/* ══════════════════════════════════════════════
   Research Page Styles
   ══════════════════════════════════════════════ */

/* ── Core Insight quote ── */
.insight-section {
  position: relative;
  z-index: 10;
  background: var(--bg);
  padding: 80px 48px 80px;
  text-align: center;
}

.insight-inner {
  max-width: 780px;
  margin: 0 auto;
}

.insight-quote {
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  font-weight: 200;
  line-height: 2;
  color: rgba(255, 255, 255, 0.85);
  font-style: italic;
}

.insight-quote .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.insight-quote .word.shown {
  opacity: 1;
  transform: translateY(0);
}

.insight-quote .word.accent {
  color: var(--accent);
  font-weight: 300;
}

.insight-source {
  margin-top: 20px;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.2);
  opacity: 0;
  transition: opacity 0.6s ease;
}

.insight-source.visible { opacity: 1; }

/* ── Research modules grid ── */
.modules-section {
  position: relative;
  z-index: 10;
  background: var(--bg);
  padding: 80px 24px 80px;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.modules-inner {
  max-width: 960px;
  margin: 0 auto;
}

.modules-header {
  text-align: center;
  margin-bottom: 40px;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.module-card {
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  padding: 24px 22px;
  opacity: 0;
  transform: translateY(18px);
  transition: border-color 0.3s ease;
}

.module-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s ease;
}

.module-card:nth-child(1).visible { transition-delay: 0s; }
.module-card:nth-child(2).visible { transition-delay: 0.08s; }
.module-card:nth-child(3).visible { transition-delay: 0.16s; }
.module-card:nth-child(4).visible { transition-delay: 0.24s; }

.module-card:hover {
  border-color: rgba(255, 107, 53, 0.15);
}

.module-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.module-card h3 {
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.8);
}

.module-badge {
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  font-weight: 400;
}

.module-badge.active {
  background: rgba(255, 107, 53, 0.12);
  color: var(--accent);
  border: 1px solid rgba(255, 107, 53, 0.2);
}

.module-badge.dev {
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.module-card p {
  font-size: 0.75rem;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.45);
}

.module-card .module-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.module-card .module-link:hover { opacity: 0.7; }

/* ── Open Questions ── */
.questions-section {
  position: relative;
  z-index: 10;
  background: var(--bg);
  padding: 80px 24px 80px;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.questions-inner {
  max-width: 700px;
  margin: 0 auto;
}

.questions-header {
  text-align: center;
  margin-bottom: 40px;
}

.question-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  opacity: 0;
  transform: translateY(14px);
}

.question-item.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.question-item:nth-child(2).visible { transition-delay: 0.06s; }
.question-item:nth-child(3).visible { transition-delay: 0.12s; }
.question-item:nth-child(4).visible { transition-delay: 0.18s; }
.question-item:nth-child(5).visible { transition-delay: 0.24s; }

.question-num {
  flex: 0 0 auto;
  font-size: 1.1rem;
  font-weight: 200;
  color: rgba(255, 107, 53, 0.35);
  font-variant-numeric: tabular-nums;
  line-height: 1.6;
}

.question-text {
  font-size: 0.82rem;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
}

/* ── Publications & Code ── */
.publications-section {
  position: relative;
  z-index: 10;
  background: var(--bg);
  padding: 60px 24px 80px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.pub-inner {
  max-width: 600px;
  margin: 0 auto;
}

.pub-inner p {
  font-size: 0.8rem;
  font-weight: 300;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  padding: 8px 20px;
  border: 1px solid rgba(255, 107, 53, 0.2);
  border-radius: 4px;
  transition: all 0.3s ease;
}

.pub-link:hover {
  border-color: rgba(255, 107, 53, 0.4);
  background: rgba(255, 107, 53, 0.04);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .insight-section { padding: 60px 24px; }
  .modules-grid { grid-template-columns: 1fr; }
  .questions-section { padding: 60px 16px; }
  .publications-section { padding: 40px 16px 60px; }
}