/* Explanation workspace. Component behavior lives in ui/reader.jsx. */
:root { --xp-width: clamp(420px, 36vw, 560px); }
#modal.explain-panel {
  --reader-ink: #20242c;
  --reader-muted: #757b87;
  --reader-line: #eceef2;
  --reader-accent: #345cda;
  inset: 8px 8px 8px auto;
  font-family: var(--ui-font);
}
#modal.explain-panel .modal-box {
  background: #fff; border: 1px solid #e0e4eb; border-radius: 18px;
  box-shadow: 0 12px 40px #18243d0c, 0 2px 8px #18243d06;
  color: var(--reader-ink); overflow: hidden;
}
#modal.explain-panel .modal-header {
  padding: 19px 18px 17px 24px; gap: 16px;
  border-bottom: 1px solid var(--reader-line); background: #fff;
}
#modal.explain-panel .xp-title { gap: 4px; min-width: 0; }
#modal.explain-panel .modal-kind {
  color: var(--reader-muted); font: 500 11px/1.4 var(--ui-font);
  letter-spacing: .05em; text-transform: uppercase;
  border: 0; background: none; padding: 0; box-shadow: none; animation: none;
}
#modal.explain-panel .modal-ref {
  color: var(--reader-ink); font: 600 16px/1.45 var(--ui-font);
  font-style: normal; letter-spacing: -.025em;
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2;
  overflow: hidden; overflow-wrap: anywhere;
}
#modal.explain-panel .modal-header-actions { gap: 4px; align-self: flex-start; }
#modal.explain-panel .xp-btn {
  width: 32px; height: 32px; color: #7b8290; border-radius: 8px;
}
#modal.explain-panel .xp-btn:hover {
  background: #f2f4f8; color: #262c37; border-color: transparent;
}
#modal.explain-panel .xp-menu {
  width: 184px; padding: 5px; border-color: #e5e8ee;
  background: #fff; border-radius: 12px;
}
#modal.explain-panel .xp-menu button { color: #424956; padding: 10px 12px; }
#modal.explain-panel .xp-menu button:hover { background: #f4f5f8; }
#modal.explain-panel .xp-menu [data-close] { border-top: 1px solid var(--reader-line); border-radius: 0 0 7px 7px; }
.xp-scroll {
  flex: 1; min-height: 0; overflow: auto; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: #d7dbe3 transparent;
  scroll-padding: 20px; overflow-anchor: none;
}
.source-disclosure { margin: 22px 24px 0; }
.source-disclosure[hidden] { display: none; }
.source-disclosure.is-quote { padding-bottom: 20px; border-bottom: 1px solid var(--reader-line); }
.source-trigger {
  display: block; width: 100%; padding: 0; text-align: start; border: 0;
  background: none; color: var(--reader-muted); cursor: pointer;
  font-family: var(--ui-font); border-radius: 4px;
}
.source-trigger:active { scale: 1; }
.source-caption { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 11px; line-height: 20px; }
.source-action { display: inline-flex; align-items: center; gap: 4px; color: #677080; }
.source-action svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.5; transition: rotate 200ms var(--ui-ease); }
.source-trigger[data-panel-open] .source-action svg { rotate: 180deg; }
.source-trigger:hover .source-action { color: var(--reader-accent); }
.source-excerpt {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; margin-top: 10px; color: #545b68;
  font: 400 18px/1.7 'Frank Ruhl Libre', serif; text-align: start;
}
.source-panel {
  height: var(--collapsible-panel-height); overflow: hidden;
  transition: height 220ms var(--ui-ease), opacity 180ms ease;
}
.source-panel[data-starting-style], .source-panel[data-ending-style] { height: 0; opacity: 0; }
#modal.explain-panel .modal-source {
  margin: 0; padding: 12px 0 0; border: 0; border-radius: 0; background: none;
  max-height: none; overflow: visible;
}
#modal.explain-panel .modal-source .hebrew-text { font-size: 18px; line-height: 1.8; color: #545b68; }
.source-disclosure.is-context { margin-top: 18px; }
.source-disclosure.is-context .modal-source { padding: 0; }
#modal.explain-panel .modal-body {
  flex: none; overflow: visible; padding: 24px; min-height: 0;
  font: 400 15px/1.8 var(--ui-font); color: var(--reader-ink);
  mask-image: none; -webkit-mask-image: none;
}
#modal.explain-panel .modal-body h3 { display: block; font: 600 17px/1.5 var(--ui-font); letter-spacing: -.025em; margin: 24px 0 10px; }
#modal.explain-panel .modal-body h3:first-child { margin-top: 0; }
#modal.explain-panel .modal-body h3::after { display: none; }
#modal.explain-panel .modal-body h4 { font: 600 16px/1.5 var(--ui-font); letter-spacing: -.015em; margin: 24px 0 10px; }
#modal.explain-panel .md-content > :first-child { margin-top: 0; }
#modal.explain-panel .modal-body p { margin-bottom: 14px; }
#modal.explain-panel .modal-body a { color: var(--reader-accent); text-underline-offset: 3px; }
#modal.explain-panel .modal-body li::marker { color: #818998; }
#modal.explain-panel .turn-assistant { animation: none; }
#modal.explain-panel .turn-user {
  width: fit-content; max-width: 90%; margin: 24px 0 20px auto;
  padding: 10px 14px; border: 0; border-radius: 16px 16px 4px 16px;
  color: #3e485b; background: #f1f4f9; box-shadow: none; font-size: 14px;
}
#modal.explain-panel .xp-waiting { padding: 36px 0 44px; }
#modal.explain-panel .xp-waiting-label {
  display: flex; align-items: center; gap: 12px;
  color: var(--reader-muted); font: 400 13px/1.5 var(--ui-font);
}
pshat-loader { display: inline-flex; color: var(--reader-accent); width: 22px; height: 22px; flex-shrink: 0; }
#modal.explain-panel .stream-status { margin-top: 20px; color: #8a919e; font-size: 11px; }
#modal.explain-panel .tool-use-note { display: flex; align-items: center; gap: 8px; border: 0; padding: 8px 0; background: none; color: var(--reader-muted); font: 400 12px/1.5 var(--ui-font); }
#modal.explain-panel .tool-use-note pshat-loader { width: 18px; height: 18px; }
.xp-compose { flex-shrink: 0; padding: 10px 18px 18px; background: #fff; border-top: 1px solid var(--reader-line); }
.xp-compose-tools { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 12px; }
.xp-style-select { display: inline-flex; gap: 8px; align-items: center; padding-left: 4px; color: var(--reader-muted); font-size: 11px; }
#xp-styles {
  width: auto; max-width: 170px; min-height: 30px; border: 0; border-radius: 6px;
  padding: 4px 22px 4px 8px; background-color: #f6f7f9; color: #465166;
  font: 500 12px var(--ui-font); cursor: pointer;
}
#xp-styles:disabled { opacity: .6; cursor: wait; }
.xp-save-action { display: inline-flex; gap: 5px; align-items: center; min-height: 30px; padding: 4px 8px; background: none; border: 0; border-radius: 6px; color: #737c8c; font: 500 12px var(--ui-font); cursor: pointer; }
.xp-save-action svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.xp-save-action:hover { background: #f2f4f8; color: #345cda; }
.xp-save-action[aria-pressed="true"] { color: var(--reader-accent); }
.xp-save-action:disabled { opacity: .35; cursor: default; }
#modal.explain-panel .followup-form {
  margin: 0; padding: 5px; gap: 4px; align-items: flex-end;
  border: 1px solid #e0e4eb; border-radius: 14px; background: #f8f9fb;
}
#modal.explain-panel .followup-form:focus-within { background: #fff; border-color: #9aaee9; box-shadow: 0 0 0 3px #345cda0a; }
#modal.explain-panel #followup-input { padding: 10px 10px 11px; font: 400 14px/1.6 var(--ui-font); min-height: 42px; color: var(--reader-ink); }
#followup-input::placeholder { color: #9097a4; }
#modal.explain-panel #followup-send { width: 32px; height: 32px; margin: 5px; background: #345cda; color: white; border: 0; border-radius: 10px; box-shadow: none; flex-shrink: 0; }
#modal.explain-panel #followup-send:disabled { background: #e5e9f1; color: #a4aebe; opacity: 1; }
#modal.explain-panel #followup-send::after { display: none; }
#modal.explain-panel .xp-primary { background: #345cda; }
#modal.explain-panel .xp-offer { flex-shrink: 0; padding: 8px 22px; gap: 2px 12px; background: #f8faff; border-color: var(--reader-line); color: #6b7586; font: 400 11px/1.5 var(--ui-font); }
#modal.explain-panel .xp-offer button.offer-create { padding: 4px 0; border-radius: 3px; background: none; color: #345cda; font: 500 11px/1.5 var(--ui-font); }
#modal.explain-panel .turn-report { font-family: var(--ui-font); }
@media (min-width: 1200px) {
  #concepts-main { transition: margin-right 220ms var(--ui-ease); }
  body.xp-open #concepts-main { margin-right: calc(var(--xp-width) + 24px); }
}
@media (max-width: 900px) {
  #modal.explain-panel { inset: 0; }
  #modal.explain-panel .modal-box { height: min(94dvh, calc(var(--vvh, 100dvh) - 12px)); border-radius: 20px 20px 0 0; border-bottom: 0; }
  #modal.explain-panel .modal-header { padding: 24px 16px 14px 20px; }
  #modal.explain-panel .xp-btn { width: 38px; height: 38px; }
  #modal.explain-panel .modal-minimize svg { rotate: 90deg; }
  .source-disclosure { margin: 20px 20px 0; }
  #modal.explain-panel .modal-body { padding: 22px 20px; }
  .xp-compose { padding: 10px 14px max(14px, env(safe-area-inset-bottom)); }
  #modal.explain-panel #followup-input { font-size: 16px; }
  #xp-styles { font-size: 16px; max-width: 180px; }
  .xp-save-action { min-height: 36px; }
  html.kb-open #modal .source-disclosure, html.kb-open #modal .xp-compose-tools, html.kb-open #modal .xp-offer { display: none; }
  html.kb-open #modal.explain-panel .followup-form { margin-bottom: 0; }
}
@media (max-width: 900px) and (max-height: 500px) {
  #modal.explain-panel .modal-box { height: auto; border-radius: 18px 0 0 18px; border-bottom: 1px solid var(--reader-line); }
  #modal.explain-panel .modal-header { padding-top: 12px; padding-bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .source-panel, .source-action svg, #concepts-main { transition: none; }
}