/* Arena Module - corkboard-style browser for Are.na */

.arena-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-system);
  position: relative;
}

/* Header */
.arena-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.arena-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.arena-back-btn:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.arena-search-form {
  flex: 1;
  min-width: 0;
}

.arena-search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-family: var(--font-system);
}

.arena-search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.arena-surprise-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.arena-surprise-btn:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.arena-surprise-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.arena-surprise-btn.spinning svg {
  animation: arena-spin 0.7s linear infinite;
}

@keyframes arena-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Favorites row */
.arena-favorites-row {
  display: flex;
  gap: 6px;
  padding: var(--spacing-sm) var(--spacing-md);
  overflow-x: auto;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
  flex-shrink: 0;
}

.arena-favorites-row:empty {
  display: none;
}

.arena-fav-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 11px;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.arena-fav-chip:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.arena-fav-chip svg {
  color: var(--accent-primary);
  flex-shrink: 0;
}

/* Body */
.arena-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
}

/* Welcome */
.arena-welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100%;
  gap: var(--spacing-xs);
  padding: var(--spacing-lg);
  color: var(--text-secondary);
}

.arena-welcome-icon {
  color: var(--accent-primary);
  margin-bottom: var(--spacing-sm);
  opacity: 0.85;
}

.arena-welcome-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.arena-welcome-sub {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.arena-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  max-width: 480px;
}

.arena-chip {
  padding: 5px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.arena-chip:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

/* Search results */
.arena-search-meta {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.arena-channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--spacing-sm);
}

.arena-channel-card {
  position: relative;
  padding: var(--spacing-md) var(--spacing-sm) var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.arena-channel-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.arena-channel-card-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  padding-right: 20px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.arena-channel-card-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--text-muted);
}

.arena-avatar {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.arena-dot {
  opacity: 0.6;
}

/* Favorite toggle (shared: search cards + channel header) */
.arena-fav-toggle {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.arena-fav-toggle:hover {
  color: var(--accent-primary);
  transform: scale(1.15);
}

.arena-fav-toggle.active {
  color: var(--accent-primary);
}

.arena-channel-header .arena-fav-toggle {
  position: static;
  width: 30px;
  height: 30px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

/* Pager */
.arena-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.arena-page-btn {
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.arena-page-btn:hover:not(:disabled) {
  border-color: var(--accent-primary);
}

.arena-page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Channel header */
.arena-channel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px dashed var(--border-color);
}

.arena-channel-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0 0 4px;
  color: var(--text-primary);
}

.arena-channel-header-meta {
  display: flex;
  gap: 6px;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.arena-channel-header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.arena-external-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.arena-external-link:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* Corkboard masonry grid of blocks */
.arena-blocks-grid {
  column-width: 170px;
  column-gap: var(--spacing-md);
}

.arena-block-card {
  position: relative;
  display: inline-block;
  width: 100%;
  break-inside: avoid;
  margin-bottom: var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  padding: 6px;
  padding-top: 12px;
  cursor: pointer;
  box-shadow: 0 2px 6px var(--shadow-color);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

/* Pushpin */
.arena-block-card::before {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 1px 2px var(--shadow-color);
}

.arena-block-card:nth-child(4n) { transform: rotate(-1.4deg); }
.arena-block-card:nth-child(4n+1) { transform: rotate(1deg); }
.arena-block-card:nth-child(4n+2) { transform: rotate(-0.6deg); }
.arena-block-card:nth-child(4n+3) { transform: rotate(1.6deg); }

.arena-block-card:hover {
  transform: rotate(0deg) translateY(-3px) scale(1.02);
  border-color: var(--accent-primary);
  box-shadow: 0 8px 20px var(--shadow-color);
  z-index: 2;
}

.arena-block-card img {
  display: block;
  width: 100%;
  border-radius: 2px;
  background: var(--bg-tertiary);
}

.arena-block-caption {
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.arena-block-domain {
  display: block;
  color: var(--text-muted);
  font-size: 10px;
  margin-top: 2px;
}

.arena-block-noimg {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  color: var(--text-muted);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.arena-block-channel-icon {
  color: var(--accent-primary);
}

.arena-block-text {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.5;
  font-family: var(--font-mono);
  max-height: 160px;
  overflow: hidden;
  position: relative;
}

.arena-block-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 24px;
  background: linear-gradient(transparent, var(--bg-secondary));
}

.arena-block-text p:first-child { margin-top: 0; }
.arena-block-text p:last-child { margin-bottom: 0; }

/* Load more */
.arena-load-more-wrap {
  display: flex;
  justify-content: center;
  padding: var(--spacing-lg) 0;
}

.arena-load-more-btn {
  padding: 8px 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.arena-load-more-btn:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.arena-inline-spinner {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: arena-spin 0.8s linear infinite;
}

/* Loading / empty / error states */
.arena-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  min-height: 100%;
  color: var(--text-muted);
}

.arena-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: arena-spin 1s linear infinite;
}

.arena-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--text-muted);
}

.arena-empty.error {
  color: var(--accent-primary);
}

.arena-retry-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.arena-retry-btn:hover {
  background: var(--accent-primary);
}

/* Lightbox */
.arena-lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 20;
}

.arena-lightbox-overlay.show {
  opacity: 1;
}

.arena-lightbox-modal {
  position: relative;
  display: flex;
  flex-direction: column;
  max-width: 100%;
  max-height: 100%;
  width: 440px;
  background: var(--bg-window);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  box-shadow: var(--shadow-window);
  overflow: hidden;
  transform: scale(0.96);
  transition: transform var(--transition-normal);
}

.arena-lightbox-overlay.show .arena-lightbox-modal {
  transform: scale(1);
}

.arena-lightbox-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  z-index: 1;
}

.arena-lightbox-close:hover {
  background: var(--accent-primary);
}

.arena-lightbox-media {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  max-height: 55vh;
  overflow: hidden;
}

.arena-lightbox-img {
  max-width: 100%;
  max-height: 55vh;
  object-fit: contain;
  display: block;
}

.arena-lightbox-noimg {
  padding: var(--spacing-xl);
  color: var(--text-muted);
  font-size: 24px;
  font-weight: 600;
}

.arena-lightbox-info {
  padding: var(--spacing-md);
  overflow-y: auto;
}

.arena-lightbox-info h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-xs);
}

.arena-lightbox-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
}

.arena-lightbox-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.arena-lightbox-links a {
  font-size: var(--font-size-sm);
  color: var(--accent-primary);
  text-decoration: none;
}

.arena-lightbox-links a:hover {
  text-decoration: underline;
}