/* ==========================================================================
   投稿詳細ページ
   ========================================================================== */
.post-detail { padding: 0 0 100px; }

.post-back-link {
  display: inline-block;
  margin: 130px 0 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.post-back-link:hover { color: var(--magenta); }

.post-detail-layout {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: start;
}

.post-media-main {
  border-radius: 6px 24px 6px 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 12px;
}
.post-media-main img { width: 100%; }

.post-media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.post-media-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 4px 14px 4px 14px;
  border: 1px solid var(--border);
}

.post-media-placeholder {
  aspect-ratio: 4 / 3;
  border-radius: 6px 24px 6px 24px;
  border: 1px dashed var(--border);
  background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 56px;
}

.post-title { font-size: clamp(24px, 3.4vw, 34px); line-height: 1.5; margin-bottom: 16px; }

.post-meta-row { display: flex; flex-wrap: wrap; gap: 16px; font-size: 12.5px; color: var(--text-faint); margin-bottom: 20px; }

.post-author-sns { display: flex; gap: 8px; margin: -8px 0 20px; }
.post-author-sns-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  transition: transform .2s ease, border-color .2s ease, color .2s ease, background .2s ease;
}
.post-author-sns-link:hover { transform: translateY(-2px); border-color: var(--violet); color: var(--violet); background: var(--grad-soft); }

.post-actions { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }

.like-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.like-button .like-icon { transition: transform .2s ease; }
.like-button:hover { border-color: var(--magenta); color: var(--magenta); }
.like-button.is-liked { background: var(--grad); color: #fff; border-color: transparent; }
.like-button.is-liked .like-icon { transform: scale(1.15); }

.post-share { display: flex; gap: 8px; }
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
}
.share-btn:hover { border-color: var(--violet); color: var(--violet); }

.post-body { font-size: 14.5px; color: var(--text); line-height: 1.9; margin-bottom: 12px; }
.post-body p { margin: 0 0 1em; }

@media (max-width: 900px) {
  .post-detail-layout { grid-template-columns: 1fr; }
}