/* Global Styles */
* {
    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;
    background-color: #f4f4f4;
}

/* Navigation Styles */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-logo:hover {
    color: #764ba2;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #667eea;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

/* Main Content Styles */
main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 20px;
}

section {
    background: white;
    margin-bottom: 2rem;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

section h2 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.8rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

section p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* List Styles */
ul {
    list-style: none;
    padding-left: 0;
}

section ul li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    border-radius: 4px;
    transition: transform 0.2s ease;
}

section ul li:hover {
    transform: translateX(5px);
    background: #e9ecef;
}

/* Footer Styles */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

footer p {
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .nav-logo {
        font-size: 1.2rem;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    section {
        padding: 1.5rem;
    }
    
    section h2 {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .nav-menu {
        gap: 0.5rem;
        font-size: 0.8rem;
    }
    
    .nav-logo {
        font-size: 1rem;
    }
}