/* MVC画面の共通操作・配信コンテンツを補う。 */
html {
    scroll-behavior: smooth;
}

@media (max-width: 700px) {
    .clsSiteHeader nav.clsIsOpen {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
}

.clsSkipLink {
    position: fixed;
    inset: 8px auto auto 8px;
    transform: translateY(-150%);
    z-index: 100;
    padding: 12px;
    background: var(--paper);
}

.clsSkipLink:focus {
    transform: none;
}

.clsNotice {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--paper);
    border-radius: 12px;
    max-width: calc(100% - 32px);
    z-index: 100;
}

.clsNotice:not(:empty) {
    padding: 16px 24px;
}

.clsEmpty {
    color: var(--muted);
    padding: 24px 0;
}

.clsArticleLinks {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.clsArticle {
    max-width: 900px;
}

.clsProse {
    line-height: 1.9;
    overflow-wrap: anywhere;
    margin: 32px 0;
}

.clsProse img {
    max-width: 100%;
    height: auto;
}

.clsProse table,
.clsProse pre {
    display: block;
    overflow-x: auto;
}

.clsFormGrid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.clsImageList {
    display: grid;
    gap: 12px;
    margin: 20px 0;
}

.clsRowActions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

input,
textarea,
select {
    max-width: 100%;
}

.clsLoginCard label {
    display: block;
    margin: 0;
}

.clsLoginCard input {
    width: 100%;
}

.clsLoginCard .clsButton {
    width: 100%;
}

#idTimeline {
    max-height: 520px;
    overflow-y: auto;
    min-width: 0;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}