/* =========================
   SOCIAL LAYER COMPONENTS
   Extended styles for community and social features
   ========================= */

/* Social Feed Post */
.feed-post {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  transition: border-color var(--transition-fast);
}

.feed-post:hover {
  border-color: var(--color-border-strong);
}

.post-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-sm);
}

.post-author {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex: 1;
}

.post-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.post-avatar:hover {
  border-color: var(--color-accent-primary);
}

.post-author-info {
  flex: 1;
  min-width: 0;
}

.post-author-name {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.post-author-name .verified {
  color: var(--color-accent-secondary);
  font-size: 0.875rem;
}

.post-author-meta {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

.post-content {
  margin-bottom: var(--space-md);
  line-height: 1.6;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.post-content p {
  margin-bottom: var(--space-sm);
}

.post-hashtag {
  color: var(--color-accent-secondary);
  font-weight: 500;
  cursor: pointer;
}

.post-hashtag:hover {
  text-decoration: underline;
}

.post-mention {
  color: var(--color-accent-primary);
  font-weight: 500;
  cursor: pointer;
}

.post-mention:hover {
  text-decoration: underline;
}

.post-media {
  margin: var(--space-md) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.post-media img,
.post-media video {
  width: 100%;
  height: auto;
  display: block;
}

.post-link-preview {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: var(--space-md) 0;
  transition: border-color var(--transition-fast);
  cursor: pointer;
}

.post-link-preview:hover {
  border-color: var(--color-accent-primary);
}

.post-link-image {
  width: 100%;
  aspect-ratio: 2/1;
  object-fit: cover;
  background: var(--color-bg-tertiary);
}

.post-link-info {
  padding: var(--space-md);
}

.post-link-title {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.25rem;
  font-size: 0.9375rem;
}

.post-link-domain {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

/* Quoted/Reposted Post */
.quoted-post {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  margin-top: var(--space-sm);
  background: var(--color-bg-tertiary);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.quoted-post:hover {
  background: var(--color-bg-elevated);
}

.quoted-post .post-author {
  margin-bottom: var(--space-xs);
}

.quoted-post .post-avatar {
  width: 32px;
  height: 32px;
}

.quoted-post .post-content {
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* Post Actions */
.post-actions {
  display: flex;
  gap: var(--space-lg);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.post-action {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
  cursor: pointer;
  padding: 0.375rem 0.625rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.post-action:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.post-action.active {
  color: var(--color-accent-primary);
}

.post-action.liked {
  color: var(--color-error);
}

.post-action.reposted {
  color: var(--color-accent-green);
}

.post-action.bookmarked {
  color: var(--color-accent-tertiary);
}

/* Post Composer */
.post-composer {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.composer-input-area {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.composer-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.composer-input {
  flex: 1;
  min-height: 80px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  resize: vertical;
  transition: border-color var(--transition-fast);
}

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

.composer-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.composer-tools {
  display: flex;
  gap: var(--space-xs);
}

.composer-tool {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.composer-tool:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

/* Profile Header */
.profile-header {
  position: relative;
  margin-top: var(--header-height);
}

.profile-cover {
  width: 100%;
  height: 240px;
  object-fit: cover;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(0, 212, 255, 0.2));
}

.profile-info {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
}

.profile-avatar-container {
  position: relative;
  margin-top: -64px;
  margin-bottom: var(--space-md);
}

.profile-avatar {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  border: 4px solid var(--color-bg-primary);
  object-fit: cover;
  background: var(--color-bg-tertiary);
}

.profile-actions {
  position: absolute;
  top: var(--space-md);
  right: var(--space-lg);
  display: flex;
  gap: var(--space-sm);
}

.profile-meta {
  margin-bottom: var(--space-lg);
}

.profile-name {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.profile-username {
  font-size: 0.9375rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
}

.profile-bio {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  max-width: 600px;
}

.profile-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}

.profile-link {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--color-text-secondary);
}

.profile-link:hover {
  color: var(--color-accent-primary);
}

.profile-stats {
  display: flex;
  gap: var(--space-lg);
  font-size: 0.9375rem;
}

.profile-stat {
  cursor: pointer;
  transition: color var(--transition-fast);
}

.profile-stat:hover {
  color: var(--color-accent-primary);
}

.profile-stat-value {
  font-weight: 700;
  color: var(--color-text-primary);
  margin-right: 0.25rem;
}

.profile-stat-label {
  color: var(--color-text-tertiary);
}

/* Profile Tabs */
.profile-tabs {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.profile-tabs-list {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.profile-tab {
  padding: var(--space-md) 0;
  color: var(--color-text-tertiary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  font-weight: 500;
  font-size: 0.9375rem;
}

.profile-tab:hover {
  color: var(--color-text-primary);
}

.profile-tab.active {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent-primary);
}

/* Trending Sidebar */
.trending-sidebar {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
}

.trending-section {
  margin-bottom: var(--space-lg);
}

.trending-section:last-child {
  margin-bottom: 0;
}

.trending-section-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.trending-item {
  padding: var(--space-sm) 0;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.trending-item:hover {
  opacity: 0.7;
}

.trending-tag {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 0.9375rem;
  margin-bottom: 0.125rem;
}

.trending-count {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.trending-creator-item {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  padding: var(--space-sm) 0;
  cursor: pointer;
}

.trending-creator-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.trending-creator-info {
  flex: 1;
  min-width: 0;
}

.trending-creator-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.trending-creator-role {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Notification Badge */
.notification-badge {
  position: relative;
}

.notification-badge::after {
  content: attr(data-count);
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--color-error);
  color: white;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 0.125rem 0.375rem;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.notification-badge[data-count="0"]::after {
  display: none;
}

/* Notifications Panel */
.notifications-panel {
  position: absolute;
  top: 100%;
  right: 0;
  width: 380px;
  max-height: 500px;
  overflow-y: auto;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  margin-top: var(--space-sm);
  z-index: 1000;
}

.notifications-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
  font-size: 1.125rem;
}

.notification-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background var(--transition-fast);
  display: flex;
  gap: var(--space-sm);
}

.notification-item:hover {
  background: var(--color-bg-tertiary);
}

.notification-item.unread {
  background: rgba(255, 107, 53, 0.05);
}

.notification-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.25rem;
  line-height: 1.5;
}

.notification-text strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.notification-time {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

/* Community Space Card */
.space-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
  cursor: pointer;
}

.space-card:hover {
  border-color: var(--color-border-strong);
}

.space-card-cover {
  width: 100%;
  height: 120px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
}

.space-card-content {
  padding: var(--space-md);
}

.space-card-title {
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

.space-card-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.space-card-stats {
  display: flex;
  gap: var(--space-md);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

/* Collection Card */
.collection-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  transition: border-color var(--transition-fast);
  cursor: pointer;
}

.collection-card:hover {
  border-color: var(--color-accent-primary);
}

.collection-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-sm);
}

.collection-title {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text-primary);
}

.collection-count {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  background: var(--color-bg-tertiary);
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
}

.collection-description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.collection-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.25rem;
}

.collection-preview-item {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.collection-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Follow Button */
.follow-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.follow-btn:hover {
  background: var(--color-bg-elevated);
  border-color: var(--color-accent-primary);
}

.follow-btn.following {
  background: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: white;
}

.follow-btn.following:hover {
  background: var(--color-error);
  border-color: var(--color-error);
}

/* Topic Tag */
.topic-tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.topic-tag:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-accent-primary);
  color: var(--color-text-primary);
}

.topic-tag.active {
  background: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
  color: white;
}

/* Two-column Social Layout */
.social-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-lg);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-lg);
}

.social-main {
  min-width: 0;
}

.social-sidebar {
  min-width: 0;
}

@media (max-width: 1024px) {
  .social-layout {
    grid-template-columns: 1fr;
  }
  
  .social-sidebar {
    display: none;
  }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  color: var(--color-text-tertiary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.3;
}

.empty-state-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.empty-state-description {
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

/* Verified Badge */
.verified-badge {
  display: inline-flex;
  align-items: center;
  color: var(--color-accent-secondary);
  font-size: 1rem;
}

/* Premium Badge */
.premium-badge {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-accent-tertiary), var(--color-accent-primary));
  color: var(--color-bg-primary);
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Responsive Social Components */
@media (max-width: 768px) {
  .feed-post {
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  
  .post-composer {
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  
  .profile-cover {
    height: 160px;
  }
  
  .profile-avatar {
    width: 96px;
    height: 96px;
  }
  
  .profile-avatar-container {
    margin-top: -48px;
  }
  
  .notifications-panel {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    width: 100%;
    max-height: calc(100vh - var(--header-height));
    border-radius: 0;
  }
}