@layer components {
  /* -------------------------------------------------------------------------
     Toggle switch
     ------------------------------------------------------------------------- */
  .toggle {
    display: flex;
    align-items: center;
    gap: var(--inline-space);
    cursor: pointer;
  }

  .toggle__input {
    appearance: none;
    position: relative;
    inline-size: 2.75rem;
    block-size: 1.5rem;
    background-color: var(--color-border);
    border-radius: 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    flex-shrink: 0;

    &::before {
      content: "";
      position: absolute;
      inset-block-start: 0.125rem;
      inset-inline-start: 0.125rem;
      inline-size: 1.25rem;
      block-size: 1.25rem;
      background-color: oklch(var(--lch-white));
      border-radius: 50%;
      transition: transform 0.2s ease;
      box-shadow: 0 1px 3px oklch(0% 0 0 / 0.2);
    }

    &:checked {
      background-color: var(--color-primary);

      &::before {
        transform: translateX(1.25rem);
      }
    }

    &:focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }
  }

  .toggle__label {
    font-weight: 500;
  }

  .toggle__status {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
  }

  .toggle__status--active {
    color: var(--color-ink);
  }

  /* Screen reader only utility */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  /* -------------------------------------------------------------------------
     Forwarding header (title + toggle)
     ------------------------------------------------------------------------- */
  .forwarding-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--inline-space-double);
    margin-block-end: var(--block-space);
  }

  .forwarding-header__text {
    flex: 1;

    & h2 {
      margin: 0;
    }

    & .field__hint {
      margin-block-start: 0.25rem;
    }
  }

  .forwarding-disabled-hint {
    color: var(--color-ink-muted);
    font-size: var(--text-sm);
    margin: 0;
  }

  /* -------------------------------------------------------------------------
     Forwarding address field
     ------------------------------------------------------------------------- */
  .forwarding-address {
    margin-block-start: var(--block-space);
    padding-block-start: var(--block-space);
    border-block-start: 1px solid var(--color-border);
  }

  .forwarding-address__label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-ink-muted);
    margin-block-end: 0.5rem;
  }

  .forwarding-address__field {
    display: flex;
    align-items: center;
    background-color: var(--color-canvas-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--input-radius);
    overflow: hidden;
    transition:
      border-color 0.15s ease,
      box-shadow 0.15s ease;

    &:hover {
      border-color: var(--color-primary);
    }

    &:focus-within {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px oklch(var(--lch-primary) / 0.15);
    }
  }

  .forwarding-address__value {
    flex: 1;
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-ink);
    user-select: all;
    word-break: break-all;
    background: transparent;
  }

  .forwarding-address__copy {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--color-ink-muted);
    cursor: pointer;
    transition:
      color 0.15s ease,
      background-color 0.15s ease;
    border-inline-start: 1px solid var(--color-border);

    &:hover {
      color: var(--color-primary);
      background-color: oklch(var(--lch-primary) / 0.05);
    }

    &.copied {
      color: var(--color-ink);
    }
  }

  .forwarding-address__icon {
    inline-size: 1.125rem;
    block-size: 1.125rem;
    flex-shrink: 0;
  }

  .forwarding-address__icon--check {
    color: var(--color-ink);
  }

  .forwarding-address__copy-label {
    font-size: var(--text-sm);
    font-weight: 500;
  }

  /* -------------------------------------------------------------------------
     Forwarding setup instructions
     ------------------------------------------------------------------------- */
  .forwarding-setup {
    margin-block-start: var(--block-space-double);
    padding-block-start: var(--block-space);
    border-block-start: 1px solid var(--color-border);
  }

  .forwarding-setup__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--inline-space);
    margin-block-end: var(--block-space);
    flex-wrap: wrap;
  }

  .forwarding-setup__title {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-ink-muted);
  }

  .forwarding-setup__tabs {
    display: flex;
    gap: 0.25rem;
    background-color: var(--color-canvas-alt);
    padding: 0.25rem;
    border-radius: var(--input-radius);
  }

  .forwarding-setup__tab {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    border: none;
    background: transparent;
    border-radius: calc(var(--input-radius) - 2px);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-ink-muted);
    cursor: pointer;
    transition: all 0.15s ease;

    &:hover {
      color: var(--color-ink);
    }
  }

  .forwarding-setup__tab--active {
    background-color: oklch(var(--lch-white));
    color: var(--color-ink);
    box-shadow: 0 1px 3px oklch(0% 0 0 / 0.1);
  }

  .forwarding-setup__tab-icon {
    inline-size: 1rem;
    block-size: 1rem;
    flex-shrink: 0;
  }

  .forwarding-setup__content {
    animation: fadeIn 0.15s ease;
  }

  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(-4px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .forwarding-setup__section {
    &:not(:first-child) {
      margin-block-start: var(--block-space);
      padding-block-start: var(--block-space);
      border-block-start: 1px dashed var(--color-border);
    }
  }

  .forwarding-setup__section-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 0.5rem;
  }

  .forwarding-setup__steps {
    margin: 0;
    padding-inline-start: 1.5rem;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
  }

  .forwarding-setup__steps li {
    margin-block: 0.5rem;
    padding-inline-start: 0.25rem;

    &::marker {
      color: var(--color-primary);
      font-weight: 600;
    }
  }

  /* -------------------------------------------------------------------------
     Integration status
     ------------------------------------------------------------------------- */
  .integration-status {
    display: flex;
    align-items: center;
    gap: var(--inline-space);
    flex-wrap: wrap;
  }

  .integration-status__email {
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
  }

  /* Hidden utility */
  .hidden {
    display: none !important;
  }

  /* -------------------------------------------------------------------------
     PST Import instructions
     ------------------------------------------------------------------------- */
  .pst-instructions {
    margin-block-end: var(--block-space);
    padding: var(--block-space);
    background-color: var(--color-canvas-alt);
    border-radius: var(--input-radius);
  }

  .pst-instructions__title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 0.75rem;
  }

  .pst-instructions__tips {
    margin-block-start: var(--block-space);
    padding-block-start: var(--block-space);
    border-block-start: 1px dashed var(--color-border);
  }

  /* -------------------------------------------------------------------------
     PST Upload Form
     ------------------------------------------------------------------------- */
  .pst-upload-form__row {
    display: flex;
    align-items: center;
    gap: var(--inline-space);
    flex-wrap: wrap;
  }

  .pst-upload-form__hint {
    margin-block-start: 0.5rem;
  }

  .file-input {
    flex: 1;
    min-inline-size: 200px;
  }
}