:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #333;
    --bg-color: #ffffff;
    --bg-light: #f3f4f6;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

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

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-light) 0%, #e0e7ff 100%);
    padding-top: 70px;
}

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

.hero h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: #555;
}

.location {
    margin-bottom: 2rem;
    color: #666;
}

.cta-buttons .btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    margin: 0 0.5rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn.primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn.primary:hover {
    background: var(--secondary-color);
}

.btn.secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn.secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 10px auto 0;
}

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

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

.skill-category {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags span {
    background: var(--bg-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

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

.timeline-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
    border-left: 5px solid var(--primary-color);
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 500;
}

.timeline-content ul {
    list-style-position: inside;
    margin-left: 1rem;
}

.timeline-content li {
    margin-bottom: 0.5rem;
}

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

.project-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid #eee;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.project-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Education */
.education-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.education-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.education-content p {
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.footer h2 {
    margin-bottom: 1rem;
}

.social-links {
    margin: 2rem 0;
}

.social-icon {
    color: var(--white);
    font-size: 1.2rem;
    margin: 0 1rem;
    text-decoration: none;
    transition: var(--transition);
}

.social-icon:hover {
    color: var(--primary-color);
}

.copyright {
    color: #888;
    font-size: 0.9rem;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0px;
        height: 92vh;
        top: 70px;
        background-color: var(--white);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    }
    
    .nav-links li {
        margin: 2rem 0;
        opacity: 0;
    }
    
    .burger {
        display: block;
    }

    .nav-active {
        transform: translateX(0%);
    }

    @keyframes navLinkFade {
        from {
            opacity: 0;
            transform: translateX(50px);
        }
        to {
            opacity: 1;
            transform: translateX(0px);
        }
    }

    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.2rem;
    }

    .container {
        padding: 0 1.5rem;
    }
}

.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.toggle .line2 {
    opacity: 0;
}

.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}