/* Desk controls only: the existing Changes paper and comparison stay untouched. */
.cr-review { font-family: var(--ui); font-size: var(--t-sm); color: var(--ink); }
.cr-tools { position: fixed; z-index: 35; top: 54px; right: 18px; display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 5px; max-width: calc(100vw - 36px); }
.cr-tools > form, .cr-dock > form { margin: 0; }
.cr-tools .btn, .cr-dock .btn { border-radius: 16px; }
.cr-status { color: var(--ink-3); padding: 5px; }
.cr-close { font-size: 21px; line-height: 1; min-width: 32px; }
.cr-popover { position: relative; }
.cr-popover > summary { list-style: none; cursor: pointer; }
.cr-popover > summary::-webkit-details-marker { display: none; }
.cr-popover[open] > summary { background: var(--sunken); }
.cr-panel { position: absolute; z-index: 1; top: calc(100% + 8px); right: 0; width: min(370px, calc(100vw - 36px)); max-height: min(65vh, 600px); overflow: auto; overscroll-behavior: contain; padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 28px #0002; line-height: 1.5; overflow-wrap: anywhere; }
.cr-panel p { margin: 0 0 10px; white-space: pre-wrap; }
.cr-panel p:last-child { margin-bottom: 0; }
.cr-panel ul, .cr-panel ol { padding-left: 20px; }
.cr-panel li { margin-block: 8px; }
.cr-panel form { display: grid; gap: 7px; margin-block: 10px; }
.cr-panel input:not([type=hidden]), .cr-panel textarea, .cr-panel select { width: 100%; min-width: 0; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); font: inherit; }
.cr-panel textarea { resize: vertical; }
.cr-panel form .btn { justify-self: start; }
.cr-panel blockquote { font-family: var(--prose); margin: 9px 0; padding-left: 10px; border-left: 2px solid var(--line); }
.cr-panel cite, .cr-panel small { font-family: var(--ui); display: block; color: var(--ink-3); }
.cr-entry, .cr-finding { padding-block: 10px; border-bottom: 1px solid var(--line); }
.cr-finding > summary { cursor: pointer; font-weight: 550; }
.cr-panel .ep-button, .cr-panel .ep-decision-options button { cursor: pointer; padding: 6px 10px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); font: inherit; }
.cr-panel .debate-options button { display: flex; gap: 8px; }
.cr-panel .thread { list-style: none; padding: 0; }
.cr-dock, .change-submit { position: fixed; z-index: 36; right: 18px; bottom: max(18px, env(safe-area-inset-bottom)); display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 8px; max-width: calc(100vw - 36px); padding: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 22px; box-shadow: 0 3px 16px #0001; }
.cr-dock { justify-content: center; border: 2px solid var(--ink-3); box-shadow: 0 4px 20px #0003, 0 0 0 3px var(--surface); }
.cr-dock .btn { display: inline-flex; align-items: center; justify-content: center; min-height: 32px; }
.cr-dock:empty { display: none; }
.cr-dock .cr-panel { top: auto; bottom: calc(100% + 12px); }
.cr-finish-reason { flex-basis: 100%; text-align: center; color: var(--ink-2); font-size: var(--t-xs); max-width: 310px; }
.cr-error { color: var(--danger); max-width: 320px; margin: 4px; white-space: normal; }
.cr-tools > form:has(.cr-error) { max-width: 260px; padding: 8px; background: var(--surface); border-radius: 12px; }
@media (max-width: 650px) {
  .cr-tools { top: 54px; right: 10px; max-width: calc(100vw - 20px); gap: 2px; flex-wrap: nowrap; }
  .cr-tools .btn { padding: 5px 8px; font-size: var(--t-xs); }
  .cr-panel { position: fixed; top: 94px; right: 10px; width: calc(100vw - 20px); max-height: calc(100dvh - 250px); }
  .cr-dock .cr-panel { top: auto; bottom: 105px; }
  .cr-dock, .change-submit { right: 10px; max-width: calc(100vw - 20px); }
}
@media print { .cr-review, .change-submit { display: none; } }
body:has([data-change-review]) .comparison-tabs nav { max-height: 112px; overflow-y: auto; }
@media (max-width: 650px) { body:has([data-change-review]) .comparison-tabs nav { max-height: 96px; } }
/* Changes shares one compact desk row for layout and review controls. */
@media (min-width: 651px) {
  .desk:has(#mode[data-mode="changes"]) { --desk-top: 12px; }
  .cr-tools { top: calc(var(--topbar-h) + 8px); }
}

.comparison-header { display: flex; align-items: flex-start; gap: 12px; min-width: 0; margin-bottom: 8px; grid-row: 1; }
.paper:has(.compare) .comparison-header .view-switch { flex: none; align-items: center; margin: 0; }
.comparison-header .view-switch a { display: grid; place-items: center; width: 32px; height: 28px; padding: 3px; }
.comparison-header .comparison-tabs { flex: 1; min-width: 0; padding: 0; margin: 0; border: 0; background: none; }
.comparison-header .comparison-tabs nav { margin-top: 0; gap: 4px 16px; }
.comparison-header .comparison-tabs a { padding: 2px 0; gap: 1px; }
.cr-activity { margin: -16px -16px 12px; }
.cr-activity > summary { display: flex; align-items: center; justify-content: space-between; min-height: 32px; padding: 6px 16px; cursor: pointer; list-style: none; background: color-mix(in srgb, var(--focus) 12%, var(--surface)); color: var(--ink-2); font-weight: 550; }
.cr-activity > summary::-webkit-details-marker { display: none; }
.cr-activity > summary::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); }
.cr-activity[open] > summary::after { transform: rotate(225deg); }
.cr-activity > summary:hover { background: color-mix(in srgb, var(--focus) 18%, var(--surface)); }
.cr-activity-content { padding: 12px 16px; border-bottom: 1px solid var(--line); }

@media (min-width: 651px) {
  body:has([data-change-review]) .comparison-header:has(.comparison-tabs nav) { padding-right: 410px; }
}
@media (max-width: 650px) {
  body:has([data-change-review]) .comparison-header:has(.comparison-tabs nav) { flex-wrap: wrap; padding-top: 40px; }
  body:has([data-change-review]) .comparison-header .comparison-tabs { flex-basis: 100%; }
}

.cr-thread-toggle { border: 0; padding: 4px 0; background: none; color: var(--ink-2); font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.cr-change-panel { position: fixed; z-index: 50; width: min(370px, calc(100vw - 24px)); max-height: calc(100dvh - 120px); border: 2px solid var(--ink-3); }
.cr-change-panel[hidden] { display: none; }
.cr-change-panel > header { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.cr-change-comparison del { color: var(--danger); }
.cr-change-comparison ins { color: var(--ok); }
.cr-thread-reply { margin: 12px 0 0 12px; padding-left: 10px; border-left: 2px solid var(--line); }
@media (max-width: 700px) { .cr-change-panel { bottom: 100px; max-height: 48dvh; width: calc(100vw - 20px); } }
@media print { .cr-change-panel { display: none; } }

.cr-panel .cr-sign-in { margin: 12px 0 2px; padding: 10px 0 4px; clear: both; }
[data-compact-comment] button[type=submit][hidden] { display: none; }
.cr-panel [data-compact-comment] { margin-block: 8px; gap: 4px; }
.cr-panel [data-compact-comment] textarea { min-height: 32px; padding: 6px 8px; line-height: 18px; resize: none; }

.cr-left-tools { position: fixed; z-index: 36; top: calc(var(--topbar-h, 48px) + 8px); left: 16px; }
.cr-panel-switch { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 224px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--e1); overflow: hidden; }
.cr-panel-switch button { border: 0; border-radius: 0; margin: 0; padding: 7px 10px; background: transparent; color: var(--ink); font: 600 13px/18px var(--ui); cursor: pointer; }
.cr-panel-switch button + button { border-left: 1px solid var(--line); }
.cr-panel-switch button:hover { background: var(--sunken); }
.cr-panel-switch button[aria-pressed="true"] { background: #181818; color: #fff; }
.cr-panel-switch button:focus-visible { outline: 2px solid var(--ink); outline-offset: -4px; }
.cr-left-tools > details > summary { display: none; }
.cr-left-tools .cr-panel { left: 0; right: auto; box-sizing: border-box; }
@media (max-width: 650px) {
  .cr-left-tools { left: 8px; }
  .cr-panel-switch { width: 190px; }
  .cr-tools { top: calc(var(--topbar-h, 48px) + 48px); }
  .cr-left-tools .cr-panel { left: 8px; top: calc(var(--topbar-h, 48px) + 88px); }
  body:has([data-change-review]) .comparison-header { min-height: 74px; }
}
@media print { .cr-left-tools { display: none; } }