/* ============================================
   Research Authority Section
   Institutional-quality research footer
   Design: Morningstar × Bloomberg Terminal
   ============================================ */

/* ── Authority Container ── */
.ra-section {
  border-top: 1px solid var(--color-border-light);
  padding-top: 2.5rem;
}
.ra-section__title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-text-subtle);
  margin-bottom: 1.25rem;
}

/* ── Timeline ── */
.ra-timeline {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 2rem;
}
.ra-timeline::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--color-border);
  border-radius: 1px;
}
.ra-timeline__item {
  position: relative;
  padding: 0.5rem 0 0.5rem 1rem;
}
.ra-timeline__dot {
  position: absolute;
  left: -1.5rem;
  top: 0.7rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 1px var(--color-border);
}
.ra-timeline__dot--green { background: var(--color-positive); box-shadow: 0 0 0 1px var(--color-positive); }
.ra-timeline__dot--blue { background: var(--color-info); box-shadow: 0 0 0 1px var(--color-info); }
.ra-timeline__dot--purple { background: #7c3aed; box-shadow: 0 0 0 1px #7c3aed; }
.ra-timeline__date {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-text-subtle);
  margin-bottom: 0.1rem;
}
.ra-timeline__text {
  font-size: 0.78rem;
  color: var(--color-text);
  font-weight: 500;
}

/* ── Confidence Breakdown ── */
.ra-confidence {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.ra-confidence__item {
  padding: 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
}
.ra-confidence__label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--color-text-subtle);
  margin-bottom: 0.4rem;
}
.ra-confidence__bar {
  height: 4px;
  background: var(--color-border-light);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.3rem;
}
.ra-confidence__fill {
  height: 100%;
  border-radius: 2px;
  background: var(--color-positive);
  transition: width 0.6s ease;
}
.ra-confidence__fill--amber { background: var(--color-warning); }
.ra-confidence__value {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

/* ── Change Factors ── */
.ra-factors {
  margin-bottom: 2rem;
}
.ra-factors__list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.ra-factors__item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.6rem 0.8rem;
  background: rgba(180, 83, 9, 0.03);
  border: 1px solid rgba(180, 83, 9, 0.08);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--color-text);
  line-height: 1.4;
}
.ra-factors__icon {
  flex-shrink: 0;
  font-size: 0.7rem;
  margin-top: 0.1rem;
}

/* ── Sources Grid ── */
.ra-sources {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 2rem;
}
.ra-source {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.9rem;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
}
.ra-source__type {
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
}
.ra-source__date {
  color: var(--color-text-subtle);
  font-size: 0.68rem;
}
.ra-source__confidence {
  padding: 0.15rem 0.45rem;
  background: var(--badge-green-bg);
  color: var(--badge-green-text);
  border-radius: 10px;
  font-size: 0.6rem;
  font-weight: 700;
}
.ra-source__link {
  color: var(--color-primary);
  font-size: 0.68rem;
  text-decoration: none;
  font-weight: 600;
}
.ra-source__link:hover { text-decoration: underline; }

/* ── Related & Alternatives Grid ── */
.ra-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.ra-related-card {
  display: block;
  padding: 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all 0.2s ease;
}
.ra-related-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transform: translateY(-1px);
}
.ra-related-card__name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.2rem;
}
.ra-related-card__meta {
  font-size: 0.68rem;
  color: var(--color-text-muted);
}
.ra-related-card__confidence {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--color-positive);
}

/* ── Request Review ── */
.ra-request {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}
.ra-request__text {
  font-size: 0.82rem;
  color: var(--color-text);
}
.ra-request__text strong {
  color: var(--color-primary-dark);
}
.ra-request__btn {
  flex-shrink: 0;
  padding: 0.55rem 1.1rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-white);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}
.ra-request__btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ── Research Standard Badge ── */
.ra-standard {
  text-align: center;
  padding: 1.5rem;
  border-top: 1px solid var(--color-border-light);
}
.ra-standard__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  background: var(--badge-green-bg);
  border-radius: 20px;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--badge-green-text);
  margin-bottom: 0.5rem;
}
.ra-standard__text {
  font-size: 0.72rem;
  color: var(--color-text-subtle);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.5;
}
.ra-standard__link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}
.ra-standard__link:hover { text-decoration: underline; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .ra-confidence { grid-template-columns: 1fr; }
  .ra-related-grid { grid-template-columns: 1fr; }
  .ra-request { flex-direction: column; gap: 0.75rem; text-align: center; }
}


/* ══════════════════════════════════════════════════════════════════════════════
   Knowledge Linking Components
   ══════════════════════════════════════════════════════════════════════════════ */

/* ── Related Guides ── */
.kl-guides {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 2rem;
}
.kl-guide {
  display: block;
  padding: 1rem 1.1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.2s ease;
}
.kl-guide:hover {
  border-color: var(--color-primary-light);
  background: var(--color-white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}
.kl-guide__title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 0.2rem;
}
.kl-guide__desc {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ── How We Assessed This ── */
.kl-method {
  margin-bottom: 2rem;
}
.kl-method__step {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border-light);
}
.kl-method__step:last-of-type { border-bottom: none; }
.kl-method__num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--color-text-subtle);
}
.kl-method__text {
  font-size: 0.78rem;
  color: var(--color-text);
  line-height: 1.5;
  padding-top: 0.1rem;
}
.kl-method__link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}
.kl-method__link:hover { text-decoration: underline; }

/* ── FAQ ── */
.kl-faq {
  margin-bottom: 2rem;
}
.kl-faq__item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: 0.5rem;
  background: var(--color-white);
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.kl-faq__item[open] {
  border-color: var(--color-primary-light);
}
.kl-faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  cursor: pointer;
  list-style: none;
}
.kl-faq__q::-webkit-details-marker { display: none; }
.kl-faq__q::after {
  content: '+';
  flex-shrink: 0;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-subtle);
  transition: transform 0.2s ease;
}
.kl-faq__item[open] .kl-faq__q::after {
  content: '−';
  color: var(--color-primary);
}
.kl-faq__a {
  padding: 0 1.1rem 1rem;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.kl-faq__a p { margin: 0; }

/* ── Learn More ── */
.kl-learn {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.kl-learn__card {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.15s ease;
}
.kl-learn__card:hover {
  border-color: var(--color-primary-light);
  background: var(--color-white);
}
.kl-learn__icon {
  flex-shrink: 0;
  color: var(--color-primary);
  display: flex;
  align-items: center;
}
.kl-learn__text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .kl-guides { grid-template-columns: 1fr; }
  .kl-learn { flex-direction: column; }
}