.ec-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
  }

  .ec-toggles {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
  }

  .ec-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 99px;
    background: var(--bg-page);
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
  }

  .ec-toggle-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    transition: background 0.15s ease;
  }

  .ec-toggle-active {
    color: var(--accent);
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
  }

  .ec-toggle-active .ec-toggle-dot {
    background: var(--accent);
  }

  .ec-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  @media (max-width: 640px) {
    .ec-panels {
      grid-template-columns: 1fr;
    }
  }

  .ec-panel {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .ec-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 2rem;
  }

  .ec-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
  }

  .ec-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.4rem;
    background: var(--bg-page);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
  }

  .ec-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
  }

  .ec-textarea {
    width: 100%;
    min-height: 280px;
    padding: 0.875rem;
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-main);
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    box-sizing: border-box;
    transition: border-color 0.15s ease;
  }

  .ec-textarea:focus {
    outline: none;
    border-color: var(--accent);
  }

  .ec-output {
    color: var(--text-muted);
  }

  .ec-stats {
    font-size: 0.8125rem;
    color: var(--text-muted);
    min-height: 1.2em;
  }

  .ec-toast {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(0.5rem);
    background: var(--text-main);
    color: var(--bg-page);
    padding: 0.5rem 1.25rem;
    border-radius: 99px;
    font-size: 0.8125rem;
    font-weight: 600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .ec-toast-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }