/* ============================================================
   TOKENS
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --white:     #ffffff;
  --off-white: #fdfbfc;
  --pink-50:   #fff0f4;
  --pink-100:  #ffe2ea;
  --pink-200:  #ffc5d3;
  --pink-300:  #ffaabe;
  --pink-400:  #e8829a;
  --pink-500:  #d4607c;
  --pink-600:  #b84565;
  --gray-100:  #f5f2f3;
  --gray-200:  #eae5e8;
  --gray-300:  #cec7cb;
  --gray-500:  #8a7f84;
  --gray-700:  #3e3640;
  --gray-900:  #18141a;
  --nav-dark:  #1c1820;
  --sans:  'DM Sans', system-ui, sans-serif;
  --serif: 'Newsreader', Georgia, serif;
  --mono:  'JetBrains Mono', monospace;
  --nav-h: 60px;
  --r-sm:   6px;
  --r-md:  14px;
  --r-lg:  22px;
  --r-full: 999px;
  --shadow-sm: 0 1px 6px rgba(160,80,110,0.07);
  --shadow-md: 0 4px 20px rgba(160,80,110,0.12);
}

html { font-size: 16px; }
body {
  font-family: var(--sans);
  background: var(--off-white);
  color: var(--gray-900);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   NAVBAR  —  matches the reference image
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.93);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 100;
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo { display: none; }

/* Link list */
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.1rem;
  flex-wrap: nowrap;
  justify-content: center;
}

.nav-link {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
  text-decoration: none;
  padding: 0.42rem 0.9rem;
  border-radius: var(--r-full);
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--gray-900);
}

/* Active = dark filled pill, exactly like the reference */
.nav-link.active {
  background: var(--nav-dark);
  color: var(--white) !important;
}

/* ============================================================
   LAYOUT
   ============================================================ */
main { padding-top: var(--nav-h); }

.page {
  display: none;
  max-width: 820px;
  margin: 0 auto;
  padding: 4.5rem 2rem 8rem;
  animation: fadeUp 0.25s ease;
}
.page.active { display: block; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   HOME
   ============================================================ */
.hero { padding: 2rem 0 1rem; }

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--pink-400);
  margin-bottom: 1.1rem;
}

.hero-name {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 9vw, 6.5rem);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--gray-900);
  margin-bottom: 0.9rem;
  white-space: nowrap;
}
.hero-name em { font-style: italic; color: var(--pink-400); }

.hero-sub {
  font-family: var(--serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--gray-500);
  margin-bottom: 3rem;
}

.home-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.home-card {
  all: unset;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  padding: 1.4rem 1.5rem 1.2rem;
  box-shadow: var(--shadow-sm);
  text-align: left;
  transition: box-shadow 0.18s, transform 0.18s, border-color 0.18s;
  position: relative;
}
.home-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--pink-200);
}

.hc-cat {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--pink-400);
}
.hc-title {
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--gray-900);
}
.hc-arrow {
  font-size: 0.85rem;
  color: var(--pink-300);
  margin-top: 0.3rem;
}

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--pink-100);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.63rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--pink-400);
  margin-bottom: 0.6rem;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 5vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.tag-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.tag {
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--pink-600);
  background: var(--pink-50);
  border: 1px solid var(--pink-100);
  padding: 0.18rem 0.65rem;
  border-radius: var(--r-full);
}

/* ============================================================
   SUB-TABS  (within Outreach / Research / Clinical)
   ============================================================ */
.sub-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.sub-tab {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--gray-500);
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 0.45rem 1.1rem;
  border-radius: var(--r-full);
  cursor: pointer;
  transition: all 0.15s;
}
.sub-tab:hover { border-color: var(--pink-200); color: var(--pink-500); }
.sub-tab.active {
  background: var(--nav-dark);
  color: var(--white);
  border-color: var(--nav-dark);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp 0.2s ease; }

.panel-intro { margin-bottom: 1.5rem; }

.panel-cat {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pink-400);
  margin-bottom: 0.5rem;
}

.panel-title {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--gray-900);
}

/* ============================================================
   PROSE
   ============================================================ */
.prose-wrap { max-width: 680px; }

.prose {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.82;
  color: var(--gray-900);
  margin-bottom: 1.4rem;
}

.prose.drop-cap::first-letter {
  font-size: 3.4em;
  line-height: 0.78;
  float: left;
  margin-right: 0.07em;
  margin-top: 0.14em;
  font-weight: 300;
  color: var(--pink-300);
}

/* ============================================================
   ARTIFACTS
   ============================================================ */
.artifact-section {
  margin-top: 2.75rem;
  padding-top: 2rem;
  border-top: 1px solid var(--pink-100);
}

.artifact-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pink-400);
  margin-bottom: 0.9rem;
}

.artifact-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.artifact-img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  object-position: top;
  background: var(--gray-100);
  display: block;
}

.artifact-caption {
  padding: 1rem 1.25rem;
  font-family: var(--serif);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--gray-700);
  line-height: 1.6;
}

.pub-meta-row {
  padding: 0.75rem 1.25rem 1.1rem;
  border-top: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  color: var(--gray-700);
}
.pub-meta-row strong { font-weight: 600; color: var(--gray-900); }
.pub-meta-row span { font-family: var(--mono); font-size: 0.68rem; color: var(--gray-500); }

/* ============================================================
   ABOUT TAGS
   ============================================================ */
/* (reuses .tag / .tag-row above) */

/* ============================================================
   ACKNOWLEDGEMENTS
   ============================================================ */
.ack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1.75rem;
}

.ack-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.ack-org {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--pink-500);
  margin-bottom: 0.5rem;
}

.ack-note {
  font-family: var(--serif);
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--gray-700);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 1.75rem;
  max-width: 480px;
}

.contact-row {
  display: flex;
  gap: 1.5rem;
  align-items: baseline;
  padding: 0.9rem 1.4rem;
  border-bottom: 1px solid var(--gray-100);
}
.contact-row:last-child { border-bottom: none; }

.contact-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pink-400);
  width: 70px;
  flex-shrink: 0;
}

.contact-val {
  font-family: var(--serif);
  font-size: 0.97rem;
  color: var(--gray-900);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--gray-200);
  padding: 1.5rem 2rem;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.07em;
  color: var(--gray-300);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 720px) {
  .home-grid { grid-template-columns: 1fr; }
  .ack-grid  { grid-template-columns: 1fr; }
  .page { padding: 2.5rem 1.25rem 5rem; }
  .hero-name { font-size: 2.8rem; }
  .nav-inner { gap: 1rem; padding: 0 1.25rem; }
  .nav-links { gap: 0; }
  .nav-link { padding: 0.38rem 0.6rem; font-size: 0.65rem; }
}