/* GitMind Chat のアップデート記事と一覧だけで使う部品。色と角丸は site.css の変数に合わせる */
.gup-list-title { margin: 0 0 20px; font-size: clamp(24px, 3vw, 32px); line-height: 1.4; }
.gup-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.gup-list a { display: flex; flex-direction: column; height: 100%; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; color: var(--ink); text-decoration: none; transition: box-shadow .2s, transform .2s; }
.gup-list a:hover { box-shadow: 0 8px 24px rgba(14, 21, 34, .12); transform: translateY(-2px); }
.gup-list img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; background: var(--tint); border-bottom: 1px solid var(--line); }
.gup-list div { padding: 16px 18px 18px; }
.gup-list time { color: var(--muted); font-size: 13px; }
.gup-list h2 { margin: 2px 0 6px; font-size: 18px; line-height: 1.45; color: var(--accent); }
.gup-list p { margin: 0; font-size: 15px; line-height: 1.75; }
@media (min-width: 640px) { .gup-list { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .gup-list { grid-template-columns: repeat(3, 1fr); } }
.gup-list-note { margin: 24px 0 0; font-size: 15px; }

.gup-article .wrap { max-width: 800px; }
.gup-date { margin: 0 0 4px; color: var(--muted); font-size: 14px; }
.gup-date time { margin-right: 8px; font-weight: 700; color: var(--accent); }
.gup-article h1 { margin: 0 0 12px; font-size: clamp(26px, 3.4vw, 34px); line-height: 1.4; }
.gup-lead { margin: 0 0 28px; font-size: 17px; line-height: 1.85; }
.gup-article h2 { margin: 40px 0 10px; padding-left: 12px; border-left: 4px solid var(--accent); font-size: 22px; line-height: 1.45; }
.gup-article h3 { margin: 24px 0 8px; font-size: 17px; line-height: 1.5; }
.gup-article p { line-height: 1.85; }
.gup-article figure { margin: 12px 0 20px; }
.gup-article figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.gup-article figcaption { margin-top: 6px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.gup-models { display: grid; gap: 12px; margin: 12px 0 16px; padding: 0; }
.gup-models div { padding: 14px 16px; background: var(--tint); border-radius: var(--radius); }
.gup-models dt { font-weight: 700; }
.gup-models dd { margin: 2px 0 0; font-size: 15px; }
@media (min-width: 640px) { .gup-models { grid-template-columns: 1fr 1fr; } }
/* 手書きの図から修正までの流れ。画像のあいだを指示の吹き出しでつなぐ */
.gup-flow { list-style: none; margin: 16px 0 8px; padding: 0; counter-reset: gup-flow; }
.gup-flow > li { position: relative; padding-bottom: 28px; counter-increment: gup-flow; }
.gup-flow > li:last-child { padding-bottom: 0; }
.gup-flow > li::before { content: counter(gup-flow); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 16px; font-weight: 700; line-height: 32px; text-align: center; }
.gup-flow h3 { margin: 0 0 8px; padding-left: 42px; line-height: 32px; }
.gup-flow p { margin: 0 0 10px; }
.gup-flow img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--radius); }
.gup-flow__say { width: fit-content; max-width: 88%; margin: 16px 0 0 auto !important; padding: 10px 16px; background: var(--tint); border-radius: 14px 14px 2px 14px; font-size: 15px; line-height: 1.75; }
.gup-flow__say span { display: block; color: var(--muted); font-size: 12px; font-weight: 700; line-height: 1.6; }
.gup-flow-note { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.gup-flow__say span.gup-flow__at { width: fit-content; margin-bottom: 4px; color: var(--accent); font-size: 13px; }
.gup-flow__reply { margin-top: 10px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 14px 14px 14px 2px; font-size: 15px; line-height: 1.75; }
.gup-flow__reply p { margin: 0; }
.gup-flow__reply p + p { margin-top: 6px; }
.gup-figure-narrow { max-width: 520px; margin-left: auto; margin-right: auto; }
@media (min-width: 640px) {
  .gup-flow > li { padding-left: 48px; padding-bottom: 36px; }
  .gup-flow > li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 40px; bottom: 8px; width: 2px; background: var(--line); }
  .gup-flow h3 { padding-left: 0; }
}
.gup-note { padding: 12px 16px; background: var(--tint); border-radius: var(--radius); font-size: 15px; }
.gup-pager { display: grid; gap: 12px; margin: 48px 0 16px; padding-top: 24px; border-top: 1px solid var(--line); }
.gup-pager a { display: block; padding: 12px 16px; border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); text-decoration: none; font-size: 15px; font-weight: 700; line-height: 1.5; }
.gup-pager a:hover { border-color: var(--accent); color: var(--accent); }
.gup-pager span { display: block; color: var(--muted); font-size: 13px; font-weight: 400; }
.gup-pager__older { grid-column: 2; text-align: right; }
@media (min-width: 640px) { .gup-pager { grid-template-columns: 1fr 1fr; } }
@media (max-width: 639px) { .gup-pager__older { grid-column: 1; } }
.gup-back { margin: 0; font-size: 15px; }
/* 語の途中で改行しにくくする(対応ブラウザのみ) */
.gup-list h2, .gup-article h1 { word-break: auto-phrase; }