/* Native expandable choices on phones only. Desktop form styles are unchanged. */
@media (max-width: 700px) {
  .campaign .gap-options:has(.mobile-gap-group) {
    display: grid;
    gap: 10px;
  }

  .campaign .mobile-gap-group {
    min-width: 0;
    margin: 0;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
  }

  .campaign .mobile-gap-group > summary {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 56px;
    padding: 14px 32px 14px 13px;
    list-style: none;
    font-size: .875rem;
    font-weight: 650;
    line-height: 1.5;
    cursor: pointer;
  }

  .campaign .mobile-gap-group > summary::-webkit-details-marker { display: none; }
  .campaign .mobile-gap-group > summary::marker { content: ''; }
  .campaign .mobile-gap-group > summary > span:first-child { min-width: 0; flex: 1; }

  .campaign .mobile-gap-group > summary::after {
    content: '';
    position: absolute;
    right: 15px;
    width: 7px;
    height: 7px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
  }

  .campaign .mobile-gap-group[open] > summary::after { transform: rotate(225deg); }
  .campaign .mobile-gap-group > summary:focus-visible { outline: 2px solid var(--blue); outline-offset: -3px; }
  .campaign .mobile-gap-group.has-selection { border-color: #8da5f8; }
  .campaign .mobile-gap-group.has-selection > summary { background: #f3f6ff; }

  .campaign .mobile-gap-count {
    flex: 0 0 auto;
    font-size: .6875rem;
    line-height: 1.4;
    color: var(--blue);
    white-space: nowrap;
  }

  .campaign .mobile-gap-choices {
    display: grid;
    gap: 8px;
    padding: 0 10px 10px;
  }

  .campaign .mobile-gap-choices > label {
    margin: 0;
    min-width: 0;
    min-height: 52px;
    background: var(--soft);
    font-weight: 500;
  }

  .campaign .mobile-gap-feedback {
    margin: 0;
    color: var(--muted);
    font-size: .8125rem;
    line-height: 1.5;
  }

  .campaign .mobile-gap-feedback:empty { display: none; }
}

@media (max-width: 700px) {
  .campaign .mobile-budget-details {
    grid-column: 1 / -1;
    min-width: 0;
    margin: 0;
    padding-block: 2px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .campaign .mobile-budget-details > summary {
    min-height: 48px;
    padding: 13px 0;
    color: var(--ink);
    font-size: .8125rem;
    font-weight: 650;
    line-height: 1.5;
    cursor: pointer;
  }

  .campaign .mobile-budget-details > p {
    margin: 0 0 16px;
    font-size: .8125rem;
    line-height: 1.6;
    color: var(--muted);
  }

  .campaign .mobile-budget-fields {
    display: grid;
    gap: 20px;
    padding-bottom: 18px;
  }
}