.mainpage-header {
    padding: 60px 0 40px;
    text-align: center;
}
.mainpage-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 800;
    color: #2c4a7a;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.mainpage-subtitle {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
    color: #4a5568;
}