body:has(header) {
    overflow-y: scroll;
}

.app-header {
    font-family: Roboto, Helvetica, Arial, sans-serif;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #1a1a1a;
    color: #fff;
    padding: 1rem;
    box-shadow: 0 8px 8px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 1rem;

    .app-header-top {
        display: flex;
        align-items: flex-start;
        gap: 1rem;
    }
}

.app-main {
    font-family: Roboto, Helvetica, Arial, sans-serif;
    margin-top: 130px;
    padding: 1rem;
}

.app-error {
    padding: 2rem;
    text-align: center;
    color: #d32f2f;
    background-color: #ffebee;
    border-radius: 4px;
    margin: 1rem 0;
}