5rem;
    margin-bottom: 3rem;
    font-weight: 700;
}

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

/* Header & Navbar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 9%;
    background: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    transition: 0.4s ease-in-out;
}

.header.sticky {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px var(--shadow);
    padding: 1.5rem 9%;
}

.logo {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 1px;
}

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

.navbar a {
    font-size: 1.7rem;
    color: var(--text-color);
    margin-left: 4rem;
    font-weight: 500;
    transition: 0.3s;
    position: relative;
}

.navbar a:first-child {
    margin-left: 0;
}

.navbar a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--main-color);
    bottom: -5px;
    left: 0;
    transition: 0.3s;
}

.navbar a:hover::after,
.navbar a.active::after {
    width: 100%;
}

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

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

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.theme-btn {
    background: transparent;
    font-size: 2.4rem;
    color: var(--text-color);
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-btn:hover {
    color: var(--main-color);
    transform: rotate(30deg) scale(1.1);
}

/* Home Section */
.home {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4rem;
}

.home-content {
    flex: 1;
}

.home-content h3 {
    font-size: 3.2rem;
    font-weight: 700;
    opacity: 0;
    animation: fadeInDown 1s ease forwards;
}

.home-content h1 {
    font-size: 5.6rem;
    font-weight: 800;
    line-height: 1.3;
    background: linear-gradient(90deg, var(--text-color), var(--main-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0;
    animation: fadeInLeft 1s ease forwards;
    animation-delay: 0.3s;
}

.home-content h3:nth-of-type(2) {
    margin-top: 1rem;
    opacity: 0;
    animation: fadeInRight 1s ease forwards;
    animation-delay: 0.6s;
}

.home-content p {
    font-size: 1.6rem;
    margin: 2rem 0 4rem;
    line-height: 1.8;
    color: var(--text-color);
    opacity: 0.9;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.9s;
}

.home-content .multiple-text {
    color: var(--main-color);
    font-weight: 600;
}

/* Typing Cursor Animation */
.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--text-color);
    animation: blink 1s infinite alternate;
}

@keyframes blink {
    50% { opacity: 0; }
}

.social-media {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 1.2s;
}

.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-right: 1.5rem;
    margin-bottom: 2rem;
    transition: 0.5s ease;
}

.social-media a:hover {
    background: var(--main-color);
    color: var(--second-bg-color);
    box-shadow: 0 0 1.5rem var(--main-color);
    transform: translateY(-5px);
}

.btn-box {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 1.5s;
    display: flex;
    gap: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1.2rem 3rem;
    background: var(--main-color);
    border-radius: 4rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    font-size: 1.6rem;
    color: #fff; /* Always white text on button for contrast */
    letter-spacing: .1rem;
    font-weight: 600;
    transition: 0.4s ease;
    cursor: pointer;
    border: .2rem solid var(--main-color);
}

.btn:hover {
    box-shadow: 0 0.5rem 2rem var(--main-color);
    background: var(--main-color-hover);
    transform: translateY(-3px);
}

.home-img {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: zoomIn 1s ease forwards;
    animation-delay: 0.5s;
}

.home-img .img-box {
    width: 35vw;
    height: 35vw;
    max-width: 450px;
    max-height: 450px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--glass-border);
    box-shadow: 0 0 5rem rgba(0,0,0,0.1);
    animation: floatImage 4s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.home-img .img-box::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: conic-gradient(transparent, transparent, transparent, var(--main-color));
    animation: rotateGradient 4s linear infinite;
}

.home-img .img-box::after {
    content: '';
    position: absolute;
    inset: 5px;
    background: var(--bg-color);
    border-radius: 50%;
}

.home-img .img-box i {
    font-size: 15rem;
    color: var(--main-color);
    z-index: 2;
}

@keyframes floatImage {
    0% { transform: translateY(0); }
    50% { transform: translateY(-2.5rem); }
    100% { transform: translateY(0); }
}

@keyframes rotateGradient {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Base Animations */
@keyframes fadeInDown {
    0% { opacity: 0; transform: translateY(-50px); }
    100% { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(50px); }
    100% { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
    0% { opacity: 0; transform: translateX(-50px); }
    100% { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
    0% { opacity: 0; transform: translateX(50px); }
    100% { opacity: 1; transform: translateX(0); }
}
@keyframes zoomIn {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

/* About Section */
.about {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6rem;
    background: var(--second-bg-color);
}

.about-img .img-box {
    width: 30vw;
    height: 30vw;
    max-width: 400px;
    max-height: 400px;
    border-radius: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--glass-bg);
    border: .2rem solid var(--main-color);
    box-shadow: 0 0 3rem rgba(0,0,0,0.1);
    transform: rotate(5deg);
    transition: 0.5s ease;
}

.about-img .img-box:hover {
    transform: rotate(0deg);
}

.about-img .img-box i {
    font-size: 12rem;
    color: var(--main-color);
}

.about-content h2 {
    text-align: left;
}

.about-content h3 {
    font-size: 2.6rem;
    color: var(--main-color);
}

.about-content p {
    font-size: 1.6rem;
    margin: 2rem 0;
    line-height: 1.8;
}

.education-card {
    padding: 2.5rem;
    margin-top: 2rem;
    display: inline-block;
    border-left: 5px solid var(--main-color);
}

.education-card i {
    font-size: 4rem;
    color: var(--main-color);
    margin-bottom: 1rem;
}

.education-card h4 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.education-card p {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* Services Section */
.services {
    background: var(--bg-color);
}

.services-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.services-box {
    padding: 3.5rem 2.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.services-box i {
    font-size: 6.5rem;
    color: var(--main-color);
    margin-bottom: 2rem;
    transition: 0.5s ease;
}

.services-box:hover i {
    transform: scale(1.1) translateY(-10px);
    color: var(--main-color-hover);
}

.services-box h3 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.services-box p {
    font-size: 1.5rem;
    line-height: 1.8;
    color: var(--text-color);
    opacity: 0.9;
}

/* Skills Section */
.skills {
    background: var(--second-bg-color);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skills-box {
    padding: 3rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.skills-box i {
    font-size: 6.5rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
    transition: 0.5s ease;
}

.skills-box:hover i {
    transform: scale(1.2) translateY(-10px);
    color: var(--main-color-hover);
}

.skills-box h3 {
    font-size: 1.8rem;
    font-weight: 600;
}

/* Projects Section */
.projects {
    background: var(--bg-color);
}

.projects-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    padding: 0; /* Remove padding for image edge-to-edge */
}

.project-img {
    height: 22rem;
    background: linear-gradient(135deg, var(--main-color), #3b82f6);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: .5s ease;
}

.project-img i {
    font-size: 8rem;
    color: #fff;
    transition: 0.5s ease;
}

.project-card:hover .project-img i {
    transform: scale(1.1);
}

.project-info {
    padding: 2.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-info h4 {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.project-info p {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    line-height: 1.7;
    flex-grow: 1;
    opacity: 0.9;
}

.project-link {
    font-size: 1.6rem;
    color: var(--main-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    transition: 0.3s;
}

.project-card:hover .project-link {
    transform: translateX(5px);
    color: var(--main-color-hover);
}

/* Experience Section */
.experience {
    background: var(--second-bg-color);
}

.timeline-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 6rem;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline-column {
    flex: 1 1 45rem;
}

.timeline-column .title {
    font-size: 2.8rem;
    margin-bottom: 4rem;
    color: var(--text-color);
    font-weight: 700;
    display: inline-block;
    border-bottom: 3px solid var(--main-color);
    padding-bottom: 0.5rem;
}

.timeline-box {
    border-left: 3px solid var(--main-color);
    position: relative;
    padding-left: 3.5rem;
    margin-bottom: 3.5rem;
}

.timeline-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -1.2rem;
    width: 2.1rem;
    height: 2.1rem;
    background: var(--bg-color);
    border: 3px solid var(--main-color);
    border-radius: 50%;
    transition: 0.3s ease;
}

.timeline-box:hover::before {
    background: var(--main-color);
    box-shadow: 0 0 10px var(--main-color);
}

.timeline-content {
    padding: 3rem;
    position: relative;
}

.timeline-date {
    font-size: 1.4rem;
    color: var(--main-color);
    margin-bottom: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    background: var(--glass-bg);
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
}

.timeline-content h3 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.timeline-content .subtitle {
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.timeline-content ul {
    list-style: none;
}

.timeline-content ul li {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: flex-start;
    line-height: 1.6;
}

.timeline-content ul li::before {
    content: '\eb7b';
    font-family: boxicons;
    color: var(--main-color);
    margin-right: 1.2rem;
    font-size: 1.8rem;
    margin-top: 0.2rem;
}

.timeline-content p {
    font-size: 1.5rem;
    line-height: 1.7;
}

/* Contact Section */
.contact {
    background: var(--bg-color);
}

.contact-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    flex: 1 1 35rem;
    padding: 4rem;
}

.contact-info h3 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.contact-info > p {
    font-size: 1.6rem;
    margin-bottom: 4rem;
    line-height: 1.6;
    opacity: 0.9;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    transition: 0.3s ease;
}

.info-item:hover {
    transform: translateX(10px);
}

.info-item i {
    font-size: 2.8rem;
    color: #fff;
    background: var(--main-color);
    padding: 1.5rem;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.info-item p, .info-item a {
    font-size: 1.6rem;
    color: var(--text-color);
    font-weight: 500;
}

.info-item a:hover {
    color: var(--main-color);
    text-decoration: underline;
}

.contact-form {
    flex: 1 1 50rem;
    padding: 4rem;
}

.contact-form .input-box {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-form .input-box input,
.contact-form textarea {
    width: 100%;
    padding: 1.8rem;
    font-size: 1.6rem;
    color: var(--text-color);
    background: var(--bg-color);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    transition: 0.3s;
}

.contact-form .input-box input:focus,
.contact-form textarea:focus {
    border-color: var(--main-color);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

.contact-form .input-box input {
    width: calc(50% - 0.75rem);
}

.contact-form textarea {
    resize: none;
    margin-bottom: 2rem;
}

.contact-form .btn {
    width: auto;
    padding: 1.5rem 4rem;
}

/* Footer */
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 3rem 9%;
    background: var(--bg-color);
    border-top: 1px solid var(--glass-border);
}

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

.footer-iconTop a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    background: var(--main-color);
    border-radius: 1rem;
    transition: .5s ease;
}

.footer-iconTop a:hover {
    box-shadow: 0 0 1.5rem var(--main-color);
    transform: translateY(-5px);
}

.footer-iconTop a i {
    font-size: 2.6rem;
    color: #fff;
}

/* Breakpoints */
@media (max-width: 1200px) {
    html { font-size: 55%; }
    .home-img .img-box {
        width: 40vw;
        height: 40vw;
    }
}

@media (max-width: 991px) {
    .header { padding: 2rem 5%; }
    section { padding: 10rem 5% 2rem; }
    .footer { padding: 3rem 5%; }
    .home { flex-direction: column; text-align: center; }
    .home-content h1 { font-size: 5rem; }
    .home-content p { display: inline-block; }
    .social-media { justify-content: center; }
    .btn-box { justify-content: center; }
    .home-img .img-box {
        width: 50vw;
        height: 50vw;
        margin-top: 4rem;
    }
    .about { flex-direction: column-reverse; text-align: center; }
    .about-content h2 { text-align: center; }
    .about-img .img-box {
        width: 50vw;
        height: 50vw;
        margin-top: 4rem;
        transform: none;
    }
    .education-card { text-align: left; }
}

@media (max-width: 768px) {
    #menu-icon { display: block; }
    .navbar {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem 3%;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: .1rem solid var(--glass-border);
        box-shadow: 0 .5rem 1rem rgba(0, 0, 0, 0.1);
        display: none;
        transition: 0.3s ease;
    }
    .navbar.active { display: block; }
    .navbar a {
        display: block;
        font-size: 2rem;
        margin: 3rem 0;
        text-align: center;
        margin-left: 0;
    }
    .contact-form .input-box input { width: 100%; }
}

@media (max-width: 450px) {
    html { font-size: 50%; }
    .home-content h1 { font-size: 4rem; }
    .home-img .img-box { width: 70vw; height: 70vw; }
    .about-img .img-box { width: 70vw; height: 70vw; }
}