/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Navigation */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: #3498db;
}

/* Main Content */
.main-content {
    margin-top: 70px;
    min-height: calc(100vh - 140px);
}

/* Hero Section */
.hero {
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    opacity: 0.8;
    line-height: 1.7;
}

.headshot {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255,255,255,0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Sections */
section {
    padding: 60px 20px;
}

.about,
.education {
    max-width: 1200px;
    margin: 0 auto;
}

.about {
    background: white;
}

.education {
    background: #f8f9fa;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    color: #2c3e50;
}

.about-text,
.education-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.education-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.education-item:last-child {
    margin-bottom: 0;
}

.education-item h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.institution {
    font-size: 1.2rem;
    color: #3498db;
    font-weight: 600;
    margin-bottom: 5px;
}

.year {
    color: #666;
    margin-bottom: 15px;
}

.description {
    color: #555;
    line-height: 1.6;
}

/* Projects Page */
.projects-header {
    text-align: center;
    padding: 60px 20px 40px;
    background: white;
}

.projects-header h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.projects-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.projects-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.project-card h3 {
    padding: 20px 20px 10px;
    font-size: 1.3rem;
    color: #2c3e50;
}

.project-card p {
    padding: 0 20px 20px;
    color: #666;
    line-height: 1.6;
}

.project-tech {
    padding: 0 20px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    background: #e3f2fd;
    color: #1976d2;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .headshot {
        width: 200px;
        height: 200px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-logo {
        font-size: 1.3rem;
    }
}