.conversation-item.active {
      background: var(--accent);
      color: #ffffff;
    }
    .conversation-item.active .conversation-avatar {
      background: rgba(255,255,255,0.2);
    }
    .conversation-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--accent);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 14px;
      flex-shrink: 0;
    }
    .conversation-info {
      flex: 1;
      min-width: 0;
    }
    .conversation-name-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
    }
    .conversation-name {
      font-weight: 600;
      font-size: 14px;
      color: var(--text);
    }
    .conversation-item.active .conversation-name {
      color: #ffffff;
    }
    .conversation-time {
      font-size: 12px;
      color: var(--muted);
    }
    .conversation-item.active .conversation-time {
      color: rgba(255,255,255,0.8);
    }
    .conversation-meta {
      margin-top: 2px;
      font-size: 11px;
      color: var(--muted);
    }
    .conversation-item.active .conversation-meta {
      color: rgba(255,255,255,0.85);
    }
    .message-bubble {
      max-width: 70%;
      padding: 12px 16px;
      border-radius: 16px;
      margin-bottom: 12px;
      font-size: 14px;
      line-height: 1.5;
    }
    .message-bubble.sent {
      background: var(--accent);
      color: #ffffff;
      margin-left: auto;
      text-align: right;
    }
    .message-bubble.received {
      background: var(--chip-bg);
      color: var(--text);
      margin-right: auto;
    }
    .message-time {
      font-size: 11px;
      color: var(--muted);
      margin-top: 4px;
    }
    .message-bubble.sent .message-time {
      color: rgba(255,255,255,0.8);
    }
    .message-header-container {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 16px;
      text-align: left;
      color: var(--text);
    }
    .message-header-info {
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .message-header-name {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .message-header-name-button {
      border: none;
      background: var(--accent);
      color: #ffffff;
      font-size: 14px;
      font-weight: 600;
      padding: 6px 12px;
      border-radius: 6px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .message-header-name-button::after {
      content: '↗';
      font-size: 12px;
    }
    .message-header-name-button:hover {
      box-shadow: 0 4px 12px rgba(45,62,159,0.3);
    }
    .message-header-phone {
      font-size: 12px;
      color: var(--muted);
    }
    .message-header-attributes {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .message-attribute-chip {
      background: var(--chip-bg);
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 4px 10px;
      font-size: 11px;
      color: var(--muted);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .message-attribute-label {
      font-weight: 600;
      color: var(--text);
    }
    .message-header-actions {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }
    .message-header-actions-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .message-action-button {
      border: 1px solid var(--border);
      background: var(--card);
      color: var(--text);
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .message-action-button:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-1px);
    }
    .message-action-button.primary {
      background: var(--accent);
      border-color: var(--accent);
      color: #ffffff;
    }
    .message-action-button.primary:hover {
      background: var(--accent-2);
      border-color: var(--accent-2);
      color: #ffffff;
    }
    .message-action-placeholder {
      font-size: 12px;
      color: var(--muted);
      display: flex;
      align-items: center;
    }
    .message-header-config {
      position: relative;
    }
    .message-header-config-toggle {
      border: 1px solid var(--border);
      background: var(--card);
      color: var(--text);
      padding: 6px 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .message-header-config-toggle:hover {
      border-color: var(--accent);
      color: var(--accent);
    }
    .message-header-config-menu {
      position: absolute;
      top: calc(100% + 6px);
      right: 0;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 12px;
      display: none;
      min-width: 220px;
      box-shadow: 0 12px 24px rgba(15,23,42,0.18);
      z-index: 30;
    }
    .message-header-config-menu.visible {
      display: block;
    }
    .message-header-config-section {
      margin-bottom: 12px;
    }
    .message-header-config-section:last-child {
      margin-bottom: 0;
    }
    .message-header-config-label {
      font-size: 11px;
      text-transform: uppercase;
      font-weight: 700;
      color: var(--muted);
      letter-spacing: 0.05em;
      margin-bottom: 6px;
    }
    .message-header-config-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      color: var(--text);
      margin-bottom: 6px;
    }
    .message-header-config-item:last-child {
      margin-bottom: 0;
    }
    .message-header-config-item input {
      accent-color: var(--accent);
    }
    .message-header-empty {
      color: var(--muted);
      font-size: 13px;
      text-align: center;
      padding: 32px;
    }