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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
#hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8rem 0 6rem;
    text-align: center;
}

#hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.8s ease-out;
}

#hero h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease-out;
}

#hero .tagline {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.8;
    opacity: 0.9;
    animation: fadeInUp 1.2s ease-out;
}

#hero .location {
    font-size: 1.1rem;
    opacity: 0.9;
    animation: fadeInUp 1.4s ease-out;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: #2d3748;
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: #667eea;
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* About Section */
#about {
    background: #f7fafc;
}

#about p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    text-align: center;
    color: #4a5568;
    line-height: 1.8;
}

/* Expertise Section */
#expertise {
    background: white;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-card {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: #667eea;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.skill-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.skill-card p {
    color: #4a5568;
    font-size: 1.05rem;
}

/* Contact Section */
#contact {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

#contact h2 {
    color: white;
}

#contact h2::after {
    background: white;
}

.contact-info {
    text-align: center;
    margin-top: 2rem;
}

.contact-info p {
    margin: 1.5rem 0;
    font-size: 1.3rem;
}

.contact-link {
    color: white;
    text-decoration: none;
    padding: 1rem 2rem;
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: #2d3748;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

footer p {
    opacity: 0.8;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    #hero h1 {
        font-size: 2.5rem;
    }
    
    #hero h2 {
        font-size: 1.4rem;
    }
    
    #hero .tagline {
        font-size: 1rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    section h2 {
        font-size: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}