/* ─── BLOG HERO ──────────────────────────────────────────────── */
.blog-hero {
  padding: calc(var(--nav-h) + 80px) 60px 80px;
  border-bottom: 1px solid var(--c2);
}
.blog-hero-label {
  font-size: 10px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 16px;
  display: flex; align-items: center; gap: 16px;
}
.blog-hero-label::before { content: '04'; font-size: 10px; color: var(--c3); }
.blog-hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 400;
  line-height: 1; letter-spacing: -0.01em; margin-bottom: 24px;
}
.blog-hero-sub { font-size: 14px; color: var(--muted); max-width: 480px; line-height: 1.8; }

/* ─── SETUP NOTE ─────────────────────────────────────────────── */
.setup-note {
  margin: 0 60px;
  padding: 20px 24px;
  background: var(--c1);
  border: 1px solid var(--c2);
  border-left: 3px solid var(--white);
  font-size: 12px; color: var(--muted); line-height: 1.85;
}
.setup-note strong { color: var(--off-white); }
.setup-note code {
  background: var(--c3); padding: 1px 6px;
  font-family: var(--font-mono); font-size: 11px; color: var(--white);
}

/* ─── BLOG LAYOUT ────────────────────────────────────────────── */
.blog-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 0;
  max-width: 1300px;
  margin: 0 auto;
  padding: 60px 60px 120px;
}
.blog-main { border-right: 1px solid var(--c2); padding-right: 60px; }
.blog-sidebar { padding-left: 48px; padding-top: 4px; }

/* ─── POST LIST ──────────────────────────────────────────────── */
.post-list { display: flex; flex-direction: column; }
.post-item {
  padding: 40px 0;
  border-bottom: 1px solid var(--c2);
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.post-item.visible { opacity: 1; transform: translateY(0); }
.post-item:first-child { padding-top: 0; }

.post-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.post-date { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); }
.post-tag {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 10px; border: 1px solid var(--c3); color: var(--c4);
}
.post-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 400; line-height: 1.15; margin-bottom: 12px;
  transition: color 0.2s;
}
.post-item:hover .post-title { color: var(--muted); }
.post-excerpt { font-size: 14px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; max-width: 600px; }
.post-read {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--c4); text-decoration: none;
  border-bottom: 1px solid var(--c3); padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.post-item:hover .post-read { color: var(--white); border-color: var(--white); }

/* ─── EMPTY STATE ────────────────────────────────────────────── */
.empty-state { padding: 80px 0; }
.empty-state-glyph { font-family: var(--font-display); font-size: 48px; color: var(--c3); margin-bottom: 20px; }
.empty-state h3 { font-family: var(--font-display); font-size: 22px; font-weight: 400; margin-bottom: 12px; }
.empty-state p { font-size: 13px; color: var(--muted); line-height: 1.8; max-width: 480px; }

/* ─── SIDEBAR ────────────────────────────────────────────────── */
.sidebar-section { margin-bottom: 48px; }
.sidebar-title {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 20px;
  padding-bottom: 12px; border-bottom: 1px solid var(--c2);
}
.sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sidebar-tag {
  font-size: 11px; letter-spacing: 0.08em;
  padding: 5px 12px; border: 1px solid var(--c3);
  color: var(--muted); cursor: pointer; transition: all 0.2s;
}
.sidebar-tag:hover,
.sidebar-tag.active { border-color: var(--white); color: var(--white); }
.sidebar-about { font-size: 13px; color: var(--muted); line-height: 1.8; }
.sidebar-about a {
  color: var(--white); text-decoration: none;
  border-bottom: 1px solid var(--c3); transition: border-color 0.2s;
}
.sidebar-about a:hover { border-color: var(--white); }

/* ─── SINGLE POST VIEW ───────────────────────────────────────── */
#post-view { display: none; }
#post-view.active { display: block; }
#list-view.hidden  { display: none; }

.post-full {
  max-width: 1300px;
  margin: 0 auto;
  padding: 60px 60px 120px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 80px;
}
.post-full-back {
  font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--muted); text-decoration: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 40px; transition: color 0.2s;
}
.post-full-back:hover { color: var(--white); }
.post-full-date { font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.post-full-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 400; line-height: 1.05;
  letter-spacing: -0.01em; margin-bottom: 40px;
}
.post-full-content {
  font-size: 15px; color: var(--off-white); line-height: 1.9;
  border-top: 1px solid var(--c2); padding-top: 40px;
}
.post-full-content h2 { font-family: var(--font-display); font-size: 26px; font-weight: 400; margin: 40px 0 16px; color: var(--white); }
.post-full-content h3 { font-family: var(--font-display); font-size: 20px; font-weight: 400; margin: 32px 0 12px; color: var(--white); }
.post-full-content p  { margin-bottom: 20px; }
.post-full-content code { font-family: var(--font-mono); font-size: 13px; background: var(--c2); padding: 2px 7px; color: var(--off-white); }
.post-full-content pre { background: var(--c1); border: 1px solid var(--c2); padding: 24px; margin: 24px 0; overflow-x: auto; }
.post-full-content pre code { background: none; padding: 0; font-size: 13px; }
.post-full-content ul, .post-full-content ol { padding-left: 24px; margin-bottom: 20px; }
.post-full-content li  { margin-bottom: 8px; color: var(--off-white); }
.post-full-content blockquote { border-left: 3px solid var(--c3); padding-left: 24px; margin: 24px 0; color: var(--muted); font-style: italic; }
.post-full-content a   { color: var(--white); border-bottom: 1px solid var(--c3); text-decoration: none; }
.post-full-content a:hover { border-color: var(--white); }

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .blog-hero  { padding: calc(var(--nav-h) + 48px) 28px 56px; }
  .setup-note { margin: 0 28px; }
  .blog-layout { grid-template-columns: 1fr; padding: 40px 28px 80px; }
  .blog-main  { border-right: none; padding-right: 0; }
  .blog-sidebar { padding-left: 0; padding-top: 40px; border-top: 1px solid var(--c2); }
  .post-full  { grid-template-columns: 1fr; padding: 40px 28px 80px; gap: 40px; }
}