/* ===== ABOUT PAGE ===== */

/* TOC */
.toc { max-width: 480px; }
.toc__list {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toc__list li {
  counter-increment: toc;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.toc__list li::before {
  content: counter(toc, decimal-leading-zero);
  font-size: 0.72rem;
  color: var(--accent);
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.05em;
  min-width: 24px;
}
.toc__list a {
  color: var(--text);
  font-size: 0.88rem;
}
.toc__list a:hover { color: var(--accent); }

/* SECTION */
.about-section { }
.alt-bg { background: var(--surface); }

.prose p { margin-bottom: 1rem; font-size: 0.95rem; }

/* SPLIT LAYOUT */
.about-split {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}
.about-split__text p { margin-bottom: 1rem; }

/* ABOUT GRID (used in article-style pages) */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3rem;
  align-items: start;
}
.about-text p { margin-bottom: 1rem; font-size: 0.95rem; line-height: 1.8; }
.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.stat-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

/* FAQ answer alias */
.faq-a {
  padding: 0 0 1.2rem;
}
.faq-a p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 0.75rem;
}
.faq-a p:last-child { margin-bottom: 0; }

/* DATA TABLE */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.data-table th,
.data-table td {
  text-align: left;
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid rgba(139, 124, 248, 0.18);
}
.data-table thead th {
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid rgba(139, 124, 248, 0.3);
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: rgba(139, 124, 248, 0.04); }

@media (max-width: 700px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { flex-direction: row; flex-wrap: wrap; }
  .stat-card { flex: 1; min-width: 130px; }
}

/* STAT CARD */
.asmr-stat-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.asmr-stat strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
}
.asmr-stat span {
  font-size: 0.8rem;
  color: var(--muted);
}

/* TINGLE PATH */
.tingle-path {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  margin-top: 3rem;
  max-width: 520px;
}

.tingle-step {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1rem 1.2rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
}

.tingle-step__num {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(139,124,248,0.1);
  border: 1px solid rgba(139,124,248,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
}

.tingle-step__text strong {
  display: block;
  color: var(--text);
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
  font-family: var(--font-sans);
  font-weight: 500;
}
.tingle-step__text span {
  font-size: 0.8rem;
  color: var(--muted);
}

.tingle-arrow {
  font-size: 1.2rem;
  color: rgba(139,124,248,0.3);
  padding: 0.2rem 0 0.2rem 1.6rem;
}

/* RESEARCH */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.2rem;
}

.research-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.research-card__year {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent2);
  text-transform: uppercase;
  font-weight: 500;
}

.research-card__title { font-size: 1.05rem; }

.research-card cite {
  font-size: 0.72rem;
  color: var(--muted);
  font-style: italic;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

/* BENEFITS */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.benefit-item { }

.benefit-item__icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.benefit-item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

/* TRIGGER TYPES LIST */
.triggers-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.trigger-type {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.trigger-type:first-child { border-top: 1px solid var(--border); }

.trigger-type__num {
  flex-shrink: 0;
  font-family: var(--font-serif);
  font-size: 2rem;
  color: rgba(139,124,248,0.2);
  line-height: 1;
  min-width: 48px;
}

.trigger-type__body h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

/* HOW-TO STEPS */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}

.howto-step__icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
}

.howto-step h3 { margin-bottom: 0.5rem; }

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 780px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }

.faq-item summary {
  padding: 1.2rem 0;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 400;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  color: var(--accent);
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--accent); }

.faq-answer {
  padding: 0 0 1.2rem;
}
.faq-answer p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 0.75rem;
}
.faq-answer p:last-child { margin-bottom: 0; }

/* CTA */
.cta-section {
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -60%; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(139,124,248,0.08), transparent 70%);
  pointer-events: none;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; }
  .about-split__visual { order: -1; }
  .asmr-stat-card { flex-direction: row; flex-wrap: wrap; gap: 1rem; }
  .asmr-stat { flex: 1; min-width: 120px; }
}

@media (max-width: 600px) {
  .research-grid, .benefits-grid, .howto-steps { grid-template-columns: 1fr; }
  .trigger-type { flex-direction: column; gap: 0.5rem; }
  .trigger-type__num { font-size: 1.2rem; }
}