/* ============================================================
   BLOG.CSS — Blog listing page & individual post pages
   ============================================================ */

/* ── BLOG LISTING ── */

/* Top actions bar */
.blog-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.blog-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
}

/* Blog grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.post-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.post-card:hover {
  border-color: var(--border2);
  background: rgba(0,212,255,0.03);
  transform: translateY(-5px);
  box-shadow: var(--glow);
}

.post-card__top {
  padding: 2rem 2rem 0;
}

.post-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.post-card__date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--muted2);
}

.post-card__cat {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.3);
  padding: 0.18rem 0.55rem;
  border-radius: 2px;
}

.post-card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--white);
  margin-bottom: 0.8rem;
}

.post-card__excerpt {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.75;
}

.post-card__footer {
  padding: 1.2rem 2rem 1.8rem;
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  margin-top: 1.5rem;
}

.post-card__read {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

.post-card__time {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  color: var(--muted2);
}

/* Dynamic badge */
.post-card--dynamic .post-card__cat {
  background: var(--cyan-dim);
}

/* No posts state */
.blog-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 5rem 2rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.blog-empty__icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.blog-empty__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.blog-empty__desc {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── ADD POST DRAWER ── */
.post-drawer {
  display: none;
  flex-direction: column;
  gap: 1.2rem;
  padding: 2.5rem;
  border: 1px solid rgba(0,212,255,0.18);
  border-radius: var(--radius);
  background: rgba(0,212,255,0.02);
  margin-bottom: 3rem;
  animation: slideDown 0.35s ease;
}

.post-drawer.open { display: flex; }

.post-drawer__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.post-drawer__actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 0.5rem;
}

/* ── INDIVIDUAL POST PAGE ── */
.post-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 5% 8rem;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 5rem;
  align-items: start;
  position: relative;
  z-index: 1;
}

.post-main {}

.post-header {
  padding: calc(var(--nav-h) + 4rem) 0 4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4rem;
}

.post-header__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2.5rem;
  transition: color var(--transition);
}

.post-header__back:hover { color: var(--cyan); }

.post-header__meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.post-header__cat {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.3);
  padding: 0.25rem 0.7rem;
  border-radius: 2px;
}

.post-header__date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  color: var(--muted2);
  letter-spacing: 0.08em;
}

.post-header__readtime {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  color: var(--muted2);
  letter-spacing: 0.08em;
}

.post-header__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.post-header__excerpt {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.85;
  font-style: italic;
  font-family: 'Cormorant Garamond', serif;
}

/* Post body typography */
.post-body {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--muted);
}

.post-body h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--white);
  margin: 3rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.post-body h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--white);
  margin: 2rem 0 0.8rem;
}

.post-body p {
  margin-bottom: 1.5rem;
}

.post-body strong {
  color: var(--white);
  font-weight: 400;
}

.post-body em {
  font-style: italic;
  color: var(--white-dim);
}

.post-body a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(0,212,255,0.3);
  transition: border-color var(--transition);
}

.post-body a:hover { border-color: var(--cyan); }

.post-body ul,
.post-body ol {
  margin: 1rem 0 1.5rem 0;
  padding-left: 1.5rem;
}

.post-body li {
  margin-bottom: 0.5rem;
  color: var(--muted);
}

.post-body blockquote {
  margin: 2.5rem 0;
  padding: 1.5rem 2rem;
  border-left: 3px solid var(--cyan);
  background: rgba(0,212,255,0.04);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.2rem;
  font-style: italic;
  color: var(--white-dim);
}

.post-body code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85em;
  background: rgba(0,212,255,0.06);
  color: var(--cyan);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
  border: 1px solid var(--border);
}

.post-body pre {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  overflow-x: auto;
  margin: 2rem 0;
}

.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.7;
}

.post-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* Post sidebar */
.post-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
  padding-top: calc(var(--nav-h) + 4rem);
}

.post-sidebar__section {
  margin-bottom: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
}

.post-sidebar__label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.post-sidebar__author-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 0.2rem;
}

.post-sidebar__author-role {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
}

.post-sidebar__toc {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.post-sidebar__toc a {
  font-size: 0.82rem;
  color: var(--muted);
  transition: color var(--transition);
  display: block;
  padding-left: 0.8rem;
  border-left: 1px solid var(--border);
  line-height: 1.5;
}

.post-sidebar__toc a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* Post nav (prev/next) */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.post-nav__item {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  text-decoration: none;
}

.post-nav__item:hover {
  border-color: var(--border2);
  background: rgba(0,212,255,0.03);
}

.post-nav__dir {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted2);
  margin-bottom: 0.5rem;
}

.post-nav__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--white);
  line-height: 1.3;
}

.post-nav__item--next { text-align: right; }

/* ── ANIMATIONS ── */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-15px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { display: none; }
  .post-header { padding-top: calc(var(--nav-h) + 2.5rem); }
}

@media (max-width: 600px) {
  .blog-grid { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .blog-toolbar { flex-direction: column; align-items: flex-start; }
}