/* Question detail: calm document layout, scoped to the question route only. */

.question-detail-page {
  --question-rule: color-mix(in srgb, var(--border, #dfe7e3) 82%, transparent);
  display: grid;
  width: min(100%, 920px);
  min-width: 0;
  margin-inline: auto;
  gap: 24px;
  padding-bottom: calc(28px + env(safe-area-inset-bottom));
}

.question-detail-page,
.question-detail-page *,
.question-detail-page *::before,
.question-detail-page *::after {
  box-sizing: border-box;
}

.question-detail-page > *,
.question-detail-page :where(article, section, form, div, header) {
  min-width: 0;
}

/* App bar */
.question-detail-page > .detail-appbar {
  display: grid;
  min-height: 48px;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 8px;
  border: 0;
  border-bottom: 1px solid var(--question-rule);
  background: transparent;
  padding: 0 0 9px;
}

.question-detail-page > .detail-appbar > strong {
  overflow: hidden;
  color: var(--text, #18211d);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.question-detail-page > .detail-appbar .icon-only {
  display: grid;
  width: 40px;
  min-width: 40px;
  height: 40px;
  min-height: 40px;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: transparent;
  padding: 0;
  color: var(--text, #18211d);
}

.question-detail-page > .detail-appbar .icon-only:hover {
  background: var(--surface-subtle, #f2f5f3);
}

.question-detail-page > .detail-appbar .icon {
  width: 21px;
  height: 21px;
}

/* Question document */
.question-detail-page .question-detail-card {
  display: grid;
  gap: 0;
  overflow: visible;
  border: 1px solid var(--question-rule);
  border-radius: 12px;
  background: var(--surface, #fff);
  padding: 24px;
  box-shadow: none;
}

.question-detail-page .question-detail-card::before,
.question-detail-page .question-detail-card::after,
.question-detail-page .question-detail-heading::before,
.question-detail-page .question-detail-heading::after {
  display: none !important;
  content: none !important;
}

.question-detail-page .question-detail-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px;
  align-items: start;
  gap: 14px;
  border: 0;
  padding: 0 0 18px;
}

.question-detail-page .question-detail-title-copy {
  display: grid;
  gap: 10px;
}

.question-detail-page .question-detail-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px 9px;
  color: var(--text-2, #66736d);
  font-size: 12px;
  font-weight: 550;
  line-height: 1.4;
}

.question-detail-page .question-detail-context > span {
  display: inline-flex;
  width: auto;
  min-width: 0;
  min-height: 0;
  align-items: center;
  gap: 5px;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
  color: inherit;
  font: inherit;
}

.question-detail-page .question-detail-context > span + span::before {
  display: inline;
  margin: 0 2px 0 0;
  color: #aab4af;
  content: "\00b7";
}

.question-detail-page .question-detail-context > .question-status-label {
  min-height: 24px;
  border-radius: 999px;
  background: var(--brand-soft, #edf7f3);
  padding: 3px 9px;
  color: var(--brand, #087454);
  font-weight: 700;
}

.question-detail-page .question-detail-context > .question-status-label::before {
  content: none;
}

.question-detail-page .question-status-label i {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
}

.question-detail-page .question-detail-title-copy h1 {
  max-width: 32ch;
  margin: 0;
  color: var(--text, #18211d);
  font-size: clamp(22px, 2.4vw, 29px);
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1.38;
  overflow-wrap: anywhere;
  word-break: keep-all;
}

.question-detail-page .question-detail-title-copy > .meta {
  display: flex;
  min-height: 28px;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px 10px;
  margin: 0;
  color: var(--text-2, #66736d);
  font-size: 12px;
  line-height: 1.45;
}

.question-detail-page .question-detail-title-copy > .meta > span:not(:first-child)::before {
  margin-right: 8px;
  color: #b1bbb6;
  content: "\00b7";
}

.question-detail-page .question-detail-title-copy > .meta :where(a, button) {
  max-width: 100%;
}

.question-detail-page .question-object-menu {
  position: relative;
  z-index: 4;
  justify-self: end;
}

.question-detail-page .question-object-menu > summary {
  display: grid;
  width: 40px;
  min-width: 40px;
  height: 40px;
  min-height: 40px;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: transparent;
  padding: 0;
  color: var(--text-2, #66736d);
  cursor: pointer;
  list-style: none;
}

.question-detail-page .question-object-menu > summary:hover,
.question-detail-page .question-object-menu[open] > summary {
  background: var(--surface-subtle, #f2f5f3);
  color: var(--text, #18211d);
}

.question-detail-page .question-object-menu > summary::-webkit-details-marker {
  display: none;
}

.question-detail-page .question-object-menu > summary .icon {
  width: 20px;
  height: 20px;
}

.question-detail-page .question-object-menu > div {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  display: grid;
  width: min(190px, calc(100vw - 44px));
  gap: 4px;
  border: 1px solid var(--question-rule);
  border-radius: 12px;
  background: var(--surface, #fff);
  padding: 6px;
  box-shadow: 0 10px 28px rgb(14 33 25 / 12%);
}

.question-detail-page .question-object-menu > div > button {
  width: 100%;
  min-width: 0;
  min-height: 38px;
  justify-content: flex-start;
  border-radius: 8px;
  padding-inline: 10px;
  white-space: normal;
}

.question-detail-page .question-body {
  margin: 0;
  border: 0;
  border-top: 1px solid var(--question-rule);
  border-radius: 0;
  background: transparent;
  padding: 20px 0 0;
  color: var(--text, #18211d);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  overflow-wrap: anywhere;
  word-break: normal;
}

.question-detail-page .question-body > :first-child {
  margin-top: 0;
}

.question-detail-page .question-body > :last-child {
  margin-bottom: 0;
}

.question-detail-page .question-attempt-box {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  border: 0;
  border-radius: 10px;
  background: var(--surface-subtle, #f2f5f3);
  padding: 14px 15px;
}

.question-detail-page .question-attempt-box h3 {
  margin: 0;
  color: var(--text, #18211d);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
}

.question-detail-page .question-attempt-box > .content-box {
  margin: 0;
  padding: 0;
  color: var(--text, #18211d);
  font-size: 14px;
  line-height: 1.65;
  white-space: pre-wrap;
}

/* Problem images */
.question-detail-page .question-detail-card > .image-preview.hand-image-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 10px;
  width: 100%;
  margin-top: 18px;
}

.question-detail-page .question-image-action {
  position: relative;
  display: grid;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  place-items: center;
  border: 1px solid var(--question-rule);
  border-radius: 10px;
  background: #f5f7f6;
  padding: 0;
  text-align: left;
}

.question-detail-page .question-image-action .question-image {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 620px;
  border: 0;
  border-radius: 0;
  background: #f5f7f6;
  object-fit: contain;
}

.question-detail-page .question-image-action > span {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  gap: 5px;
  border-radius: 8px;
  background: rgb(24 33 29 / 88%);
  padding: 6px 10px;
  color: #fff;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.2;
  backdrop-filter: blur(8px);
}

.question-detail-page .question-image-action > span .icon {
  width: 15px;
  height: 15px;
}

/* Primary question actions */
.question-detail-page .question-detail-actions {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  border-top: 1px solid var(--question-rule);
  padding-top: 16px;
}

.question-detail-page .question-detail-actions > :where(button, .question-reservation-state, .ai-answer-request-state) {
  max-width: 100%;
}

.question-detail-page .question-detail-actions > button {
  min-height: 40px;
  border-radius: 10px;
  padding-inline: 13px;
  font-size: 13px;
  line-height: 1.3;
}

.question-detail-page :where(.question-reservation-state, .ai-answer-request-state) {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  gap: 6px;
  color: var(--text-2, #66736d);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.question-detail-page :where(.question-reservation-state, .ai-answer-request-state) .icon {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
}

/* Answer section framing. AI card internals belong to ai-answer-reference.css. */
.question-detail-page > .workspace-content-section {
  display: grid;
  gap: 14px;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
  box-shadow: none;
}

.question-detail-page > .workspace-content-section > .workspace-section-head {
  display: flex;
  min-width: 0;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  border: 0;
  padding: 0 2px;
}

.question-detail-page .workspace-section-head > div:first-child {
  display: grid;
  gap: 3px;
}

.question-detail-page .workspace-section-head :where(h2, h3) {
  margin: 0;
  color: var(--text, #18211d);
  font-size: 20px;
  font-weight: 720;
  line-height: 1.35;
}

.question-detail-page .workspace-section-head p {
  margin: 0;
  color: var(--text-2, #66736d);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
}

.question-detail-page .workspace-count {
  display: inline-flex;
  flex: 0 0 auto;
  min-height: 26px;
  align-items: center;
  border-radius: 999px;
  background: var(--surface-subtle, #f2f5f3);
  padding: 3px 9px;
  color: var(--text-2, #66736d);
  font-size: 12px;
  font-weight: 650;
}

.question-detail-page .answer-list {
  display: grid;
  min-width: 0;
  gap: 12px;
}

.question-detail-page .answer-list > * {
  min-width: 0;
  max-width: 100%;
}

.question-detail-page .answer-card:not(.ai-answer-card) {
  display: grid;
  min-width: 0;
  gap: 13px;
  overflow: hidden;
  border: 1px solid var(--question-rule);
  border-radius: 12px;
  background: var(--surface, #fff);
  padding: 18px;
  box-shadow: none;
}

.question-detail-page .answer-card:not(.ai-answer-card)::before,
.question-detail-page .answer-card:not(.ai-answer-card)::after {
  display: none !important;
  content: none !important;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .card-head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .card-head > :first-child {
  min-width: 0;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .card-head h3 {
  min-width: 0;
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .card-head .badge {
  flex: 0 0 auto;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .answer-content {
  min-width: 0;
  max-width: 100%;
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
  color: var(--text, #18211d);
  font-size: 15px;
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .meta {
  margin: 0;
  color: var(--text-2, #66736d);
  font-size: 12px;
  line-height: 1.4;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .image-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 8px;
  overflow: hidden;
  border-radius: 10px;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .image-preview:empty {
  display: none;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .image-preview img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 520px;
  border: 1px solid var(--question-rule);
  border-radius: 10px;
  background: #f5f7f6;
  object-fit: contain;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .chips {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 7px;
}

.question-detail-page .answer-card:not(.ai-answer-card) > .chips > button {
  min-height: 36px;
  max-width: 100%;
  border-radius: 9px;
  padding-inline: 11px;
  font-size: 12px;
  white-space: normal;
}

.question-detail-page .answer-empty {
  display: grid;
  min-height: 132px;
  place-content: center;
  gap: 5px;
  border: 1px dashed var(--question-rule);
  border-radius: 12px;
  background: transparent;
  padding: 20px;
  color: var(--text-2, #66736d);
  text-align: center;
}

.question-detail-page .answer-empty strong {
  color: var(--text, #18211d);
  font-size: 15px;
  font-weight: 700;
}

.question-detail-page .answer-empty span {
  font-size: 13px;
  line-height: 1.5;
}

/* Shared long-content overflow guards */
.question-detail-page :where(.question-body, .answer-content, .forum-rendered-document) :where(img, video, canvas, iframe, svg) {
  max-width: 100%;
  height: auto;
}

.question-detail-page :where(.question-body, .answer-content, .forum-rendered-document) :where(pre, table, .katex-display, .math-block) {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

.question-detail-page :where(.question-body, .answer-content, .forum-rendered-document) table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
}

.question-detail-page :where(.question-body, .answer-content, .forum-rendered-document) :where(a, code) {
  overflow-wrap: anywhere;
}

.question-detail-page :where(.note-preview-card, .field-block, .forum-editor, .forum-editor-content, .forum-editor-surface) {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.question-detail-page .note-preview-card {
  overflow: hidden;
}

.question-detail-page .note-preview-card img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 560px;
  object-fit: contain;
}

/* Regular answer form only; follow-up form is refined by AI answer CSS. */
.question-detail-page > form.panel.form:not(.question-followup-form) {
  display: grid;
  gap: 14px;
  overflow: hidden;
  border: 1px solid var(--question-rule);
  border-radius: 12px;
  background: var(--surface, #fff);
  padding: 20px;
  box-shadow: none;
}

.question-detail-page > form.panel.form:not(.question-followup-form) > h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 720;
  line-height: 1.35;
}

.question-detail-page > form.panel.form:not(.question-followup-form) > .muted {
  margin: -7px 0 0;
  font-size: 13px;
  line-height: 1.5;
}

.question-detail-page > form.panel.form:not(.question-followup-form) > button[type="submit"] {
  justify-self: end;
  min-width: 112px;
  min-height: 42px;
  border-radius: 10px;
}

.question-detail-page :focus-visible {
  outline: 2px solid color-mix(in srgb, var(--brand, #087454) 55%, white);
  outline-offset: 2px;
}

@media (max-width: 700px) {
  .question-detail-page {
    width: 100%;
    gap: 20px;
    padding-bottom: calc(14px + env(safe-area-inset-bottom));
  }

  .question-detail-page > .detail-appbar {
    min-height: 44px;
    grid-template-columns: 40px minmax(0, 1fr) 40px;
    padding-bottom: 7px;
  }

  .question-detail-page .question-detail-card {
    border-radius: 11px;
    padding: 17px 15px;
  }

  .question-detail-page .question-detail-heading {
    grid-template-columns: minmax(0, 1fr) 36px;
    gap: 8px;
    padding-bottom: 15px;
  }

  .question-detail-page .question-detail-title-copy {
    gap: 8px;
  }

  .question-detail-page .question-detail-title-copy h1 {
    max-width: none;
    font-size: 21px;
    line-height: 1.42;
  }

  .question-detail-page .question-detail-context {
    gap: 5px 7px;
    font-size: 11px;
  }

  .question-detail-page .question-detail-context > .question-status-label {
    min-height: 22px;
    padding: 2px 8px;
  }

  .question-detail-page .question-object-menu > summary {
    width: 36px;
    min-width: 36px;
    height: 36px;
    min-height: 36px;
  }

  .question-detail-page .question-detail-title-copy > .meta {
    gap: 4px 7px;
    font-size: 11px;
  }

  .question-detail-page .question-detail-title-copy > .meta > span:not(:first-child)::before {
    margin-right: 6px;
  }

  .question-detail-page .question-body {
    padding-top: 16px;
    font-size: 15px;
    line-height: 1.72;
  }

  .question-detail-page .question-attempt-box {
    margin-top: 15px;
    padding: 12px 13px;
  }

  .question-detail-page .question-detail-card > .image-preview.hand-image-list {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 15px;
  }

  .question-detail-page .question-image-action .question-image {
    max-height: min(66vh, 520px);
  }

  .question-detail-page .question-image-action > span {
    right: 8px;
    bottom: 8px;
    min-height: 31px;
    padding: 5px 8px;
    font-size: 11px;
  }

  .question-detail-page .question-detail-actions {
    align-items: stretch;
    gap: 7px;
    margin-top: 16px;
    padding-top: 14px;
  }

  .question-detail-page .question-detail-actions > button {
    flex: 1 1 min(100%, 145px);
    min-width: 0;
    padding-inline: 10px;
  }

  .question-detail-page :where(.question-reservation-state, .ai-answer-request-state) {
    flex: 1 0 100%;
  }

  .question-detail-page > .workspace-content-section {
    gap: 11px;
  }

  .question-detail-page > .workspace-content-section > .workspace-section-head {
    align-items: flex-start;
    padding-inline: 1px;
  }

  .question-detail-page .workspace-section-head :where(h2, h3) {
    font-size: 18px;
  }

  .question-detail-page .workspace-section-head p {
    max-width: 32ch;
    font-size: 12px;
  }

  .question-detail-page .answer-list {
    gap: 10px;
  }

  .question-detail-page .answer-card:not(.ai-answer-card) {
    border-radius: 11px;
    padding: 15px;
  }

  .question-detail-page .answer-card:not(.ai-answer-card) > .answer-content {
    font-size: 15px;
    line-height: 1.7;
  }

  .question-detail-page .answer-card:not(.ai-answer-card) > .image-preview {
    grid-template-columns: minmax(0, 1fr);
  }

  .question-detail-page .answer-empty {
    min-height: 116px;
    padding: 16px;
  }

  .question-detail-page > form.panel.form:not(.question-followup-form) {
    border-radius: 11px;
    padding: 16px 15px;
  }

  .question-detail-page > form.panel.form:not(.question-followup-form) > button[type="submit"] {
    width: 100%;
    justify-self: stretch;
  }
}

@media (max-width: 390px) {
  .question-detail-page {
    gap: 18px;
  }

  .question-detail-page .question-detail-card {
    padding-inline: 14px;
  }

  .question-detail-page .question-detail-title-copy h1 {
    font-size: 20px;
  }

  .question-detail-page .question-detail-actions > button {
    flex-basis: 100%;
  }

  .question-detail-page .answer-card:not(.ai-answer-card) > .card-head {
    gap: 7px;
  }

  .question-detail-page .answer-card:not(.ai-answer-card) > .card-head .badge {
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .question-detail-page *,
  .question-detail-page *::before,
  .question-detail-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}