.blog-list {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--sp-spacing-xxl) var(--sp-spacing-lg);
  padding-top: calc(var(--sp-header-height) + var(--sp-spacing-xl));
}

.posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-spacing-xl);
  margin-top: var(--sp-spacing-xxl);
}

.blog-grid {
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

.blog-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-spacing-md);
  margin-bottom: var(--sp-spacing-xl);
  padding: var(--sp-spacing-md);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--sp-color-border);
  border-radius: var(--sp-radius-md);
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-spacing-sm);
  flex: 1;
}

.blog-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-space-2);
  padding: var(--sp-space-2) var(--sp-space-4);
  font-size: var(--sp-font-size-sm);
  font-weight: 500;
  color: var(--sp-color-text-secondary);
  background: transparent;
  border: 1px solid var(--sp-color-border);
  border-radius: var(--sp-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.blog-filter-btn:hover {
  border-color: var(--sp-color-text-muted);
  color: var(--sp-color-text-primary);
}

.blog-filter-btn.active {
  background: rgba(var(--sp-color-primary-rgb), 0.15);
  border-color: var(--sp-color-primary);
  color: var(--sp-color-primary);
}

.blog-filter-btn svg {
  width: 14px;
  height: 14px;
}

.blog-filter-btn[data-filter="announcement"].active {
  background: rgba(59, 130, 246, 0.15);
  border-color: #60a5fa;
  color: #60a5fa;
}

.blog-filter-btn[data-filter="blog"].active {
  background: rgba(var(--sp-color-primary-rgb), 0.15);
  border-color: var(--sp-color-primary);
  color: var(--sp-color-primary);
}

.blog-filter-btn[data-filter="guide"].active {
  background: rgba(59, 130, 246, 0.15);
  border-color: #60a5fa;
  color: #60a5fa;
}

.blog-sort {
  display: flex;
  align-items: center;
  gap: var(--sp-spacing-sm);
}

.blog-sort-label {
  font-size: var(--sp-font-size-sm);
  color: var(--sp-color-text-muted);
}

.blog-sort-select {
  padding: var(--sp-space-2) var(--sp-space-8) var(--sp-space-2) var(--sp-space-3);
  font-size: var(--sp-font-size-sm);
  color: var(--sp-color-text-primary);
  background: var(--sp-color-surface);
  border: 1px solid var(--sp-color-border);
  border-radius: var(--sp-radius-sm);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 16px;
}

.blog-sort-select:hover {
  border-color: var(--sp-color-text-muted);
}

.blog-sort-select:focus {
  outline: none;
  border-color: var(--sp-color-primary);
}

.blog-grid[data-filter="announcement"] a:not([data-category="announcement"]),
.blog-grid[data-filter="blog"] a:not([data-category="blog"]),
.blog-grid[data-filter="guide"] a:not([data-category="guide"]) {
  display: none;
}

@media (max-width: 768px) {
  .blog-controls {
    flex-direction: column;
  }

  .blog-sort {
    width: 100%;
  }

  .blog-sort-select {
    flex: 1;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }
}