/* ==========================================================================
   Question Bank, Native Math Stem & Solution Cards (bank.css)
   ========================================================================== */

.bank-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin: 4px 0 16px;
}
.bank-heading h1 {
  font-size: 34px;
  margin: 4px 0 6px;
  letter-spacing: 2px;
}
.bank-heading p:last-child {
  color: var(--muted);
  font-size: 12px;
}

/* Unified Filter Console */
.bank-filter-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 18px 12px;
  margin-bottom: 12px;
  box-shadow: 0 2px 10px rgba(23, 79, 70, 0.03);
}
.bank-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.bank-search {
  flex: 1;
  max-width: 520px;
}
.bank-toolbar input,
.bank-toolbar select {
  width: 100%;
  height: 42px;
  min-height: 42px;
  padding: 0 13px;
  background-color: #f6f8f4;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--ink);
  min-width: 0;
  box-sizing: border-box;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.bank-toolbar input:focus,
.bank-toolbar select:focus {
  background-color: var(--surface);
  border-color: var(--green);
  outline: 2px solid rgba(23, 79, 70, 0.15);
}
.bank-toolbar > .text-button {
  margin-left: auto;
}

/* Feature Tag Filter Bar */
.bank-feature-filter {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 8px 0 0;
  padding: 10px 0 2px;
  border-top: 1px solid #e7ece4;
}
.bank-feature-label {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  padding: 4px 0;
}
.bank-feature-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}
.bank-feature-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: #f2f5ef;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.45;
  cursor: pointer;
  transition: all 0.15s ease;
}
.bank-feature-button small {
  font: 10px/1.4 var(--body);
  color: var(--muted);
}
.bank-feature-button:hover {
  border-color: #cbd9c9;
  background: #e6eee2;
}
.bank-feature-button[aria-pressed="true"] {
  color: #fff;
  background: var(--green);
  border-color: var(--green);
  box-shadow: 0 2px 6px rgba(23, 79, 70, 0.18);
}
.bank-feature-button[aria-pressed="true"] small {
  color: #e0ebe4;
}
.bank-feature-button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Sticky Batch Selection Bar */
.bank-selection {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  padding: 10px 14px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(247, 246, 240, 0.92);
  backdrop-filter: blur(8px);
}
.bank-selection > p {
  font-size: 12px;
}
.bank-selection b {
  font-weight: 600;
  color: var(--green);
}
.bank-selection .button {
  font-size: 12px;
  padding: 8px 16px;
  min-height: 36px;
}

/* Question Bank Card */
.bank-card {
  padding: 22px 26px 18px;
  margin-bottom: 20px;
  border: 1px solid #d5ddd1;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 3px 12px rgba(23, 58, 46, 0.03);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.bank-card:hover {
  border-color: #b7c8b8;
  box-shadow: 0 6px 20px rgba(23, 58, 46, 0.06);
}
.bank-card.selected {
  border-color: #548575;
  box-shadow: inset 4px 0 0 var(--green), 0 4px 16px rgba(23, 79, 70, 0.07);
}
.bank-card-heading {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 9px;
}
.bank-card-heading h2 {
  flex: 1;
  min-width: 0;
  font-family: var(--body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
.bank-card-heading .badge {
  flex-shrink: 0;
  font-size: 10px;
}
.bank-check {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  flex-shrink: 0;
}
.bank-check input {
  accent-color: var(--green);
  width: 17px;
  height: 17px;
  margin: 0;
}
.bank-check input:disabled {
  opacity: 0.4;
  cursor: default;
}
.bank-check span {
  font-family: Georgia, serif;
  color: #788875;
  font-size: 15px;
}
.bank-source {
  font-size: 13px;
  line-height: 1.8;
  color: var(--green);
  margin: 0 0 14px 58px;
  overflow-wrap: anywhere;
}
.bank-source > span {
  font-size: 10px;
  color: #5b6e63;
  margin-right: 8px;
  padding: 2px 7px;
  background: #edf2e9;
  border-radius: 3px;
}
.bank-source.missing {
  color: #7b8479;
  font-size: 12px;
}

/* Native Question Stem & Figures */
.bank-card-content {
  min-width: 0;
  scroll-margin-top: 90px;
}
.bank-question-panel {
  min-width: 0;
}
.bank-native-question {
  font-family: var(--display);
  font-size: 17px;
  line-height: 1.85;
  color: #222d29;
  padding: 4px 4px 8px;
  overflow-wrap: anywhere;
}
.bank-native-question p {
  margin: 0 0 8px;
}
.bank-native-question p:last-child {
  margin-bottom: 0;
}
.stem-letter,
.stem-number,
.stem-formula math,
.stem-formula math * {
  font-family: "Times New Roman", Times, serif;
}
.stem-letter,
.stem-formula mi {
  font-style: italic;
}
.stem-number,
.stem-formula mn,
.stem-formula mo,
.stem-formula mi.math-upright {
  font-style: normal;
}
.stem-formula,
.solution-body .stem-formula {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  column-gap: 0.15em;
  row-gap: 0.35em;
  max-width: 100%;
  overflow: visible;
  vertical-align: middle;
  white-space: normal;
}
.stem-formula.formula-display,
.solution-body .stem-formula.formula-display {
  display: flex;
  margin: 10px 0;
}
.stem-formula math {
  font-size: 1.05em;
  math-style: normal;
  overflow: visible;
}
.stem-formula math[display="block"] {
  margin: 10px 0;
  max-width: 100%;
  overflow: visible;
}
.solution-body math[display="block"] {
  margin: 0;
  padding: 3px 0;
  width: max-content;
  max-width: none;
}
.stem-error {
  color: var(--error);
  font-size: 13px;
}
.native-pending {
  padding: 30px 5px;
  color: var(--muted);
  font-size: 13px;
}
.native-figures {
  display: flex;
  align-items: start;
  justify-content: flex-start;
  gap: 16px;
  margin: 12px 0 4px;
  flex-wrap: wrap;
}
.native-figure {
  margin: 0;
  flex: 0 1 220px;
  min-width: 0;
  max-width: 100%;
  text-align: center;
}
.native-figure img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 190px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}
.native-figure figcaption {
  font-family: var(--body);
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
  margin-top: 5px;
}
.native-figure a {
  display: block;
  cursor: zoom-in;
}

.bank-question-button {
  display: block;
  width: 100%;
  border: 0;
  background: white;
  padding: 0;
  cursor: zoom-in;
  text-align: left;
}
.bank-question-image {
  display: block;
  width: 100%;
  height: auto;
  min-height: 130px;
}
.bank-preview-error {
  display: block;
  text-align: center;
  padding: 65px 15px;
  color: var(--muted);
  font-size: 13px;
  background: #f4f6f0;
}
.bank-question-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 9px 0 14px;
  font-size: 10px;
  color: #7e887d;
}
.bank-question-caption .text-button {
  font-size: 11px;
  color: var(--green);
  padding: 0;
}

/* Inline & Student Solution Cards */
.bank-inline-solution {
  min-width: 0;
  margin: 0 0 14px;
  background: #f3f6ef;
  border: 1px solid #dce4d7;
  border-radius: 6px;
}
.bank-inline-solution > header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 14px;
  font-size: 12px;
  color: var(--green);
}
.bank-inline-solution > header > span {
  white-space: nowrap;
  font-weight: 500;
}
.bank-inline-solution > header small {
  font-size: 10px;
  font-weight: 400;
  color: var(--muted);
  margin-left: 5px;
}
.bank-inline-solution > header > div {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-left: auto;
}
.bank-inline-solution > header a {
  font-size: 11px;
}
.bank-inline-solution > header .text-button {
  font-size: 12px;
  font-weight: 500;
  padding: 2px 0;
  color: var(--green);
}
.bank-inline-solution-content {
  padding: 0 12px 12px;
}
.bank-inline-solution .solution-card {
  padding: 18px;
}
.bank-inline-solution .solution-card > header {
  gap: 8px;
}
.bank-inline-solution .solution-card h3 {
  font-size: 13px;
}

.solution-cards {
  display: grid;
  gap: 16px;
  min-width: 0;
  user-select: text;
}
.solution-card {
  min-width: 0;
  background: #fff;
  border: 1px solid #dce3d9;
  border-radius: 8px;
  padding: 22px 26px;
  box-shadow: 0 2px 6px rgba(23, 58, 46, 0.03);
}
.solution-card > header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid #edf0e9;
  padding-bottom: 11px;
  margin-bottom: 14px;
}
.solution-index {
  font: italic 15px Georgia, serif;
  color: #7e9989;
  flex-shrink: 0;
}
.solution-card h3 {
  font-family: var(--body);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  overflow-wrap: anywhere;
}
.solution-body {
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.95;
  color: #25332b;
  overflow-wrap: anywhere;
}
.solution-body p {
  margin: 0 0 12px;
}
.solution-body p:last-child {
  margin-bottom: 0;
}
.solution-figures {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  margin: 18px 0 0;
}
.solution-figures figure {
  margin: 0;
  max-width: 100%;
  flex: 0 1 420px;
  min-width: 0;
}
.solution-figures img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 360px;
  object-fit: contain;
  margin: auto;
}
.solution-figures a {
  display: block;
  cursor: zoom-in;
}
.solution-figures figcaption {
  font: 11px/1.6 var(--body);
  color: var(--muted);
  text-align: center;
  margin-top: 8px;
}
.solution-reading {
  padding: 22px;
  background: #f0f3ed;
}
.solution-reading > .solution-cards {
  max-width: 860px;
  margin: auto;
}
.solution-reading.text-enlarged .solution-body {
  font-size: 20px;
}

/* Bank Card Metadata, Tags & Footer */
.bank-tags {
  padding: 14px 0 4px;
  border-top: 1px solid #edf0e9;
  font-size: 12px;
  line-height: 1.8;
}
.bank-feature-tags,
.bank-knowledge-tags {
  display: flex;
  align-items: baseline;
  gap: 7px;
  flex-wrap: wrap;
}
.tag-heading {
  color: var(--muted);
  font-size: 11px;
  margin-right: 4px;
}
.feature-tag {
  color: #77501f;
  background: #f6eddb;
  border: 1px solid #eadbbf;
  padding: 2px 9px;
  border-radius: 3px;
}
.bank-feature-note {
  margin: 8px 0 10px;
  color: #43584d;
  overflow-wrap: anywhere;
}
.bank-knowledge-tags > span:not(.tag-heading) {
  color: #53695b;
  background: #f0f4ed;
  padding: 1px 7px;
  border-radius: 3px;
}
.bank-literacies {
  color: var(--muted);
  font-size: 10px;
  margin-top: 8px;
}
.bank-card-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 0;
  font-size: 11px;
  color: var(--muted);
}
.bank-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid #e4e8e0;
  padding-top: 14px;
}
.bank-materials {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 12px;
}
.bank-materials span {
  color: #8a9386;
}
.bank-materials .text-button {
  font: inherit;
  padding: 0;
  color: var(--green);
}
.bank-card-action {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}
.bank-card-action .button {
  font-size: 12px;
  padding: 8px 17px;
}
.bank-card-action .text-button,
.bank-card-action small {
  font-size: 11px;
}
.bank-card-action small {
  color: var(--muted);
}
.bank-unused,
.bank-history {
  font-size: 11px;
  color: var(--muted);
  margin-top: 14px;
}
.bank-history summary {
  cursor: pointer;
}
.bank-history > div {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
  border-top: 1px dashed var(--line);
  margin-top: 10px;
  padding-top: 10px;
}
.bank-history .text-button {
  font-size: 11px;
  padding: 0;
}
.bank-pages {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  padding: 12px 0 30px;
  font-size: 12px;
  color: var(--muted);
}
.bank-pages .button {
  font-size: 12px;
}

/* Capture & Reader Dialog */
.bank-reader {
  width: min(1200px, calc(100% - 36px));
  max-height: calc(100dvh - 36px);
  padding: 0;
  border: 1px solid #b8c5b2;
  border-radius: 9px;
  color: var(--ink);
  background: #edf0e8;
  box-shadow: 0 30px 100px rgba(15, 40, 31, 0.25);
  overflow: auto;
}
.bank-reader::backdrop {
  background: rgba(23, 58, 46, 0.53);
  backdrop-filter: blur(3px);
}
.bank-reader > header {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.bank-reader > header > span {
  font-size: 12px;
  color: var(--muted);
}
.bank-reader > header h2 {
  font-size: 23px;
  line-height: 1.6;
}
.bank-reader > header p {
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
  overflow-wrap: anywhere;
}
.bank-reader > header .button {
  flex-shrink: 0;
  font-size: 12px;
}
.bank-reader-content {
  padding: 18px;
}
.bank-reader-content figure {
  margin: 0 0 18px;
  background: white;
  overflow: auto;
}
.bank-reader-content figcaption {
  padding: 8px 16px;
  font-size: 11px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.bank-reader-content img {
  display: block;
  width: 100%;
  height: auto;
}
.bank-capture-sheet {
  margin: 20px;
  padding: 26px 30px;
  background: #fff;
  border-radius: 6px;
  user-select: text;
}
.bank-capture-sheet h2 {
  font-family: var(--body);
  font-size: 17px;
  font-weight: 500;
  margin: 0 0 8px;
}
.capture-source {
  font-size: 12px;
  color: var(--green);
  margin-bottom: 14px;
}
.bank-capture-sheet .bank-native-question {
  font-size: 17px;
  line-height: 1.85;
}
.bank-reader > footer {
  padding: 4px 24px 20px;
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
}

/* Schedule & Print Dialog */
.bank-dialog {
  border: 1px solid #b8c5b2;
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  width: min(850px, calc(100% - 32px));
  max-height: calc(100dvh - 40px);
  padding: 32px;
  box-shadow: 0 30px 100px rgba(15, 40, 31, 0.25);
}
.bank-dialog::backdrop {
  background: rgba(23, 58, 46, 0.47);
  backdrop-filter: blur(3px);
}
.bank-dialog header {
  margin-bottom: 18px;
}
.bank-dialog h2 {
  font-size: 29px;
  margin-top: 7px;
}
.bank-dialog header > .text-button {
  white-space: nowrap;
}
.bank-batch {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 18px;
  padding: 20px;
  background: #e8eee2;
  border-radius: 4px;
  margin: 20px 0;
  align-items: end;
}
.bank-batch .field,
.bank-schedule-row .field {
  margin: 0;
}
.bank-batch .button {
  margin-bottom: 1px;
  white-space: nowrap;
}
.bank-schedule-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) 1fr 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.bank-schedule-row > strong {
  font-family: var(--display);
  font-weight: 500;
  font-size: 20px;
  overflow-wrap: anywhere;
}
.bank-schedule-row .field > span,
.bank-batch .field > span {
  font-size: 11px;
}
.bank-dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 15px;
  margin-top: 18px;
}

.bank-schedule-dialog {
  width: min(780px, calc(100% - 32px));
  padding: 0;
  overflow: hidden;
}
.bank-schedule-dialog:focus-visible {
  outline: none;
}
#bank-schedule-form {
  display: flex;
  flex-direction: column;
  max-height: calc(100dvh - 42px);
}
#bank-schedule-form > .bank-schedule-heading {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 20px;
  margin: 0;
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
#bank-schedule-form h2 {
  font-size: 26px;
  margin-top: 6px;
}
.bank-schedule-heading .eyebrow {
  font-size: 11px;
  letter-spacing: 1px;
}
.bank-schedule-heading > .text-button {
  font-size: 12px;
  white-space: nowrap;
}
.bank-schedule-body {
  padding: 20px 28px;
  overflow-y: auto;
  min-height: 0;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
.bank-schedule-intro {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.9;
}
#bank-schedule-form .bank-batch {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 12px 16px;
  padding: 16px;
  margin: 18px 0;
  align-items: start;
}
#bank-schedule-form .field {
  display: grid;
  grid-template-rows: 18px 44px;
  gap: 8px;
  margin: 0;
  min-width: 0;
}
#bank-schedule-form .field > span {
  font-size: 12px;
  line-height: 18px;
}
#bank-schedule-form .field > input,
#bank-schedule-form .field > select {
  width: 100%;
  height: 44px;
  min-height: 44px;
  margin: 0;
  padding: 0 12px;
  font-size: 14px;
  line-height: normal;
  background-color: var(--surface);
  border: 1px solid #cbd6cb;
  min-width: 0;
}
#bank-schedule-form input[type="date"] {
  appearance: none;
  -webkit-appearance: none;
}
#bank-schedule-form input[type="date"]::-webkit-date-and-time-value {
  text-align: left;
  min-height: 1em;
}
#bank-schedule-form .bank-batch > .button {
  height: 44px;
  min-height: 44px;
  align-self: start;
  margin: 26px 0 0;
  padding: 0 14px;
  font-size: 12px;
}
.bank-batch-hint {
  grid-column: 1 / -1;
  font-size: 11px;
  line-height: 1.8;
  color: var(--muted);
}
#bank-schedule-form .bank-schedule-rows {
  display: grid;
  gap: 12px;
  margin: 18px 0;
}
#bank-schedule-form .bank-schedule-row {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  align-items: start;
  min-width: 0;
}
#bank-schedule-form .bank-schedule-row > strong {
  grid-column: 1 / -1;
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink);
}
#bank-schedule-form .bank-use-warning {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}
#bank-schedule-form .bank-use-warning:empty {
  display: none;
}
#bank-schedule-form .bank-use-warning.is-repeat {
  padding: 9px 12px;
  color: var(--gold);
  background: var(--gold-wash);
  border-radius: 4px;
}
#bank-schedule-form .notice-inline {
  font-size: 11px;
  padding: 0;
  margin: 12px 0 0;
  line-height: 1.9;
}
#bank-schedule-form #bank-error:empty {
  display: none;
}
#bank-schedule-form > .bank-dialog-footer {
  margin: 0;
  padding: 16px 28px;
  border-top: 1px solid var(--line);
  background: var(--surface);
  flex-shrink: 0;
  gap: 12px;
}
#bank-schedule-form > .bank-dialog-footer .button {
  font-size: 13px;
  min-height: 40px;
  padding: 8px 18px;
}

/* Structured Question Bank Editor (#bank-edit-form) */
.bank-edit-panel {
  display: grid;
  gap: 24px;
  padding: 28px;
}
.bank-edit-section {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  min-width: 0;
}
.bank-edit-section-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid #e6ece3;
}
.bank-edit-section-head h2 {
  font-size: 21px;
  margin: 0;
}
#bank-edit-form .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 24px;
}
.bank-editor-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  min-width: 0;
}
.bank-editor-pane {
  min-width: 0;
}
.bank-tag-editor {
  background: #f3f6f0;
}
.bank-tag-editor fieldset {
  border: 0;
  padding: 0;
  margin: 20px 0;
}
.bank-tag-editor legend {
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--green);
}
.bank-feature-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
}
.bank-feature-options label,
.bank-knowledge-options label {
  display: flex;
  align-items: start;
  gap: 9px;
  font-size: 12px;
  line-height: 1.7;
  cursor: pointer;
}
.bank-tag-editor input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--green);
  margin-top: 3px;
}
.bank-feature-options small,
.bank-knowledge-options small {
  display: block;
  color: var(--muted);
  font-size: 10px;
  margin-top: 3px;
}
.bank-knowledge-picker {
  margin: 18px 0;
}
.bank-knowledge-picker summary {
  font-size: 12px;
  cursor: pointer;
  color: var(--green);
  font-weight: 500;
}
.bank-knowledge-picker summary span {
  font-size: 10px;
  font-weight: 400;
  color: var(--muted);
  margin-left: 12px;
}
#bank-tag-search {
  margin: 12px 0;
  width: 100%;
  height: 40px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid #cbd6cb;
  border-radius: 4px;
  background-color: var(--surface);
  color: var(--ink);
  font-size: 13px;
  box-sizing: border-box;
}
.bank-knowledge-options {
  max-height: 300px;
  overflow: auto;
  display: grid;
  gap: 12px;
  padding: 12px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 4px;
}
.bank-knowledge-options label[hidden] {
  display: none;
}
.bank-literacy-options {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}
.bank-literacy-options label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
}
.bank-literacy-options input[type="checkbox"] {
  margin: 0;
}
.bank-edit-figures {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin: 8px 0 12px;
}
.bank-edit-figures > div {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #fff;
  padding: 12px;
  width: 220px;
  max-width: 100%;
}
.bank-edit-figures img {
  width: 100%;
  height: 110px;
  object-fit: contain;
  margin-bottom: 12px;
}
.bank-edit-figures label {
  font-size: 12px;
}
.stem-editor-preview {
  padding: 18px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: white;
  min-width: 0;
}
.stem-editor-preview summary {
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  color: var(--green);
  margin-bottom: 12px;
}
#bank-question-text {
  font-family: var(--body);
  font-size: 14px;
  line-height: 1.9;
}
.solution-editor {
  margin: 0;
}
.solution-edit-section {
  padding: 18px;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f6f8f3;
}
.solution-edit-section .row > .field {
  flex: 1;
}
.solution-edit-section textarea {
  font: 14px/1.9 var(--body);
}
.solution-existing-figures {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 12px;
  margin-bottom: 12px;
}
.bank-edit-footer {
  position: sticky;
  bottom: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 254, 251, 0.94);
  backdrop-filter: blur(8px);
  box-shadow: 0 -4px 16px rgba(23, 58, 46, 0.05);
}
.bank-edit-status {
  min-width: 0;
  flex: 1;
}
.bank-edit-status .notice-inline {
  padding: 2px 0;
}
#bank-upload-status {
  overflow-wrap: anywhere;
}
#bank-upload-status:empty,
#bank-error:empty {
  display: none;
}

/* Compatibility Math & Video Controls */
.math-compat .katex {
  font-size: 1.05em;
  line-height: 1.2;
  text-indent: 0;
}
.math-compat > .katex {
  max-width: 100%;
  flex-shrink: 0;
}
.math-compat .katex .mathnormal,
.math-compat .katex .mathit {
  font-family: "Times New Roman", KaTeX_Math, serif;
}
.math-compat .katex-display {
  margin: 0;
}
.math-compat .katex-mathml {
  position: absolute !important;
  clip: rect(1px, 1px, 1px, 1px);
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.video-quality {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
}
.video-quality select {
  font: inherit;
  max-width: 150px;
  height: 34px;
  min-height: 34px;
  background-color: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 8px;
}
.video-status {
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
  padding: 8px 18px;
  background: var(--wash);
}
.video-status:empty {
  display: none;
}
.video-status .text-button {
  margin-left: 12px;
  font-size: inherit;
}

/* Responsive Breakpoints */
@media (min-width: 1100px) {
  .solution-expanded .bank-card-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
    gap: 22px;
  }
  .solution-expanded .bank-question-panel {
    position: sticky;
    top: 84px;
    max-height: calc(100dvh - 110px);
    overflow: auto;
    scrollbar-width: thin;
    padding-right: 8px;
  }
  .solution-expanded .bank-inline-solution > header {
    position: sticky;
    top: 64px;
    z-index: 2;
    background: #f3f6ef;
    border-radius: 6px;
  }
  .solution-expanded .bank-inline-solution > header > div {
    gap: 10px;
  }
  .bank-editor-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
    gap: 22px;
  }
  .bank-editor-split > .stem-editor-preview {
    position: sticky;
    top: 24px;
    max-height: calc(100dvh - 110px);
    overflow: auto;
  }
}

@media (max-width: 900px) {
  .bank-card {
    padding: 20px;
  }
  .bank-card-footer {
    gap: 15px;
    flex-wrap: wrap;
  }
  .bank-card-action {
    margin-left: auto;
  }
  .bank-edit-panel {
    padding: 20px;
  }
}

@media (max-width: 640px) {
  .bank-heading {
    gap: 15px;
    margin-bottom: 16px;
  }
  .bank-heading h1 {
    font-size: 29px;
  }
  .bank-heading .eyebrow {
    font-size: 9px;
  }
  .bank-heading > .button {
    font-size: 11px;
    padding: 10px 12px;
  }
  .bank-heading p:last-child {
    font-size: 11px;
  }
  .bank-filter-panel {
    padding: 12px;
  }
  .bank-toolbar {
    gap: 8px;
    flex-wrap: wrap;
  }
  .bank-search {
    flex-basis: 100%;
    max-width: none;
  }
  .bank-toolbar > label:not(.bank-search) {
    flex: 1;
    min-width: 0;
  }
  .bank-toolbar input,
  .bank-toolbar select {
    font-size: 16px;
  }
  .bank-feature-filter {
    display: block;
    padding: 10px 0 2px;
  }
  .bank-feature-label {
    display: block;
    padding: 0 0 8px;
  }
  .bank-feature-buttons {
    gap: 6px;
  }
  .bank-feature-button {
    font-size: 12px;
    padding: 6px 9px;
    gap: 5px;
  }
  .bank-selection {
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
    padding: 10px 12px;
  }
  .bank-selection > .row {
    gap: 10px;
    margin-left: auto;
  }
  .bank-selection .button {
    padding: 8px 11px;
    font-size: 11px;
  }
  .bank-selection .text-button {
    font-size: 11px;
  }
  .bank-card {
    padding: 15px 12px;
    margin-bottom: 16px;
    border-radius: 8px;
  }
  .bank-card-heading {
    gap: 10px;
    flex-wrap: wrap;
  }
  .bank-card-heading h2 {
    font-size: 14px;
  }
  .bank-card-heading .badge {
    font-size: 9px;
  }
  .bank-check {
    gap: 8px;
  }
  .bank-check span {
    font-size: 12px;
  }
  .bank-check input {
    width: 16px;
    height: 16px;
  }
  .bank-source {
    margin: 7px 0 12px;
    font-size: 12px;
  }
  .bank-native-question {
    font-size: 15px;
    line-height: 1.85;
    padding: 4px 1px 6px;
  }
  .bank-native-question p {
    margin-bottom: 7px;
  }
  .bank-native-question .katex {
    font-size: 1em;
  }
  .bank-native-question math {
    max-width: 100%;
  }
  .native-figures {
    gap: 12px;
    margin-top: 10px;
  }
  .native-figure {
    flex-basis: 140px;
  }
  .native-figure img {
    max-height: 160px;
  }
  .bank-question-caption {
    font-size: 9px;
    gap: 8px;
    align-items: start;
  }
  .bank-question-caption .text-button {
    font-size: 10px;
  }
  .bank-inline-solution > header {
    padding: 11px 12px;
    gap: 8px;
  }
  .bank-inline-solution > header > div {
    gap: 12px;
  }
  .bank-inline-solution > header a {
    font-size: 10px;
  }
  .bank-inline-solution > header .text-button {
    font-size: 11px;
  }
  .bank-inline-solution-content {
    padding: 0 7px 8px;
  }
  .bank-inline-solution .solution-card {
    padding: 14px 11px;
  }
  .bank-inline-solution .solution-figures {
    gap: 12px;
  }
  .solution-reading {
    padding: 12px 8px;
  }
  .solution-cards {
    gap: 12px;
  }
  .solution-card {
    padding: 16px 14px;
    border-radius: 6px;
  }
  .solution-card > header {
    gap: 9px;
    margin-bottom: 10px;
    padding-bottom: 9px;
  }
  .solution-card h3 {
    font-size: 13px;
  }
  .solution-body {
    font-size: 15px;
    line-height: 1.95;
  }
  .solution-body p {
    margin-bottom: 10px;
  }
  .solution-figures {
    gap: 12px;
  }
  .solution-figures figure {
    flex-basis: 260px;
  }
  .solution-figures img {
    max-height: 320px;
  }
  .solution-reading.text-enlarged .solution-body {
    font-size: 18px;
  }
  .bank-tags {
    font-size: 11px;
  }
  .bank-feature-note {
    line-height: 1.9;
  }
  .bank-card-meta {
    font-size: 10px;
    line-height: 1.8;
  }
  .bank-materials {
    font-size: 11px;
    gap: 16px;
  }
  .bank-card-footer {
    gap: 16px;
  }
  .bank-card-action {
    width: 100%;
    justify-content: flex-end;
    gap: 20px;
  }
  .bank-card-action small {
    font-size: 10px;
  }
  .bank-history,
  .bank-unused {
    font-size: 10px;
  }
  .bank-pages {
    gap: 12px;
    font-size: 10px;
  }
  .bank-pages .button {
    padding: 8px 12px;
    font-size: 11px;
  }
  .bank-reader {
    width: calc(100% - 12px);
    max-height: calc(100dvh - 12px);
  }
  .bank-reader > header {
    padding: 12px;
    gap: 12px;
    align-items: start;
  }
  .bank-reader > header h2 {
    font-size: 18px;
  }
  .bank-reader > header .button {
    font-size: 11px;
    padding: 8px 11px;
  }
  .bank-reader > header .row {
    gap: 8px;
  }
  .bank-reader > header > .row {
    flex-shrink: 0;
  }
  .bank-reader-content {
    padding: 8px;
  }
  .bank-reader-content img {
    width: 850px;
    max-width: none;
  }
  .bank-capture-sheet {
    margin: 8px;
    padding: 18px 14px;
  }
  .bank-capture-sheet .bank-native-question {
    font-size: 15px;
  }
  .bank-capture-sheet h2 {
    font-size: 15px;
  }
  .bank-dialog {
    padding: 22px 18px;
    max-height: calc(100dvh - 24px);
    width: calc(100% - 20px);
  }
  .bank-dialog h2 {
    font-size: 25px;
  }
  .bank-batch {
    grid-template-columns: 1fr 1fr;
    padding: 15px 12px;
    gap: 12px;
  }
  .bank-batch .button {
    grid-column: span 2;
    font-size: 12px;
  }
  .bank-schedule-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 12px;
    padding: 18px 0;
  }
  .bank-schedule-row > strong {
    grid-column: span 2;
    font-size: 20px;
  }
  .bank-schedule-row input,
  .bank-batch input {
    font-size: 16px;
    min-width: 0;
    padding: 9px 8px;
  }
  .bank-dialog-footer {
    gap: 10px;
  }
  .bank-dialog-footer .button {
    font-size: 12px;
  }
  .bank-dialog.bank-schedule-dialog {
    padding: 0;
    width: calc(100% - 20px);
    max-height: calc(100dvh - 24px);
  }
  #bank-schedule-form {
    max-height: calc(100dvh - 26px);
  }
  #bank-schedule-form > .bank-schedule-heading {
    padding: 19px 17px 15px;
  }
  #bank-schedule-form h2 {
    font-size: 23px;
  }
  .bank-schedule-body {
    padding: 16px 17px;
  }
  #bank-schedule-form .bank-batch {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    padding: 13px;
    gap: 12px;
    margin: 15px 0;
  }
  #bank-schedule-form .bank-batch > .button {
    grid-column: 1 / -1;
    align-self: auto;
    margin: 0;
  }
  #bank-schedule-form .field > input,
  #bank-schedule-form .field > select {
    font-size: 16px;
    padding: 0 9px;
  }
  #bank-schedule-form .bank-schedule-row {
    padding: 14px;
    gap: 14px;
    grid-template-columns: minmax(0, 1fr);
  }
  #bank-schedule-form .bank-schedule-row > strong {
    font-size: 18px;
    grid-column: 1;
  }
  #bank-schedule-form > .bank-dialog-footer {
    padding: 14px 17px;
    justify-content: stretch;
  }
  #bank-schedule-form > .bank-dialog-footer .button {
    flex: 1;
    min-height: 42px;
  }
  .bank-edit-panel {
    padding: 14px;
    gap: 16px;
  }
  .bank-edit-section {
    padding: 14px 12px;
  }
  #bank-edit-form .form-grid {
    grid-template-columns: 1fr;
  }
  .bank-feature-options {
    grid-template-columns: 1fr;
  }
  .bank-knowledge-options {
    max-height: 260px;
  }
  .bank-tag-editor input[type="search"] {
    font-size: 16px;
  }
  .stem-editor-preview {
    padding: 12px;
  }
  #bank-question-text {
    font-size: 16px;
  }
  .solution-edit-section {
    padding: 14px 12px;
  }
  .solution-edit-section textarea,
  .solution-edit-section input {
    font-size: 16px;
  }
  .bank-edit-footer {
    padding: 12px;
  }
  .bank-edit-footer .button {
    width: 100%;
  }
}

.solution-method-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 16px;padding:4px;border-bottom:1px solid #edf0e9}
.solution-step-badge{display:inline-block;vertical-align:baseline;margin-right:8px;padding:2px 8px;border-radius:999px;background:#e6f1eb;color:#2f6a52;font:11px var(--body);white-space:nowrap}