/* ============================================================
   post.css — 블로그 포스트 전용 스타일
   ============================================================ */

/* ── Post Layout ── */
.post-wrapper {
  padding-top: 68px;
  min-height: 100vh;
  background: var(--c-bg);
}

/* ── Post Hero / Header ── */
.post-hero {
  position: relative;
  background: var(--c-bg-2);
  border-bottom: 1px solid var(--c-border);
  padding: var(--sp-2xl) 0 var(--sp-xl);
  overflow: hidden;
}
.post-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 20%, transparent 100%);
  pointer-events: none;
}
.post-hero-glow {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(245,200,66,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.post-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.post-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--c-text-3);
}
.post-breadcrumb a {
  color: var(--c-text-3);
  transition: color var(--t-fast);
}
.post-breadcrumb a:hover { color: var(--c-gold); }
.post-breadcrumb i { font-size: 0.65rem; }

.post-cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gold);
  background: rgba(245,200,66,0.08);
  border: 1px solid rgba(245,200,66,0.22);
  width: fit-content;
}

.post-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: var(--fw-black);
  color: var(--c-white);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.post-excerpt {
  font-size: 1.05rem;
  color: var(--c-text-2);
  line-height: 1.75;
  max-width: 620px;
}

.post-meta-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  flex-wrap: wrap;
  padding-top: var(--sp-md);
  border-top: 1px solid var(--c-border);
}
.post-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--c-text-3);
}
.post-meta-item i { color: var(--c-gold-dim); font-size: 0.75rem; }
.post-meta-item strong { color: var(--c-text-2); font-weight: var(--fw-mid); }


/* ── Post Body Layout ── */
.post-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--sp-2xl) var(--sp-lg);
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: var(--sp-xl);
  align-items: start;
}


/* ── Article Content ── */
.post-content {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-xl) clamp(var(--sp-xl), 5%, 3rem);
}

.post-content h2 {
  font-size: 1.55rem;
  font-weight: var(--fw-bold);
  color: var(--c-white);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-border);
  letter-spacing: -0.02em;
}
.post-content h2:first-child { margin-top: 0; }

.post-content h3 {
  font-size: 1.2rem;
  font-weight: var(--fw-semi);
  color: var(--c-white);
  margin: 2rem 0 0.75rem;
}
.post-content h4 {
  font-size: 1rem;
  font-weight: var(--fw-semi);
  color: var(--c-gold);
  margin: 1.5rem 0 0.5rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.post-content p {
  font-size: 0.97rem;
  color: var(--c-text-2);
  line-height: 1.85;
  margin-bottom: 1.2rem;
}
.post-content p:last-child { margin-bottom: 0; }

/* Lists */
.post-content ul,
.post-content ol {
  margin: 0 0 1.4rem 0;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
}
.post-content li {
  font-size: 0.96rem;
  color: var(--c-text-2);
  padding-left: 1.6rem;
  position: relative;
  line-height: 1.7;
}
.post-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-gold);
}
.post-content ol {
  counter-reset: ol-counter;
}
.post-content ol li {
  counter-increment: ol-counter;
}
.post-content ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 0.78rem;
  font-weight: var(--fw-bold);
  color: var(--c-gold);
}

/* Blockquote */
.post-content blockquote {
  margin: 1.8rem 0;
  padding: var(--sp-lg) var(--sp-xl);
  background: rgba(245,200,66,0.04);
  border-left: 3px solid var(--c-gold);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.post-content blockquote p {
  color: var(--c-text);
  font-size: 1.02rem;
  font-style: italic;
  margin: 0;
  line-height: 1.75;
}

/* Strong / Em */
.post-content strong { color: var(--c-white); font-weight: var(--fw-semi); }
.post-content em { color: var(--c-gold); font-style: normal; }

/* Highlight box */
.post-highlight {
  display: flex;
  gap: var(--sp-md);
  padding: var(--sp-lg) var(--sp-xl);
  background: var(--c-bg-3);
  border: 1px solid var(--c-border-h);
  border-radius: var(--r-md);
  margin: 2rem 0;
}
.post-highlight-icon {
  flex-shrink: 0;
  font-size: 1.3rem;
  color: var(--c-gold);
  margin-top: 2px;
}
.post-highlight-text {
  font-size: 0.92rem;
  color: var(--c-text-2);
  line-height: 1.75;
}
.post-highlight-text strong { color: var(--c-gold); }

/* Source / reference */
.post-source {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--c-border);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--c-text-3);
  margin-top: var(--sp-md);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.post-source:hover { border-color: var(--c-gold-dim); color: var(--c-gold); }

/* Tags */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--sp-xl);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--c-border);
}
.post-tag {
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: var(--fw-mid);
  color: var(--c-text-3);
  background: var(--c-bg-3);
  border: 1px solid var(--c-border);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.post-tag:hover { border-color: var(--c-gold-dim); color: var(--c-gold); }


/* ── Sidebar ── */
.post-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--sp-lg);
  position: sticky;
  top: 88px;
}

.sidebar-block {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-lg);
}
.sidebar-title {
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--sp-md);
}

/* TOC */
.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.toc-list li a {
  display: block;
  font-size: 0.82rem;
  color: var(--c-text-3);
  padding: 6px 10px;
  border-radius: var(--r-sm);
  border-left: 2px solid transparent;
  transition: all var(--t-fast);
  line-height: 1.5;
}
.toc-list li a:hover {
  color: var(--c-gold);
  border-left-color: var(--c-gold);
  background: rgba(245,200,66,0.05);
}
.toc-list li.active a {
  color: var(--c-gold);
  border-left-color: var(--c-gold);
  background: rgba(245,200,66,0.06);
}

/* Related Posts */
.related-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.related-list li a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px;
  border-radius: var(--r-sm);
  border: 1px solid var(--c-border);
  background: var(--c-bg-3);
  transition: border-color var(--t-fast);
}
.related-list li a:hover { border-color: var(--c-border-h); }
.related-cat {
  font-size: 0.68rem;
  font-weight: var(--fw-semi);
  color: var(--c-gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.related-title {
  font-size: 0.82rem;
  color: var(--c-text-2);
  line-height: 1.45;
}
.related-list li a:hover .related-title { color: var(--c-white); }


/* ── Post Navigation ── */
.post-nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--sp-lg) var(--sp-2xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--sp-lg);
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  transition: border-color var(--t-mid), transform var(--t-mid);
}
.post-nav-link:hover {
  border-color: var(--c-border-h);
  transform: translateY(-3px);
}
.post-nav-link--next { text-align: right; }

.post-nav-dir {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: var(--fw-semi);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-3);
}
.post-nav-link--next .post-nav-dir { justify-content: flex-end; }
.post-nav-link:hover .post-nav-dir { color: var(--c-gold); }

.post-nav-title {
  font-size: 0.92rem;
  font-weight: var(--fw-semi);
  color: var(--c-text);
  line-height: 1.4;
}
.post-nav-link:hover .post-nav-title { color: var(--c-white); }


/* ── Responsive ── */
@media (max-width: 900px) {
  .post-layout {
    grid-template-columns: 1fr;
  }
  .post-sidebar {
    position: static;
    order: -1;
  }
}

@media (max-width: 600px) {
  .post-hero-inner { padding: 0 var(--sp-md); }
  .post-layout { padding: var(--sp-xl) var(--sp-md); gap: var(--sp-lg); }
  .post-content { padding: var(--sp-lg) var(--sp-md); }
  .post-content h2 { font-size: 1.3rem; }
  .post-nav { grid-template-columns: 1fr; padding: 0 var(--sp-md) var(--sp-xl); }
  .post-meta-bar { gap: var(--sp-md); }
}