/* Light/Dark mode variables  */
@import url('https://fonts.googleapis.com/css2?family=Alan+Sans:wght@300..900&family=Electrolize&family=SUSE+Mono:ital,wght@0,100..800;1,100..800&display=swap');

:root {
    --bg-color: #111;
    --text-color: #fff;
    --card-bg: #222;
    --shadow-color: rgba(255, 255, 255, 0.13);
    --transition: all 0.5s ease;
    --sans-font: 'Alan Sans', sans-serif;
    --code-font: 'SUSE mono', monospace;
    --box-font: 'Electrolize', sans-serif;
}

body {
    font-family: var(--code-font);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
}

[data-theme="dark"] {
    --bg-color: #fff;
    --text-color: #111;
    --card-bg: #eee;
    --shadow-color: rgba(0, 0, 0, 0.07);
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    /* box-sizing: border-box;
    */
    scroll-behavior: smooth;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--bg-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-family: var(--sans-font);
    font-size: 2.5rem;
    font-weight: bold;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}

.logo a {
    text-decoration: none;
    color: var(--text-color);
}

.logo img {
    height: 20px;
    width: 20px;
    border-radius: 50%;
}

.nav-toggle {
    display: none;
    cursor: pointer;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--sans-font);
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.nav-links a:hover {
    opacity: 0.7;
}

.theme-toggle {
    cursor: pointer;
    transition: var(--transition);
}

/* Sections */
.section {
    padding: 5rem 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

#contact {
    min-height: 50vh;
}

.section-title {
    font-family: var(--sans-font);
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--text-color);
}

/* Cards */
.project-card,
.competitive-card,
.skill-category,
.hackathon-card,
.research-card,
.activity-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-card h3,
.competitive-card h3,
.hackathon-card h3,
.research-card h3,
.activity-card h3,
.skill-category h3 {
    font-family: var(--sans-font);
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.project-card:hover,
.skill-category:hover,
.competitive-card:hover,
.hackathon-card:hover,
.research-card:hover,
.activity-card:hover {
    transform: scale(1.05);
}

/* Grid Layouts */
.projects-grid,
.competitive-grid,
.hackathon-grid,
.research-grid,
.activities-grid,
.skills-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-item {
    position: relative;
    padding: 2rem;
    border-left: 2px solid var(--text-color);
    margin-left: 20px;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -11px;
    top: 0;
    width: 20px;
    height: 20px;
    background-color: var(--text-color);
    border-radius: 50%;
}

/* Contact Section */
.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 2rem;

}

.social-links a {
    color: var(--text-color);
    transition: var(--transition);
}

.social-links a:hover {
    opacity: 0.7;
    transform: translateY(-3px);
    animation: pulse 2s infinite;
}

.resume {
    border: 2px solid var(--text-color);
    padding: 0.5rem 1rem;
    margin: 2rem auto;
    max-width: 210px;
    border-radius: 0.5rem;
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 800;
    transition: var(--transition);
    background-color: var(--text-color);
    color: var(--bg-color);
}

.resume:hover {
    background-color: var(--bg-color);
    color: var(--text-color);
}

.contact-text {
    text-align: center;
    margin: 2rem;
    font-size: 1.25rem;
}

.contact-text a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 800;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--text-color);
    color: var(--bg-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: none;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.back-to-top:hover {
    transform: translateY(-3px);
}

.back-to-top.show {
    display: flex;
    animation: fadeIn 0.5s ease;
}

a {
    font-weight: 700;
    color: var(--text-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    /* text-align: justify; */
    align-items: center;
}

.highlight {
    background-color: var(--text-color);
    color: var(--bg-color);
    font-weight: 600;
    padding: 1px 2px;
}

.profile-image img {
    width: 100%;
    max-width: 300px;
    /* border-radius: 50%; */
    border: var(--text-color) 2px solid;
    padding: 4px;
    box-shadow: 30px -30px var(--shadow-color),
        20px -20px var(--shadow-color),
        10px -10px var(--shadow-color),
        -10px 10px var(--shadow-color),
        -20px 20px var(--shadow-color),
        -30px 30px var(--shadow-color);
}

/* Skills Section */
.skill-category {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.project-links a {
    display: inline-block;
    margin-right: 1rem;
    color: var(--text-color);
    text-decoration: none;
    border: 1px solid var(--text-color);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    transition: var(--transition);
}

.project-links a:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

.skill-item {
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
    font-weight: 600;
}

.skill-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.skill-item i {
    margin-right: 0.5rem;
}

/* Competitive Programming Section Styling */
.competitive-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.competitive-header h3 {
    margin: 0;
}

.competitive-icon {
    font-size: 1.5rem;
    color: var(--text-color);
}

.competitive-card p i {
    margin-right: 0.5rem;
}

/* Animation for icons */
.skill-item:hover i,
.timeline-item i,
.hackathon-card i,
.activity-card i,
.project-card i,
.research-card i,
.competitive-card i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.25);
    }

    100% {
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 1023px) {
    .nav-links {
        gap: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 1023px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-color);
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }

    .nav-links.show {
        display: flex;
        padding: 1rem 0;
        animation: fadeIn 0.5s ease;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .profile-image img {
        margin: 2rem auto;
        max-width: 150px;
        border: var(--text-color) 1px solid;
        padding: 2px;
        box-shadow: 15px -15px var(--shadow-color),
            10px -10px var(--shadow-color),
            5px -5px var(--shadow-color),
            -5px 5px var(--shadow-color),
            -10px 10px var(--shadow-color),
            -15px 15px var(--shadow-color);
    }
}

@media (max-width: 767px) {
    .section {
        padding: 5rem 0 3rem 0;
    }
}

@media (max-width: 359px) {
    .container {
        width: 95%;
        padding: 0 10px;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .social-links {
        gap: 1rem;
    }
}