body {
    font-family: Consolas, 'Noto Serif JP', serif;
    background-image: url('/static/hilbertbackground.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

a {
    color: #e83e2d;
}

.main-section {
    width: 70%;
    margin: 0 auto;
    background-color: rgb(255, 255, 255);
    padding: 0;
    overflow: hidden;
}

.content {
    padding: 1.5rem;
    overflow: hidden;
    min-width: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.content * {
    max-width: 100%;
    box-sizing: border-box;
}

.content img {
    height: auto;
}

h2 {
    font-weight: 700;
}

@media (max-width: 768px) {
    .main-section {
        width: 90%;
    }
}

.sidebar {
    background-color: #e83e2d;
    border-right: 1px solid #dee2e6;
    align-self: stretch;
    padding: 1.5rem 1rem;
    flex-shrink: 0;
}

.sidebar a {
    color: white;
    text-decoration: none;
    border: 1px solid white;
    padding: 0.3rem 0.6rem;
}

@media (max-width: 768px) {
    .sidebar {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
        border-right: none;
        border-bottom: 1px solid #dee2e6;
    }

    .sidebar a {
        padding: 0.2rem 0.3rem;
    }
}