:root {
    --primary-color: #1c2833;
    --secondary-color: #2c3e50;
    --accent-color: #3498db;
    --bg-light: #f8f9fa;
    --text-main: #333333;
    --text-muted: #666666;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Lato', sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
}

h1, h2, h3, .logo {
    font-family: 'Playfair Display', serif;
}

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

/* Header & Nav */
.header {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

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

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

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 6rem 0;
    background-color: #ffffff;
}

.hero-container {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.hero-image {
    flex: 1;
    max-width: 400px;
}

.hero-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.hero-content {
    flex: 2;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2rem;
}

.divider {
    height: 4px;
    width: 60px;
    background-color: var(--accent-color);
    margin-bottom: 2rem;
}

.bio {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.social-links {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

.social-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.social-btn:hover {
    background-color: var(--accent-color);
}

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

.social-btn.outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* Sections Common */
.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    text-align: center;
}

/* Experience */
.experience {
    padding: 6rem 0;
}

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

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    height: 100%;
    width: 2px;
    background-color: #e0e0e0;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 60px;
}

.timeline-dot {
    position: absolute;
    left: 12px;
    top: 5px;
    width: 18px;
    height: 18px;
    background-color: var(--accent-color);
    border-radius: 50%;
    border: 4px solid var(--bg-light);
}

.timeline-content {
    background: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.timeline-content h3 {
    font-size: 1.4rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.timeline-date {
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* Education */
.education {
    padding: 6rem 0;
    background-color: #ffffff;
}

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

.edu-card {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 8px;
    text-align: center;
    border-top: 4px solid var(--accent-color);
}

.edu-card h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.edu-card .institution {
    color: var(--text-muted);
    font-weight: 700;
}

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

.footer a {
    color: #ffffff;
    text-decoration: underline;
    opacity: 0.8;
}

.footer a:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
    }
    
    .nav-links {
        display: none;
    }
}