:root {
  --bg: #f5f0e8;
  --panel: #fffaf1;
  --panel-2: #fbf4e7;
  --text: #1f2220;
  --muted: #6d6a61;
  --line: #ded3bf;
  --brand: #d46f2c;
  --brand-2: #f0b15f;
  --blue: #bfe4ff;
  --blue-border: #4a9ad4;
  --token-new-bg: rgba(191, 228, 255, 1);
  --token-level1-bg: rgba(255, 208, 138, 1);
  --token-level2-bg: rgba(255, 227, 155, 1);
  --token-level3-bg: rgba(214, 243, 197, 1);
  --token-level4-bg: rgba(255, 255, 255, 0);
  --pdf-token-new-bg: rgba(191, 228, 255, 0.42);
  --pdf-token-level1-bg: rgba(255, 208, 138, 0.42);
  --pdf-token-level2-bg: rgba(255, 227, 155, 0.42);
  --pdf-token-level3-bg: rgba(214, 243, 197, 0.42);
  --pdf-token-level4-bg: rgba(255, 255, 255, 0);
  --yellow: #ffe39b;
  --yellow-border: #d19a00;
  --level1: #ffd08a;
  --level1-border: #d97706;
  --level2: #ffe39b;
  --level2-border: #d19a00;
  --level3: #d6f3c5;
  --level3-border: #55a45a;
  --level4: transparent;
  --level4-border: transparent;
  --known: transparent;
  --ignored: #ece7dc;
  --danger: #b84545;
  --success: #39845a;
  --shadow: 0 18px 50px rgba(31, 34, 32, 0.09);
  color-scheme: light;
}

body.dark {
  --bg: #111413;
  --panel: #1a1f1d;
  --panel-2: #202824;
  --text: #f3efe8;
  --muted: #b8b0a3;
  --line: #354039;
  --known: transparent;
  --ignored: #171b19;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(212,111,44,0.14), transparent 30%), var(--bg);
  color: var(--text);
}
button, input, select, textarea { font: inherit; }
button, .file-btn {
  border: 0;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #20140a;
  padding: 0.78rem 1rem;
  border-radius: 14px;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(212,111,44,0.18);
}
button:hover, .file-btn:hover { transform: translateY(-1px); }
button.ghost, .file-btn.ghost {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}
button.danger { color: var(--danger); }
button.success { color: var(--success); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  padding: 0.8rem 0.9rem;
  border-radius: 14px;
  outline: none;
}
textarea { resize: vertical; }
label { display: grid; gap: 0.4rem; font-weight: 700; color: var(--text); }
.field-label { margin-top: 1.1rem; margin-bottom: 0.4rem; }
.file-btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.app-shell { display: grid; grid-template-columns: 310px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  position: sticky; top: 0.5rem; height: 100vh; overflow: auto;
  padding: 1.2rem;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  backdrop-filter: blur(18px);
}
.brand { display: flex; gap: 0.85rem; align-items: center; }
.brand-mark {
  display: grid; place-items: center;
  width: 54px; height: 54px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  font-size: 2rem; font-weight: 900; color: #281405;
}
.brand h1 { margin: 0; font-size: 1.25rem; }
.brand p, .muted { color: var(--muted); margin: 0.2rem 0 0; }
.main-nav { display: grid; gap: 0.55rem; margin: 1.2rem 0; }
.nav-btn { text-align: left; background: transparent; color: var(--text); box-shadow: none; border: 1px solid transparent; }
.nav-btn.active { background: var(--panel-2); border-color: var(--line); }
.goal-card, .avatar-card {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1rem;
  margin-top: 1rem;
}
.goal-row { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.goal-row.small { font-size: 0.82rem; color: var(--muted); margin-top: 0.5rem; }
progress { width: 100%; accent-color: var(--brand); margin-top: 0.65rem; }
.avatar-card { display: flex; align-items: center; gap: 1rem; }
.avatar { font-size: 2.2rem; width: 3.4rem; height: 3.4rem; display: grid; place-items: center; border-radius: 50%; background: var(--panel); }
.avatar-card p { margin: 0.2rem 0 0; color: var(--muted); }
.workspace { padding: 1.2rem; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; }
.topbar h2 { margin: 0; font-size: clamp(1.6rem, 3vw, 2.4rem); }
.top-actions, .row, .toolbar-row { display: flex; gap: 0.65rem; align-items: center; }
.wrap { flex-wrap: wrap; }
.view { display: none; }
.view.active { display: block; }
.panel-grid { display: grid; gap: 1rem; }
.panel-grid.two { grid-template-columns: minmax(0, 1fr) minmax(360px, 0.75fr); }
.panel-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel {
  background: color-mix(in srgb, var(--panel) 95%, transparent);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1rem;
  box-shadow: var(--shadow);
}
.panel h3 { margin-top: 0; }
form.panel { display: grid; gap: 0.9rem; }
.lesson-list, .card-list, .course-list, .activity-log { display: grid; gap: 0.6rem; }
.lesson-item, .course-item, .card-item {
  display: grid; gap: 0.25rem;
  width: 100%; text-align: left;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}
.lesson-item.active { outline: 3px solid color-mix(in srgb, var(--brand) 40%, transparent); }
.lesson-item span, .lesson-item small, .course-item p, .card-item small { color: var(--muted); }
.reader-layout { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 1rem; align-items: start; }
.reader-toolbar { display: flex; justify-content: space-between; gap: 1rem; align-items: start; }
.reader-controls { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; padding: 0.75rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0.8rem 0; }
.reader-controls label { min-width: 150px; font-size: 0.9rem; }
.batch-tool-label { min-width: 160px; font-size: 0.82rem; }
.batch-tool-label select { padding: 0.52rem 0.65rem; border-radius: 12px; }
.highlight-settings { min-width: 100%; border: 1px solid var(--line); border-radius: 16px; padding: 0.65rem; background: color-mix(in srgb, var(--panel-2) 75%, transparent); }
.highlight-settings summary { cursor: pointer; font-weight: 800; }
.highlight-grid { display: grid; gap: 0.55rem; margin-top: 0.65rem; }
.highlight-grid label { min-width: 0; font-size: 0.82rem; }
.highlight-grid input[type="color"] { padding: 0.25rem; height: 42px; }
.highlight-grid-detailed { overflow-x: auto; }
.highlight-row { display: grid; grid-template-columns: minmax(105px, 1fr) 72px minmax(120px, 1fr) minmax(120px, 1fr); gap: 0.55rem; align-items: center; min-width: 520px; }
.highlight-row strong, .highlight-row span { font-size: 0.82rem; }
.highlight-row input[type="range"] { padding-left: 0; padding-right: 0; }
.reader-text {
  min-height: 48vh;
  border-radius: 20px;
  padding: 1.1rem;
  line-height: 1.55;
  font-size: 22px;
  outline: none;
}
.reader-text.theme-paper { background: #fffaf0; color: #201f1c; }
.reader-text.theme-cream { background: #f2dfbd; color: #271a10; }
.reader-text.theme-midnight { background: #111827; color: #f9fafb; }
.reader-text.theme-forest { background: #16241d; color: #f1f6ed; }
.token { display: inline; padding: 0.08em 0.12em; margin: 0 0.02em; border-radius: 0.28em; cursor: pointer; transition: 0.12s ease; }
.token:hover { outline: 2px solid var(--brand); }
.token.new { background: var(--token-new-bg); color: #102334; border-bottom: 2px solid var(--blue-border); }
.token.learning, .token.level1 { background: var(--token-level1-bg); color: #2c1803; border-bottom: 2px solid var(--level1-border); }
.token.level2 { background: var(--token-level2-bg); color: #281f07; border-bottom: 2px solid var(--level2-border); }
.token.level3 { background: var(--token-level3-bg); color: #0e2a15; border-bottom: 2px solid var(--level3-border); }
.token.known, .token.level4 { background: var(--token-level4-bg); color: inherit; border-bottom: 0; }
.token.ignored { background: transparent; color: inherit; opacity: 1; border-bottom: 0; }
.token.selected { outline: 3px solid var(--brand); }
.reader-text.fade-known .token.known, .reader-text.fade-known .token.level4 { opacity: 0.72; }
.sentence { border-radius: 0.35em; }
.sentence.active-sentence { background: color-mix(in srgb, var(--brand) 18%, transparent); }
.sentence-break { display: block; margin-bottom: 0.45rem; }
.audio-box { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); display: grid; gap: 0.6rem; }
audio { width: 100%; }
.word-panel { position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow: auto; }
.empty-state { color: var(--muted); border: 1px dashed var(--line); border-radius: 18px; padding: 1rem; }
.hidden { display: none !important; }
.selected-word { font-size: 2rem; font-weight: 900; margin-bottom: 0.7rem; overflow-wrap: anywhere; }
.status-pills { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0.4rem; margin-bottom: 0.45rem; }
.status-btn { box-shadow: none; padding: 0.55rem 0.4rem; }
.status-btn.new { background: var(--blue); }
.status-btn.learning, .status-btn.level1 { background: var(--level1); color: #2c1803; }
.status-btn.level2 { background: var(--level2); color: #281f07; }
.status-btn.level3 { background: var(--level3); color: #0e2a15; }
.status-btn.known, .status-btn.level4 { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); }
.status-btn.ignored { background: var(--ignored); color: var(--muted); }
.status-btn.active { outline: 3px solid color-mix(in srgb, var(--brand) 60%, transparent); }
.word-panel label { margin-top: 0.8rem; }
.dict-links { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0.8rem 0; }
.dict-links a { color: var(--text); background: var(--panel-2); border: 1px solid var(--line); padding: 0.45rem 0.65rem; border-radius: 999px; text-decoration: none; font-size: 0.9rem; }
.sentence-box { background: var(--panel-2); border: 1px solid var(--line); border-radius: 16px; padding: 0.85rem; }
.morph-tree { overflow: auto; background: var(--panel-2); border: 1px solid var(--line); border-radius: 16px; min-height: 130px; padding: 0.5rem; }
.flashcard { display: grid; gap: 1rem; }
.card-face { min-height: 130px; display: grid; place-items: center; text-align: center; background: var(--panel-2); border: 1px solid var(--line); border-radius: 20px; padding: 1.5rem; font-size: 1.4rem; }
.stat { display: grid; gap: 0.5rem; }
.stat span { color: var(--muted); }
.stat strong { font-size: 2rem; }
.bars { display: grid; gap: 0.65rem; }
.bar-row { display: grid; grid-template-columns: 160px 1fr 60px; gap: 0.75rem; align-items: center; }
.bar { height: 14px; border-radius: 999px; background: var(--panel-2); overflow: hidden; border: 1px solid var(--line); }
.bar > div { height: 100%; background: linear-gradient(90deg, var(--brand), var(--brand-2)); }
.activity-item { padding: 0.65rem; border-radius: 14px; background: var(--panel-2); border: 1px solid var(--line); }
.small-list { color: var(--muted); line-height: 1.7; }
.course-item { padding: 1rem; }
.course-item h4 { margin: 0; }
.course-item p { margin: 0.2rem 0 0.75rem; }

@media (max-width: 1120px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .main-nav { grid-template-columns: repeat(3, 1fr); }
  .reader-layout, .panel-grid.two { grid-template-columns: 1fr; }
  .word-panel { position: relative; top: auto; max-height: none; }
}
@media (max-width: 720px) {
  .topbar, .reader-toolbar { flex-direction: column; align-items: stretch; }
  .panel-grid.three { grid-template-columns: 1fr; }
  .main-nav { grid-template-columns: 1fr 1fr; }
  .top-actions { flex-wrap: wrap; }
}

/* Added importer, popup, and iframe helpers */
.youtube-import-box, .iframe-panel {
  border: 1px solid var(--line);
  background: var(--panel-2);
  border-radius: 18px;
  padding: 0.85rem;
  display: grid;
  gap: 0.7rem;
}
.youtube-import-box h4 { margin: 0; }
.youtube-embed {
  min-height: 120px;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.youtube-embed iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 16px;
  background: #000;
}
.inline-check {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 0.65rem;
}
.inline-check input { width: auto; }
.iframe-panel { margin: 0.85rem 0; }
.iframe-tabs button, .popup-actions button { padding: 0.52rem 0.65rem; border-radius: 12px; }
.small-note { font-size: 0.82rem; line-height: 1.45; }
#dictFrame {
  width: 100%;
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
}
.word-popup {
  position: absolute;
  z-index: 50;
  width: min(330px, calc(100vw - 24px));
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 0.75rem;
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.22);
}
.word-popup-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}
.word-popup-head strong { font-size: 1.3rem; overflow-wrap: anywhere; }
.word-popup-head button { padding: 0.35rem 0.55rem; border-radius: 10px; }
.popup-translation {
  margin: 0.65rem 0 0.25rem;
  padding: 0.7rem;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.popup-source { font-size: 0.82rem; }
.popup-actions { margin-top: 0.65rem; }
.reader-video {
  margin: 0.85rem 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #000;
}
.reader-video iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
}

.lesson-text-editor {
  margin: 0.85rem 0;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-2);
  display: grid;
  gap: 0.75rem;
}
.lesson-text-editor textarea {
  width: 100%;
  min-height: 48vh;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  line-height: 1.55;
}

.pdf-original-viewer {
  display: grid;
  gap: 1rem;
  max-height: 86vh;
  overflow: auto;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel-2);
}
.pdf-original-viewer.hidden { display: none !important; }
.pdf-page {
  position: relative;
  margin: 0 auto;
  background: white;
  box-shadow: 0 12px 34px rgba(0,0,0,0.18);
  overflow: hidden;
}
.pdf-page canvas,
.pdf-canvas { display: block; width: 100%; height: auto; position: relative; z-index: 1; }
.pdf-text-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 2;
  line-height: 1;
  text-align: initial;
  pointer-events: auto;
  transform-origin: 0 0;
}
.pdf-text-layer > span,
.pdf-text-layer > div {
  position: absolute;
  white-space: pre;
  transform-origin: 0% 0%;
  color: transparent;
  cursor: text;
  pointer-events: auto;
}
.pdf-text-item { color: transparent; line-height: 1; }
.pdf-text-item .token {
  color: transparent;
  border-radius: 0.13em;
  padding: 0 0.015em;
  margin: 0;
  cursor: pointer;
  pointer-events: auto;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.pdf-text-item .punct { color: transparent; }
.pdf-text-item .token.new { background: var(--pdf-token-new-bg); border-bottom: 0; }
.pdf-text-item .token.level1, .pdf-text-item .token.learning { background: var(--pdf-token-level1-bg); border-bottom: 0; }
.pdf-text-item .token.level2 { background: var(--pdf-token-level2-bg); border-bottom: 0; }
.pdf-text-item .token.level3 { background: var(--pdf-token-level3-bg); border-bottom: 0; }
.pdf-text-item .token.level4, .pdf-text-item .token.known { background: var(--pdf-token-level4-bg); border-bottom: 0; }
.pdf-text-item .token.selected,
.pdf-text-item .token:hover { color: transparent; background: transparent; outline: 2px solid var(--brand); outline-offset: 1px; }
.pdf-status { text-align: center; color: var(--muted); padding: 1rem; }

.panel-title-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
}
.panel-title-row h3 { margin-top: 0; }
.wide-panel { grid-column: 1 / -1; }
.review-mode-panel { overflow: hidden; }
.match-progress {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0.75rem 0 1rem;
}
.match-progress progress {
  flex: 1;
  height: 8px;
}
.match-progress span {
  font-weight: 800;
  color: var(--brand);
  background: color-mix(in srgb, var(--brand) 12%, transparent);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}
.match-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}
.match-card {
  min-height: 76px;
  padding: 1rem;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text);
}
.match-card.selected {
  outline: 3px solid color-mix(in srgb, var(--brand) 55%, transparent);
  transform: translateY(-1px);
}
.match-card.matched {
  opacity: 0.45;
  pointer-events: none;
  text-decoration: line-through;
}
code {
  background: var(--panel-2);
  padding: 0.1rem 0.25rem;
  border-radius: 6px;
}
@media (max-width: 760px) {
  .match-grid { grid-template-columns: 1fr; }
  .panel-title-row { flex-direction: column; }
}
.popup-actions button.active { outline: 3px solid color-mix(in srgb, var(--brand) 55%, transparent); }


/* SRS editing and grammar study */
.srs-tools select,
.srs-tools input { min-width: 180px; }
.editable-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem;
}
.editable-card em {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.88rem;
}
.card-actions button { padding: 0.45rem 0.6rem; border-radius: 10px; }
.card-lang-heading {
  margin-top: 0.45rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--brand) 11%, transparent);
  color: var(--brand);
  font-weight: 800;
  width: fit-content;
}
.srs-edit-panel {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-2);
  padding: 1rem;
  margin: 0.8rem 0;
  display: grid;
  gap: 0.8rem;
}
.srs-edit-panel h4 { margin: 0; }
.edit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}
.grammar-study-panel .grammar-card {
  margin-top: 0.75rem;
  min-height: 110px;
  place-items: center;
}
.grammar-card p { max-width: 760px; }
@media (max-width: 900px) {
  .editable-card { grid-template-columns: 1fr; }
  .edit-grid { grid-template-columns: 1fr; }
}

body.batch-marking #readerText, body.batch-marking #pdfOriginalViewer { cursor: crosshair; }
body.batch-marking .token:hover { outline: 3px solid var(--success); }
.pdf-controls {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  box-shadow: var(--shadow);
}
.pdf-controls span { font-weight: 800; }
.pdf-controls label { display: flex; align-items: center; gap: 0.4rem; font-size: 0.82rem; }
.pdf-controls input, .pdf-controls select { width: auto; padding: 0.45rem 0.55rem; border-radius: 10px; }
.pdf-controls .pdf-status { padding: 0; margin-left: auto; }


.ai-context-box {
  margin: 0.65rem 0 0.8rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--brand-2) 13%, var(--panel));
  line-height: 1.45;
  white-space: pre-wrap;
}

.achievement-card {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(160px, 0.8fr) auto;
  align-items: center;
  gap: 0.9rem;
  margin: 0.85rem 0;
  padding: 0.85rem 1rem;
  border: 1px solid color-mix(in srgb, var(--brand) 35%, var(--line));
  border-radius: 18px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--brand-2) 22%, var(--panel)), var(--panel));
  box-shadow: var(--shadow);
}
.achievement-card p { margin: 0.18rem 0 0; color: var(--muted); font-size: 0.9rem; }
.achievement-card progress { width: 100%; height: 0.7rem; }
.achievement-card span { font-weight: 800; color: var(--brand); }

.achievement-toast {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 1000;
  display: grid;
  gap: 0.25rem;
  min-width: min(360px, calc(100vw - 2rem));
  padding: 1rem 1.1rem;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--brand) 50%, var(--line));
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0,0,0,0.28);
  animation: toastPop 0.28s ease-out;
}
.achievement-toast strong { font-size: 1.05rem; }
.achievement-toast span { color: var(--muted); }
.achievement-toast .confetti { letter-spacing: 0.3rem; color: var(--brand); font-size: 1.2rem; }
@keyframes toastPop { from { transform: translateY(12px) scale(0.96); opacity: 0; } to { transform: translateY(0) scale(1); opacity: 1; } }

.pdf-controls-outside {
  position: sticky;
  top: 0.5rem;
  margin: 0.75rem 0;
}
.pdf-original-viewer {
  min-height: 78vh;
}
.pdf-text-item .token.ignored { background: transparent; outline: 0; }

@media (max-width: 760px) {
  .achievement-card { grid-template-columns: 1fr; }
  .pdf-original-viewer { max-height: 82vh; }
}

/* Hostinger/PWA refresh: stable toolbars, filters, SRS, story export */
.lesson-filter-toolbar { flex-wrap: wrap; align-items: stretch; }
.lesson-filter-toolbar input { min-width: 220px; flex: 1 1 240px; }
.lesson-filter-toolbar select { flex: 0 1 190px; }
.reader-toolbar { flex-wrap: wrap; }
.reader-toolbar > .row { flex: 1 1 520px; justify-content: flex-end; }
.reader-toolbar button, .reader-toolbar .file-btn, .reader-toolbar .lesson-language-chip { flex: 0 1 auto; white-space: nowrap; }
.lesson-language-chip { display: inline-flex; align-items: center; gap: .4rem; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: 14px; background: var(--panel-2); font-size: .82rem; }
.lesson-language-chip select { max-width: 190px; padding: .45rem .55rem; }
.reader-title-edit { display: flex; gap: .5rem; margin-top: .5rem; align-items: center; }
.reader-title-edit input { min-width: min(420px, 70vw); }
.reader-text.theme-black { background: #050505; color: #f6f1e8; }
.reader-text.theme-slate { background: #0b1120; color: #e5e7eb; }
.srs-settings { margin: .75rem 0; border: 1px solid var(--line); border-radius: 16px; padding: .75rem; background: var(--panel-2); }
.srs-settings summary { cursor: pointer; font-weight: 800; }
.srs-settings-grid { display: grid; gap: .65rem; grid-template-columns: repeat(3, minmax(0,1fr)); margin: .7rem 0; }
.srs-calendar { display: grid; grid-template-columns: repeat(7, minmax(0,1fr)); gap: .4rem; }
.srs-day { border: 1px solid var(--line); border-radius: 14px; padding: .45rem; background: var(--panel); text-align: center; display: grid; gap: .12rem; }
.srs-day.today { outline: 2px solid var(--brand); }
.srs-day strong { font-size: .7rem; color: var(--muted); }
.srs-day span { font-weight: 900; }
.srs-day em { font-style: normal; font-size: .8rem; color: var(--brand-2); }
.anki-card, .anki-card-back { display: grid; gap: .65rem; max-width: 560px; margin: 0 auto; }
.anki-card small { color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.anki-card strong { font-size: clamp(1.8rem, 4vw, 3rem); }
.anki-card p, .anki-card-back p { margin: 0; line-height: 1.45; }
.story-canvas { width: min(280px, 100%); border-radius: 16px; border: 1px solid var(--line); }
.custom-language-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .5rem; }
.achievement-card strong::before { content: '🧗 '; }
@media (max-width: 900px) { .srs-settings-grid, .custom-language-grid { grid-template-columns: 1fr; } .reader-toolbar > .row { justify-content: flex-start; } }

/* TTS and custom dictionary controls */
.tts-chip, .lesson-language-chip { display: inline-flex; align-items: center; gap: .35rem; min-width: max-content; }
.tts-chip select { max-width: 180px; }
.custom-frame-grid { display: grid; grid-template-columns: 1fr 1.4fr 1fr auto auto; gap: .55rem; align-items: center; margin: .75rem 0; }
.custom-frame-grid input, .custom-frame-grid select { min-width: 0; }
.custom-frame-list { display: grid; gap: .5rem; margin: .5rem 0 1rem; }
.custom-frame-item { display: grid; grid-template-columns: minmax(90px, .7fr) minmax(80px, .8fr) 1.5fr auto auto; gap: .45rem; align-items: center; padding: .55rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--panel-soft, rgba(255,255,255,.45)); }
.custom-frame-item code { overflow-wrap: anywhere; font-size: .78rem; }
.custom-frame-buttons { display: inline-flex; }
@media (max-width: 900px) {
  .custom-frame-grid, .custom-frame-item { grid-template-columns: 1fr; }
}

/* Final Hostinger patch: RTL reading, resizable layout, simplified SRS batches */
:root {
  --reader-main-pct: 62%;
  --dict-panel-width: 380px;
}
.sidebar-toggle {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 12px;
  flex: 0 0 auto;
}
body.sidebar-collapsed .app-shell { grid-template-columns: 78px minmax(0, 1fr); }
body.sidebar-collapsed .sidebar { padding: .75rem .45rem; overflow: visible; }
body.sidebar-collapsed .brand h1,
body.sidebar-collapsed .brand p,
body.sidebar-collapsed .field-label,
body.sidebar-collapsed #languageSelect,
body.sidebar-collapsed .goal-card,
body.sidebar-collapsed .avatar-card,
body.sidebar-collapsed .nav-btn { font-size: 0; padding-left: .5rem; padding-right: .5rem; }
body.sidebar-collapsed .main-nav .nav-btn::first-letter { font-size: 1rem; }
.reader-layout { grid-template-columns: minmax(0, var(--reader-main-pct)) minmax(280px, var(--dict-panel-width)); }
.word-panel { resize: horizontal; min-width: 280px; max-width: 720px; direction: ltr; }
.word-panel[dir="rtl"], .word-panel .rtl-text { direction: rtl; text-align: right; }
.reader-text.rtl-text, .pdf-original-viewer.rtl-text { direction: rtl; text-align: right; unicode-bidi: plaintext; }
.reader-text.rtl-text .token, .pdf-original-viewer.rtl-text .token { unicode-bidi: isolate; }
.bible-meta-grid { display: grid; grid-template-columns: minmax(0, 1fr) 120px; gap: .6rem; }
.bible-chip input { width: 110px; padding: .45rem .55rem; border-radius: 10px; }
.srs-due-buckets { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .55rem; margin: .75rem 0; }
.srs-bucket { display: grid; place-items: center; gap: .1rem; padding: .75rem .45rem; border: 1px solid var(--line); background: var(--panel-2); border-radius: 16px; text-align: center; }
.srs-bucket span { font-size: 1.4rem; }
.srs-bucket strong { font-size: 1.45rem; }
.srs-bucket em { font-style: normal; color: var(--muted); font-size: .75rem; }
.flashcard { border: 1px solid var(--line); border-radius: 24px; padding: .85rem; background: linear-gradient(180deg, color-mix(in srgb, var(--panel-2) 80%, transparent), var(--panel)); }
.anki-card.cloze-card p { font-size: clamp(1.3rem, 2.6vw, 2rem); line-height: 1.65; }
.big-card-word { font-size: clamp(2rem, 5vw, 4rem) !important; }
.card-list { max-height: 620px; overflow: auto; padding-right: .25rem; }
#srsPageLabel { align-self: center; min-width: 86px; text-align: center; }
#dictFrame { min-height: 430px; resize: vertical; overflow: auto; }
@media (max-width: 1120px) {
  body.sidebar-collapsed .app-shell, .app-shell { grid-template-columns: 1fr; }
  body.sidebar-collapsed .sidebar { padding: .8rem; }
  .reader-layout { grid-template-columns: 1fr; }
  .srs-due-buckets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bible-meta-grid { grid-template-columns: 1fr; }
}

/* Advanced reading, TTS, and Dojo additions */
.sentence.tts-current, .pdf-token.tts-current, .token.tts-current {
  background: color-mix(in srgb, var(--brand) 30%, transparent) !important;
  outline: 3px solid color-mix(in srgb, var(--brand-2) 75%, transparent) !important;
  border-radius: 0.35em;
  transition: background 0.18s ease, outline 0.18s ease;
}
.sentence.resume-target { outline: 2px dashed var(--brand); }
.tts-chip.inline-check { display: flex; align-items: center; gap: 0.45rem; min-width: max-content; }
.tts-chip.inline-check input { width: auto; }
.reading-level-list { display: grid; gap: 0.6rem; }
.reading-level-row { display: grid; grid-template-columns: minmax(120px, 1fr) minmax(180px, 2fr) auto; gap: 0.8rem; align-items: center; padding: 0.7rem; border: 1px solid var(--line); border-radius: 16px; background: var(--panel-2); }
.reading-level-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 3rem; padding: 0.35rem 0.55rem; border-radius: 999px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #20140a; font-weight: 900; }
.dojo-layout { align-items: stretch; }
.dojo-compose-panel textarea { min-height: 260px; }
.dojo-correction-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.dojo-textbox { min-height: 220px; max-height: 440px; overflow: auto; white-space: pre-wrap; line-height: 1.65; border: 1px solid var(--line); border-radius: 18px; padding: 1rem; background: var(--panel-2); }
.correction-card { margin-top: 0.75rem; padding: 1rem; border-radius: 18px; border: 1px solid var(--line); background: var(--panel-2); }
.dojo-correction { padding: 0.1rem 0.25rem; border-radius: 8px; background: color-mix(in srgb, var(--brand) 16%, transparent); }
.dojo-correction.active { outline: 3px solid var(--brand); background: color-mix(in srgb, var(--brand) 28%, transparent); }
.dojo-correction del { color: var(--danger); opacity: 0.85; }
.dojo-correction ins { color: var(--success); text-decoration: none; font-weight: 800; }
.dojo-correction ruby rt { color: var(--success); font-size: 0.7em; }
.dojo-chat-log { min-height: 120px; max-height: 260px; overflow: auto; white-space: pre-wrap; }
.pronunciation-grade { display: grid; gap: 0.5rem; }
@media (max-width: 900px) { .dojo-correction-grid { grid-template-columns: 1fr; } .reading-level-row { grid-template-columns: 1fr; } }


/* Writing Dojo language keyboard patch */
.dojo-lang-status { margin-top: -0.35rem; }
.dojo-char-pad { margin: 0.6rem 0 0.9rem; padding: 0.65rem; border: 1px solid var(--border); border-radius: 16px; background: color-mix(in srgb, var(--panel) 84%, var(--accent) 7%); }
.dojo-char-buttons { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.35rem; max-height: 9.5rem; overflow: auto; }
.dojo-char-btn { min-width: 2.15rem; padding: 0.35rem 0.45rem; font-size: 1.02rem; line-height: 1.2; font-family: ui-serif, Georgia, 'Times New Roman', serif; }
#dojoEssay[dir="rtl"] { direction: rtl; text-align: right; font-family: 'Noto Naskh Arabic', 'SBL Hebrew', 'Ezra SIL', Georgia, serif; }
#dojoStatus { white-space: pre-wrap; }

/* Local Lingua v10 polish: Legentibus-style reading, chapters, cloze SRS, Dojo popups */
#languageSelect[hidden] { display: none !important; }
.library-hero { margin-bottom: 1rem; }
.lesson-filter-toolbar { position: sticky; top: 0; z-index: 8; backdrop-filter: blur(12px); padding: .6rem; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--panel) 84%, transparent); }
.lesson-item { text-align: left; display: grid; gap: .25rem; }
.lesson-item strong { font-size: 1.02rem; }
.lesson-item small { color: var(--muted); }
.reader-toc { display: flex; flex-wrap: wrap; gap: .5rem; margin: .75rem 0 1rem; padding: .65rem; border: 1px solid var(--line); border-radius: 18px; background: var(--panel-2); max-height: 11rem; overflow: auto; }
.reader-toc.empty-state { display: block; color: var(--muted); }
.toc-chip { display: inline-grid; gap: .08rem; text-align: left; padding: .55rem .75rem; border-radius: 999px; border: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 74%, transparent); color: inherit; }
.toc-chip small { font-size: .72rem; color: var(--muted); }
.toc-chip.active { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 18%, var(--panel)); box-shadow: 0 0 0 2px color-mix(in srgb, var(--brand) 18%, transparent); }
.reader-chapter-nav { justify-content: center; margin: 1rem 0 .25rem; padding-top: .75rem; border-top: 1px solid var(--line); }
.reader-text .sentence { border-radius: .42em; transition: background .16s ease, box-shadow .16s ease; }
.reader-text .sentence.active-sentence { background: color-mix(in srgb, var(--brand) 14%, transparent); box-shadow: 0 0 0 .32em color-mix(in srgb, var(--brand) 9%, transparent); }
.reader-text .sentence.tts-current { background: color-mix(in srgb, var(--brand) 24%, transparent) !important; box-shadow: 0 0 0 .36em color-mix(in srgb, var(--brand-2) 17%, transparent); }
/* Do not color every unknown word by default; keep words clickable and show colors only for saved words when enabled. */
.token.new { background: transparent !important; color: inherit !important; border-bottom: 0 !important; }
.pdf-text-item .token.new { background: transparent !important; border-bottom: 0 !important; }
body.hide-word-level-colors .token.level1,
body.hide-word-level-colors .token.level2,
body.hide-word-level-colors .token.level3,
body.hide-word-level-colors .token.level4,
body.hide-word-level-colors .token.learning,
body.hide-word-level-colors .token.known,
body.hide-word-level-colors .pdf-text-item .token.level1,
body.hide-word-level-colors .pdf-text-item .token.level2,
body.hide-word-level-colors .pdf-text-item .token.level3,
body.hide-word-level-colors .pdf-text-item .token.level4,
body.hide-word-level-colors .pdf-text-item .token.learning,
body.hide-word-level-colors .pdf-text-item .token.known { background: transparent !important; color: inherit !important; border-bottom: 0 !important; }
.status-btn.active, [data-popup-status].active { outline: 3px solid var(--brand); outline-offset: 2px; }
.srs-choice-grid { display: grid; gap: .75rem; margin-top: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.srs-choice { font-size: clamp(1.2rem, 2.4vw, 1.8rem); padding: 1rem; border-radius: 16px; background: color-mix(in srgb, rebeccapurple 40%, var(--panel)); color: #f7f2ff; border: 2px solid transparent; }
.srs-choice:hover { border-color: var(--brand); transform: translateY(-1px); }
.srs-choice.wrong { opacity: .45; text-decoration: line-through; }
.srs-fill { display: grid; gap: .6rem; margin: 1rem auto 0; max-width: 420px; }
.srs-fill input { font-size: 1.25rem; text-align: center; }
.srs-char-pad { margin: .75rem 0; padding: .6rem; border: 1px solid var(--line); border-radius: 16px; background: var(--panel-2); }
.srs-char-pad .char-buttons { display: flex; flex-wrap: wrap; gap: .3rem; max-height: 8rem; overflow: auto; margin-top: .35rem; }
.srs-char-pad button { min-width: 2.15rem; padding: .35rem .45rem; font-family: ui-serif, Georgia, serif; }
.clozemaster-card { background: #050505; color: #f7f7f7; border-radius: 24px; padding: 1.25rem; border: 1px solid rgba(255,255,255,.15); }
.clozemaster-card small { color: #cfd3d9; }
.clozemaster-card p { text-align: center; font-size: clamp(1.45rem, 3vw, 2.25rem); }
.dojo-final-preview { margin-top: .65rem; min-height: 120px; }
.dojo-word-token { cursor: pointer; border-radius: .25em; padding: 0 .08em; }
.dojo-word-token:hover { background: color-mix(in srgb, var(--brand) 18%, transparent); outline: 2px solid color-mix(in srgb, var(--brand) 40%, transparent); }
.dojo-word-popup { position: fixed; z-index: 10000; width: min(280px, calc(100vw - 24px)); display: none; padding: .85rem; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); color: var(--text); box-shadow: 0 16px 60px rgba(0,0,0,.24); }
.dojo-word-popup.visible { display: grid; gap: .5rem; }
.dojo-word-popup p { margin: 0; color: var(--muted); }
.dojo-popup-close { position: absolute; top: .35rem; right: .45rem; width: 1.8rem; height: 1.8rem; padding: 0; border-radius: 999px; }
.dojo-popup-levels button { min-width: 2rem; }
.dojo-popup-links { display: flex; flex-wrap: wrap; gap: .5rem; }
.dojo-popup-links a { font-size: .85rem; }
.dojo-pron-panel { margin-top: 1rem; }
.dojo-pron-panel .dojo-box { min-height: 110px; max-height: 260px; }
.dojo-wrong { color: var(--danger); text-decoration-thickness: 2px; }
.dojo-right { color: var(--success); font-weight: 900; text-decoration: none; background: color-mix(in srgb, var(--success) 13%, transparent); padding: .08rem .2rem; border-radius: .35rem; }
.dojo-correction.active { box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 32%, transparent); }
@media (max-width: 760px) { .srs-choice-grid { grid-template-columns: 1fr; } .reader-toc { max-height: 14rem; } }

/* Legentibus-inspired simplification refresh */
:root {
  --bg: #f7eddd;
  --panel: #fffdf8;
  --panel-2: #f4eadb;
  --text: #111827;
  --muted: #6f6a61;
  --line: #e3d5c1;
  --brand: #ff7900;
  --brand-2: #ff9d2e;
  --accent: var(--brand);
  --border: var(--line);
  --shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
}

body.dark {
  --bg: #050505;
  --panel: #111111;
  --panel-2: #191919;
  --text: #f7f2e8;
  --muted: #bbb2a4;
  --line: #333333;
  --brand: #ff7900;
  --brand-2: #ff9d2e;
  --shadow: none;
}

body {
  background: var(--bg);
  letter-spacing: -0.01em;
}

.app-shell {
  grid-template-columns: 248px minmax(0, 1fr);
}

.sidebar {
  top: 0;
  padding: 1rem 0.85rem;
  background: var(--bg);
  border-right: 1px solid var(--line);
  backdrop-filter: none;
}

.brand {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 0.25rem;
  margin: 0.2rem 0 1rem;
}

.brand-mark {
  width: auto;
  height: auto;
  border-radius: 0;
  background: transparent;
  color: var(--brand);
  line-height: 1;
  font-size: 2.2rem;
  transform: scaleX(1.5);
}

.brand h1 {
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.brand p,
.goal-card,
.avatar-card,
#viewSubtitle {
  display: none !important;
}

.main-nav {
  gap: 0.28rem;
  margin: 0.5rem 0;
}

.nav-btn {
  border-radius: 999px;
  padding: 0.72rem 0.95rem;
  font-size: 0.94rem;
  font-weight: 850;
  border: 1px solid transparent;
}

.nav-btn:hover,
.nav-btn.active {
  transform: none;
  background: #fffaf2;
  color: var(--text);
  border-color: var(--line);
}

body.dark .nav-btn:hover,
body.dark .nav-btn.active {
  background: #1d1d1d;
}

.workspace {
  padding: clamp(0.8rem, 2vw, 1.45rem);
}

.topbar {
  align-items: center;
  margin-bottom: 0.8rem;
}

.topbar h2 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  letter-spacing: -0.04em;
}

.top-actions {
  gap: 0.4rem;
}

button,
.file-btn {
  border-radius: 999px;
  padding: 0.66rem 0.92rem;
  background: var(--brand);
  color: #111827;
  box-shadow: none;
  font-weight: 850;
}

button:hover,
.file-btn:hover {
  transform: none;
  filter: brightness(0.98);
}

button.ghost,
.file-btn.ghost {
  background: color-mix(in srgb, var(--panel) 82%, var(--bg));
  border: 1px solid var(--line);
}

input,
select,
textarea {
  border-radius: 16px;
  background: var(--panel);
}

.panel {
  border-radius: 28px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  box-shadow: var(--shadow);
  background: var(--panel);
}

.library-hero {
  align-items: center;
  background: transparent;
  box-shadow: none;
  border-color: transparent;
  padding: 0.35rem 0.1rem 0.7rem;
}

.library-hero h3 {
  margin-bottom: 0.2rem;
  font-size: clamp(1.5rem, 3vw, 2.15rem);
}

.library-hero .muted {
  max-width: 720px;
}

.library-tools {
  background: transparent;
  border: 0;
  padding: 0 0 0.85rem;
}

.library-tools input,
.library-tools select {
  flex: 1 1 160px;
}

.lesson-grid,
.lesson-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}

.lesson-item {
  position: relative;
  min-height: 138px;
  padding: 1rem 1rem 1.1rem;
  border-radius: 24px;
  background: #fffaf2;
  border: 1px solid var(--line);
  transition: background 0.12s ease, border-color 0.12s ease;
}

.lesson-item:hover,
.lesson-item:focus-visible {
  transform: none;
  border-color: color-mix(in srgb, var(--brand) 55%, var(--line));
  background: #fffdf8;
}

.lesson-item::after {
  content: 'Open →';
  position: absolute;
  right: 1rem;
  bottom: 0.85rem;
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 900;
}

.lesson-item.active {
  outline: 0;
  border-color: var(--brand);
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--brand) 32%, transparent);
}

.lesson-item strong {
  font-size: 1.12rem;
  letter-spacing: -0.03em;
  padding-right: 3.4rem;
}

.lesson-item span,
.lesson-item small {
  max-width: 92%;
  line-height: 1.4;
}

body.dark .lesson-item {
  background: #151515;
}
body.dark .lesson-item:hover,
body.dark .lesson-item:focus-visible {
  background: #1c1c1c;
}

.reader-layout {
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: 0.9rem;
}

.reader-panel.panel {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  padding: 0;
}

.reader-toolbar,
.reader-controls,
.reader-toc,
.reader-chapter-nav,
.audio-box,
#lessonAchievementCard {
  max-width: min(900px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.reader-toolbar {
  align-items: center;
  margin-bottom: 0.6rem;
  padding: 0.55rem 0.1rem;
}

.reader-title-line h3,
#readerTitle {
  font-size: clamp(1.45rem, 3vw, 2.35rem);
  letter-spacing: -0.045em;
}

.reader-toolbar > .row {
  justify-content: flex-start;
  gap: 0.35rem;
}

.reader-toolbar button,
.reader-controls button,
.reader-controls .file-btn {
  padding: 0.52rem 0.72rem;
  font-size: 0.86rem;
}

.reader-controls {
  gap: 0.5rem;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: color-mix(in srgb, var(--panel) 78%, var(--bg));
}

.reader-controls label {
  min-width: 120px;
  font-size: 0.78rem;
}

.reader-controls input,
.reader-controls select {
  padding: 0.48rem 0.58rem;
  border-radius: 12px;
}

.reader-toc {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0.2rem 0 0.75rem;
}

.toc-chip {
  border-radius: 999px;
  padding: 0.48rem 0.72rem;
  background: color-mix(in srgb, var(--panel) 72%, var(--bg));
}

.toc-chip.active {
  color: #111827;
  border-color: var(--brand);
  background: var(--brand);
  box-shadow: none;
}

.toc-chip.active small {
  color: #2b1c10;
}

.reader-text {
  max-width: min(880px, 100%);
  margin: 0 auto;
  min-height: 68vh;
  border-radius: 32px;
  padding: clamp(1.25rem, 4vw, 3rem);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-family: ui-serif, Georgia, 'Times New Roman', serif;
  letter-spacing: 0;
}

.reader-text.theme-paper,
.reader-text.theme-cream,
.reader-text.theme-forest {
  background: #fff5e4;
  color: #111827;
}

.reader-text.theme-midnight,
.reader-text.theme-black,
.reader-text.theme-slate {
  background: #050505;
  color: #f7f2e8;
  border-color: #292929;
}

body.dark .reader-text,
body.dark .reader-text.theme-paper,
body.dark .reader-text.theme-cream,
body.dark .reader-text.theme-forest,
body.dark .reader-text.theme-midnight,
body.dark .reader-text.theme-black,
body.dark .reader-text.theme-slate {
  background: #050505 !important;
  color: #f7f2e8 !important;
  border-color: #292929;
  box-shadow: none;
}

.token {
  padding: 0.02em 0.04em;
  margin: 0;
  border-radius: 0.2em;
  cursor: pointer;
}

.token:hover {
  outline: 0;
  background: color-mix(in srgb, var(--brand) 16%, transparent) !important;
}

.token.selected {
  outline: 2px solid var(--brand);
  background: color-mix(in srgb, var(--brand) 22%, transparent) !important;
}

.reader-text .sentence.active-sentence,
.reader-text .sentence.tts-current,
.sentence.tts-current,
.pdf-token.tts-current,
.token.tts-current {
  background: color-mix(in srgb, var(--brand) 20%, transparent) !important;
  box-shadow: 0 0 0 0.28em color-mix(in srgb, var(--brand) 10%, transparent) !important;
  outline: 0 !important;
}

.reader-text .sentence.resume-target {
  outline: 2px solid color-mix(in srgb, var(--brand) 60%, transparent);
  outline-offset: 0.22em;
}

.word-panel.panel {
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.selected-word {
  font-family: ui-serif, Georgia, serif;
  color: var(--brand);
}

.status-pills {
  grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(70px, 1.2fr);
}

.status-btn.level1,
.status-btn.level2,
.status-btn.level3,
.status-btn.level4 {
  background: #fff5e4;
  border: 1px solid var(--line);
  color: var(--text);
}

.status-btn.active,
[data-popup-status].active {
  background: var(--brand) !important;
  color: #111827 !important;
  outline: 0;
  border-color: var(--brand);
}

.word-popup {
  border-radius: 24px;
  background: var(--panel);
  border-color: var(--line);
  box-shadow: 0 18px 60px rgba(0,0,0,0.18);
}

body.dark .word-popup {
  box-shadow: 0 18px 60px rgba(0,0,0,0.5);
}

.popup-translation,
.sentence-box,
.morph-tree,
.dojo-textbox,
.correction-card,
.srs-settings,
.srs-char-pad,
.flashcard,
.card-face {
  background: color-mix(in srgb, var(--panel) 82%, var(--bg));
}

.pdf-original-viewer {
  border-radius: 28px;
  background: color-mix(in srgb, var(--panel) 72%, var(--bg));
  border-color: var(--line);
}

body.dark .pdf-original-viewer {
  background: #050505;
}

.srs-choice {
  background: #4a266f;
  color: #f8f4ff;
}

.clozemaster-card {
  border-radius: 28px;
  background: #050505;
  color: #f7f7f7;
}

.dojo-layout .panel,
#srsView .panel,
#settingsView .panel,
#createView .panel,
#statsView .panel,
#coursesView .panel {
  box-shadow: var(--shadow);
}

/* Default to calm Legentibus-style reading: clickable words stay visually plain until selected or sentence-highlighted. */
body.hide-word-level-colors .reader-text .token,
body.hide-word-level-colors .pdf-text-item .token {
  background: transparent !important;
  border-bottom: 0 !important;
  color: inherit !important;
}

@media (max-width: 1120px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: relative;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .brand { display: flex; justify-content: center; }
  .main-nav { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .reader-layout { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .main-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-grid, .lesson-list { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .top-actions { flex-wrap: wrap; }
  .reader-text { border-radius: 24px; padding: 1.25rem; }
}


/* === local patch: reader/library polish styles v12 === */
body.dark {
  --bg: #111c34;
  --panel: #16233f;
  --panel-2: #0f1a31;
  --text: #eef2ff;
  --muted: #a8b3cd;
  --line: #28395e;
  --brand: #7c4dff;
  --brand-2: #b892ff;
  --shadow: 0 16px 42px rgba(3, 10, 26, 0.48);
}

body.dark {
  background: linear-gradient(180deg, #16233f 0%, #111c34 100%);
}

body.dark .sidebar {
  background: #0d172b;
  border-right-color: #223252;
}

body.dark .goal-card,
body.dark .avatar-card,
body.dark .panel,
body.dark button.ghost,
body.dark .file-btn.ghost,
body.dark input,
body.dark select,
body.dark textarea {
  background: #0f1a31;
  border-color: #2a3d66;
}

body.dark .topbar,
body.dark .reader-panel.panel {
  color: var(--text);
}

body.dark .nav-btn.active,
body.dark .nav-btn:hover {
  background: rgba(124, 77, 255, 0.13);
  border-color: rgba(124, 77, 255, 0.36);
  color: #d6c5ff;
}

.reader-controls-toggle {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  max-width: min(900px,100%);
  margin: 0 auto 0.55rem;
}

.reader-controls.collapsed-folder.is-collapsed {
  display: none;
}

body.dark .reader-toolbar,
body.dark .reader-controls,
body.dark .reader-toc,
body.dark .reader-chapter-nav,
body.dark .audio-box,
body.dark #lessonAchievementCard {
  color: var(--text);
}

body.dark .reader-controls {
  background: #0f1a31;
  border-color: #2a3d66;
}

body.dark .reader-text,
body.dark .reader-text.theme-paper,
body.dark .reader-text.theme-cream,
body.dark .reader-text.theme-forest,
body.dark .reader-text.theme-midnight,
body.dark .reader-text.theme-black,
body.dark .reader-text.theme-slate {
  background: #070d1b !important;
  color: #f3f0e8 !important;
  border-color: #1d2b4b;
}

body.dark .status-btn.level1,
body.dark .status-btn.level2,
body.dark .status-btn.level3,
body.dark .status-btn.level4,
body.dark [data-popup-status] {
  background: #152442;
  color: #f5f7ff;
  border: 1px solid #344b79;
}

body.dark .status-btn.level1 { color: #ffd9ae; }
body.dark .status-btn.level2 { color: #ffe8a8; }
body.dark .status-btn.level3 { color: #c4f0cc; }
body.dark .status-btn.level4 { color: #ffffff; }

body.dark .status-btn.active,
body.dark [data-popup-status].active {
  background: linear-gradient(135deg, #7c4dff, #b892ff) !important;
  color: #ffffff !important;
  border-color: #9b77ff;
}

.lesson-grid,
.lesson-list {
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1rem;
}

.lesson-card {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  padding: 0;
  border-radius: 30px;
  text-align: left;
  background: #111827;
  color: #fff;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 20px 50px rgba(12,20,37,.16);
}

.lesson-card-cover {
  position: absolute;
  inset: 0;
  display: block;
}

.lesson-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,17,32,.08) 0%, rgba(8,12,22,.20) 40%, rgba(8,12,22,.84) 100%);
}

.lesson-card-inner {
  position: relative;
  display: flex;
  min-height: 220px;
  flex-direction: column;
  justify-content: flex-end;
  gap: 0.45rem;
  padding: 1.15rem 1.1rem 1rem;
}

.lesson-card strong {
  font-size: 1.35rem;
  line-height: 1.05;
  padding-right: 0;
  color: #fff;
}

.lesson-card-kicker,
.lesson-card-meta,
.lesson-card small,
.lesson-progress-value {
  color: rgba(244,247,255,.9);
}

.lesson-card-kicker {
  display: inline-flex;
  align-self: flex-start;
  padding: .35rem .6rem;
  border-radius: 999px;
  font-size: .75rem;
  background: rgba(255,255,255,.14);
  backdrop-filter: blur(10px);
}

.lesson-card-meta {
  font-size: 0.95rem;
  line-height: 1.35;
}

.lesson-progress-row {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.lesson-progress-bar {
  flex: 1;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.18);
  overflow: hidden;
}

.lesson-progress-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #7c4dff, #45d1ff);
}

.lesson-item.lesson-card::after {
  content: 'Open';
  position: absolute;
  right: 1rem;
  top: 1rem;
  bottom: auto;
  color: rgba(255,255,255,.92);
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  padding: .36rem .65rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
}

.lesson-item.lesson-card:hover,
.lesson-item.lesson-card:focus-visible {
  background: #111827;
  border-color: rgba(124,77,255,.55);
  transform: translateY(-2px);
}

.lesson-item.lesson-card.active {
  border-color: rgba(124,77,255,.92);
  box-shadow: 0 0 0 2px rgba(124,77,255,.25), 0 20px 50px rgba(12,20,37,.18);
}

.library-hero {
  padding: .2rem 0 .9rem;
}

.library-hero .muted {
  opacity: .92;
}

body.dark .library-hero {
  color: #f3f5ff;
}

.reader-text .sentence.active-sentence,
.reader-text .sentence.tts-current,
.sentence.tts-current,
.pdf-token.tts-current,
.token.tts-current {
  background: color-mix(in srgb, var(--brand) 18%, transparent) !important;
  box-shadow: 0 0 0 0.34em color-mix(in srgb, var(--brand) 14%, transparent) !important;
  border-radius: .45em;
}

.reader-text .sentence {
  transition: background .16s ease, box-shadow .16s ease;
}

body.dark .reader-controls-toggle,
body.dark .toc-chip,
body.dark .reader-controls input,
body.dark .reader-controls select {
  border-color: #2a3d66;
}

body.dark .toc-chip {
  background: #0f1a31;
  color: #e7ecff;
}

body.dark .toc-chip.active {
  background: linear-gradient(135deg, #7c4dff, #b892ff);
  color: #fff;
}

body.dark .word-panel.panel,
body.dark .popup-translation,
body.dark .sentence-box,
body.dark .morph-tree,
body.dark .iframe-panel,
body.dark #dictFrame,
body.dark .word-popup {
  background: #0f1a31;
  border-color: #2a3d66;
}

@media (max-width: 760px) {
  .lesson-grid, .lesson-list { grid-template-columns: 1fr; }
  .lesson-card { min-height: 190px; }
  .lesson-card-inner { min-height: 190px; }
}


/* === local patch: attached copy visual simplification v13 === */
:root {
  --bg: #f5f0e8;
  --panel: #fffaf1;
  --panel-2: #fbf4e7;
  --text: #1f2220;
  --muted: #6d6a61;
  --line: #ded3bf;
  --brand: #d46f2c;
  --brand-2: #f0b15f;
  --shadow: 0 18px 50px rgba(31, 34, 32, 0.09);
}

body.dark {
  --bg: #111413;
  --panel: #1a1f1d;
  --panel-2: #202824;
  --text: #f3efe8;
  --muted: #b8b0a3;
  --line: #354039;
  --brand: #d46f2c;
  --brand-2: #f0b15f;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

body,
body.dark {
  background: radial-gradient(circle at top left, rgba(212,111,44,0.14), transparent 30%), var(--bg) !important;
  color: var(--text);
}

button,
.file-btn {
  border-radius: 14px;
  box-shadow: 0 8px 20px rgba(212,111,44,0.18);
}

button.ghost,
.file-btn.ghost {
  background: var(--panel-2) !important;
  color: var(--text) !important;
  border: 1px solid var(--line) !important;
  box-shadow: none !important;
}

.sidebar,
body.dark .sidebar {
  background: color-mix(in srgb, var(--panel) 86%, transparent) !important;
  border-right: 1px solid var(--line) !important;
  backdrop-filter: blur(18px);
}

.nav-btn,
body.dark .nav-btn {
  background: transparent !important;
  color: var(--text) !important;
  border: 1px solid transparent !important;
  box-shadow: none !important;
}

.nav-btn.active,
.nav-btn:hover,
body.dark .nav-btn.active,
body.dark .nav-btn:hover {
  background: var(--panel-2) !important;
  border-color: var(--line) !important;
  color: var(--text) !important;
}

.panel,
body.dark .panel,
.goal-card,
.avatar-card,
body.dark .goal-card,
body.dark .avatar-card {
  background: color-mix(in srgb, var(--panel) 95%, transparent) !important;
  border: 1px solid var(--line) !important;
  border-radius: 24px !important;
  box-shadow: var(--shadow) !important;
}

.library-hero {
  background: color-mix(in srgb, var(--panel) 95%, transparent) !important;
  border: 1px solid var(--line) !important;
  padding: 1rem !important;
  border-radius: 24px !important;
  box-shadow: var(--shadow) !important;
}

.library-hero h3 { font-size: 1.35rem !important; }
.library-tools { padding-bottom: .8rem !important; }

.lesson-grid,
.lesson-list {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: .6rem !important;
}

.lesson-item,
.lesson-item.lesson-card,
body.dark .lesson-item,
body.dark .lesson-item.lesson-card {
  display: grid !important;
  gap: .25rem !important;
  min-height: 0 !important;
  width: 100% !important;
  padding: .82rem .92rem !important;
  text-align: left !important;
  background: var(--panel-2) !important;
  color: var(--text) !important;
  border: 1px solid var(--line) !important;
  border-radius: 14px !important;
  box-shadow: none !important;
  overflow: visible !important;
  transform: none !important;
}

.lesson-item::before,
.lesson-item::after,
.lesson-card-cover,
.lesson-card-inner,
.lesson-card-kicker,
.lesson-progress-row,
.lesson-progress-bar,
.lesson-progress-value {
  display: none !important;
  content: none !important;
}

.lesson-item strong,
.lesson-item.lesson-card strong {
  display: block !important;
  color: var(--text) !important;
  font-size: 1rem !important;
  line-height: 1.25 !important;
  padding: 0 !important;
}

.lesson-item span,
.lesson-item small,
.lesson-item.lesson-card span,
.lesson-item.lesson-card small {
  display: block !important;
  color: var(--muted) !important;
  font-size: .88rem !important;
  line-height: 1.35 !important;
  max-width: 100% !important;
}

.lesson-item:hover,
.lesson-item:focus-visible,
.lesson-item.lesson-card:hover,
.lesson-item.lesson-card:focus-visible {
  background: color-mix(in srgb, var(--panel-2) 72%, var(--brand) 8%) !important;
  border-color: color-mix(in srgb, var(--brand) 45%, var(--line)) !important;
}

.lesson-item.active,
.lesson-item.lesson-card.active {
  outline: 3px solid color-mix(in srgb, var(--brand) 40%, transparent) !important;
  border-color: var(--brand) !important;
  box-shadow: none !important;
}

.reader-layout { grid-template-columns: minmax(0, 1fr) 380px !important; gap: 1rem !important; }
.reader-panel.panel { background: transparent !important; border-color: transparent !important; box-shadow: none !important; padding: 0 !important; }
.reader-toolbar { padding: 0 !important; margin-bottom: .5rem !important; }
.reader-title-line h3, #readerTitle { font-size: 1.45rem !important; }
.reader-toolbar .row { gap: .35rem !important; }
.reader-toolbar button { padding: .5rem .65rem !important; font-size: .85rem !important; }
.reader-controls-toggle { margin: .25rem auto .5rem !important; padding: .5rem .75rem !important; }
.reader-controls.collapsed-folder.is-collapsed { display: none !important; }
.reader-controls,
body.dark .reader-controls {
  background: color-mix(in srgb, var(--panel) 95%, transparent) !important;
  border: 1px solid var(--line) !important;
  border-radius: 18px !important;
  padding: .75rem !important;
}
.reader-controls label { min-width: 150px !important; font-size: .85rem !important; }

.reader-text,
body.dark .reader-text,
.reader-text.theme-paper,
.reader-text.theme-cream,
.reader-text.theme-forest,
.reader-text.theme-midnight,
.reader-text.theme-black,
.reader-text.theme-slate,
body.dark .reader-text.theme-paper,
body.dark .reader-text.theme-cream,
body.dark .reader-text.theme-forest,
body.dark .reader-text.theme-midnight,
body.dark .reader-text.theme-black,
body.dark .reader-text.theme-slate {
  max-width: none !important;
  min-height: 48vh !important;
  border-radius: 20px !important;
  padding: 1.1rem !important;
  line-height: 1.55 !important;
  font-size: 22px;
  box-shadow: none !important;
  border: 1px solid var(--line) !important;
}
.reader-text.theme-paper,
.reader-text.theme-cream,
.reader-text.theme-forest { background: #fffaf0 !important; color: #201f1c !important; }
.reader-text.theme-midnight,
.reader-text.theme-black,
.reader-text.theme-slate { background: #111827 !important; color: #f9fafb !important; }
body.dark .reader-text,
body.dark .reader-text.theme-paper,
body.dark .reader-text.theme-cream,
body.dark .reader-text.theme-forest,
body.dark .reader-text.theme-midnight,
body.dark .reader-text.theme-black,
body.dark .reader-text.theme-slate { background: #111827 !important; color: #f9fafb !important; }

.token { display: inline; padding: .08em .12em; margin: 0 .02em; border-radius: .28em; }
.token:hover { outline: 2px solid var(--brand); background: transparent !important; }
.token.selected { outline: 3px solid var(--brand); background: transparent !important; }
.reader-text .sentence.active-sentence,
.reader-text .sentence.tts-current,
.sentence.tts-current,
.pdf-token.tts-current,
.token.tts-current {
  background: color-mix(in srgb, var(--brand) 18%, transparent) !important;
  box-shadow: none !important;
  border-radius: .35em !important;
}

.status-btn.level1,
.status-btn.level2,
.status-btn.level3,
.status-btn.level4,
body.dark .status-btn.level1,
body.dark .status-btn.level2,
body.dark .status-btn.level3,
body.dark .status-btn.level4,
body.dark [data-popup-status] {
  background: var(--panel-2) !important;
  border: 1px solid var(--line) !important;
  color: var(--text) !important;
}
.status-btn.active,
[data-popup-status].active,
body.dark .status-btn.active,
body.dark [data-popup-status].active {
  background: var(--brand) !important;
  border-color: var(--brand) !important;
  color: #20140a !important;
  outline: 3px solid color-mix(in srgb, var(--brand) 45%, transparent) !important;
}

.word-panel.panel { position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow: auto; }
.word-popup,
body.dark .word-popup { background: var(--panel) !important; border-color: var(--line) !important; }
.popup-translation,
.sentence-box,
.morph-tree,
.dojo-textbox,
.correction-card,
.srs-settings,
.srs-char-pad,
.flashcard,
.card-face,
body.dark .popup-translation,
body.dark .sentence-box,
body.dark .morph-tree,
body.dark .dojo-textbox,
body.dark .correction-card,
body.dark .srs-settings,
body.dark .srs-char-pad,
body.dark .flashcard,
body.dark .card-face {
  background: var(--panel-2) !important;
  border-color: var(--line) !important;
  color: var(--text) !important;
}

@media (max-width: 1120px) {
  .reader-layout { grid-template-columns: 1fr !important; }
  .word-panel { position: relative; top: auto; max-height: none; }
}
@media (max-width: 760px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .top-actions { flex-wrap: wrap; }
  .main-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* === enterprise language-learning overhaul v13 === */
:root {
  --enterprise-bg: #f6f8fb;
  --enterprise-surface: #ffffff;
  --enterprise-ink: #121826;
  --enterprise-muted: #667085;
  --enterprise-line: #d9e1ef;
  --enterprise-primary: #6f43d6;
  --enterprise-primary-2: #8e5cf7;
  --enterprise-success: #24a865;
  --enterprise-danger: #d1495b;
  --enterprise-card-shadow: 0 18px 60px rgba(17,24,39,.10);
}
body:not(.dark) {
  background: var(--enterprise-bg);
}
body:not(.dark) .panel,
body:not(.dark) input,
body:not(.dark) select,
body:not(.dark) textarea,
body:not(.dark) button.ghost,
body:not(.dark) .file-btn.ghost {
  background: var(--enterprise-surface);
  border-color: var(--enterprise-line);
}
body:not(.dark) .panel { box-shadow: var(--enterprise-card-shadow); }
body:not(.dark) .sidebar { background: #111827; color: #e9eefb; border: 0; }
body:not(.dark) .sidebar .muted, body:not(.dark) .sidebar p { color: #9ca3af; }
body:not(.dark) .nav-btn { color: #cbd5e1; }
body:not(.dark) .nav-btn.active, body:not(.dark) .nav-btn:hover { background: rgba(111,67,214,.16); border-color: rgba(111,67,214,.35); color: #fff; }
body:not(.dark) .brand-mark { background: linear-gradient(135deg, #6f43d6, #20a7db); color: white; }
button, .file-btn { background: linear-gradient(135deg, var(--enterprise-primary), var(--enterprise-primary-2)); color: white; border-radius: 12px; box-shadow: none; }
button.success { color: white; background: var(--enterprise-success); }
button.danger { color: var(--enterprise-danger); }
button.ghost.danger { color: var(--enterprise-danger); background: transparent; }
.eyebrow { margin: 0 0 .25rem; text-transform: uppercase; letter-spacing: .08em; font-size: .72rem; font-weight: 900; color: var(--enterprise-primary); }

/* SRS page */
.srs-enterprise-shell { display: grid; gap: 1rem; max-width: 1180px; margin: 0 auto; }
.srs-review-panel.enterprise-card { padding: clamp(1.1rem, 2vw, 1.8rem); border-radius: 28px; }
.srs-review-topline { display:flex; justify-content:space-between; gap:1rem; align-items:flex-start; margin-bottom: 1rem; }
.srs-review-topline h3 { margin: 0; font-size: clamp(1.8rem, 3.2vw, 2.7rem); letter-spacing: -.04em; }
.srs-review-controls, .enterprise-config-grid { display:flex; gap:.75rem; flex-wrap:wrap; align-items:end; }
.srs-review-controls label { min-width: 190px; }
.enterprise-review-window { min-height: 560px; display:grid; align-content:center; gap: 1rem; border-radius: 30px; background:#050505; color:#f9fafb; padding: clamp(1.25rem, 3vw, 2.5rem); }
.enterprise-review-window .card-face { background: transparent; border: 0; color: inherit; }
.enterprise-srs-card { width: 100%; min-height: 360px; display:grid; align-content:center; justify-items:center; gap: 1.1rem; text-align:center; background: transparent !important; color: inherit; }
.srs-card-header { display:flex; justify-content:center; gap:1rem; font-weight:900; text-transform:uppercase; letter-spacing:.07em; font-size:.78rem; color:#c4b5fd; }
.srs-cloze-line { font-size: clamp(2rem, 4vw, 3.8rem); line-height:1.22; margin: .2rem auto; max-width: 950px; }
.srs-translation-hint, .srs-meaning-prompt { margin:0; font-size: clamp(1.05rem, 2vw, 1.35rem); color:#d1d5db; }
.srs-choice-grid { width:min(760px, 100%); display:grid; gap: .85rem; margin: 1rem auto 0; }
.srs-choice { width:100%; background:#4b2364; color:#f8f4ff; border: 1px solid rgba(255,255,255,.08); border-radius: 14px; padding:1rem; font-size: clamp(1.05rem, 2vw, 1.35rem); }
.srs-choice.correct { background: #58bd61 !important; color:#fff; }
.srs-choice.wrong { background: #8b2b3a !important; color:#fff; opacity:.85; }
.srs-fill { width:min(680px,100%); display:grid; gap:.75rem; margin:auto; }
.srs-fill input { font-size:1.35rem; text-align:center; background:#111827; color:#fff; border-color:#374151; }
.srs-fill button { width: 100%; }
.srs-card-actions { justify-content:center; }
.enterprise-grade-row { justify-content:center; }
.srs-char-pad .dojo-char-buttons { max-height: 86px; overflow:auto; }
.srs-config-panel, .srs-vocab-panel { border-radius: 22px; }
.srs-config-panel summary, .srs-vocab-panel summary, .dojo-history summary, .dojo-vocab summary, .dojo-chat summary { cursor:pointer; font-weight:900; font-size:1.05rem; }
.enterprise-vocab-row { border-radius: 16px; background: color-mix(in srgb, var(--panel) 90%, var(--bg)); padding: .9rem; }

/* Reader simplified top + drawer */
#readerView .reader-toolbar > .row { display:none; }
.reader-enterprise-top { max-width:min(980px,100%); margin:.2rem auto .8rem; display:flex; align-items:center; gap:.55rem; flex-wrap:wrap; padding:.65rem; border:1px solid var(--line); border-radius:18px; background: color-mix(in srgb, var(--panel) 86%, var(--bg)); box-shadow: 0 12px 36px rgba(17,24,39,.06); }
.reader-enterprise-top .reader-top-language { min-width: 220px; max-width: 260px; font-size:.75rem; }
.reader-enterprise-top button { padding:.62rem .85rem; }
.reader-tools-drawer { position:fixed; inset:0; z-index:10000; background:rgba(2,6,23,.42); display:flex; justify-content:flex-end; }
.reader-tools-drawer.hidden { display:none; }
.reader-tools-panel { width:min(460px, 92vw); height:100%; overflow:auto; background:var(--panel); color:var(--text); border-left:1px solid var(--line); padding:1.2rem; box-shadow:-18px 0 60px rgba(0,0,0,.24); }
.reader-tools-mount { display:grid; gap:1rem; }
.reader-tools-mount .row, .reader-tools-mount .reader-controls { display:flex !important; }
.reader-tools-mount .reader-controls { flex-direction:column; align-items:stretch; max-width:100%; margin:0; }
.reader-tools-mount .reader-controls label { width:100%; }
.sentence-focus-overlay { position:fixed; inset:0; z-index:10001; background:rgba(3,7,18,.84); display:grid; place-items:center; padding:1rem; }
.sentence-focus-overlay.hidden { display:none; }
.sentence-focus-card { position:relative; width:min(980px,96vw); min-height:min(720px,90vh); border-radius:32px; background:#050505; color:#f7f2e8; padding: clamp(1.2rem, 4vw, 3rem); display:grid; gap:1rem; align-content:center; box-shadow:0 30px 100px rgba(0,0,0,.5); }
.sentence-focus-close { position:absolute; right:1rem; top:1rem; }
.sentence-focus-meta { color:#a78bfa; font-weight:900; text-transform:uppercase; letter-spacing:.08em; }
.sentence-focus-text { font-family: ui-serif, Georgia, serif; font-size:clamp(2rem, 5vw, 4rem); line-height:1.22; text-align:center; }
.sentence-focus-card textarea { background:#101827; color:#fff; border-color:#2a3655; }
.sentence-focus-actions { justify-content:center; }

/* Dojo enterprise layout */
.dojo-enterprise-shell { display:grid; gap:1rem; max-width: 1280px; margin: 0 auto; }
.dojo-tabs { display:inline-flex; gap:.25rem; padding:.25rem; border:1px solid var(--line); border-radius:999px; background: color-mix(in srgb, var(--panel) 88%, var(--bg)); width: fit-content; }
.dojo-tab { border-radius:999px; padding:.65rem 1.1rem; background:transparent; color:var(--text); }
.dojo-tab.active { background:linear-gradient(135deg, var(--enterprise-primary), var(--enterprise-primary-2)); color:white; }
.dojo-pane { display:none; }
.dojo-pane.active { display:block; }
.enterprise-compose { padding: clamp(1rem,2vw,1.6rem); }
.dojo-primary-controls { margin:.8rem 0; }
.dojo-full-width textarea { width:100%; min-height: 44vh; font-size:1.1rem; line-height:1.65; }
.dojo-correction-surface { display:none; }
.enterprise-compose.has-correction .dojo-compose-surface { display:none; }
.enterprise-compose.has-correction .dojo-correction-surface { display:block; }
.enterprise-correction-grid { grid-template-columns: repeat(3, minmax(0,1fr)); gap:1rem; }
.dojo-box, .dojo-chat-log { background: color-mix(in srgb, var(--panel) 90%, var(--bg)); border:1px solid var(--line); border-radius:18px; }
.dojo-correction { background: rgba(111,67,214,.16); border-bottom: 2px solid var(--enterprise-primary); border-radius: 6px; padding: 0 .1em; }
.dojo-correction.active { background: rgba(36,168,101,.20); border-bottom-color: var(--enterprise-success); }
.correction-card del, .dojo-box del { color: var(--enterprise-danger); text-decoration-thickness: 2px; }
.enterprise-speaking { max-width:900px; }
body.dark .enterprise-review-window, body.dark .sentence-focus-card { background:#030712; }
body.dark .reader-enterprise-top, body.dark .dojo-tabs { background:#0f1a31; }
body.dark .reader-tools-panel { background:#0f1a31; }
@media(max-width:900px){ .srs-review-topline{flex-direction:column}.srs-review-controls label{min-width:100%}.enterprise-correction-grid{grid-template-columns:1fr}.reader-enterprise-top .reader-top-language{max-width:100%; width:100%;}.enterprise-review-window{min-height:500px}.srs-cloze-line{font-size:2rem} }
#readerControlsToggle { display:none !important; }

/* === v14 minimal enterprise UI pass === */
:root {
  --enterprise-primary: #6f43d6;
  --enterprise-primary-2: #8f67ff;
  --enterprise-bg: #f6f7fb;
  --enterprise-panel: #ffffff;
  --enterprise-border: #dde3ee;
  --enterprise-text: #172033;
  --enterprise-muted: #687386;
}
body:not(.dark) {
  --bg: var(--enterprise-bg);
  --panel: var(--enterprise-panel);
  --panel-2: #f2f4f9;
  --text: var(--enterprise-text);
  --muted: var(--enterprise-muted);
  --line: var(--enterprise-border);
  --brand: var(--enterprise-primary);
  --brand-2: var(--enterprise-primary-2);
  background: #f6f7fb;
}
body.dark {
  --brand: #8f67ff;
  --brand-2: #b596ff;
}
button, .file-btn { box-shadow:none; }
button.ghost, .file-btn.ghost, input, select, textarea { border-radius: 12px; }
.panel { border-radius: 22px; box-shadow: 0 12px 32px rgba(31,43,75,.07); }
body.dark .panel { box-shadow: 0 12px 32px rgba(2,8,23,.28); }
.topbar { align-items:center; margin-bottom:1rem; }
.topbar h2 { font-size:clamp(1.35rem,2.2vw,2rem); }
.topbar p { display:none; }
.global-more-menu { margin-left:auto; position:relative; }
.global-more-menu > summary, .compact-menu > summary {
  list-style:none; cursor:pointer; user-select:none; display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--line); background:var(--panel); color:var(--text); border-radius:999px; padding:.62rem .9rem; font-weight:800;
}
.global-more-menu > summary::-webkit-details-marker, .compact-menu > summary::-webkit-details-marker { display:none; }
.global-more-menu > .top-actions,
.inline-more-menu > .row,
.word-more-menu > .row,
.compact-menu > .toolbar-row,
.compact-menu > .reader-tools-mount {
  margin-top:.55rem;
}
.global-more-menu[open] > .top-actions {
  position:absolute; right:0; top:2.5rem; z-index:60; min-width:230px; display:grid; gap:.5rem; padding:.75rem;
  background:var(--panel); border:1px solid var(--line); border-radius:18px; box-shadow:0 18px 46px rgba(20,30,54,.18);
}
.global-more-menu .top-actions > * { width:100%; justify-content:center; }
.inline-more-menu, .word-more-menu, .dictionary-more-menu, .morph-more-menu { margin:.6rem 0; }
.inline-more-menu[open] > .row,
.word-more-menu[open] > *,
.dictionary-more-menu[open] > *,
.morph-more-menu[open] > * {
  margin-top:.55rem;
}

/* Reader: one clean command bar; all lower-frequency tools are in the drawer. */
body.reader-active .topbar { display:none; }
#readerView .reader-panel.panel { padding-top:0; }
#readerView .reader-toolbar { display:none !important; }
.reader-enterprise-top {
  position:sticky; top:.65rem; z-index:30; display:grid; grid-template-columns:auto minmax(0,1fr) minmax(180px,250px) auto auto auto; gap:.65rem; align-items:center;
  max-width:min(980px,100%); margin:0 auto 1rem; padding:.55rem; border:1px solid var(--line); border-radius:18px;
  background: color-mix(in srgb, var(--panel) 92%, transparent); backdrop-filter: blur(14px); box-shadow:0 12px 36px rgba(25,35,63,.08);
}
.reader-top-title { min-width:0; display:grid; gap:.05rem; }
.reader-top-title strong { overflow:hidden; white-space:nowrap; text-overflow:ellipsis; font-size:1rem; }
.reader-top-title small { overflow:hidden; white-space:nowrap; text-overflow:ellipsis; color:var(--muted); font-size:.76rem; }
.reader-top-language { font-size:.74rem; font-weight:800; display:grid; grid-template-columns:auto 1fr; align-items:center; gap:.4rem; }
.reader-top-language select { padding:.48rem .55rem; }
#readerTopSpeakV14, #readerTopSpeak { padding:.65rem .95rem; border-radius:999px; }
#readerSentenceChallengeV14, #readerMenuBtnV14, #readerBackToLibraryV14 { padding:.62rem .82rem; border-radius:999px; }
.reader-tools-drawer { position:fixed; inset:0; z-index:100; background:rgba(8,14,26,.42); display:flex; justify-content:flex-end; backdrop-filter: blur(4px); }
.reader-tools-drawer.hidden { display:none !important; }
.reader-tools-panel { width:min(460px,96vw); height:100%; overflow:auto; background:var(--panel); color:var(--text); padding:1rem; border-left:1px solid var(--line); box-shadow:-20px 0 50px rgba(0,0,0,.22); }
.reader-tools-mount { display:grid; gap:.8rem; }
.reader-tools-mount .reader-controls,
.reader-tools-mount .reader-toolbar > .row,
.reader-tools-mount .reader-toc,
.reader-tools-mount .reader-chapter-nav,
.reader-tools-mount .audio-box,
.reader-tools-mount #lessonAchievementCard { max-width:none; display:flex; }
.reader-tools-mount .reader-controls { display:grid; }
.reader-tools-mount .reader-toc { display:flex; flex-wrap:wrap; }
.reader-tools-mount .reader-chapter-nav { display:flex; }
.reader-tools-mount .audio-box { display:grid; }
#readerView .reader-toc, #readerView .reader-chapter-nav, #readerView .audio-box, #lessonAchievementCard { margin-top:.5rem; }
.reader-text { margin-top:.35rem; }
#readerControlsToggle { display:none !important; }

/* Word panel: keep vocab level/saving visible, nest infrequent dictionary/morphology tools. */
.word-panel.panel { align-self:start; }
.word-panel .primary-word-actions { display:flex; gap:.5rem; flex-wrap:wrap; }
.word-panel .primary-word-actions button { flex:1 1 auto; }
.word-panel .iframe-panel, .word-panel .morph-tree { margin-top:.5rem; }

/* SRS: review first; everything else collapsed. */
#srsView .srs-enterprise-shell { max-width:min(980px,100%); margin:0 auto; }
#srsView .srs-review-panel { padding:clamp(1rem,3vw,2rem); }
#srsView .flashcard, #srsView .enterprise-review-window { min-height:520px; width:100%; }
#srsView .srs-config-panel:not([open]), #srsView .srs-vocab-panel:not([open]) { padding:.75rem 1rem; }
#srsView .srs-config-panel summary, #srsView .srs-vocab-panel summary { cursor:pointer; font-weight:900; }
#srsView .srs-review-controls { display:flex; gap:.6rem; flex-wrap:wrap; }
#srsView .srs-review-controls label { min-width:180px; }

/* Dojo: tabs always work and stay obvious, with lower sections collapsed. */
.dojo-tabs { margin-bottom:1rem; }
.dojo-tab { min-width:120px; }
.dojo-pane { display:none !important; }
.dojo-pane.active { display:block !important; }
#dojoSpeakingPane[style*="block"] { display:block !important; }
#dojoWritingPane[style*="block"] { display:block !important; }
.dojo-enterprise-shell { max-width:min(1080px,100%); margin:0 auto; }
.dojo-history:not([open]), .dojo-vocab:not([open]), .dojo-chat:not([open]), .dojo-ai-settings:not([open]) { padding:.75rem 1rem; }
.dojo-history summary, .dojo-vocab summary, .dojo-chat summary, .dojo-ai-settings summary { cursor:pointer; font-weight:900; }
.enterprise-compose .panel-title-row .row.wrap { flex-wrap:nowrap; }

@media (max-width: 900px) {
  .reader-enterprise-top { grid-template-columns:1fr auto auto; }
  .reader-top-language { grid-column:1 / -1; }
  #readerBackToLibraryV14 { display:none; }
  .reader-top-title { grid-column:1 / -1; }
}
@media (max-width: 620px) {
  .reader-enterprise-top { position:static; grid-template-columns:1fr 1fr; }
  .reader-top-title, .reader-top-language { grid-column:1 / -1; }
  #readerTopSpeakV14, #readerSentenceChallengeV14, #readerMenuBtnV14 { width:100%; }
}


/* === v15 OpenAI/Youtube/dictionary polish === */
body.dark .status-btn.level1,
body.dark .status-btn.level2,
body.dark .status-btn.level3,
body.dark .status-btn.level4,
body.dark [data-popup-status="level1"],
body.dark [data-popup-status="level2"],
body.dark [data-popup-status="level3"],
body.dark [data-popup-status="level4"] {
  background: #152442 !important;
  border: 1px solid #3c5485 !important;
  color: #ffffff !important;
  opacity: 1 !important;
  -webkit-text-fill-color: #ffffff;
}
body.dark .status-btn.level1::after,
body.dark .status-btn.level2::after,
body.dark .status-btn.level3::after,
body.dark .status-btn.level4::after { color: #fff !important; }
body.dark .selected-word,
body.dark #popupWord,
body.dark .target-word,
body.dark .srs-target,
body.dark .current-word {
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff;
}
.word-popup.has-dict-frame {
  width: min(560px, calc(100vw - 24px));
  max-height: min(78vh, 760px);
  overflow: auto;
}
.popup-dict-frame-wrap {
  margin-top: .75rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--panel);
}
#popupDictFrame {
  width: 100%;
  height: min(42vh, 420px);
  border: 0;
  display: block;
  background: #fff;
}
body.dark .popup-dict-frame-wrap { border-color: #344b79; background: #0f1a31; }
body.dark #popupDictFrame { background: #fff; }
#readerVideo iframe#youtubePlayerFrame { width: 100%; min-height: 360px; border: 0; border-radius: 22px; overflow: hidden; }
.reader-text .sentence.youtube-current {
  background: color-mix(in srgb, #7c4dff 22%, transparent) !important;
  box-shadow: 0 0 0 .34em color-mix(in srgb, #7c4dff 16%, transparent) !important;
  border-radius: .42em;
}
body.dark .reader-text .sentence.youtube-current {
  background: rgba(124, 77, 255, .28) !important;
  box-shadow: 0 0 0 .34em rgba(124, 77, 255, .16) !important;
}
.openai-only-tts { opacity: .85; }
.openai-only-tts::after { content: 'OpenAI only'; font-size: .78rem; color: var(--muted); }
@media (max-width: 740px) {
  .word-popup.has-dict-frame { left: 12px !important; right: 12px; width: auto; }
  #popupDictFrame { height: 48vh; }
  #readerVideo iframe#youtubePlayerFrame { min-height: 220px; }
}

/* === v16 orange / reader / TTS fixes === */
:root {
  --brand: #f97316;
  --brand-2: #fb923c;
}
body.dark {
  --brand: #f97316 !important;
  --brand-2: #fb923c !important;
}
button,
.file-btn,
#readerTopSpeakV14,
#readerTopSpeak,
#readerSentenceChallengeV14,
.toc-chip.active,
body.dark .toc-chip.active {
  background: linear-gradient(135deg, #f97316, #fb923c) !important;
  color: #fff7ed !important;
  border-color: rgba(249,115,22,.55) !important;
}
button.ghost,
.file-btn.ghost,
#readerMenuBtnV14,
#readerBackToLibraryV14,
#readerTopStopV16,
#readerChapterMiniV16 button {
  background: var(--panel) !important;
  color: var(--text) !important;
  border: 1px solid var(--line) !important;
}
.nav-btn.active,
.nav-btn:hover,
body.dark .nav-btn.active,
body.dark .nav-btn:hover {
  background: rgba(249,115,22,.12) !important;
  border-color: rgba(249,115,22,.35) !important;
  color: var(--text) !important;
}
.brand-mark,
.lesson-progress-bar > span {
  background: linear-gradient(135deg, #f97316, #fb923c) !important;
}
.reader-text .sentence.active-sentence,
.reader-text .sentence.tts-current,
.reader-text .sentence.youtube-current,
.sentence.tts-current,
.pdf-token.tts-current,
.token.tts-current {
  background: color-mix(in srgb, #f97316 20%, transparent) !important;
  box-shadow: 0 0 0 .34em color-mix(in srgb, #f97316 14%, transparent) !important;
  border-radius: .42em;
}
body.dark .reader-text .sentence.active-sentence,
body.dark .reader-text .sentence.tts-current,
body.dark .reader-text .sentence.youtube-current {
  background: rgba(249,115,22,.25) !important;
  box-shadow: 0 0 0 .34em rgba(249,115,22,.14) !important;
}
body.dark .selected-word,
body.dark #popupWord,
body.dark .target-word,
body.dark .srs-target,
body.dark .current-word {
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
}
body.dark .status-btn.level1,
body.dark .status-btn.level2,
body.dark .status-btn.level3,
body.dark .status-btn.level4,
body.dark [data-popup-status="level1"],
body.dark [data-popup-status="level2"],
body.dark [data-popup-status="level3"],
body.dark [data-popup-status="level4"] {
  background: #1f2937 !important;
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  border: 1px solid #475569 !important;
  opacity: 1 !important;
}
body.dark .status-btn.active,
body.dark [data-popup-status].active {
  background: linear-gradient(135deg, #f97316, #fb923c) !important;
  color: #fff !important;
  border-color: #fdba74 !important;
}
.reader-chapter-mini-v16 {
  max-width: min(980px, 100%);
  margin: -.45rem auto .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .42rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter: blur(12px);
}
.reader-chapter-mini-v16 label {
  display: grid;
  grid-template-columns: auto minmax(160px, 320px);
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  font-weight: 850;
  margin: 0;
}
.reader-chapter-mini-v16 select {
  padding: .48rem .6rem;
  border-radius: 12px;
}
.reader-chapter-mini-v16 button {
  border-radius: 999px;
  min-width: 42px;
  padding: .48rem .65rem;
  box-shadow: none !important;
}
.reader-chapter-mini-v16 button:disabled { opacity: .45; }
#readerTopStopV16 { border-radius: 999px; padding: .62rem .82rem; }
@media (max-width: 700px) {
  .reader-chapter-mini-v16 { flex-wrap: wrap; justify-content: stretch; }
  .reader-chapter-mini-v16 label { flex: 1 1 100%; grid-template-columns: 1fr; }
  .reader-chapter-mini-v16 button { flex: 1; }
}
/* final orange override sweep */
:root, body.dark {
  --enterprise-primary: #f97316 !important;
  --enterprise-primary-2: #fb923c !important;
  --enterprise-accent: #f97316 !important;
}
body:not(.dark) .brand-mark,
.lesson-card-cover {
  background: linear-gradient(135deg, #f97316, #fb923c) !important;
}
.srs-choice,
.clozemaster-choice,
button.srs-choice {
  background: color-mix(in srgb, #f97316 58%, var(--panel)) !important;
  color: #fff7ed !important;
}
.srs-choice.correct { background: #16a34a !important; color:#fff !important; }
.srs-choice.wrong { background: #dc2626 !important; color:#fff !important; }


/* v17 YouTube lesson polish */
.removed-clean-transcript { display: none !important; }
.youtube-timed-note {
  border: 1px solid color-mix(in srgb, var(--brand) 28%, var(--line));
  background: color-mix(in srgb, var(--brand) 9%, var(--panel));
  border-radius: 14px;
  padding: .75rem .9rem;
  margin-top: .75rem;
}
body.youtube-lesson-active #readerTopPause,
body.youtube-lesson-active #readerTopPauseV14,
body.youtube-lesson-active #pauseTtsBtn,
body.youtube-lesson-active #resumeTtsBtn,
body.youtube-lesson-active #ttsStartMode,
body.youtube-lesson-active #openaiTtsLanguage {
  display: none !important;
}
body.youtube-lesson-active #readerTopSpeak,
body.youtube-lesson-active #readerTopSpeakV14,
body.youtube-lesson-active #playTtsBtn {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #211204;
  border-color: transparent;
}
#readerText .sentence.youtube-current {
  background: color-mix(in srgb, var(--brand) 24%, transparent) !important;
  box-shadow: 0 0 0 .34em color-mix(in srgb, var(--brand) 13%, transparent) !important;
  border-radius: .45em;
}
.reader-video iframe#youtubePlayerFrame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 18px;
}


/* v18 fixes: true-black dark mode, SRS answer UI, visible Wiktionary popup, orange accents */
body.dark {
  --bg: #000000 !important;
  --panel: #070707 !important;
  --panel-2: #101010 !important;
  --text: #f7f4ef !important;
  --muted: #b9b1a5 !important;
  --line: #272727 !important;
  --brand: #d46f2c !important;
  --brand-2: #f0a24f !important;
  background: #000000 !important;
}
body.dark .sidebar,
body.dark .panel,
body.dark .reader-tools-panel,
body.dark .reader-tools-drawer,
body.dark .word-popup,
body.dark .compact-menu[open],
body.dark .global-more-menu[open],
body.dark input,
body.dark select,
body.dark textarea,
body.dark button.ghost,
body.dark .file-btn.ghost {
  background-color: #070707 !important;
  border-color: #272727 !important;
}
body.dark .reader-text,
body.dark .reader-text.theme-paper,
body.dark .reader-text.theme-cream,
body.dark .reader-text.theme-forest,
body.dark .reader-text.theme-midnight,
body.dark .reader-text.theme-black,
body.dark .reader-text.theme-slate {
  background: #000000 !important;
  color: #f7f4ef !important;
  border-color: #272727 !important;
}
body.dark .selected-word,
body.dark #popupWord,
body.dark .big-card-word,
body.dark .target-word {
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
}
.word-popup.has-dict-frame {
  width: min(680px, calc(100vw - 24px)) !important;
  max-height: min(86vh, 820px) !important;
  overflow: auto !important;
}
.popup-dict-frame-wrap {
  display: block !important;
  margin-top: .75rem !important;
}
#popupDictFrame {
  display: block !important;
  width: 100% !important;
  height: min(52vh, 520px) !important;
  border: 0 !important;
  background: #fff !important;
}
.srs-choice-grid {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: .8rem !important;
  margin-top: 1.2rem !important;
}
.srs-choice {
  min-height: 58px !important;
  font-size: 1.08rem !important;
  justify-content: center !important;
}
.srs-choice.correct {
  background: #198754 !important;
  color: #fff !important;
}
.srs-choice.wrong {
  background: #b84545 !important;
  color: #fff !important;
}
.srs-fill {
  display: grid !important;
  gap: .8rem !important;
  margin-top: 1.2rem !important;
}
#srsFillInput {
  font-size: 1.25rem !important;
  padding: 1rem !important;
}
.enterprise-review-window,
#flashcard {
  min-height: 420px !important;
}
.srs-cloze-line {
  font-size: clamp(1.45rem, 3vw, 2.35rem) !important;
  line-height: 1.55 !important;
}
#srsCardType option[value="morphology"] { display: none !important; }
.youtube-player-frame,
#readerVideo #youtubePlayerFrame,
#readerVideo iframe#youtubePlayerFrame {
  width: 100% !important;
  aspect-ratio: 16 / 9 !important;
  min-height: 360px !important;
  border: 0 !important;
  border-radius: 22px !important;
  overflow: hidden !important;
  background: #000 !important;
}
.reader-text .sentence.youtube-current {
  background: color-mix(in srgb, var(--brand) 24%, transparent) !important;
  box-shadow: 0 0 0 .35em color-mix(in srgb, var(--brand) 16%, transparent) !important;
  border-radius: .4em !important;
}


/* === v19 reader tools edit/pdf fix === */
.reader-enterprise-top.v19-reader-top {
  position: relative;
  z-index: 5;
}

.reader-tools-open {
  min-width: 86px;
}

.reader-tools-drawer {
  position: fixed !important;
  inset: 0 !important;
  z-index: 2147483000 !important;
  background: rgba(0,0,0,.48) !important;
  display: flex;
  justify-content: flex-end;
}

.reader-tools-drawer.hidden {
  display: none !important;
}

.reader-tools-panel.v19-tools-panel {
  width: min(480px, 94vw);
  height: 100%;
  overflow: auto;
  background: var(--panel);
  color: var(--text);
  border-left: 1px solid var(--line);
  box-shadow: -24px 0 70px rgba(0,0,0,.26);
  padding: 1rem;
}

.v19-tools-head {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding-bottom: .8rem;
  margin-bottom: .8rem;
}

.v19-tool-section {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: .9rem;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
  margin-bottom: .9rem;
}

.v19-tool-section h4 {
  margin: 0 0 .65rem;
}

.v19-tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .55rem;
}

.v19-tool-grid button {
  width: 100%;
}

.reader-tools-mount {
  display: grid;
  gap: .85rem;
}

.reader-tools-mount > * {
  max-width: 100% !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.reader-tools-mount .reader-controls {
  display: flex !important;
}

.reader-tools-mount .reader-toc,
.reader-tools-mount .reader-chapter-nav,
.reader-tools-mount .audio-box,
.reader-tools-mount .reader-controls {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
  padding: .8rem;
}

body.dark .reader-tools-panel.v19-tools-panel,
body.dark .v19-tools-head {
  background: #050505;
  color: #f4f4f5;
  border-color: #242424;
}

body.dark .v19-tool-section,
body.dark .reader-tools-mount .reader-toc,
body.dark .reader-tools-mount .reader-chapter-nav,
body.dark .reader-tools-mount .audio-box,
body.dark .reader-tools-mount .reader-controls {
  background: #0b0b0b;
  border-color: #242424;
}

@media (max-width: 640px) {
  .v19-tool-grid { grid-template-columns: 1fr; }
}

/* v20 SRS/readability fixes */
.srs-choice-grid.srs-choice-list,
.srs-choice-grid {
  grid-template-columns: 1fr !important;
  width: min(760px, 100%);
  margin-left: auto;
  margin-right: auto;
}
.srs-choice-grid.srs-choice-list .srs-choice,
.srs-choice-grid .srs-choice {
  display: block;
  width: 100%;
  text-align: left;
  padding: 1rem 1.15rem;
}
.srs-inline-actions {
  display: flex;
  gap: .65rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: .8rem;
}
.srs-fill-v20 {
  width: min(620px, 100%);
  margin: 1rem auto 0;
}
.srs-fill-v20 label { text-align: left; }
#srsNextCardBtn:not(.hidden) { display: inline-flex; }
body.youtube-lesson-active #readerTopPause,
body.youtube-lesson-active #pauseTtsBtn,
body.youtube-lesson-active #resumeTtsBtn { display: none !important; }
.youtube-sync-note { margin-top: .5rem; text-align: center; }
#readerText .sentence.youtube-current {
  background: color-mix(in srgb, var(--brand) 20%, transparent) !important;
  box-shadow: 0 0 0 .34em color-mix(in srgb, var(--brand) 12%, transparent) !important;
  border-radius: .45em;
}

/* v22 SRS clarity */
.srs-next-primary {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  padding: 0.95rem 1.25rem;
  border-radius: 18px;
  font-size: 1.08rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #211305;
  border: 0;
  box-shadow: 0 14px 32px rgba(212,111,44,.24);
}
.srs-card-actions { align-items: center; }
#showAnswerBtn.hidden { display: none !important; }
body.dark .srs-next-primary { color: #150d04; }

/* === v23 tools/sidebar + SRS polish === */
.reader-tools-drawer.v23-right-tools {
  position: fixed !important;
  inset: 0 !important;
  z-index: 2147483600 !important;
  display: flex !important;
  justify-content: flex-end !important;
  align-items: stretch !important;
  background: rgba(0,0,0,.42) !important;
}
.reader-tools-drawer.v23-right-tools.hidden { display: none !important; }
.reader-tools-panel.v23-tools-panel {
  width: min(430px, 94vw) !important;
  max-width: 94vw !important;
  height: 100vh !important;
  margin: 0 !important;
  overflow: auto !important;
  border-radius: 0 !important;
  border-left: 1px solid var(--line) !important;
  box-shadow: -24px 0 70px rgba(0,0,0,.30) !important;
}
.v23-language-picker.hidden { display:none !important; }
.v23-language-picker { margin-top:.8rem; }
body.dark .reader-tools-panel.v23-tools-panel { background:#050505 !important; color:#f8fafc !important; border-color:#242424 !important; }
body.dark .v23-tools-head, body.dark .v19-tool-section { background:#0b0b0b !important; border-color:#242424 !important; }
#dojoView select, .dojo-enterprise-shell select { pointer-events:auto !important; position:relative !important; z-index:20 !important; }

#flashcard.srs-answered-correct, #flashcard.srs-answered-correct .enterprise-srs-card { border-color:#22c55e !important; box-shadow:0 0 0 3px rgba(34,197,94,.25), 0 20px 50px rgba(0,0,0,.12) !important; }
#flashcard.srs-answered-wrong, #flashcard.srs-answered-wrong .enterprise-srs-card { border-color:#ef4444 !important; box-shadow:0 0 0 3px rgba(239,68,68,.25), 0 20px 50px rgba(0,0,0,.12) !important; }
.srs-xp-badge { display:inline-flex; align-self:flex-start; margin-bottom:.75rem; padding:.38rem .7rem; border-radius:999px; background:#dcfce7; color:#166534; font-weight:900; letter-spacing:.02em; border:1px solid #86efac; }
.srs-xp-badge.hidden { display:none !important; }
.srs-cloze-answer { display:inline-block; padding:.05em .38em; border-radius:.45em; background:#dcfce7; color:#14532d; font-weight:900; }
.srs-cloze-blank { font-weight:900; letter-spacing:.08em; color:var(--brand); }
.srs-choice-grid.v23-stacked-choices, .v23-stacked-choices { display:grid !important; grid-template-columns:1fr !important; gap:.65rem !important; width:min(760px,100%) !important; margin:1rem auto !important; }
.v23-stacked-choices .srs-choice { width:100% !important; justify-content:flex-start !important; text-align:left !important; padding:1rem 1.1rem !important; border-radius:16px !important; }
.srs-answer-reveal { margin-top:.85rem; padding:.9rem; border-radius:18px; background:color-mix(in srgb, var(--panel) 84%, var(--bg)); border:1px solid var(--line); }
.srs-next-primary { display:inline-flex !important; align-items:center; justify-content:center; gap:.45rem; min-width:180px; min-height:52px; border-radius:999px !important; font-size:1.05rem; font-weight:900; margin-left:auto; background:linear-gradient(135deg, var(--brand), var(--brand-2)) !important; color:#20140a !important; border:0 !important; }
.srs-next-primary.hidden { display:none !important; }
body.dark .srs-xp-badge, body.dark .srs-cloze-answer { background:#052e16; color:#dcfce7; border-color:#166534; }
body.dark .srs-answer-reveal { background:#0b0b0b; border-color:#242424; }

/* Local Lingua v24 tools/sidebar + TOC placement polish */
.reader-nav-stack-v24 {
  max-width: min(980px, 100%);
  margin: 0.75rem auto 0.8rem;
  display: grid;
  gap: 0.45rem;
}
.reader-nav-stack-v24 .reader-toc,
.reader-nav-stack-v24 .reader-chapter-nav {
  margin: 0;
  max-width: none;
}
.reader-nav-stack-v24 .reader-chapter-nav {
  justify-content: center;
  padding: 0.35rem 0 0;
}
.reader-right-tools-v24 {
  display: grid;
  gap: 0.9rem;
}
.reader-right-tools-v24.hidden,
#wordPanelDictionaryContentV24.hidden { display: none !important; }
.v24-tools-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.7rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}
.v24-tools-head h3 { margin: 0; }
.v24-tool-section {
  display: grid;
  gap: 0.65rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 82%, var(--bg));
}
.v24-tool-section h4 { margin: 0; font-size: 0.95rem; letter-spacing: .01em; }
.v24-tool-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0.55rem; }
.v24-tool-grid button { min-width: 0; padding: 0.64rem 0.72rem; }
.v24-tool-grid button.success { color: var(--success); }
.v24-mounted-controls { display: grid; gap: 0.6rem; }
.v24-mounted-controls .reader-controls,
.v24-mounted-controls .audio-box {
  display: grid !important;
  grid-template-columns: 1fr;
  gap: 0.6rem;
  max-width: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.v24-mounted-controls .reader-controls label { min-width: 0; }
.v24-mounted-controls .reader-controls button,
.v24-mounted-controls .reader-controls .file-btn { width: 100%; }
body.dark .v24-tool-section {
  background: #0b0b0b;
  border-color: #2b2b2b;
}
body.dark .reader-nav-stack-v24 .toc-chip,
body.dark .reader-nav-stack-v24 .reader-chapter-nav button {
  background: #111;
  border-color: #333;
}
body.dark .reader-nav-stack-v24 .toc-chip.active {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #1b1009;
}
@media (max-width: 940px) {
  .v24-tool-grid { grid-template-columns: 1fr; }
}

/* === Local Lingua v25: full reader tools, compact word popup, dictionary side panel === */
.word-popup,
.word-popup.has-dict-frame,
body.dark .word-popup,
body.dark .word-popup.has-dict-frame {
  width: min(300px, calc(100vw - 24px)) !important;
  max-width: min(300px, calc(100vw - 24px)) !important;
  max-height: 340px !important;
  overflow: auto !important;
  padding: .75rem !important;
  border-radius: 18px !important;
}
.word-popup .popup-dict-frame-wrap,
.word-popup #popupDictFrame { display: none !important; }
.word-popup-head strong { font-size: 1.05rem !important; }
.word-popup .popup-translation { font-size: .9rem; line-height: 1.35; padding: .55rem; }
.word-popup .popup-actions { gap: .35rem; }
.word-popup .status-btn { min-width: 38px; min-height: 38px; padding: .35rem !important; }
#wordPanelDictionaryContentV24 #dictFrame,
#dictFrame {
  min-height: 420px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: #fff;
}
.v25-display-tools { order: 3; }
.v25-control-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .62rem;
}
.v25-control-grid label,
.v25-checks label {
  font-size: .88rem;
}
.v25-checks {
  display: grid;
  gap: .45rem;
  padding: .7rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 90%, var(--bg));
}
.v25-checks label {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 750;
}
.v25-checks input[type="checkbox"] { width: auto; }
#readerRightToolsV24 .reader-controls,
#readerRightToolsV24 .audio-box {
  display: grid !important;
  gap: .6rem !important;
}
#readerRightToolsV24 .reader-controls label,
#readerRightToolsV24 .audio-box label { width: 100%; }
body.dark .v25-checks { background:#080808; border-color:#292929; }

/* Immersion v26 visual polish: stronger brand, grey/black dark mode, richer reader tools */
:root {
  --immersion-orange: #f97316;
  --immersion-orange-2: #ffb86b;
  --immersion-ink: #17130f;
}
.brand {
  align-items: center;
  padding: .35rem .2rem .55rem;
}
.brand-mark {
  width: 62px;
  height: 62px;
  border-radius: 22px;
  font-size: 2.45rem;
  color: #231306;
  background: radial-gradient(circle at 25% 20%, #ffe5c2 0 12%, transparent 36%), linear-gradient(135deg, #ff7a18 0%, #ffb86b 46%, #f97316 100%);
  box-shadow: 0 16px 34px rgba(249,115,22,.34), inset 0 1px 0 rgba(255,255,255,.38);
}
.brand h1 {
  font-size: 1.55rem;
  letter-spacing: -.055em;
  line-height: .95;
  background: linear-gradient(135deg, #20140a 0%, #e76713 72%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand p {
  font-size: .84rem;
  font-weight: 750;
  color: color-mix(in srgb, var(--brand) 72%, var(--muted));
  letter-spacing: .01em;
}
body.dark {
  --bg: #090909;
  --panel: #141414;
  --panel-2: #1d1d1d;
  --text: #f2f0ec;
  --muted: #aaa39a;
  --line: #303030;
  --brand: #ff8a2a;
  --brand-2: #ffc07a;
  --shadow: 0 20px 50px rgba(0,0,0,.58);
  background: radial-gradient(circle at top left, rgba(249,115,22,.18), transparent 26%), linear-gradient(180deg, #101010 0%, #050505 100%);
}
body.dark .sidebar {
  background: rgba(12,12,12,.94) !important;
  border-right-color: #282828 !important;
}
body.dark .brand h1 {
  background: linear-gradient(135deg, #fff8ef 0%, #ff9b45 78%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
body.dark .brand p { color: #d7aa80; }
body.dark .brand-mark {
  color: #1a0d02;
  box-shadow: 0 16px 38px rgba(255,138,42,.24), inset 0 1px 0 rgba(255,255,255,.35);
}
body.dark .panel,
body.dark .goal-card,
body.dark .avatar-card,
body.dark button.ghost,
body.dark .file-btn.ghost,
body.dark input,
body.dark select,
body.dark textarea,
body.dark .reader-controls,
body.dark .word-panel.panel,
body.dark .word-popup,
body.dark .popup-translation,
body.dark .sentence-box,
body.dark .morph-tree,
body.dark .iframe-panel,
body.dark #dictFrame,
body.dark .reader-right-tools-v24 {
  background: #141414 !important;
  border-color: #303030 !important;
  color: #f2f0ec !important;
}
body.dark .nav-btn.active,
body.dark .nav-btn:hover,
body.dark .toc-chip.active {
  background: rgba(255,138,42,.15) !important;
  border-color: rgba(255,138,42,.42) !important;
  color: #ffd4aa !important;
}
body.dark .reader-text,
body.dark .reader-text.theme-paper,
body.dark .reader-text.theme-cream,
body.dark .reader-text.theme-forest,
body.dark .reader-text.theme-midnight,
body.dark .reader-text.theme-black,
body.dark .reader-text.theme-slate {
  background: #050505 !important;
  color: #f4f1e8 !important;
  border-color: #2c2c2c !important;
}
body.dark .selected-word { color: #fff !important; }
body.dark .token.selected {
  color: #fff !important;
  outline-color: #ff9b45 !important;
}
body.dark .reader-text .sentence.active-sentence,
body.dark .reader-text .sentence.tts-current,
body.dark .sentence.tts-current,
body.dark .pdf-token.tts-current,
body.dark .token.tts-current {
  background: rgba(255,138,42,.18) !important;
  box-shadow: 0 0 0 .34em rgba(255,138,42,.11) !important;
}
.v26-appearance-tools select,
.v26-appearance-tools input[type="range"] { width: 100%; }
.v26-control-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#readerText .sentence { margin-block: var(--reader-paragraph-gap-v26, 0.35em); }
#dictFrame {
  min-height: 56vh;
  border-radius: 18px;
}
.word-popup {
  max-width: 330px !important;
}
.word-popup iframe,
.word-popup .popup-dict-frame-wrap,
#popupDictFrame { display: none !important; }
.youtube-sync-note::before {
  content: '▶ ';
  color: var(--brand);
  font-weight: 900;
}
@media (max-width: 760px) {
  .v26-control-grid { grid-template-columns: 1fr; }
  .brand-mark { width: 54px; height: 54px; }
}

/* Immersion v27 final polish */
.brand { gap: .95rem; }
.brand-mark {
  background: linear-gradient(135deg, #f97316 0%, #ea580c 50%, #fb923c 100%) !important;
  color: #fff !important;
  border-radius: 20px !important;
  box-shadow: 0 14px 34px rgba(249,115,22,.34), inset 0 -8px 22px rgba(0,0,0,.14), inset 0 1px 0 rgba(255,255,255,.4) !important;
  font-size: 2.35rem !important;
  line-height: 1 !important;
  font-weight: 1000 !important;
  transform: rotate(-3deg);
}
.brand h1 { font-size: 1.42rem !important; letter-spacing: -.045em; font-weight: 1000; }
.brand p { color: color-mix(in srgb, var(--brand) 54%, var(--muted)); font-weight: 800; }
body.dark .brand p { color: #d4d4d8; }
body.dark {
  --bg: #0b0b0c;
  --panel: #151516;
  --panel-2: #1f1f21;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --line: #333336;
  --brand: #f97316;
  --brand-2: #fb923c;
  --shadow: 0 18px 52px rgba(0,0,0,.52);
  background: radial-gradient(circle at top left, rgba(249,115,22,.14), transparent 28%), linear-gradient(180deg, #111112 0%, #050505 100%) !important;
}
body.dark .sidebar, body.dark .panel, body.dark .word-popup, body.dark input, body.dark select, body.dark textarea {
  background-color: #151516 !important;
  border-color: #333336 !important;
}
body.dark .nav-btn.active, body.dark .nav-btn:hover { background: rgba(249,115,22,.12) !important; border-color: rgba(249,115,22,.45) !important; color: #fed7aa !important; }
body.dark .reader-text, body.dark .reader-text.theme-midnight, body.dark .reader-text.theme-paper, body.dark .reader-text.theme-cream, body.dark .reader-text.theme-forest {
  background: #080808 !important;
  color: #f5f5f4 !important;
  border-color: #2f2f32 !important;
}
.yt-v27-shell { position: relative; border: 1px solid var(--line); border-radius: 24px; overflow: hidden; background: #0a0a0a; margin-bottom: .9rem; box-shadow: var(--shadow); }
.yt-v27-frame-mount { width: 100%; aspect-ratio: 16/9; background: linear-gradient(135deg, #111827, #050505); display: grid; place-items: center; }
.yt-v27-frame-mount iframe { width: 100%; height: 100%; border: 0; display: block; }
.yt-v27-start { position: absolute; inset: 0; display: grid; place-items: center; align-content: center; gap: .45rem; width: 100%; min-height: 240px; border-radius: 0; background: linear-gradient(135deg, rgba(10,10,10,.86), rgba(249,115,22,.18)); color: #fff; text-align: center; box-shadow: none; z-index: 2; }
.yt-v27-start span { width: 72px; height: 72px; border-radius: 50%; display: grid; place-items: center; background: #f97316; box-shadow: 0 14px 40px rgba(249,115,22,.42); font-size: 2rem; }
.yt-v27-start strong { font-size: 1.35rem; }
.yt-v27-start small { max-width: 420px; color: #fed7aa; }
.yt-v27-note { padding: .7rem 1rem; background: color-mix(in srgb, var(--panel) 88%, transparent); }
.reader-text .sentence.youtube-current { background: rgba(249,115,22,.21) !important; box-shadow: 0 0 0 .32em rgba(249,115,22,.12) !important; border-radius: .45em; }
.reader-right-tools-v24 { display: grid; gap: 1rem; }
.reader-right-tools-v24.hidden { display: none !important; }
.v27-tools-head { display: flex; align-items: flex-start; justify-content: space-between; gap: .8rem; border-bottom: 1px solid var(--line); padding-bottom: .75rem; margin-bottom: .8rem; }
.v27-tools-head h3 { margin: 0; }
.v27-tool-section { border: 1px solid var(--line); border-radius: 18px; padding: .85rem; background: color-mix(in srgb, var(--panel-2) 50%, transparent); }
.v27-tool-section h4 { margin: 0 0 .65rem; }
.v27-control-grid { display: grid; grid-template-columns: 1fr; gap: .7rem; }
.v27-control-grid button { width: 100%; }
.v27-checks { display: grid; gap: .5rem; }
.v27-checks label { display: flex; align-items: center; gap: .55rem; font-weight: 750; }
.v27-checks input { width: auto; }
#wordPanelDictionaryContentV24:not(.hidden), #selectionDetails:not(.hidden) { display: block; }
#iframeNotice { margin-bottom: .6rem; }
#dictFrame, .dict-frame-default-open { display: block !important; width: 100%; min-height: 420px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
body.dark #dictFrame { background: #fff !important; }
.word-popup { max-width: 310px !important; padding: .75rem !important; border-radius: 18px !important; }
.word-popup .iframe-panel, .word-popup iframe, .popup-dict-frame-wrap { display:none !important; }
.llr-trainer-card { max-width: min(1100px, 96vw) !important; }
.trainer-checked-mode #llrTrainerSource, .trainer-checked-mode label:has(#llrTrainerAnswer), .trainer-checked-mode .llr-trainer-nav, .trainer-checked-mode #llrTrainerDots { opacity: .35; }
.side-by-side-correction { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; align-items: start; }
.side-by-side-correction > div { border: 1px solid var(--line); border-radius: 14px; padding: .8rem; background: color-mix(in srgb, var(--panel) 85%, var(--bg)); }
.trainer-user-correction del, .dojo-box del { color: #dc2626; background: rgba(220,38,38,.1); text-decoration-thickness: 2px; }
.trainer-user-correction ins, .trainer-ai-corrected, .side-by-side-correction ins { color: #16a34a; background: rgba(22,163,74,.1); text-decoration: none; font-weight: 800; }
.dojo-speaking-essays-v27 { margin-top: 1rem; }
.dojo-speaking-essay-list { display: grid; gap: .7rem; max-height: 520px; overflow: auto; }
.dojo-speaking-essay { text-align: left; background: color-mix(in srgb, var(--panel) 88%, var(--bg)); color: var(--text); border: 1px solid var(--line); border-radius: 16px; box-shadow: none; }
.dojo-speaking-essay.active { border-color: var(--brand); box-shadow: 0 0 0 2px rgba(249,115,22,.18); }
.dojo-speaking-essay p { margin: .45rem 0 0; color: var(--muted); line-height: 1.45; }
#dojoView details[open] { overflow: visible; }
#dojoView details > summary { cursor: pointer; user-select: none; }
.srs-choice-grid, .v23-stacked-choices { display: grid !important; grid-template-columns: 1fr !important; gap: .7rem !important; }
.enterprise-srs-card { transition: border-color .18s ease, box-shadow .18s ease; }
.srs-answered-correct .enterprise-srs-card, #flashcard.srs-answered-correct { border-color: #16a34a !important; box-shadow: 0 0 0 3px rgba(22,163,74,.22) !important; }
.srs-answered-wrong .enterprise-srs-card, #flashcard.srs-answered-wrong { border-color: #dc2626 !important; box-shadow: 0 0 0 3px rgba(220,38,38,.2) !important; }
@media (max-width: 850px){ .side-by-side-correction { grid-template-columns: 1fr; } }


/* Immersion v28 final visual/behavior fixes */
body:not(.dark) .brand h1 {
  background: none !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;
  color: #111111 !important;
  text-shadow: none !important;
}
body:not(.dark) .brand p { color: #5f4938 !important; }
.v28-fixed-dictionary-pane {
  display: block !important;
  margin: .85rem 0 1rem;
  padding: .85rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 90%, var(--bg));
}
.v28-fixed-dictionary-pane .iframe-tabs {
  display: flex !important;
}
#dictFrame.v28-dict-frame-open,
.v28-fixed-dictionary-pane #dictFrame {
  display: block !important;
  width: 100% !important;
  min-height: 58vh !important;
  height: clamp(460px, 62vh, 760px) !important;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
body.dark .v28-fixed-dictionary-pane {
  background: #121212;
  border-color: #303030;
}
body.dark #dictFrame.v28-dict-frame-open,
body.dark .v28-fixed-dictionary-pane #dictFrame {
  background: #fff;
}
.yt-v28-shell {
  position: relative;
  min-height: 260px;
  border-radius: 24px;
  overflow: hidden;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: radial-gradient(circle at 30% 20%, rgba(249,115,22,.35), transparent 30%), linear-gradient(135deg, #171717, #050505);
  color: #fff;
}
.yt-v28-card {
  position: relative;
  max-width: 460px;
  text-align: center;
  padding: 1.2rem;
  border-radius: 22px;
  background: rgba(0,0,0,.48);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.16);
}
.yt-v28-card strong { font-size: 1.35rem; }
.yt-v28-card p { color: rgba(255,255,255,.82); }
#ytV28PlayBtn {
  background: linear-gradient(135deg, #f97316, #ffb86b);
  color: #20140a;
}
.yt-v28-player,
.yt-v28-player iframe,
#ytV28Player,
#ytV28Player iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 320px;
  border: 0;
  border-radius: 22px;
  overflow: hidden;
}
.reader-text .sentence.youtube-current {
  background: color-mix(in srgb, var(--brand) 22%, transparent) !important;
  box-shadow: 0 0 0 .34em color-mix(in srgb, var(--brand) 13%, transparent) !important;
  border-radius: .4em;
}

/* Immersion v30: permanent Wiktionary sidebar frame */
#readerView .word-panel #wordPanelDictionaryContentV24 {
  display: block;
}
#readerView .word-panel #wordPanelDictionaryContentV24.hidden:not(:has(+ #readerRightToolsV24:not(.hidden))) {
  display: block !important;
}
#readerView .word-panel .iframe-panel.persistent-wiktionary-v30 {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
#readerView .word-panel .iframe-panel.persistent-wiktionary-v30 .iframe-tabs {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .5rem;
}
#readerView .word-panel .iframe-panel.persistent-wiktionary-v30 .dict-frame-btn[data-frame="wiktionary"] {
  display: none !important;
}
#dictFrame.v30-wiktionary-frame,
#dictFrame.dict-frame-default-open {
  display: block !important;
  width: 100% !important;
  min-height: 58vh !important;
  height: clamp(480px, 62vh, 820px) !important;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}
body.dark #dictFrame.v30-wiktionary-frame,
body.dark #dictFrame.dict-frame-default-open {
  background: #fff;
  border-color: #3a3a3a;
}
body.dark #readerView .word-panel .iframe-panel.persistent-wiktionary-v30 {
  border-top-color: #3a3a3a;
}