/**
 * Sidebar Components Styling - GPCC
 * Dark theme sidebar widgets with card-based design and accessibility
 */

/* === SIDEBAR CONTAINER === */
.gpcc-skin .gpcc-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

/* === WIDGET CARD BASE === */
.gpcc-skin .gpcc-widget {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--gap);
  overflow: hidden;
}

.gpcc-skin .gpcc-widget:hover {
  border-color: var(--primary);
  transition: border-color var(--transition-fast);
}

/* === WIDGET TITLES === */
.gpcc-skin .gpcc-widget__title {
  color: var(--text);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  margin: 0 0 var(--gap) 0;
  padding-bottom: var(--gap-xs);
  border-bottom: 1px solid var(--border);
}

/* === SEARCH WIDGET === */
.gpcc-skin .gpcc-widget--search .gpcc-form {
  display: flex;
  gap: var(--gap-xs);
  margin-bottom: var(--gap-sm);
}

.gpcc-skin .gpcc-widget--search input[type="search"] {
  flex: 1;
  height: 40px;
  padding: 0 var(--gap-sm);
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: var(--text-sm);
  transition: background-color var(--transition-fast), 
              border-color var(--transition-fast);
}

.gpcc-skin .gpcc-widget--search input[type="search"]:hover {
  background-color: var(--surface-3);
}

.gpcc-skin .gpcc-widget--search input[type="search"]:focus {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-color: var(--primary);
}

.gpcc-skin .gpcc-widget--search input[type="search"]::placeholder {
  color: var(--text-soft);
}

.gpcc-skin .gpcc-widget--search button[type="submit"] {
  height: 40px;
  padding: 0 var(--gap);
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  min-width: 80px;
}

.gpcc-skin .gpcc-widget--search button[type="submit"]:hover {
  background-color: var(--primary-hover);
}

.gpcc-skin .gpcc-widget--search button[type="submit"]:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Search suggestions */
.gpcc-skin .gpcc-search-suggestions {
  min-height: 1.2rem;
  font-size: var(--text-xs);
  color: var(--text-soft);
  line-height: var(--leading-normal);
}

/* === TABS WIDGET === */
.gpcc-skin .gpcc-widget--tabs .gpcc-tabs {
  display: flex;
  margin-bottom: var(--gap);
  background-color: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.gpcc-skin .gpcc-widget--tabs .gpcc-tabs button[role="tab"] {
  flex: 1;
  padding: var(--gap-xs) var(--gap-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast), 
              color var(--transition-fast);
}

.gpcc-skin .gpcc-widget--tabs .gpcc-tabs button[role="tab"]:hover {
  background-color: var(--surface-3);
  color: var(--text);
}

.gpcc-skin .gpcc-widget--tabs .gpcc-tabs button[role="tab"][aria-selected="true"] {
  background-color: var(--primary);
  color: white;
}

.gpcc-skin .gpcc-widget--tabs .gpcc-tabs button[role="tab"]:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.gpcc-skin .gpcc-widget--tabs [role="tabpanel"] {
  display: block;
}

.gpcc-skin .gpcc-widget--tabs [role="tabpanel"][hidden] {
  display: none;
}

/* === WIDGET LISTS === */
.gpcc-skin .gpcc-widget .gpcc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.gpcc-skin .gpcc-widget .gpcc-list li {
  margin-bottom: var(--gap-xs);
}

.gpcc-skin .gpcc-widget .gpcc-list li:last-child {
  margin-bottom: 0;
}

/* Widget list items with links */
.gpcc-skin .gpcc-widget__item {
  display: block;
}

.gpcc-skin .gpcc-widget__link {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  padding: var(--gap-xs);
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), 
              color var(--transition-fast);
  min-height: 44px; /* Touch target */
}

.gpcc-skin .gpcc-widget__link:hover {
  background-color: var(--surface-3);
  color: var(--primary);
}

.gpcc-skin .gpcc-widget__link:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Widget thumbnails */
.gpcc-skin .gpcc-widget__thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background-color: var(--surface-2);
  flex-shrink: 0;
}

/* Widget content area */
.gpcc-skin .gpcc-widget__body {
  flex: 1;
  min-width: 0; /* Prevent flex overflow */
}

.gpcc-skin .gpcc-widget__title-text {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: var(--leading-tight);
  margin: 0 0 2px 0;
  color: inherit;
  word-wrap: break-word;
}

.gpcc-skin .gpcc-widget__meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: var(--leading-normal);
  display: flex;
  align-items: center;
  gap: var(--gap-xs);
  flex-wrap: wrap;
}

.gpcc-skin .gpcc-widget__meta-item {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* Meta icons using CSS masks */
.gpcc-skin .gpcc-widget__meta-icon {
  width: 12px;
  height: 12px;
  background-color: currentColor;
  flex-shrink: 0;
}

.gpcc-skin .gpcc-widget__meta-icon--downloads {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0L8 11 5.5 8.5 4 10 8 14 12 10 10.5 8.5 8 11 8 0ZM2 14L14 14 14 16 2 16Z'/%3E%3C/svg%3E") no-repeat center;
  mask-size: contain;
}

.gpcc-skin .gpcc-widget__meta-icon--date {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 0L4 2 12 2 12 0 14 0 14 2 14 4 14 16 2 16 2 4 2 2 2 0ZM4 4L4 6 12 6 12 4ZM4 8L4 14 12 14 12 8Z'/%3E%3C/svg%3E") no-repeat center;
  mask-size: contain;
}

.gpcc-skin .gpcc-widget__meta-icon--rating {
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0L10 6 16 6 11 10 13 16 8 12 3 16 5 10 0 6 6 6Z'/%3E%3C/svg%3E") no-repeat center;
  mask-size: contain;
}

/* === TAXONOMY/TAG WIDGETS === */
.gpcc-skin .gpcc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin: 0;
  padding: 0;
  list-style: none;
}

.gpcc-skin .gpcc-tag {
  display: inline-block;
}

.gpcc-skin .gpcc-tag a {
  display: inline-block;
  padding: 4px var(--gap-xs);
  background-color: var(--surface-2);
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: background-color var(--transition-fast), 
              color var(--transition-fast), 
              border-color var(--transition-fast);
  min-height: 32px;
  line-height: 24px;
}

.gpcc-skin .gpcc-tag a:hover,
.gpcc-skin .gpcc-tag a:focus-visible {
  background-color: var(--surface-3);
  color: var(--primary);
  border-color: var(--primary);
}

.gpcc-skin .gpcc-tag a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* === BLOG WIDGET === */
.gpcc-skin .gpcc-widget--blog .gpcc-widget__link {
  /* Blog posts typically don't have thumbnails in sidebar */
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.gpcc-skin .gpcc-widget--blog .gpcc-widget__title-text {
  font-size: var(--text-sm);
  line-height: var(--leading-tight);
}

.gpcc-skin .gpcc-widget--blog .gpcc-widget__meta {
  justify-content: flex-start;
}

/* === STICKY SIDEBAR (Optional) === */
.gpcc-skin .gpcc-sidebar--sticky {
  position: sticky;
  top: 80px; /* Account for header height */
  align-self: flex-start;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

/* === LOADING STATES === */
.gpcc-skin .gpcc-widget .gpcc-list li:only-child {
  color: var(--text-soft);
  font-style: italic;
  text-align: center;
  padding: var(--gap);
}

/* Loading shimmer animation */
.gpcc-skin .gpcc-widget--loading .gpcc-widget__link {
  background: linear-gradient(
    90deg,
    var(--surface-2) 25%,
    var(--surface-3) 50%,
    var(--surface-2) 75%
  );
  background-size: 200% 100%;
  animation: gpcc-shimmer 1.5s infinite;
}

@keyframes gpcc-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* === RESPONSIVE DESIGN === */

/* Desktop */
@media (min-width: 1024px) {
  .gpcc-skin .gpcc-sidebar {
    width: 320px;
    flex-shrink: 0;
  }
  
  .gpcc-skin .gpcc-widget {
    padding: var(--gap);
  }
}

/* Tablet */
@media (max-width: 1023px) {
  .gpcc-skin .gpcc-sidebar {
    width: 100%;
    margin-top: var(--gap-lg);
  }
  
  .gpcc-skin .gpcc-widget {
    padding: var(--gap-sm);
  }
  
  .gpcc-skin .gpcc-widget--search .gpcc-form {
    flex-direction: column;
  }
  
  .gpcc-skin .gpcc-widget--search button[type="submit"] {
    width: 100%;
  }
}

/* Mobile */
@media (max-width: 767px) {
  .gpcc-skin .gpcc-sidebar {
    gap: var(--gap-sm);
  }
  
  .gpcc-skin .gpcc-widget {
    padding: var(--gap-sm);
  }
  
  .gpcc-skin .gpcc-widget__title {
    font-size: var(--text-base);
    margin-bottom: var(--gap-sm);
  }
  
  .gpcc-skin .gpcc-widget__thumb {
    width: 40px;
    height: 40px;
  }
  
  .gpcc-skin .gpcc-widget--tabs .gpcc-tabs {
    flex-direction: column;
    gap: 2px;
  }
  
  .gpcc-skin .gpcc-widget--tabs .gpcc-tabs button[role="tab"] {
    text-align: center;
  }
}

/* === ACCESSIBILITY ENHANCEMENTS === */

/* High contrast mode */
@media (prefers-contrast: high) {
  .gpcc-skin .gpcc-widget__link:hover,
  .gpcc-skin .gpcc-tag a:hover {
    text-decoration: underline;
  }
  
  .gpcc-skin .gpcc-widget {
    border-width: 2px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .gpcc-skin .gpcc-widget__link,
  .gpcc-skin .gpcc-widget--search input,
  .gpcc-skin .gpcc-widget--search button,
  .gpcc-skin .gpcc-tabs button,
  .gpcc-skin .gpcc-tag a,
  .gpcc-skin .gpcc-widget {
    transition: none;
  }
  
  .gpcc-skin .gpcc-widget--loading .gpcc-widget__link {
    animation: none;
    background: var(--surface-2);
  }
}

/* === PRINT STYLES === */
@media print {
  .gpcc-skin .gpcc-sidebar {
    display: none;
  }
}