/* ============================================================
   LEAF v3 — Post / Article Page Styles
   ============================================================ */

/* ========================
   Post Section
   ======================== */
.post-section {
  padding: var(--sp-xl) 0 var(--sp-2xl);
  background: var(--c-bg);
}

.post-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ========================
   Post Header
   ======================== */
.post-header {
  padding-bottom: 48px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 64px;
}

.post-tag-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.post-date {
  font-family: var(--f-sans);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-text-mute);
}

.post-title {
  font-family: var(--f-serif);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 400;
  color: var(--c-white);
  line-height: 1.2;
}

/* ========================
   Post Body
   ======================== */
.post-body {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.post-lead {
  font-family: var(--f-serif);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 400;
  line-height: 1.9;
  color: var(--c-text);
  font-style: italic;
  padding-left: 24px;
  border-left: 2px solid var(--c-accent);
}

/* ========================
   Post Images
   ======================== */
.post-img-grid {
  display: grid;
  gap: 8px;
}

.post-img-grid.cols-1 {
  grid-template-columns: 1fr;
}

.post-img-grid.cols-2 {
  grid-template-columns: 1fr 1fr;
}

.post-img-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.post-img-grid img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
  transition: transform 0.8s var(--ease-out);
}

.post-img-grid.cols-1 img {
  aspect-ratio: 16/9;
}

.post-img-grid img:hover {
  transform: scale(1.02);
}

/* ========================
   Post Text
   ======================== */
.post-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.post-text h3 {
  font-family: var(--f-serif);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 400;
  color: var(--c-white);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}

.post-text p {
  font-size: 15px;
  line-height: 2.2;
  color: var(--c-text-dim);
}

/* ========================
   Post Navigation
   ======================== */
.post-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-top: 48px;
  border-top: 1px solid var(--c-border);
  margin-top: 16px;
}

.post-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-text-mute);
  transition: color var(--t-fast), gap var(--t-base);
}

.post-nav-link:hover {
  color: var(--c-white);
  gap: 18px;
}

/* ========================
   Breadcrumb
   ======================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
  flex-wrap: wrap;
}

.breadcrumb a,
.breadcrumb span {
  font-family: var(--f-sans);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--c-text-mute);
  transition: color var(--t-fast);
}

.breadcrumb a:hover {
  color: var(--c-white);
}

.breadcrumb .sep {
  color: var(--c-text-mute);
  opacity: 0.4;
}

/* ========================
   Responsive
   ======================== */
@media (max-width: 1024px) {
  .post-inner {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .post-section {
    padding: var(--sp-md) 0 var(--sp-xl);
  }

  .post-header {
    padding-bottom: 32px;
    margin-bottom: 40px;
  }

  .post-title {
    font-size: clamp(24px, 8vw, 36px);
  }

  .post-lead {
    font-size: clamp(15px, 4vw, 18px);
    padding-left: 16px;
  }

  .post-text p {
    font-size: 14px;
  }

  .post-img-grid.cols-2,
  .post-img-grid.cols-3 {
    grid-template-columns: 1fr;
  }

  .post-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .post-body {
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .post-tag-row {
    flex-wrap: wrap;
    gap: 10px;
  }

  .post-img-grid {
    gap: 6px;
  }

  .post-text h3 {
    font-size: clamp(18px, 6vw, 24px);
  }
}