@media (max-width: 1100px) {
    .layout-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        order: 2;
    }

    .content-area {
        order: 1;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        text-align: center;
    }

    .site-title {
        font-size: 2.8rem;
    }

    .calendar-wrapper,
    .two-col {
        grid-template-columns: 1fr;
    }

    .site-logo {
        width: 90px;
        height: 90px;
    }
}