.tool-card {
    margin: 1.25rem 0;
    padding: 1rem 1.1rem;
    border: 1px solid #d8dee9;
    border-radius: 4px;
    background: #fafbfc;
  }

  .tool-card summary {
    cursor: pointer;
  }

  .temp-mail-panel {
    display: grid;
    gap: 0.65rem;
    margin-top: 1rem;
  }

  .temp-mail-panel label {
    font-weight: 700;
  }

  .temp-mail-panel input {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1px solid #c7ccd1;
    border-radius: 4px;
  }

  .temp-mail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 0.25rem;
  }

  .temp-mail-actions button {
    padding: 0.55rem 0.9rem;
    border: 0;
    border-radius: 4px;
    background: #1772d0;
    color: #fff;
    font-weight: 700;
    cursor: pointer;
  }

  .temp-mail-actions button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
  }

  .mailbox-display {
    padding: 0.8rem;
    border: 1px dashed #9aa7b2;
    border-radius: 4px;
    background: #fff;
    font-family: monospace;
    font-weight: 700;
    overflow-wrap: anywhere;
  }

  #temp-mail-output {
    min-height: 7rem;
    margin-top: 0.5rem;
    padding: 0.8rem;
    border-radius: 4px;
    background: #f2f5f7;
    color: #252b32;
    overflow-wrap: anywhere;
    max-height: 380px;
    overflow: auto;
    white-space: pre-wrap;
  }