:root {
  --ai-accent: #0d6efd;
  --ai-accent-soft: rgba(13, 110, 253, 0.1);
  --ai-ink: #16324f;
  --ai-surface: #ffffff;
  --ai-muted: #667085;
  --ai-border: #d8e2ef;
  --ai-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --ai-quote-bg: linear-gradient(180deg, #f8fbff 0%, #f4f7fb 100%);
}

body {
  background:
    radial-gradient(circle at top right, rgba(13, 110, 253, 0.08), transparent 22rem),
    linear-gradient(180deg, #f8fafc 0%, #eef4fb 100%);
}

#page-content-wrapper {
  background: transparent;
}

.sidebar-heading {
  color: var(--ai-ink);
}

.ai-section {
  margin-bottom: 1.5rem;
}

.ai-section-title {
  color: var(--ai-ink);
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.ai-hero {
  background: linear-gradient(135deg, #fafdff 0%, #eaf2ff 45%, #f5f8ff 100%);
  border: 1px solid var(--ai-border);
  border-radius: 1.25rem;
  box-shadow: var(--ai-shadow);
  padding: 1.75rem;
}

.ai-kpi {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(13, 110, 253, 0.12);
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  height: 100%;
}

.ai-kpi-label {
  color: var(--ai-muted);
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ai-kpi-value {
  color: var(--ai-ink);
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
}

#ai-japanese {
  display: grid;
  gap: 1.5rem;
}

#ai-japanese > .accordion-item {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--ai-border);
  border-radius: 1rem;
  box-shadow: var(--ai-shadow);
  overflow: hidden;
}

#ai-japanese .accordion-header {
  margin: 0;
}

#ai-japanese .accordion-button {
  align-items: flex-start;
  background: linear-gradient(135deg, #fafdff 0%, #eef5ff 100%);
  border: 0;
  box-shadow: none;
  color: var(--ai-ink);
  font-size: 1.05rem;
  font-weight: 700;
  gap: 0.6rem;
  padding: 1.1rem 1.25rem;
}

#ai-japanese .accordion-button:not(.collapsed) {
  background: linear-gradient(135deg, #eef5ff 0%, #e4efff 100%);
  color: var(--ai-ink);
}

#ai-japanese .accordion-button:focus {
  border: 0;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.12);
}

#ai-japanese .accordion-button .badge {
  background: var(--ai-accent-soft) !important;
  border: 1px solid rgba(13, 110, 253, 0.12);
  color: var(--ai-ink);
  font-weight: 600;
}

#ai-japanese .accordion-button::after {
  margin-top: 0.15rem;
}

#ai-japanese .accordion-body {
  background: rgba(255, 255, 255, 0.7);
  padding: 1.35rem 1.35rem 1.5rem;
}

#ai-japanese h5,
#ai-japanese h6 {
  color: var(--ai-ink);
}

#ai-japanese p,
#ai-japanese li {
  color: #223247;
}

#ai-japanese a {
  text-decoration-thickness: 1px;
}

.cmd-block,
#ai-japanese pre {
  background: linear-gradient(180deg, #19352e 0%, #132b25 100%);
  border: 1px solid #2d564a;
  border-radius: 0.95rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  color: #f3e7a1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.94rem;
  line-height: 1.55;
  padding: 1rem 1.1rem;
  white-space: pre-wrap;
}

.cmd-prompt {
  color: #f7d774;
}

.cmd-output {
  color: #d2f7d5;
}

#ai-japanese .img-thumbnail {
  background: #fff;
  border: 1px solid var(--ai-border);
  border-radius: 0.9rem;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  margin: 0 0.55rem 0.75rem 0;
  padding: 0.3rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

#ai-japanese .img-thumbnail:hover {
  box-shadow: 0 18px 30px rgba(15, 23, 42, 0.12);
  transform: translateY(-2px);
}

#ai-japanese .border.rounded {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--ai-border) !important;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.ai-last-update {
  color: var(--ai-muted);
  font-size: 0.95rem;
}

@media (max-width: 767.98px) {
  .ai-hero {
    padding: 1.25rem;
  }

  #ai-japanese .accordion-button,
  #ai-japanese .accordion-body {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

.ai-prompt {
  background: linear-gradient(180deg, #19352e 0%, #132b25 100%);
  border: 1px solid #2d564a;
  border-radius: 0.95rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  color: #f3e7a1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.94rem;
  line-height: 1.55;
  padding: 1rem 1.1rem;
  white-space: pre-wrap;
}