.solution-accordion {
  overflow: hidden;
  max-width: auto;
  display: flex;
  flex-flow: column;
  gap: 8px;
}

.solution-accordion-problem {
  display: flex;
  flex-flow: column;
  gap: 8px;
}

.solution-accordion-problem + .solution-accordion-problem {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 2px solid #e5e7eb;
}

.solution-accordion-problem-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f2937;
  line-height: 1.4;
  padding: 0 1.25rem;
}

.solution-accordion-problem-title p {
  margin: 0;
}

.solution-accordion-problem-title .katex {
  font-size: 1em;
}

.solution-accordion-steps {
  display: flex;
  flex-flow: column;
  gap: 8px;
}

.solution-accordion-item {
  background: white;
  border-radius: 12px;
}

.solution-accordion-item[open] {
  background: rgba(0, 140, 255, 0.1);
}

.solution-accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  list-style: none;
}

.solution-accordion-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #008CFF;
  color: white;
  font-weight: 500;
  font-size: 12px;
  margin-right: 12px;
  flex-shrink: 0;
}

.solution-accordion-title {
  flex: 1;
  font-weight: 500;
  color: #000;
  font-size: 16px;
  line-height: 24px;

  p {
    margin: 0;
  }
}

.solution-accordion-chevron {
  width: 1.25rem;
  height: 1.25rem;
  transition: transform 0.2s ease;
  color: #6b7280;
}

.solution-accordion-item[open] .solution-accordion-chevron {
  transform: rotate(180deg);
}

.solution-accordion-body {
  padding: 0 1.25rem 1.25rem 1.25rem;
  color: #374151;
  line-height: 1.6;
}

.solution-accordion-body p {
  margin: 0.5rem 0;
}

.solution-accordion-body p:first-child {
  margin-top: 0;
}

.solution-accordion-body p:last-child {
  margin-bottom: 0;
}

.solution-accordion-body .katex {
  font-size: 1em;
}

.solution-accordion-body .katex-display {
  margin: 0.5em 0;
  text-align: center;
}

.solution-accordion-body .katex-display > .katex {
  display: inline-block;
  white-space: nowrap;
  max-width: 100%;
  overflow-x: auto;
  text-align: initial;
}

.solution-accordion-title .katex {
  font-size: 0.9em;
}

.solution-accordion-title .katex-display {
  margin: 0;
  text-align: left;
}

html[data-theme="dark"] .solution-accordion-item {
  background: #1f2937;
  border-bottom-color: #374151;
}

html[data-theme="dark"] .solution-accordion-item[open] {
  background: #1e3a8a;
}

html[data-theme="dark"] .solution-accordion-header:hover {
  background: #374151;
}

html[data-theme="dark"] .solution-accordion-item[open] .solution-accordion-header {
  background: #1e3a8a;
}

html[data-theme="dark"] .solution-accordion-title {
  color: #f9fafb;
}

html[data-theme="dark"] .solution-accordion-chevron {
  color: #9ca3af;
}

html[data-theme="dark"] .solution-accordion-body {
  color: #d1d5db;
}

html[data-theme="dark"] .solution-accordion-problem + .solution-accordion-problem {
  border-top-color: #374151;
}

html[data-theme="dark"] .solution-accordion-problem-title {
  color: #f9fafb;
}

@media (max-width: 768px) {
  .solution-accordion-header {
    padding: 0.875rem 1rem;
  }
  
  .solution-accordion-body {
    padding: 0 1rem 1rem 1rem;
  }
  
  .solution-accordion-step-number {
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.8125rem;
    margin-right: 0.5rem;
  }
  
  .solution-accordion-title {
    font-size: 0.875rem;
  }
}


@media (max-width: 768px) {
  .solution-accordion {
    width: auto;
  }
}