.guide-list {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--sp-space-12) var(--sp-space-6);
  padding-top: calc(var(--sp-header-height) + var(--sp-space-8));
}

.posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-space-8);
  margin-top: var(--sp-space-12);
}


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



.guide-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-space-4);
  margin-bottom: var(--sp-space-8);
  padding: var(--sp-space-4);
  background: oklch(1.00 0 0 / 0.02);
  border: 1px solid var(--sp-color-border);
  border-radius: var(--sp-corners-md);
}

.guide-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-space-2);
  flex: 1;
}

.guide-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: var(--sp-text-sm);
  font-weight: var(--sp-font-medium);
  color: var(--sp-color-text-secondary);
  background: transparent;
  border: 1px solid var(--sp-color-border);
  border-radius: var(--sp-radius-sm);
  cursor: pointer;
  transition: border-color var(--sp-duration-normal) var(--sp-ease-default), color var(--sp-duration-normal) var(--sp-ease-default), background-color var(--sp-duration-normal) var(--sp-ease-default);
}

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

.guide-filter-btn.active {
  background: color-mix(in oklch, var(--sp-color-primary) 15%, transparent);
  border-color: var(--sp-color-primary);
  color: var(--sp-color-primary);
}

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


.guide-filter-btn[data-filter="announcement"].active {
  background: oklch(0.62 0.18 260 / 0.15);
  border-color: var(--sp-color-accent-blue);
  color: var(--sp-color-accent-blue);
}

.guide-filter-btn[data-filter="blog"].active {
  background: color-mix(in oklch, var(--sp-color-primary) 15%, transparent);
  border-color: var(--sp-color-primary);
  color: var(--sp-color-primary);
}

.guide-filter-btn[data-filter="guide"].active {
  background: oklch(0.68 0.18 300 / 0.15);
  border-color: var(--sp-color-accent-purple);
  color: var(--sp-color-accent-purple);
}


.guide-sort {
  display: flex;
  align-items: center;
  gap: var(--sp-space-2);
}

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

.guide-sort-select {
  padding: 8px 32px 8px 12px;
  font-size: var(--sp-text-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;
}

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

.guide-sort-select:focus-visible {
  outline: 2px solid var(--sp-color-primary);
  outline-offset: 2px;
  border-color: var(--sp-color-primary);
}


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


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

  .guide-sort {
    width: 100%;
  }

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

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

  .site-nav {
    gap: var(--sp-space-4);
  }

  .logo-link .site-name {
    font-size: var(--sp-text-lg);
  }

  .logo-link .logo {
    height: 24px;
  }

  .chat-cta {
    font-size: var(--sp-text-xs);
    padding: var(--sp-space-1) var(--sp-space-2);
  }

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

  .related-posts-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .guide-filter-btn {
    transition: none;
  }
}