/* ── shared page shell ──────────────────────────────────────────────────── */

.blog-index-root,
.blog-post-root {
  min-height: 60vh;
  padding: 32px 16px 64px;
  box-sizing: border-box;
}

.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--site-text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin: 0 auto 18px;
  max-width: 720px;
  transition: color 0.15s;
}

.blog-back:hover { color: var(--site-link); }

/* ── index: heading + grid ──────────────────────────────────────────────── */

.blog-index-header {
  max-width: 960px;
  margin: 0 auto 28px;
  text-align: center;
}

.blog-index-heading {
  font-family: "Noto Serif", serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--site-text);
  margin: 0 0 10px;
}

.blog-index-tagline {
  font-size: 16px;
  line-height: 1.6;
  color: var(--site-text-muted);
  max-width: 620px;
  margin: 0 auto;
}

.blog-grid {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}

.blog-grid-card {
  background: var(--site-surface-strong);
  border-radius: 16px;
  box-shadow: var(--site-shadow);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s, transform 0.15s;
}

.blog-grid-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 56px rgba(96, 63, 138, 0.18);
}

.blog-grid-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: var(--site-outline);
}

.blog-grid-info {
  padding: 14px 16px 16px;
}

.blog-grid-date {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--site-accent);
  margin: 0 0 6px;
}

.blog-grid-title {
  font-family: "Noto Serif", serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--site-text);
  line-height: 1.35;
  margin: 0;
}

.blog-empty {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
  font-size: 16px;
  color: var(--site-text-muted);
  padding: 40px 0;
}

/* ── detail card ─────────────────────────────────────────────────────────── */

.blog-post {
  max-width: 720px;
  margin: 0 auto;
  background: var(--site-surface-strong);
  border-radius: 18px;
  box-shadow: var(--site-shadow);
  overflow: hidden;
}

.blog-post-image-wrap {
  width: 100%;
  aspect-ratio: 1200 / 630;
  background: var(--site-outline);
  overflow: hidden;
}

.blog-post-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.blog-post-content {
  padding: 32px 36px 40px;
}

.blog-post-meta {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--site-accent);
  margin: 0 0 10px;
}

.blog-post-title {
  font-family: "Noto Serif", serif;
  font-size: 30px;
  font-weight: 700;
  color: var(--site-text);
  line-height: 1.25;
  margin: 0 0 22px;
}

.blog-post-body {
  font-size: 16px;
  line-height: 1.78;
  color: var(--site-text);
}

.blog-post-body h2 {
  font-family: "Noto Serif", serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--site-text);
  margin: 32px 0 14px;
}

.blog-post-body h3 {
  font-family: "Noto Serif", serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--site-text);
  margin: 26px 0 12px;
}

.blog-post-body p { margin: 0 0 18px; }

.blog-post-body ul,
.blog-post-body ol {
  margin: 0 0 18px;
  padding-left: 26px;
}

.blog-post-body li { margin-bottom: 8px; }

.blog-post-body a {
  color: var(--site-link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.blog-post-body a:hover { color: var(--site-link-hover); }

.blog-post-body strong { font-weight: 700; }
.blog-post-body em { font-style: italic; }

.blog-post-body hr {
  border: none;
  border-top: 1px solid var(--site-outline);
  margin: 32px 0;
}

/* ── responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 480px) {
  .blog-post-content  { padding: 22px 20px 28px; }
  .blog-post-title    { font-size: 24px; }
  .blog-post-body     { font-size: 15px; }
  .blog-grid          { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .blog-index-heading { font-size: 26px; }
}