/* Questions, practice, diagnostics and answer feedback. */
.practice-progress {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) 20px;
  padding: 14px 18px;
  margin: 14px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.practice-progress > p {
  flex-basis: 100%;
  margin: var(--space-1) 0 0;
}

.practice-progress > span {
  color: var(--muted);
  font-size: 14px;
}

.practice-navigation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--line);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
}

.practice-navigation span {
  font-size: 14px;
  color: var(--muted);
}

.review-instruction,
.review-exit {
  background: var(--soft);
  border-radius: 8px;
  padding: var(--space-3) var(--space-4);
}

.feedback-example {
  margin: var(--space-3) 0;
}

.feedback-example summary {
  min-height: 44px;
  cursor: pointer;
  font-weight: 600;
}

@media (max-width: 800px) {
  .practice-progress .actions a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 6px var(--space-2);
  }

  .practice-progress {
    padding: var(--space-3);
    gap: var(--space-1) var(--space-3);
  }
}

.exam-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: var(--space-6);
  margin-top: 22px;
}

.palette {
  align-self: start;
  padding: var(--space-4);
  position: sticky;
  top: calc(var(--header-height) + 16px);
  max-height: calc(100dvh - var(--header-height) - 32px);
  overflow: auto;
  overscroll-behavior: contain;
}

.number-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill,minmax(44px,1fr));
  gap: 5px;
}

.number-grid button {
  padding: 0;
  min-height: 44px;
  min-width: 44px;
  width: 100%;
  max-width: none;
  border-radius: 5px;
  font-size: 13px;
  flex-direction: column;
  gap: 1px;
  line-height: 1.2;
}

.number-grid button span {
  font-size: 14px;
  font-weight: 500;
}

.number-grid button.answered {
  background: var(--soft);
  border-color: var(--accent);
  color: var(--accent-strong);
}

.number-grid button[aria-current] {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  font-weight: 800;
}

.palette legend {
  font-size: 13px;
  margin-top: var(--space-3);
}

.palette p {
  font-size: 14px;
}

.palette summary {
  display: none;
}

.palette-body > .button {
  width: 100%;
  font-size: 13px;
  margin-top: 14px;
}

@media(max-width:1100px) {
  .exam-layout {
    grid-template-columns: minmax(0,1fr);
    gap: var(--space-4);
  }

  .palette {
    position: static;
    width: 100%;
    max-height: none;
    overflow: visible;
    padding: 0 var(--space-4);
  }

  .palette summary {
    display: block;
    min-height: 44px;
    padding: 10px 0;
  }

  .palette details:not([open]) .palette-body {
    display: none;
  }

  .palette-body {
    padding-bottom: var(--space-4);
  }
}

.qcard {
  min-height: 0;
}

.qcard h2 {
  font-size: clamp(20px, 1.7vw, 24px);
  line-height: 1.6;
  margin: 18px 0;
  overflow-wrap: anywhere;
}

.question-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 13px;
  color: var(--muted);
}

.question-meta .tag {
  font-size: 14px;
}

.question-pictures {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}

.question-pictures figure {
  margin: 0;
  flex: 1 1 240px;
  min-width: 0;
}

.question-pictures .picture {
  min-height: 190px;
  padding: var(--space-3);
}

.question-pictures img {
  max-height: 370px;
}

.question-pictures figcaption {
  font-size: 14px;
  color: var(--muted);
  margin-top: 5px;
}

@media (min-width: 1000px) {
  :is(.practice-body,
.qcard):has(> .question-pictures) {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    grid-template-areas: "context context"
      "instruction instruction"
      "meta meta"
      "help help"
      "stem stem"
      "pictures options"
      "notes notes"
      "actions actions"
      "feedback feedback"
      "navigation navigation";
    column-gap: var(--space-6);
    align-items: start;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > * {
    grid-column: 1 / -1;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .question-pictures {
    grid-area: pictures;
    margin-top: 0;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > fieldset.options {
    grid-area: options;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .meta {
    grid-area: context;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .review-instruction {
    grid-area: instruction;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .question-meta {
    grid-area: meta;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > h2 {
    grid-area: stem;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .note-box {
    grid-area: notes;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .question-actions {
    grid-area: actions;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > :is(.feedback,
#quiz-feedback) {
    grid-area: feedback;
  }

  :is(.practice-body,
.qcard):has(> .question-pictures) > .practice-navigation {
    grid-area: navigation;
  }
}

.options {
  display: grid;
  gap: 10px;
}

.option {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  border: 1px solid var(--line);
  padding: 14px var(--space-4);
  border-radius: 8px;
  min-height: 55px;
  cursor: pointer;
  line-height: 1.65;
}

.option input {
  margin-top: var(--space-1);
}

.option:has(:checked) {
  background: var(--soft);
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.option > span {
  flex: 1;
  min-width: 0;
}

.option img {
  display: block;
  max-width: 100%;
  max-height: 210px;
  object-fit: contain;
  margin: 10px auto;
}

.image-option {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.image-option .option {
  flex: 1;
}

.image-option > button {
  align-self: flex-end;
  font-size: 14px;
  min-height: 44px;
  padding: 6px var(--space-3);
}

.image-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.question-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  align-items: stretch;
}

.question-actions > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-block: 6px;
}

.exam-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.exam-footer .button,
.exam-footer button {
  min-width: 100px;
}

.answer-feedback {
  margin-top: 20px;
  padding: 18px;
  border: 1px solid #a1c4ae;
  border-left: 5px solid #247044;
  background: #f0f8f2;
  border-radius: 8px;
}

.answer-feedback.wrong {
  background: #fff3f2;
  border-color: #d8aaa7;
  border-left-color: #ad292f;
}

.answer-feedback .answer-verdict {
  font-size: 22px;
  font-weight: 800;
  color: var(--correct-ink);
  margin: 0 0 var(--space-3);
}

.answer-feedback.wrong .answer-verdict {
  color: var(--wrong-ink);
}

.answer-feedback .correct-answer {
  font-weight: 650;
}

.answer-feedback a {
  font-size: 13px;
}

.practice-list {
  display: grid;
  gap: var(--space-3);
}

.practice-row {
  padding: 0;
  overflow: hidden;
}

.practice-row > summary {
  padding: 15px 20px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 15px;
  list-style: none;
  min-height: 64px;
}

.practice-row > summary::before {
  content: "+";
  font-size: 20px;
  color: var(--accent);
}

.practice-row[open] > summary::before {
  content: "−";
}

.practice-row > summary > span {
  flex: 1;
}

.practice-row > summary small {
  color: var(--muted);
  font-size: 13px;
}

.practice-body {
  padding: 0 var(--space-6) var(--space-6);
  border-top: 1px solid var(--line);
}

.practice-body h2 {
  font-size: 21px;
  margin-top: 18px;
}

.answer-list {
  display: grid;
  gap: var(--space-3);
  margin-top: 14px;
}

.answer-list article {
  padding: var(--space-4);
  background: var(--surface-subtle);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
}

@media (max-width: 800px) {
  .qcard {
    min-height: 0;
    padding: 22px;
  }

  .qcard h2 {
    font-size: 22px;
  }
}

@media (max-width: 600px) {
  .palette {
    padding: 0 14px;
  }

  .qcard {
    padding: 19px;
  }

  .qcard h2 {
    font-size: 21px;
  }

  .option {
    padding: var(--space-3);
    font-size: 16px;
    gap: 9px;
  }

  .image-options {
    grid-template-columns: 1fr;
  }

  .image-option .option {
    align-items: center;
  }

  .image-option .option img {
    max-height: 180px;
    max-width: 240px;
    width: 100%;
  }

  .practice-row > summary {
    padding: 14px;
    gap: var(--space-2);
    font-size: 14px;
    align-items: flex-start;
  }

  .practice-row > summary small {
    display: none;
  }

  .practice-body {
    padding: 0 var(--space-4) 20px;
  }

  .question-pictures figure {
    flex-basis: 100%;
  }

  .question-pictures .picture {
    min-height: 180px;
  }

  .question-pictures img {
    max-height: 330px;
  }

  .exam-footer button {
    min-width: 90px;
    padding: 10px;
  }
}

@media print {
  .palette {
    display: none;
  }

  .exam-layout {
    display: block;
  }
}

.question-pictures .picture img {
  width: 100%;
  height: 300px;
  max-height: none;
  object-fit: contain;
}

@media (max-width: 600px) {
  .question-pictures .picture img {
    height: 290px;
  }
}

.practice-row > summary .practice-summary-open,
.practice-row[open] > summary .practice-summary-title {
  display: none;
}

.practice-row[open] > summary .practice-summary-open {
  display: inline;
  flex: 1;
}

.learning-target {
  margin: 20px 0;
  border-top: 3px solid var(--line);
}

.learning-target h3 {
  font-size: 21px;
  margin: var(--space-2) 0 14px;
}

.assessment-case {
  border-top: 1px solid var(--line);
  margin: var(--space-3) 0;
}

.assessment-case > summary {
  min-height: 44px;
  padding: 10px 0;
  cursor: pointer;
  font-weight: 600;
}

.assessment-actions {
  margin: 20px 0;
}

.learning-target:first-of-type {
  border-top-color: var(--accent);
}

.learning-target > .step-label {
  display: inline-block;
  padding: var(--space-1) 9px;
  border-radius: 6px;
  background: var(--soft);
}

.practice-row>summary .question-status--correct,
.drawer-question-list .question-status--correct,
.assessment-case--correct>summary {
  color: var(--correct-ink);
  font-weight: 700;
}

.practice-row>summary .question-status--wrong,
.drawer-question-list .question-status--wrong,
.assessment-case--wrong>summary,
.answer-result--wrong .result-verdict {
  color: var(--wrong-ink);
  font-weight: 700;
}

.answer-result--correct .result-verdict {
  color: var(--correct-ink);
}

.answer-error {
  color: var(--wrong-ink);
  border-left: 3px solid currentColor;
  padding: var(--space-2) var(--space-3);
  font-weight: 700;
}

.feedback-pictures {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.feedback-pictures>div {
  min-width: 0;
}

.feedback-pictures figure {
  margin: var(--space-2) 0 0;
}

.feedback-pictures .picture {
  width: 100%;
  height: 200px;
  background: white;
}

.feedback-pictures img {
  width: 100%;
  height: 176px;
  object-fit: contain;
}

.feedback-pictures figcaption {
  font-size: 13px;
  color: var(--muted);
}

@media(max-width:560px) {
  .practice-navigation {
    display: grid;
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: var(--space-2);
  }

  .practice-navigation>span {
    grid-column: 1/-1;
    grid-row: 1;
    text-align: center;
  }

  .feedback-pictures {
    grid-template-columns: 1fr;
  }
}

@media(min-width:1000px) {
  :is(.practice-body,.qcard):has(> .question-pictures)>.question-help {
    grid-area: help;
  }
}

@media(max-width:560px) {
  .practice-navigation>button,
  .practice-navigation>.button {
    font-size: 14px;
    padding: 9px var(--space-3);
    width: 100%;
  }
}

.practice-navigation.attempt-navigation {
  position: sticky;
  bottom: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: var(--space-2);
  padding: 10px 0 max(10px,env(safe-area-inset-bottom));
  background: var(--bg);
  box-shadow: 0 -8px 16px -14px #302a4066;
}

.practice-navigation.attempt-navigation>span {
  grid-column: 1/-1;
  grid-row: 1;
  text-align: center;
  font-size: 13px;
}

.practice-navigation.attempt-navigation>button {
  min-height: var(--control-height);
  min-width: 0;
  width: 100%;
  padding: 10px 6px;
  white-space: normal;
  font-size: 14px;
}