.sidebar-nav {
  border-radius: var(--radius-md);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.side-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.side-nav-link:hover, .side-nav-link.active {
  background: rgba(0, 240, 255, 0.08);
  color: #fff;
}

/* Post Composer */
.create-post-card {
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}
.composer-top {
  display: flex;
  gap: 14px;
}
.composer-top textarea {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  outline: none;
  font-size: 1rem;
  font-family: inherit;
  resize: none;
}
.media-preview-box {
  position: relative;
  margin: 14px 0 6px 54px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  max-height: 280px;
  background: #000;
}
.media-preview-box img, .media-preview-box video {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
}
.btn-remove-preview {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  cursor: pointer;
}
.composer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-glass);
}
.composer-tools {
  display: flex;
  gap: 16px;
}
.btn-tool-media {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
}
.composer-publish-btn {
  padding: 8px 24px;
}

/* Feed Filter Tabs */
.feed-tabs-row {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
}
.feed-tab-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}
.feed-tab-btn.active {
  color: #fff;
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.1);
}

/* Post Cards */
.posts-stream {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.post-card {
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
}
.post-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.post-author-box {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.post-author-meta {
  display: flex;
  flex-direction: column;
}
.post-author-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
}
.post-timestamp {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.post-body {
  font-size: 0.98rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.post-media-wrap {
  margin-top: 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  max-height: 520px;
  background: #000;
}
.post-media-wrap img, .post-video {
  width: 100%;
  max-height: 480px;
  object-fit: contain;
  display: block;
}
.post-actions-row {
  display: flex;
  gap: 20px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-glass);
}
.post-action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.post-action-btn:hover { color: #fff; }
.post-action-btn.liked { color: var(--danger); }