.site-nav a[aria-current="page"] {
  color: var(--accent-text);
  text-decoration: underline;
}

.studies-page {
  border-bottom: 1px solid var(--ink);
}

.studies-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(20rem, 0.65fr);
  min-height: 34rem;
  border-bottom: 1px solid var(--ink);
}

.studies-intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(4rem, 8vw, 8rem) clamp(2rem, 7vw, 8rem) clamp(4rem, 8vw, 8rem) 0;
  border-right: 1px solid var(--rule);
}

.studies-intro h1 {
  max-width: 12ch;
  margin: 1.35rem 0 1.5rem;
  font-size: clamp(3.5rem, 6vw, 6.5rem);
  letter-spacing: -0.075em;
  line-height: 0.92;
}

.studies-dek {
  max-width: 41rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
}

.studies-method {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(2.5rem, 5vw, 5rem);
  background: var(--surface-soft);
}

.method-count {
  margin: 0 0 auto;
  color: var(--accent-text);
  font-size: clamp(3.5rem, 6vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.08em;
  line-height: 0.8;
  opacity: 0.2;
}

.studies-method h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.5rem, 2.2vw, 2.2rem);
  letter-spacing: -0.045em;
  line-height: 1;
}

.studies-method ol {
  margin: 0 0 1.5rem;
  padding: 0;
  border-top: 1px solid var(--rule);
  list-style: none;
  counter-reset: stored-field;
}

.studies-method li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--rule);
  counter-increment: stored-field;
  font-size: 0.8rem;
}

.studies-method li::before {
  content: counter(stored-field, decimal-leading-zero);
  color: var(--accent-text);
  font-weight: 700;
}

.studies-method > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.studies-index {
  padding: clamp(4rem, 7vw, 7rem) 0 clamp(5rem, 9vw, 9rem);
}

.memory-list {
  border-top: 1px solid var(--ink);
}

.study-card {
  display: grid;
  grid-template-columns: clamp(6rem, 10vw, 10rem) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 6rem);
  padding: clamp(3rem, 6vw, 6rem) 0;
  border-bottom: 1px solid var(--ink);
}

.study-folio {
  min-width: 0;
}

.study-number {
  margin: 0 0 2rem;
  color: var(--accent-text);
  font-size: clamp(4rem, 7vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.09em;
  line-height: 0.8;
  opacity: 0.18;
}

.study-eyebrow {
  margin: 0;
  color: var(--accent-text);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.study-content {
  min-width: 0;
}

.study-title {
  max-width: 24ch;
  margin: 0 0 1.5rem;
  font-size: clamp(2rem, 3.7vw, 4rem);
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.study-title a {
  text-decoration-thickness: 2px;
  text-decoration-color: var(--accent-text);
}

.study-title a:hover {
  color: var(--accent-text);
}

.study-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin: 0 0 clamp(2.5rem, 4vw, 4rem);
  color: var(--muted);
  font-size: 0.78rem;
}

.study-authors {
  color: var(--ink);
  font-weight: 700;
}

.study-venue {
  color: var(--accent-text);
}

.study-finding {
  max-width: 60rem;
  margin: 0 0 clamp(2.5rem, 4vw, 4rem);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.65;
}

.study-finding em {
  color: var(--accent-text);
  font-style: normal;
  font-weight: 700;
}

.fingerprint {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  border: 1px solid var(--rule);
  background: var(--surface-soft);
}

.fingerprint-text {
  margin: 0;
  padding: 1.25rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.fingerprint-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--accent-text);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.copy-btn {
  min-width: 10rem;
  padding: 1rem 1.25rem;
  border: 0;
  border-left: 1px solid var(--rule);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.copy-btn:hover {
  background: var(--accent);
  color: var(--on-accent);
}

.copy-btn:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: -4px;
}

.studies-note {
  max-width: 40rem;
  margin: 3rem 0 0 auto;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: right;
}

@media (max-width: 950px) {
  .studies-hero {
    grid-template-columns: 1fr;
  }

  .studies-intro {
    border-right: 0;
  }

  .studies-method {
    min-height: 27rem;
    border-top: 1px solid var(--rule);
  }
}

@media (max-width: 700px) {
  .study-card {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .study-folio {
    display: flex;
    align-items: baseline;
    gap: 1rem;
  }

  .study-number {
    margin: 0;
    font-size: 3rem;
  }

  .fingerprint {
    grid-template-columns: 1fr;
  }

  .copy-btn {
    min-height: 3rem;
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .studies-note {
    margin-left: 0;
    text-align: left;
  }
}