pre {
    white-space: pre-wrap;
    /* Since CSS 2.1 */
    white-space: -moz-pre-wrap;
    /* Mozilla, since 1999 */
    white-space: -pre-wrap;
    /* Opera 4-6 */
    white-space: -o-pre-wrap;
    /* Opera 7 */
    word-break: keep-all;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #121212;
    z-index: 100;
    padding: 1rem;
    font-family: "Pretendard", sans-serif;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.lang-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: 1px solid #ffb74d;
    color: #ffb74d;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-family: "Pretendard", sans-serif;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.lang-toggle:hover {
    background: #ffb74d;
    color: #121212;
}

body {
    font-family: "Pretendard", sans-serif;
    background-color: #121212;
    /* nice neutral blackish */
    color: #e0e0e0;
    /* light gray for text */
}

ul {
    line-height: 1.2;
}

main {
    padding-top: 70px;
}

header a {
    text-decoration: none;
}

a {
    color: #ffb74d;
    /* warm amber */
    text-decoration: none;
}

a:hover {
    color: #ffe082;
    /* lighter golden */
    text-decoration: none;
}

.window {
    display: flex;
    flex-direction: column;
    font-family: "Pretendard", sans-serif;
    max-width: 31rem;
    font-size: 1rem;
    margin: auto;
    padding: 0rem 1.5rem;
}

.japanese {
    writing-mode: vertical-rl;
}

.centered {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 70px;
    height: 60vh;
}

.centered_col {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 90vh;
}

.foldable button {
    background: none;
    border: none;
    font-weight: bold;
    color: #e0e0e0;
    cursor: pointer;
}

.content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.content.open {
    max-height: 500px;
    /* large enough to fit content */
}

.gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.gallery img {
    width: 100%;
    max-width: 700px;
    height: auto;
    margin-bottom: 2rem;
    border: 1px solid #eee;
    border-radius: 4px;
    transition: opacity 0.3s ease;
}

.caption {
    display: flex;
    justify-content: center;
}

img.portrait {
    padding-top: 70px;
    width: 500px;
    max-width: 100%;
    /* so it doesn't explode outside tiny screens */
}

.hidden {
    display: none;
}


/* Mobile responsive adjustments */

@media (max-width: 600px) {
    header {
        flex-direction: column;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
    }
    .lang-toggle {
        position: static;
        align-self: center;
    }
    main {
        padding-top: 120px;
    }
    .centered {
        padding-top: 120px;
    }
}