.jc-converter {
    width: 100%;
    max-width: 1000px;
    margin: 2rem auto;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    overflow: hidden;
    box-shadow:
      0 20px 50px -12px rgba(6, 182, 212, 0.1),
      0 0 0 1px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
  }

  .jc-header {
    padding: 1.5rem 2.5rem;
    background: var(--bg-page);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .jc-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
  }

  .jc-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #94a3b8;
    flex-shrink: 0;
    transition: background 0.3s ease, box-shadow 0.3s ease;
  }

  .jc-dot-active {
    background: #22d3ee;
    box-shadow: 0 0 8px #22d3ee;
  }

  .jc-option-strip {
    display: flex;
    align-items: center;
    gap: 2rem;
  }

  .jc-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-main);
    user-select: none;
  }

  .jc-checkbox-label input[type='checkbox'] {
    width: 18px;
    height: 18px;
    accent-color: #0ea5e9;
  }

  .jc-main-input {
    padding: 2.5rem;
    background: radial-gradient(circle at 0% 0%, rgba(6, 182, 212, 0.03) 0%, transparent 40%);
  }

  .jc-drop-zone {
    width: 100%;
    min-height: 200px;
    border: 2px dashed var(--border-color);
    border-radius: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
  }

  .jc-drop-zone.jc-dragover {
    border-color: #0ea5e9;
    background: rgba(6, 182, 212, 0.05);
    transform: scale(1.01);
  }

  .jc-zone-visuals {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    pointer-events: none;
  }

  .jc-zone-icon {
    color: #0ea5e9;
    opacity: 0.3;
  }

  .jc-zone-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    opacity: 0.7;
  }

  .jc-json-textarea {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: text;
    padding: 2rem;
    font-size: 0.85rem;
    resize: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    box-sizing: border-box;
    transition: opacity 0.3s ease;
  }

  .jc-json-textarea:focus {
    opacity: 1;
    background: var(--bg-surface);
    outline: none;
  }

  .jc-preview {
    padding: 0 2.5rem 2.5rem;
    overflow-x: auto;
  }

  .jc-preview-wrapper {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
    background: var(--bg-page);
  }

  .jc-preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
    color: var(--text-main);
  }

  .jc-preview-table th {
    background: var(--border-color);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
  }

  .jc-preview-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    white-space: nowrap;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .jc-footer {
    padding: 2rem 2.5rem;
    background: var(--bg-page);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
  }

  .jc-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.75rem;
    border-radius: 0.875rem;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
  }

  .jc-btn-primary {
    background: #0ea5e9;
    color: white;
  }

  .jc-btn-primary:hover {
    background: #6366f1;
    box-shadow: 0 8px 16px -4px rgba(6, 182, 212, 0.4);
    transform: translateY(-2px);
  }

  .jc-btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-main);
  }

  .jc-btn-outline:hover {
    border-color: #0ea5e9;
  }

  .jc-hidden {
    display: none;
  }

  @media (max-width: 700px) {
    .jc-footer {
      flex-direction: column;
    }

    .jc-btn {
      width: 100%;
      justify-content: center;
    }

    .jc-header {
      padding: 1.25rem 1.5rem;
    }

    .jc-main-input {
      padding: 1.5rem;
    }

    .jc-preview {
      padding: 0 1.5rem 1.5rem;
    }
  }