.exchange-entry { gap: 0.45rem; color: #dfe7e2; }
.exchange-entry:hover { border-color: #4b5a51; background: #171c19; }
.exchange-modal { max-width: min(94vw, 760px); width: min(94vw, 760px); max-height: min(92vh, 860px); overflow: hidden; }
.exchange-shell { padding: 26px; display: flex; flex-direction: column; gap: 1rem; min-width: 0; max-height: min(92vh, 860px); overflow: auto; }
.exchange-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.exchange-head h2 { margin: 0; font-size: 25px; letter-spacing: -.035em; }
.exchange-head .icon-button { color: #667069; border-color: var(--line); flex: 0 0 auto; }
.exchange-step { display: grid; gap: 1rem; min-height: 0; }
.exchange-context { margin: 0; font-size: 11px; color: #637069; background: #f4f6f4; border-radius: 10px; padding: 9px 11px; }
.exchange-lookup-form { display: grid; grid-template-columns: minmax(0, 1fr) 126px; gap: 9px; align-items: end; }
.exchange-lookup-form label,
.exchange-field { display: grid; gap: 7px; font-size: 11px; color: #667069; font-weight: 700; margin: 0; }
.exchange-lookup-form input,
.exchange-field input,
.exchange-field textarea { width: 100%; box-sizing: border-box; }
.exchange-field textarea { min-height: 86px; resize: vertical; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font: inherit; outline: 0; }
.exchange-field textarea:focus { border-color: #86978c; box-shadow: 0 0 0 3px #3bd18413; }
.exchange-helper { margin: 0; color: var(--soft); font-size: 12px; line-height: 1.55; }
.exchange-sale-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.exchange-sale-summary > div,
.exchange-result { border: 1px solid var(--line); border-radius: 11px; background: #f4f6f4; padding: 12px; display: grid; gap: 4px; }
.exchange-sale-summary span,
.exchange-result span,
.exchange-source-line span { color: var(--soft); font-size: 11px; }
.exchange-sale-summary strong,
.exchange-result strong { color: var(--ink); }
.exchange-source-lines { display: grid; gap: 8px; max-height: 300px; overflow: auto; padding-right: 3px; }
.exchange-source-line { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 10px; align-items: center; border: 1px solid var(--line); border-radius: 12px; padding: 12px; background: #fff; }
.exchange-source-line > div { display: grid; gap: 3px; }
.exchange-source-line > div:not(:first-child) { text-align: right; }
.exchange-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.exchange-actions { display: grid; grid-template-columns: 120px 1fr; gap: 8px; margin-top: 2px; }
.exchange-actions .ghost-button { color: #58615b; border-color: var(--line); justify-content: center; }
.exchange-actions .primary-button { width: auto; }
.exchange-empty { margin: 0; color: var(--soft); font-size: 12px; }
.exchange-modal .form-error { margin: 0; }

.exchange-replacement { display: grid; gap: 10px; border-top: 1px solid var(--line); padding-top: 14px; }
.exchange-replacement-head { display: flex; justify-content: space-between; align-items: end; gap: 12px; }
.exchange-replacement-head h3 { margin: 0; font-size: 18px; }
.exchange-replacement-head > strong { white-space: nowrap; font-size: 15px; }
.exchange-replacement-search { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: end; }
.exchange-replacement-search label { display: grid; gap: 6px; font-size: 11px; color: #667069; font-weight: 700; }
.exchange-replacement-search input { width: 100%; box-sizing: border-box; }
.exchange-replacement-results,
.exchange-replacement-cart { display: grid; gap: 7px; }
.exchange-replacement-results { max-height: 220px; overflow: auto; padding-right: 2px; }
.exchange-replacement-result,
.exchange-replacement-cart-line { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: center; border: 1px solid var(--line); border-radius: 11px; padding: 10px 11px; background: #fff; }
.exchange-replacement-result.unavailable { opacity: .55; }
.exchange-replacement-result > div,
.exchange-replacement-cart-line > div { display: grid; gap: 2px; min-width: 0; }
.exchange-replacement-result span,
.exchange-replacement-result small,
.exchange-replacement-cart-line span,
.exchange-replacement-cart-line small { color: var(--soft); font-size: 11px; }
.exchange-replacement-cart-line { grid-template-columns: minmax(0, 1fr) 112px 38px; }
.exchange-replacement-cart-line.prepared { grid-template-columns: minmax(0, 1fr) auto; background: #f7f8f7; }
.exchange-replacement-cart-line label { display: grid; gap: 4px; font-size: 10px; color: var(--soft); }
.exchange-replacement-cart-line input { width: 100%; box-sizing: border-box; }
.exchange-replacement-economics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; }
.exchange-replacement-economics > div { display: grid; gap: 3px; border: 1px solid var(--line); border-radius: 10px; padding: 9px 10px; background: #f4f6f4; }
.exchange-replacement-economics span { color: var(--soft); font-size: 10px; }
.exchange-replacement-economics strong { font-size: 13px; }
.exchange-replacement-actions { display: flex; justify-content: flex-end; gap: 8px; }
.exchange-replacement-actions .primary-button { width: auto; }

@media (max-width: 720px) {
  .exchange-modal { max-width: 100vw; width: 100vw; max-height: 100dvh; height: 100dvh; border-radius: 0; }
  .exchange-shell { padding: 18px 14px calc(18px + env(safe-area-inset-bottom)); max-height: 100dvh; height: 100%; overflow: auto; }
  .exchange-head h2 { font-size: 22px; }
  .exchange-lookup-form { grid-template-columns: 1fr; }
  .exchange-sale-summary { grid-template-columns: 1fr; }
  .exchange-source-lines { max-height: none; }
  .exchange-source-line { grid-template-columns: 1fr 1fr; }
  .exchange-source-line > div:first-child { grid-column: 1 / -1; }
  .exchange-source-line > div:not(:first-child) { text-align: left; }
  .exchange-fields { grid-template-columns: 1fr; }
  .exchange-actions { grid-template-columns: 96px 1fr; }
  .exchange-replacement-results { max-height: none; }
  .exchange-replacement-economics { grid-template-columns: 1fr; }
}

/* Exchange adds a third operational action. Keep phone headers compact while preserving
   accessible labels through each button's aria-label. */
@media (max-width: 560px) {
  .topbar { padding-left: 10px; padding-right: 10px; }
  .topbar .brand > div { display: none; }
  .topbar-actions { gap: 5px; min-width: 0; }
  .topbar .refund-entry,
  .topbar .exchange-entry,
  .topbar .return-entry {
    width: 40px;
    min-width: 40px;
    padding: 0;
    justify-content: center;
  }
  .topbar .refund-entry span:last-child,
  .topbar .exchange-entry span:last-child,
  .topbar .return-entry span:last-child { display: none; }
  #locationButton { min-width: 0; max-width: 110px; padding-left: 8px; padding-right: 8px; }
  #locationName { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .exchange-replacement-search { grid-template-columns: 1fr; }
  .exchange-replacement-cart-line { grid-template-columns: minmax(0, 1fr) 92px 38px; }
  .exchange-replacement-actions { display: grid; grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
  #locationButton { max-width: 75px; }
  .exchange-actions { grid-template-columns: 1fr; }
  .exchange-replacement-cart-line { grid-template-columns: 1fr 38px; }
  .exchange-replacement-cart-line label { grid-column: 1 / 2; }
}