/* Site footer */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 2rem 0 1.5rem;
  flex-shrink: 0;
  margin-top: auto;
  width: 100%;
}

.site-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 1.25rem;
}

.site-footer-brand {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-footer-brand a {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.site-footer-logo {
  display: block;
  height: 1.5rem;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  object-position: left center;
  filter: brightness(0) invert(1);
}

@media (min-width: 640px) {
  .site-footer {
    padding: 2.75rem 0 2rem;
  }

  .site-footer-grid {
    grid-template-columns: 1.2fr repeat(4, minmax(0, 1fr));
    gap: 2rem;
  }

  .site-footer-brand {
    grid-column: 1;
    grid-row: 1;
  }
}

@media (min-width: 900px) {
  .site-footer-grid {
    grid-template-columns: 1.7fr repeat(4, minmax(0, 1fr));
    gap: 2.5rem;
  }
}

.site-footer-col-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 0.65rem;
  letter-spacing: -0.01em;
}

@media (min-width: 640px) {
  .site-footer-col-title {
    margin: 0 0 1rem;
  }
}

.site-footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .site-footer-links {
    gap: 0.65rem;
  }
}

.site-footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  transition: color 0.2s ease;
}

.site-footer-external {
  width: 0.7rem;
  height: 0.7rem;
  flex-shrink: 0;
  opacity: 0.65;
  transition: opacity 0.2s ease;
}

@media (hover: hover) {
  .site-footer-links a:hover {
    color: var(--color-text);
  }

  .site-footer-links a:hover .site-footer-external {
    opacity: 1;
  }
}

.site-footer-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
  color: var(--color-text);
}

.site-footer-links a:active {
  color: var(--color-text);
}

.site-footer-links a:active .site-footer-external {
  opacity: 1;
}

.site-footer-brand a:active {
  opacity: 0.6;
}

.site-footer-copy {
  grid-column: 1 / -1;
  margin: 1rem 0 0;
  padding: 0;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--color-text-tertiary);
  text-wrap: balance;
}

@media (min-width: 640px) {
  .site-footer-copy {
    /* Under the logo, below the link columns */
    grid-column: 1;
    grid-row: 2;
    margin-top: 0;
    margin-left: -0.25rem;
  }
}

/* About page */
.page-hero {
  padding: 9rem 0 5rem;
  background: var(--color-bg);
}

.page-hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.045em;
  color: var(--color-text);
  max-width: 18ch;
  margin: 0 0 1.5rem;
}

.page-hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  max-width: 34rem;
  margin: 0;
  font-weight: 400;
  letter-spacing: -0.011em;
}

@media (min-width: 768px) {
  .page-hero {
    padding-bottom: 6rem;
  }

  .page-hero-subtitle {
    font-size: 1.125rem;
  }
}

@media (max-width: 767px) {
  .page-hero {
    padding-bottom: 4rem;
  }
}

.page-section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .page-section {
    padding: 5.5rem 0;
  }
}

/* Match homepage hero → next-section spacing (no rule) */
.page-section--after-hero {
  border-top: none;
  padding-top: 0;
}

.page-hero:has(+ .page-section--after-hero) {
  padding-bottom: 7rem;
}

@media (min-width: 768px) {
  .page-hero:has(+ .page-section--after-hero) {
    padding-bottom: 9rem;
  }
}

.page-section-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin: 0 0 1.5rem;
  line-height: 1.4;
}

.page-section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--color-text);
  max-width: 18ch;
  margin: 0 0 1.5rem;
}

.page-prose {
  max-width: 40rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-prose p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  letter-spacing: -0.011em;
}

@media (min-width: 768px) {
  .page-prose p {
    font-size: 1rem;
  }
}

.team-people {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  /* Divider matches the homepage rule above the research intro */
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .team-people {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.team-person-name {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}

.team-person-role {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  margin: 0 0 1rem;
}

.team-person-bio {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
  letter-spacing: -0.011em;
}

.team-person-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: color 0.2s ease;
}

.team-person-link .site-footer-external {
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

@media (hover: hover) {
  .team-person-link:hover {
    color: var(--color-text);
  }

  .team-person-link:hover .site-footer-external {
    opacity: 1;
  }
}

.team-person-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.team-person-link:active {
  opacity: 0.65;
}

/* Legal pages (privacy / terms) — reuse about page hero + left-aligned prose */
.legal-content {
  margin: 0;
  text-align: left;
}

.legal-content h2 {
  margin: 0.5rem 0 0;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--color-text);
}

.legal-content h3 {
  margin: 0.25rem 0 0;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-text);
}

.legal-content ul {
  margin: 0;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.legal-content li {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  letter-spacing: -0.011em;
}

.legal-content a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
  transition: color 0.3s ease;
}

.legal-content a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

@media (hover: hover) {
  .legal-content a:hover::after {
    width: 100%;
  }
}

.legal-content a:active {
  opacity: 0.65;
}

.legal-content a:active::after {
  width: 100%;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

.contact-card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-bg-elevated);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

@media (hover: hover) {
  .contact-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-2px);
  }
}

.contact-card h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 0.5rem;
}

.contact-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
  line-height: 1.5;
}

.contact-card span {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
}

/* Contact page — Linear-style layout */
.contact-page {
  padding: 9rem 0 0;
  background: var(--color-bg);
}

.contact-page-inner {
  padding-bottom: 3rem;
}

@media (min-width: 768px) {
  .contact-page-inner {
    padding-bottom: 3.5rem;
  }
}

.contact-hero {
  text-align: left;
  margin: 0 0 2.25rem;
  max-width: 34rem;
}

@media (min-width: 768px) {
  .contact-hero {
    margin-bottom: 2.75rem;
  }
}

.contact-hero-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.875rem, 3.75vw, 2.5rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.04em;
  color: var(--color-text);
}

.contact-hero-subtitle {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.55;
  letter-spacing: -0.011em;
  color: var(--color-text-secondary);
}

.contact-primary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .contact-primary {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .contact-primary--three {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact-primary-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-bg);
  text-decoration: none;
  transition: border-color 0.15s ease;
}

@media (min-width: 768px) {
  .contact-primary-card {
    padding: 2rem 2rem 2.15rem;
    min-height: 0;
  }
}

@media (hover: hover) {
  a.contact-primary-card:hover {
    border-color: var(--color-border-strong);
  }

  a.contact-primary-card:hover .contact-primary-email::after {
    width: 100%;
  }
}

a.contact-primary-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-color: var(--color-border-strong);
}

a.contact-primary-card:focus-visible .contact-primary-email::after {
  width: 100%;
}

a.contact-primary-card:active {
  border-color: var(--color-border-strong);
  background: var(--color-bg-elevated);
}

a.contact-primary-card:active .contact-primary-email::after {
  width: 100%;
}

.contact-primary-title {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.3;
}

.contact-primary-text {
  margin: 0 0 1.75rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  letter-spacing: -0.011em;
  color: var(--color-text-secondary);
  flex: 1;
}

.contact-primary-email {
  position: relative;
  display: inline-block;
  max-width: 100%;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.contact-primary-email::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.contact-primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius-control);
  border: 1px solid #fff;
  background: #fff;
  color: #121212;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

@media (hover: hover) {
  .contact-primary-cta:hover {
    background: #e6e6e6;
    border-color: #e6e6e6;
  }
}

.contact-primary-cta:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.contact-secondary-heading {
  margin: 0 0 1.75rem;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.contact-secondary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .contact-secondary-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 3rem;
  }
}

.contact-secondary-item {
  display: block;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  transition: opacity 0.15s ease;
}

@media (hover: hover) {
  .contact-secondary-item:hover .contact-secondary-title,
  .contact-secondary-item:hover .contact-secondary-meta {
    color: var(--color-text);
  }
}

.contact-secondary-item:active {
  opacity: 0.65;
}

.contact-secondary-title {
  margin: 0 0 0.35rem;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.contact-secondary-text {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.contact-secondary-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text-secondary);
}

.contact-secondary-meta .site-footer-external {
  opacity: 0.7;
}