react-mention-input/src/MentionInput.css

A React component for input with @mention functionality.

.mention-container {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.5;
  color: #333;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mention-input-container {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid #e0e0e0;
  border-radius: 24px;
  background: #fff;
  transition: all 0.2s;
  position: relative;
  width: 100%;
  box-sizing: border-box;
}

.mention-input-container:focus-within {
  border-color: #ddd;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.mention-input-container.dragging-over {
  border-color: #2684FF;
  background-color: rgba(38, 132, 255, 0.05);
}

.mention-input-container.no-image {
  min-height: 42px; /* Smaller height when no image is attached */
}

.mention-input-wrapper {
  flex: 1;
  position: relative;
  min-width: 0;
  margin: 0 10px;
}

.input-header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 4px;
}

.input-content {
  position: relative;
  flex-grow: 1;
}

.placeholder {
  position: absolute;
  color: #999;
  font-size: 13px;
  pointer-events: none;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.mention-input {
  outline: none;
  padding: 6px 0;
  font-size: 13px;
  min-height: 24px;
  max-height: 120px;
  overflow-y: auto;
  word-break: break-word;
  width: 100%;
}

.action-buttons {
  display: flex;
  align-items: center;
  margin-left: 8px;
}

.image-button, .send-button {
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
  padding: 5px;
}

.image-button {
  color: #666;
  font-size: 14px;
}

.image-button:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.send-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #23488C;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 24px;
  transition: background-color 0.2s;
}

.send-button:hover {
  background-color: #1a3a7a;
}

/* Suggestion list with proper columnar layout */
.suggestion-container {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border: 1px solid #eaeaea;
  overflow: hidden;
  width: 250px;
  max-height: 300px;
}

.suggestion-list {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;
  max-height: 300px;
  overflow-y: auto;
}

.suggestion-item {
  padding: 8px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
  border-bottom: 1px solid #f0f0f0;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background-color: #f5f8ff;
}

.user-icon {
  width: 28px;
  height: 28px;
  min-width: 28px; /* Ensure fixed width */
  background-color: #e1e8ff;
  color: #2684FF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 12px;
  margin-right: 10px;
}

.user-name {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.mention-highlight {
  background-color: rgba(38, 132, 255, 0.1);
  color: #2684FF;
  border-radius: 4px;
  padding: 1px 4px;
  font-weight: 500;
}

.hashtag-highlight {
  background-color: rgba(255, 165, 0, 0.1);
  color: #FF8C00;
  border-radius: 4px;
  padding: 1px 4px;
  font-weight: 500;
}

.link-highlight {
  color: #2684FF;
  text-decoration: none;
}

.link-highlight:hover {
  text-decoration: underline;
}

.selected-images {
  width: 100%;
  margin-top: 4px;
}

.image-preview-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin-bottom: 4px;
  max-width: 250px;
  background: #fff;
  border: 1px solid #eaeaea;
}

.image-preview-card img {
  display: block;
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
}

.remove-image-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: #ff5252;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: all 0.2s;
}

.remove-image-btn:hover {
  background: #fff;
  transform: scale(1.05);
}

.image-uploading {
  padding: 8px;
  background: #f5f5f5;
  border-radius: 4px;
  font-size: 14px;
  color: #666;
  margin-top: 8px;
}

.image-button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  padding: 4px 8px;
  margin-right: 8px;
}

.image-button:hover {
  opacity: 0.7;
}

.mention-input-container .controls {
  display: flex;
  align-items: center;
  width: 100%;
  margin-top: 8px;
}

.drag-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 5;
  border-radius: 24px;
  border: 2px dashed #2684FF;
}

.drag-message {
  color: #2684FF;
  font-weight: 500;
}

.drag-icon {
  font-size: 24px;
  margin-bottom: 8px;
}

.action-buttons button {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  margin-left: 2px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.action-buttons button:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

/* .suggestion-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 4px;
  list-style: none;
  margin: 4px 0;
  padding: 0;
  max-height: 150px;
  overflow-y: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 1;
} */