body {
    background-color: #f8fafc;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.header-box {
    background: linear-gradient(135deg, #0ea5e9, #3b82f6);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    text-align: center;
}

.section-title {
    color: #1d4ed8;
    margin-top: 2rem;
    font-weight: 700;
    border-bottom: 3px solid #1d4ed8;
    padding-bottom: 0.5rem;
}

.app-box {
    border-left: 5px solid #3b82f6;
    padding-left: 1rem;
    margin-top: 1.5rem;
}

.app-box h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 0.75rem;
}

.content-section {
    background-color: white;
    padding: 5px;
    border-radius: 0.75rem;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
    margin-bottom: 2rem;
    line-height: 1.75;
}

blockquote {
    font-style: italic;
    color: #4b5563;
    border-left: 4px solid #93c5fd;
    padding-left: 1rem;
    margin: 1.5rem 0;
    background-color: #f1f5f9;
    border-radius: 0.5rem;
}