/* ===== Blog Listing Page ===== */

.bl-main {
  max-width: 72rem; margin: 0 auto;
  padding: 4.75rem 1.5rem 4rem;
}

.bd-main {
  max-width: 72rem; margin: 0 auto;
  padding: 6.25rem 1.5rem 4rem;
}

/* Hero */
.bl-hero {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
}
.bl-hero h1 {
  font-size: 1.75rem; font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.25;
  margin-bottom: 0.5rem;
}
@media (min-width: 640px) { .bl-hero h1 { font-size: 2.25rem; } }
.bl-hero-sub {
  color: var(--muted-fg); font-size: 0.9375rem;
  max-width: 34rem; margin: 0 auto; line-height: 1.6;
}

/* Controls */
.bl-controls {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 0; margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.bl-filter { display: flex; align-items: center; gap: 0.5rem; }
.bl-filter-label { font-size: 0.75rem; color: var(--muted-fg); font-weight: 500; }
.bl-category-select {
  height: 2.125rem; padding: 0 2rem 0 0.625rem;
  border: 1px solid var(--border); border-radius: 0.5rem;
  background: var(--card); font-size: 0.8125rem; color: var(--fg);
  outline: none; cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.625rem center;
}
.bl-category-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px hsla(174, 55%, 40%, 0.12);
}
.bl-view-toggle { display: flex; gap: 0.25rem; }
.bl-view-btn {
  width: 2.125rem; height: 2.125rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 0.5rem; color: var(--muted-fg);
  transition: all 0.15s;
}
.bl-view-btn:hover { color: var(--fg); background: var(--muted); }
.bl-view-btn.active { color: var(--primary); background: var(--secondary); }

/* ===== Grid View ===== */
.bl-stream {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.25rem;
}
@media (min-width: 640px) { .bl-stream.grid-view { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .bl-stream.grid-view { grid-template-columns: repeat(3, 1fr); } }

.bl-stream.grid-view { }

/* Card (grid) */
.bl-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: all 0.2s; display: flex; flex-direction: column;
}
.bl-card:hover {
  border-color: hsla(174, 55%, 40%, 0.3);
  box-shadow: 0 4px 16px -4px hsla(174, 40%, 80%, 0.3);
  transform: translateY(-2px);
}
.bl-card-img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  background: var(--muted);
}
.bl-card-body { padding: 1rem 1.125rem 1.25rem; flex: 1; display: flex; flex-direction: column; }
.bl-card-cat {
  font-size: 0.6875rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.04em; color: var(--primary); margin-bottom: 0.375rem;
}
.bl-card-title {
  font-size: 0.9375rem; font-weight: 600; line-height: 1.35;
  margin-bottom: 0.375rem; color: var(--fg);
}
.bl-card-excerpt {
  font-size: 0.8125rem; color: var(--muted-fg); line-height: 1.55;
  margin-bottom: 0.75rem; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.bl-card-meta {
  display: flex; align-items: center; justify-content: space-between;
}
.bl-card-time { font-size: 0.6875rem; color: var(--muted-fg); }
.bl-card-link {
  font-size: 0.75rem; font-weight: 500; color: var(--primary);
  transition: opacity 0.15s;
}
.bl-card-link:hover { opacity: 0.75; }

/* ===== List View ===== */
.bl-stream.list-view { grid-template-columns: 1fr; }

.bl-stream.list-view .bl-card {
  flex-direction: row;
}
.bl-stream.list-view .bl-card-img {
  width: 14rem; min-width: 14rem; aspect-ratio: auto;
  height: 100%; min-height: 9rem;
}
.bl-stream.list-view .bl-card-body {
  padding: 1.125rem 1.25rem;
}
.bl-stream.list-view .bl-card-excerpt {
  -webkit-line-clamp: 2;
}

@media (max-width: 639px) {
  .bl-stream.list-view .bl-card { flex-direction: column; }
  .bl-stream.list-view .bl-card-img {
    width: 100%; min-width: unset; aspect-ratio: 16/9; height: auto;
  }
}

/* ===== Ad Card ===== */
.bl-ad-card {
  grid-column: 1 / -1;
  background: var(--card); border: 1px dashed var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  text-align: center; position: relative;
}
.bl-ad-label {
  position: absolute; top: 0.5rem; left: 0.75rem;
  font-size: 0.625rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--muted-fg); opacity: 0.7;
}
.bl-ad-placeholder {
  font-size: 0.8125rem; color: var(--muted-fg);
  padding: 1.5rem 0;
}

/* ===== Skeleton ===== */
.bl-loading {
  display: grid; gap: 1.25rem; margin-top: 1.25rem;
  grid-template-columns: repeat(1, 1fr);
}
@media (min-width: 640px) { .bl-loading { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .bl-loading { grid-template-columns: repeat(3, 1fr); } }

.bl-skeleton-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.bl-skel-img {
  width: 100%; aspect-ratio: 16/9; background: var(--muted);
  animation: blPulse 1.5s ease-in-out infinite;
}
.bl-skel-line {
  height: 0.75rem; margin: 0.75rem 1rem; border-radius: 0.25rem;
  background: var(--muted);
  animation: blPulse 1.5s ease-in-out infinite;
}
.bl-skel-line.w90 { width: 90%; }
.bl-skel-line.w60 { width: 60%; }
.bl-skel-line.w40 { width: 40%; }
@keyframes blPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* End */
.bl-end {
  text-align: center; padding: 2rem 0; color: var(--muted-fg);
  font-size: 0.8125rem;
}

/* ===== Back to Top ===== */
.bl-back-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 40;
  width: 2.75rem; height: 2.75rem;
  background: var(--primary); color: var(--primary-fg);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: all 0.25s;
  opacity: 0; transform: translateY(8px);
}
.bl-back-top:not(.hidden) {
  opacity: 1; transform: translateY(0);
}
.bl-back-top:hover { opacity: 0.9; transform: translateY(-2px); }