/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base theme (light) */
:root {
    --background: #ffffff;
    --text: #1e1e1e;
    --text-secondary: #495057;
    --nav-background: rgba(255, 255, 255, 0.98);
    --card-background: #f8f9fa;
    --card-hover: #f1f3f4;
    --button-hover: #333333;
    --timeline-background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --hero-background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --link-color: #0061fe;
    --link-hover: #0052d9;
    --nav-shadow: rgba(0, 0, 0, 0.1);
    color-scheme: light;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #121212;
        --text: #ffffff;
        --text-secondary: #a0a0a0;
        --nav-background: rgba(18, 18, 18, 0.98);
        --card-background: #1e1e1e;
        --card-hover: #2d2d2d;
        --button-hover: #c9c9c9;
        --timeline-background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
        --hero-background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
        --link-color: #60a5fa;
        --link-hover: #93c5fd;
        --nav-shadow: rgba(0, 0, 0, 0.3);
        color-scheme: dark;
    }
}

/* Font faces */
@font-face {
    font-family: "Sharp Grotesk";
    src: url("./assets/fonts/SharpGrotesk-Book20.otf") format("opentype");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Sharp Grotesk";
    src: url("./assets/fonts/SharpGrotesk-Medium20.otf") format("opentype");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Sharp Grotesk";
    src: url("./assets/fonts/SharpGrotesk-SemiBold20.otf") format("opentype");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* Base styles */
body {
    font-family: "Sharp Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-background) !important;
    padding: 1rem;
    box-shadow: 0 2px 4px var(--nav-shadow);
    z-index: 1000;
    transition: background 0.3s, box-shadow 0.3s;
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--link-color);
}

/* Hero section */
.hero {
    padding: 8rem 2rem 4rem;
    background: var(--hero-background);
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Main content */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Projects grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.2s, background-color 0.2s;
}

.project-card:hover {
    background: var(--card-hover);
    transform: translateY(-4px);
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.project-card p {
    color: var(--text-secondary);
}

.project-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--link-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.project-link:hover {
    color: var(--link-hover);
}

/* Experience timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    padding: 2rem;
    background: var(--timeline-background);
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px var(--nav-shadow);
    transition: transform 0.2s;
}

.timeline-item:hover {
    transform: translateX(4px);
}

.timeline-date {
    color: var(--link-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-item h3 {
    color: var(--text);
    margin-bottom: 0.5rem;
}

.timeline-item p {
    color: var(--text-secondary);
}

/* Contact section */
.contact {
    background: var(--card-background);
    padding: 4rem 1rem; /* Reduced side padding */
    text-align: center;
}

.contact p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem; /* Reduced gap for mobile */
    margin: 2rem auto;
    padding: 0 1rem;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    max-width: 100%;
}

.social-link {
    color: var(--background);
    background: var(--text);
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    white-space: nowrap; /* Prevent text wrapping within buttons */
    margin: 0.5rem; /* Add margin around each button */
}

.social-link:hover {
    background: var(--button-hover);
}

.horizontal-separator {
    width: 100%;
    border-bottom: 1px solid var(--text-secondary);
}

/* Responsive design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .project-card {
        margin-bottom: 1.5rem;
    }

    .timeline-item {
        padding: 1.5rem;
    }

    .social-links {
        gap: 0.5rem; /* Further reduce gap on mobile */
    }

    .social-link {
        padding: 0.75rem 1rem; /* Slightly reduce padding on mobile */
    }
}