@media (max-width: 1100px) {
    .stats-grid,
    .dashboard-grid,
    .week-grid,
    .stats-grid--compact,
    .documents-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        width: 220px;
    }
}

@media (max-width: 800px) {
    .app-shell {
        display: block;
        min-height: 100vh;
    }

    .sidebar {
        display: none;
    }

    .main-content {
        padding: 16px 16px 98px;
        min-height: 100vh;
    }

    .lesson-item {
        flex-direction: column;
    }

    .lesson-item__time {
        min-width: auto;
    }

    .page-head,
    .lesson-item__top,
    .document-card__top,
    .calendar-item__head {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-head {
        margin-bottom: 18px;
    }

    h1 {
        font-size: 34px;
        line-height: 1.1;
        margin-bottom: 10px;
    }

    h2 {
        font-size: 24px;
    }

    .panel-card,
    .stat-card,
    .document-card,
    .calendar-item,
    .lesson-item,
    .simple-list__item {
        border-radius: 18px;
    }

    .stats-grid {
        gap: 14px;
        margin-bottom: 18px;
    }

    .dashboard-grid,
    .week-grid,
    .documents-grid {
        gap: 14px;
    }

    .actions-row {
        gap: 10px;
    }

    .btn {
        min-height: 46px;
    }

    .table-wrap {
        margin: 0 -4px;
    }

    .fc .fc-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .fc .fc-toolbar-title {
        font-size: 1.2rem;
    }

    .fc .fc-toolbar-chunk {
        display: flex;
        justify-content: center;
    }
}