/* ===== Blog page ===== */
.blog-hero {
  background: linear-gradient(180deg, var(--orange-100) 0%, var(--orange-50) 60%, var(--white) 100%);
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--orange-100);
}

.blog-hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-600);
  background: var(--white);
  border: 1px solid var(--orange-200);
  border-left: 3px solid var(--orange-500);
  padding: 0.375rem 0.875rem;
  margin-bottom: 0.875rem;
}

.blog-hero-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.blog-hero-desc {
  font-size: 0.9375rem;
  color: var(--gray-500);
}

.blog-section {
  padding: 3rem 0 4rem;
}

/* ===== Post list ===== */
.post-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--orange-100);
}

.post-item {
  border-bottom: 1px solid var(--orange-100);
}

.post-toggle {
  all: unset;
  display: grid;
  grid-template-columns: minmax(90px, max-content) 1fr auto;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
  padding: 1.25rem 0;
  cursor: pointer;
  box-sizing: border-box;
}

.post-toggle:hover .post-title {
  color: var(--orange-600);
}

.post-date {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--orange-600);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.post-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  transition: color 0.15s;
}

.post-arrow {
  font-size: 0.75rem;
  color: var(--gray-500);
  transition: transform 0.2s;
  flex-shrink: 0;
}

details[open] .post-arrow {
  transform: rotate(90deg);
}

.post-body {
  padding: 0 0 1.5rem;
  max-width: 680px;
}

.blog-empty {
  padding: 2rem 0;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.post-loading {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* ===== Markdown content ===== */
.post-md h2 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--gray-900);
  margin: 1.25rem 0 0.5rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--orange-400);
}

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

.post-md li {
  font-size: 0.9375rem;
  color: var(--gray-700);
  line-height: 1.8;
}

.post-md p {
  font-size: 0.9375rem;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.post-md p:last-child {
  margin-bottom: 0;
}

/* ===== Tag filter ===== */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.tag-btn {
  all: unset;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.875rem;
  border: 1px solid var(--orange-200);
  color: var(--gray-500);
  background: var(--white);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.tag-btn:hover {
  border-color: var(--orange-400);
  color: var(--orange-600);
}

.tag-btn[aria-pressed="true"] {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--white);
}

/* ===== Post tags (inside card) ===== */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: 0.625rem;
}

.post-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--orange-700);
  background: var(--orange-50);
  border: 1px solid var(--orange-200);
  padding: 0.1rem 0.5rem;
}

.post-item[hidden] {
  display: none;
}

@media (max-width: 600px) {
  .post-toggle {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }

  .post-date {
    grid-column: 1;
    grid-row: 1;
    font-size: 0.75rem;
  }

  .post-arrow {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
  }

  .post-title {
    grid-column: 1;
    grid-row: 2;
    font-size: 0.9375rem;
  }
}