.page-header {
    text-align: center;
    padding: 4rem 0 2rem;
    color: white;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

.content-section {
    background: white;
    margin: 2rem auto;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 900px;
}

.content-section h2 {
    color: #667eea;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.8rem;
    border-left: 4px solid #667eea;
    padding-left: 1rem;
}

.content-section h2:first-child {
    margin-top: 0;
}

.content-section h3 {
    color: #764ba2;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
}

.content-section p {
    margin-bottom: 1rem;
    color: #555;
    text-align: justify;
}

.content-section ul {
    margin: 1rem 0 1rem 2rem;
    color: #555;
}

.content-section li {
    margin-bottom: 0.5rem;
}

.highlight-box {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-left: 4px solid #667eea;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 5px;
}

.date-updated {
    text-align: center;
    color: #999;
    font-style: italic;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .content-section {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
}