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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

nav {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 5px;
    transition: background 0.3s;
}

nav a:hover {
    background: rgba(255,255,255,0.2);
}

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

.hero h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    opacity: 0.9;
}

/* About Section */
.about {
    padding: 60px 20px;
    background: #f8f9fa;
}

.about h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #667eea;
}

/* Projects Section */
.projects {
    padding: 60px 20px;
}

.projects h2 {
    font-size: 36px;
    margin-bottom: 40px;
    color: #667eea;
}

.project-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.project-card h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #764ba2;
}

.project-card p {
    font-size: 16px;
    margin-bottom: 20px;
    color: #666;
}

.project-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.project-links a:not(.btn) {
    color: #667eea;
    text-decoration: none;
    padding: 12px 24px;
    border: 2px solid #667eea;
    border-radius: 5px;
    transition: all 0.3s;
}

.project-links a:not(.btn):hover {
    background: #667eea;
    color: white;
}

/* Footer */
footer {
    background: #2d3748;
    color: white;
    padding: 30px 20px;
    text-align: center;
}

footer p {
    margin: 5px 0;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 32px;
    }

    .hero p {
        font-size: 18px;
    }

    nav {
        flex-direction: column;
        gap: 10px;
    }
}