.latex-tool-page {
  --lt-ink: #463a31;
  --lt-muted: #7c6f64;
  --lt-brown: #9a6545;
  --lt-brown-deep: #74462e;
  --lt-peach: #f1d9c7;
  --lt-paper: rgba(252, 250, 246, .74);
  --lt-line: rgba(126, 91, 65, .18);
  --lt-shadow: 0 18px 45px rgba(91, 72, 54, .10);
  color: var(--lt-ink);
  margin: 8px auto 40px;
  max-width: 1080px;
}

.latex-tool-page * {
  box-sizing: border-box;
}

.latex-tool-hero {
  margin: 0 auto 26px;
  max-width: 730px;
  padding: 32px 20px 18px;
  text-align: center;
}

.latex-tool-kicker,
.latex-section-kicker {
  color: var(--lt-brown);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  margin: 0 0 12px;
}

.latex-tool-kicker i {
  margin-right: 6px;
}

.latex-tool-hero h1 {
  color: var(--lt-ink);
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: clamp(30px, 5vw, 42px);
  letter-spacing: .04em;
  line-height: 1.2;
  margin: 0 0 12px;
}

.latex-tool-hero > p {
  color: var(--lt-muted);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.85;
  margin: 0;
}

.latex-workbench {
  align-items: stretch;
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, .98fr) 34px minmax(0, 1.02fr);
}

.latex-panel,
.latex-quick-section,
.latex-tool-guide {
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  background: var(--lt-paper);
  border: 1px solid var(--lt-line);
  box-shadow: var(--lt-shadow);
}

.latex-panel {
  border-radius: 18px;
  min-width: 0;
  padding: 24px;
}

.latex-editor-panel,
.latex-preview-panel {
  display: flex;
  flex-direction: column;
}

.latex-panel-heading {
  align-items: flex-start;
  display: flex;
  gap: 11px;
  margin-bottom: 18px;
}

.latex-panel-heading > div {
  flex: 1;
}

.latex-step {
  align-items: center;
  background: var(--lt-brown);
  border-radius: 50%;
  color: #fffaf4;
  display: inline-flex;
  flex: 0 0 29px;
  font-family: Georgia, serif;
  font-size: 13px;
  height: 29px;
  justify-content: center;
  margin-top: 2px;
  width: 29px;
}

.latex-panel-heading h2,
.latex-quick-section h2,
.latex-guide-item h3 {
  color: var(--lt-ink);
  font-family: Georgia, "Noto Serif SC", serif;
  margin: 0;
}

.latex-panel-heading h2 {
  font-size: 20px;
  line-height: 1.35;
}

.latex-panel-heading p,
.latex-quick-section > div > p,
.latex-guide-item p {
  color: var(--lt-muted);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12px;
  line-height: 1.65;
  margin: 4px 0 0;
}

.latex-status {
  align-items: center;
  background: rgba(117, 137, 108, .12);
  border-radius: 20px;
  color: #687a5d;
  display: inline-flex;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 10px;
  gap: 5px;
  margin-left: auto;
  padding: 5px 8px;
  white-space: nowrap;
}

.latex-status i {
  color: #82966f;
  font-size: 7px;
}

.latex-status.is-editing {
  background: rgba(154, 101, 69, .12);
  color: #8c5d41;
}

.latex-status.is-editing i {
  color: #a06f48;
}

.latex-mode-switch {
  align-self: flex-start;
  background: rgba(130, 105, 87, .09);
  border-radius: 8px;
  display: inline-flex;
  margin-bottom: 14px;
  padding: 3px;
}

.latex-mode-switch button {
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: #87766a;
  cursor: pointer;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px;
  padding: 7px 9px;
  transition: background .2s ease, color .2s ease;
}

.latex-mode-switch button.is-active {
  background: rgba(255, 253, 249, .86);
  box-shadow: 0 2px 5px rgba(91, 72, 54, .09);
  color: var(--lt-brown-deep);
}

.latex-code-label {
  color: #76675c;
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  margin-bottom: 7px;
}

#latex-output {
  background: rgba(255, 255, 255, .56);
  border: 1px solid rgba(126, 91, 65, .20);
  border-radius: 9px;
  color: #4d443e;
  display: block;
  flex: 1;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  line-height: 1.7;
  min-height: 238px;
  outline: none;
  padding: 12px;
  resize: vertical;
  transition: border-color .2s ease, box-shadow .2s ease;
  width: 100%;
}

#latex-output:focus {
  border-color: rgba(154, 101, 69, .62);
  box-shadow: 0 0 0 3px rgba(154, 101, 69, .10);
}

#latex-output::placeholder {
  color: #ad9d91;
}

.latex-editor-footer {
  align-items: center;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  margin-top: 11px;
}

.latex-editor-state,
.latex-preview-hint {
  color: #948277;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 10px;
  line-height: 1.6;
}

.latex-editor-state i,
.latex-preview-hint i {
  color: #9a6545;
  margin-right: 3px;
}

.latex-result-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.latex-secondary-button,
.latex-text-button {
  background: transparent;
  border: 0;
  color: var(--lt-brown);
  cursor: pointer;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px;
  padding: 6px 2px;
}

.latex-secondary-button {
  border-bottom: 1px solid rgba(154, 101, 69, .5);
}

.latex-secondary-button:hover,
.latex-text-button:hover {
  color: var(--lt-brown-deep);
}

.latex-connector {
  align-items: center;
  display: flex;
  justify-content: center;
}

.latex-connector span {
  align-items: center;
  background: rgba(154, 101, 69, .12);
  border-radius: 50%;
  color: var(--lt-brown);
  display: flex;
  font-size: 13px;
  height: 28px;
  justify-content: center;
  width: 28px;
}

.latex-render-box {
  background: rgba(255, 255, 255, .46);
  border: 1px solid rgba(126, 91, 65, .14);
  border-radius: 11px;
  display: flex;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.latex-render-heading {
  align-items: center;
  border-bottom: 1px solid rgba(126, 91, 65, .11);
  color: #786a60;
  display: flex;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 10px;
  justify-content: space-between;
  letter-spacing: .04em;
  padding: 8px 11px;
}

.latex-render-heading span:last-child {
  color: var(--lt-brown);
}

.latex-render-content {
  align-items: center;
  color: var(--lt-ink);
  display: flex;
  flex: 1;
  justify-content: center;
  min-height: 238px;
  overflow-x: auto;
  padding: 26px 20px;
}

.latex-render-content .MathJax,
.latex-render-content mjx-container {
  font-size: 126% !important;
}

.latex-render-content.is-empty {
  color: #a59487;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12px;
}

.latex-preview-hint {
  margin: 11px 1px 0;
}

.latex-quick-section {
  align-items: center;
  border-radius: 16px;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(170px, .7fr) minmax(0, 1.3fr);
  margin-top: 18px;
  padding: 22px 25px;
}

.latex-quick-section h2 {
  font-size: 20px;
}

.latex-section-kicker {
  font-size: 10px;
  margin-bottom: 6px;
}

.latex-template-list {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.latex-template-list button {
  align-items: center;
  background: rgba(255, 255, 255, .46);
  border: 1px solid rgba(126, 91, 65, .14);
  border-radius: 9px;
  color: #6c5d52;
  cursor: pointer;
  display: flex;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 11px;
  gap: 8px;
  min-height: 45px;
  padding: 7px 9px;
  text-align: left;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.latex-template-list button:hover {
  background: rgba(241, 217, 199, .44);
  border-color: rgba(154, 101, 69, .34);
  transform: translateY(-1px);
}

.latex-template-list span {
  background: rgba(154, 101, 69, .10);
  border-radius: 5px;
  color: var(--lt-brown);
  font-family: Georgia, serif;
  font-size: 12px;
  min-width: 55px;
  padding: 4px 5px;
  text-align: center;
}

.latex-tool-guide {
  border-radius: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 18px;
  padding: 0 20px;
}

.latex-guide-item {
  align-items: flex-start;
  display: flex;
  gap: 11px;
  padding: 19px 12px;
}

.latex-guide-item + .latex-guide-item {
  border-left: 1px solid var(--lt-line);
}

.latex-guide-item > span {
  color: rgba(154, 101, 69, .65);
  font-family: Georgia, serif;
  font-size: 18px;
  line-height: 1;
}

.latex-guide-item h3 {
  font-size: 14px;
}

.latex-guide-item p {
  font-size: 11px;
  margin-top: 4px;
}

@media (max-width: 767px) {
  .latex-tool-page {
    margin-top: 0;
  }

  .latex-tool-hero {
    padding: 25px 5px 14px;
  }

  .latex-workbench {
    grid-template-columns: 1fr;
  }

  .latex-connector {
    height: 22px;
  }

  .latex-connector i {
    transform: rotate(90deg);
  }

  .latex-panel {
    padding: 18px;
  }

  .latex-editor-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .latex-result-actions {
    justify-content: flex-start;
  }

  .latex-quick-section {
    align-items: stretch;
    grid-template-columns: 1fr;
    padding: 19px;
  }

  .latex-tool-guide {
    grid-template-columns: 1fr;
    padding: 4px 17px;
  }

  .latex-guide-item + .latex-guide-item {
    border-left: 0;
    border-top: 1px solid var(--lt-line);
  }
}

@media (max-width: 420px) {
  .latex-template-list {
    grid-template-columns: 1fr;
  }

  .latex-status {
    display: none;
  }
}