.bitcoin-addon {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-top: 14px;
  padding: 20px 22px;
  border: 1px solid #e7d9c5;
  border-radius: 9px;
  background: #fffaf3;
  transition: background .18s, border-color .18s;
}

.bitcoin-addon.active {
  background: #fcf3e5;
  border-color: #d59545;
}

.bitcoin-symbol {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 9px;
  background: #f5e4ca;
  color: #82500f;
  font: 700 28px 'DM Sans', sans-serif;
}

.bitcoin-copy .eyebrow { color: #98601a; margin-bottom: 5px; }
.bitcoin-copy h3 { font-size: 17px; }
.bitcoin-copy p { max-width: 850px; margin-top: 5px; color: #58656a; font-size: 12px; line-height: 1.6; }
.bitcoin-sources { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 8px; }
.bitcoin-sources a { color: #80530f; font-size: 11px; font-weight: 650; text-decoration: underline; text-underline-offset: 3px; }

.bitcoin-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 13px;
  border: 1px solid #d9c3a0;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 700;
}

.bitcoin-switch input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.switch-track { position: relative; width: 32px; height: 19px; border-radius: 12px; background: #b5bdbc; transition: background .18s; }
.switch-track::before { content: ''; position: absolute; top: 3px; left: 3px; width: 13px; height: 13px; border-radius: 50%; background: #fff; transition: transform .18s; }
.bitcoin-switch input:checked + .switch-track { background: #98601a; }
.bitcoin-switch input:checked + .switch-track::before { transform: translateX(13px); }
.bitcoin-switch input:focus-visible + .switch-track { outline: 2px solid var(--green); outline-offset: 4px; }
.strategies.with-bitcoin .strategy-bottom { flex-direction: column; align-items: flex-start; gap: 3px; }

@media (max-width: 1200px) {
  .bitcoin-addon { grid-template-columns: 46px minmax(0, 1fr); }
  .bitcoin-switch { grid-column: 2; justify-self: start; }
}

@media (max-width: 650px) {
  .bitcoin-addon { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; padding: 16px; }
  .bitcoin-symbol { width: 38px; height: 38px; font-size: 24px; }
  .bitcoin-copy h3 { font-size: 15px; }
  .bitcoin-switch { grid-column: 1 / -1; }
}