body {
    font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

.system-area {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.system-header {
    width: 100%;
    height: 4rem;
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    line-height: 2.5rem;
    color: white;
    background-color: #818cf8;
    padding: 1.25rem 1rem 0 1rem;
}

.system-content {
    width: 100%;
    flex-grow: 1;
    background-color: #f3f4f6;
    overflow-y: auto;
}