/* ============================================================
   Lucke-Wold Neurosurgical Evidence Lab — shared stylesheet
   Premium academic design system. Design tokens live at the
   top — edit these to re-theme the whole site from one place.
   ============================================================ */

:root {
  /* Color tokens */
  --bg:          #FAFBFC;   /* page background — off-white */
  --navy:        #123A6F;   /* primary — deep navy */
  --blue:        #2D7FF9;   /* accent — medical blue */
  --blue-dark:   #1E63CC;
  --soft-blue:   #EAF6FF;   /* accent-tinted background, used sparingly */
  --bg-alt:      #F4F6F8;   /* neutral light-gray secondary background for alternating sections */
  --card:        #FFFFFF;
  --border:      #E6ECF2;
  --text:        #1C2733;
  --text-soft:   #5B6B7C;

  /* Hero-only tokens — deep navy/blue gradient, distinct from page palette above */
  --hero-deep:   #071A2F;
  --hero-mid:    #0E4B8C;
  --hero-accent: #2D7FF9;
  --hero-pale:   #F8FAFC;

  /* Type scale */
  --font-display: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Radius / shadow / motion scale — the shared vocabulary behind every
     card, button, and panel so the whole site reads as one system. */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 3px rgba(18,58,111,0.05);
  --shadow-md: 0 12px 28px rgba(18,58,111,0.09);
  --shadow-lg: 0 26px 52px rgba(18,58,111,0.16);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 0.5em;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); letter-spacing: -0.015em; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--text-soft); }
section p, .wrap-narrow p { max-width: 68ch; }
.center p { margin-left: auto; margin-right: auto; }

.wrap-narrow ul, .wrap-narrow ol { margin: 0 0 1.4em; padding-left: 0; list-style: none; max-width: 68ch; }
.wrap-narrow ul li, .wrap-narrow ol li { position: relative; padding-left: 26px; margin-bottom: 10px; color: var(--text-soft); }
.wrap-narrow ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--blue);
  border-radius: 1px;
  transform: rotate(45deg);
}
.wrap-narrow ol { counter-reset: policy-count; }
.wrap-narrow ol li { counter-increment: policy-count; }
.wrap-narrow ol li::before {
  content: counter(policy-count);
  position: absolute;
  left: 0;
  top: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--soft-blue);
  color: var(--blue-dark);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: none;
}
.wrap-narrow h3 { margin-top: 1.6em; font-size: 1.08rem; }
.wrap-narrow h2 { margin-top: 0; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  background: var(--navy);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 200;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 16px; text-decoration: none; }

/* ---------- Scroll reveal ----------
   Applied only via JS (progressive enhancement): if script fails to
   load, .reveal is never added and content is fully visible by default. */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal-visible { opacity: 1; transform: translateY(0); }

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: var(--blue);
  display: block;
  margin-bottom: 0.7em;
  font-weight: 500;
}

.wrap {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.wrap-narrow {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 88px 0; }
section[id] { scroll-margin-top: 96px; }

/* ---------- Signature element: forest-plot rule ----------
   A hairline divider with a square point-estimate marker and
   diamond, echoing the forest plots used in meta-analysis —
   the lab's core method. Used between major sections. */
.fp-rule {
  display: flex;
  align-items: center;
  width: 100%;
  height: 20px;
  margin: 0 auto;
}
.fp-rule::before,
.fp-rule::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}
.fp-rule .fp-marker {
  width: 9px;
  height: 9px;
  background: var(--blue);
  margin: 0 14px;
  flex-shrink: 0;
  transform: rotate(45deg);
}

/* ---------- Header / nav — transparent over hero, solid on scroll ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7,26,47,0.22);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 2px 18px rgba(18,58,111,0.08);
  border-bottom: 1px solid var(--border);
}
.site-header.no-hero {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: 0 2px 18px rgba(18,58,111,0.08);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  letter-spacing: 0.01em;
  transition: color 0.25s ease;
}
.site-header.scrolled .brand, .site-header.no-hero .brand { color: var(--navy); }
.brand:hover { text-decoration: none; opacity: 0.85; }
.brand img { height: 44px; width: auto; display: block; }

.nav-toggle {
  background: none;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 4px;
  width: 44px;
  height: 40px;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
}
.site-header.scrolled .nav-toggle, .site-header.no-hero .nav-toggle { border-color: var(--border); }
.nav-toggle span { width: 20px; height: 2px; background: #fff; display: block; transition: background 0.25s ease; }
.site-header.scrolled .nav-toggle span, .site-header.no-hero .nav-toggle span { background: var(--navy); }

.site-nav { display: flex; align-items: center; gap: 2px; }
.site-nav > a, .nav-parent-btn {
  color: #fff;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.86rem;
  padding: 10px 14px;
  display: block;
  white-space: nowrap;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 5px;
  position: relative;
  transition: color 0.25s ease, background 0.2s ease;
}
.site-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.site-nav > a:not(.nav-cta):hover::after { transform: scaleX(1); }
.site-header.scrolled .site-nav > a, .site-header.no-hero .site-nav > a,
.site-header.scrolled .nav-parent-btn, .site-header.no-hero .nav-parent-btn { color: var(--navy); }
.site-nav > a:hover, .nav-parent-btn:hover { background: rgba(255,255,255,0.14); text-decoration: none; }
.site-header.scrolled .site-nav > a:hover, .site-header.no-hero .site-nav > a:hover,
.site-header.scrolled .nav-parent-btn:hover, .site-header.no-hero .nav-parent-btn:hover { background: var(--soft-blue); }

.nav-cta {
  background: var(--blue);
  color: #fff !important;
  border-radius: 5px;
  margin-left: 8px;
  padding: 10px 20px;
}
.nav-cta:hover { background: var(--blue-dark) !important; }

.nav-item-dropdown { position: relative; }
.nav-parent-btn { display: flex; align-items: center; gap: 4px; }
.caret { font-size: 0.6rem; }
.dropdown-panel {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-width: 210px;
  box-shadow: var(--shadow-lg);
  flex-direction: column;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s;
}
.dropdown-panel.open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
.dropdown-panel a {
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.86rem;
  padding: 10px 12px;
  border-radius: 5px;
  display: block;
  transition: background 0.18s ease, color 0.18s ease, padding-left 0.18s ease;
}
.dropdown-panel a:hover { background: var(--soft-blue); color: var(--navy); text-decoration: none; padding-left: 16px; }

/* Body scroll lock while the mobile menu is open */
body.nav-locked { overflow: hidden; height: 100%; }

/* Dark semi-transparent overlay behind the mobile menu */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 98;
  background: rgba(4,14,26,0.55);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}
.nav-overlay.open { opacity: 1; visibility: visible; }

@media (max-width: 980px) {
  .nav-toggle { display: flex; z-index: 101; position: relative; }
  .site-header.menu-open {
    background: rgba(7,26,47,0.92) !important;
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    box-shadow: none !important;
    border-bottom-color: rgba(255,255,255,0.1) !important;
  }
  .site-header.menu-open .brand { color: #fff !important; }
  .site-header.menu-open .nav-toggle { border-color: rgba(255,255,255,0.5) !important; }
  /* Toggle morphs into an X while the menu is open, for clear affordance */
  .nav-toggle span { transition: transform 0.3s var(--ease), opacity 0.2s var(--ease), background 0.25s ease; }
  .site-header.menu-open .nav-toggle span { background: #fff !important; }
  .site-header.menu-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .site-header.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .site-header.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  .nav-overlay { display: block; }

  /* Full-screen premium panel — completely covers the page, hero included */
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    z-index: 99;
    width: 100%;
    height: 100dvh;
    margin: 0;
    background: linear-gradient(165deg, var(--hero-deep) 0%, #0A2F52 55%, var(--hero-mid) 100%);
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: 100px 32px 48px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 4px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateX(28px);
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), visibility 0.4s var(--ease);
  }
  .site-nav.open { opacity: 1; visibility: visible; transform: translateX(0); }

  /* Staggered fade-up entrance for each item, premium rather than a static list */
  .site-nav > a, .site-nav > .nav-item-dropdown {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
  }
  .site-nav.open > a, .site-nav.open > .nav-item-dropdown { opacity: 1; transform: translateY(0); }
  .site-nav.open > a:nth-child(1) { transition-delay: 0.08s; }
  .site-nav.open > .nav-item-dropdown:nth-child(2) { transition-delay: 0.12s; }
  .site-nav.open > a:nth-child(3) { transition-delay: 0.16s; }
  .site-nav.open > a:nth-child(4) { transition-delay: 0.2s; }
  .site-nav.open > a:nth-child(5) { transition-delay: 0.24s; }
  .site-nav.open > a:nth-child(6) { transition-delay: 0.28s; }
  .site-nav.open > a:nth-child(7) { transition-delay: 0.32s; }
  .site-nav.open > a:nth-child(8) { transition-delay: 0.36s; }

  .site-nav > a, .nav-parent-btn {
    color: #fff !important;
    padding: 18px 6px;
    text-align: left;
    width: 100%;
    font-size: 1.15rem;
    font-family: var(--font-display);
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    border-radius: 0;
  }
  .site-nav > a:not(.nav-cta)::after { display: none; }
  .site-nav > a:hover, .nav-parent-btn:hover { background: rgba(255,255,255,0.06); }
  .nav-item-dropdown { width: 100%; }
  .nav-item-dropdown .nav-parent-btn { justify-content: space-between; }
  .dropdown-panel {
    position: static;
    display: flex;
    box-shadow: none;
    border: none;
    background: transparent;
    flex-direction: column;
    max-height: 0;
    margin: 0;
    padding: 0 0 0 18px;
    overflow: hidden;
    transition: max-height 0.32s var(--ease), padding 0.32s var(--ease), opacity 0.22s var(--ease), visibility 0.32s var(--ease);
  }
  .dropdown-panel.open {
    max-height: 240px;
    padding: 2px 0 8px 18px;
  }
  .dropdown-panel a { color: rgba(255,255,255,0.78) !important; font-size: 1rem; padding: 12px 10px; }
  .dropdown-panel a:hover { background: rgba(255,255,255,0.08); color: #fff !important; }
  .nav-cta {
    margin: 20px 0 0;
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: 16px;
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
    border-bottom: none;
  }
}

/* ---------- Hero (home) ----------
   Cinematic dark navy gradient, soft volumetric glow, and an abstract
   scientific-imaging contour graphic. Single centered column. */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  background:
    radial-gradient(ellipse 65% 55% at 88% 12%, rgba(45,127,249,0.32) 0%, rgba(45,127,249,0) 58%),
    radial-gradient(ellipse 50% 45% at 8% 92%, rgba(45,127,249,0.16) 0%, rgba(45,127,249,0) 60%),
    linear-gradient(155deg, var(--hero-deep) 0%, #0A2F52 42%, var(--hero-mid) 100%);
  overflow: hidden;
}
/* Premium diagonal sheen — a faint light sweep across the whole hero */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(115deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 20%, rgba(255,255,255,0) 78%, rgba(255,255,255,0.045) 100%);
  pointer-events: none;
}

/* Ambient decor layer behind the content: grain texture, dot grid,
   glow orbs, a soft abstract contour graphic, and drifting particles. */
.hero-bg-decor { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

/* Subtle film-grain texture — the kind of fine, almost-imperceptible
   noise that keeps a large flat gradient from looking flat/digital. */
.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Abstract MRI/signal-trace contour graphic — soft overlapping curves,
   not a node network or polygon mesh. Purely ambient depth, upper right. */
.hero-contours { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.55; }

/* Fine engineered dot-grid texture, masked so it fades toward the edges —
   adds depth without competing with the content. */
.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.09) 1px, transparent 1px);
  background-size: 32px 32px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 38%, black 0%, transparent 72%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 38%, black 0%, transparent 72%);
}

/* Large soft blurred glow orbs — the "premium lighting" layer that gives
   the hero depth and an asymmetric focal point. Decorative only. */
.hero-glow-orb { position: absolute; border-radius: 50%; filter: blur(64px); animation: heroOrbDrift ease-in-out infinite; }
.hero-glow-orb-a { width: 440px; height: 440px; top: -110px; right: 4%; background: radial-gradient(circle, rgba(93,166,255,0.5), rgba(93,166,255,0) 70%); animation-duration: 17s; }
.hero-glow-orb-b { width: 300px; height: 300px; bottom: -70px; left: 6%; background: radial-gradient(circle, rgba(45,127,249,0.3), rgba(45,127,249,0) 70%); animation-duration: 21s; animation-delay: 3s; }
.hero-glow-orb-c { width: 200px; height: 200px; bottom: 18%; right: 30%; background: radial-gradient(circle, rgba(125,180,255,0.26), rgba(125,180,255,0) 70%); animation-duration: 13s; animation-delay: 6s; }

.hero-particle {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: rgba(125,180,255,0.75);
  box-shadow: 0 0 8px 2px rgba(45,127,249,0.55);
  animation: heroFloat 9s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translate(0,0); opacity: 0.35; }
  50% { transform: translate(6px,-18px); opacity: 0.9; }
}
@keyframes heroPulse {
  0%, 100% { opacity: 0.35; r: 3; }
  50% { opacity: 0.95; r: 4.5; }
}
@keyframes heroDrift {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
@keyframes heroOrbDrift {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-22px,24px) scale(1.07); }
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: 168px 24px 130px;
}
.hero-content {
  max-width: 760px;
  text-align: center;
  opacity: 0;
  animation: heroFadeUp 0.9s ease 0.15s forwards;
}

/* Premium glass "badge" eyebrow — replaces the plain mono label */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(233,240,250,0.92);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(125,180,255,0.35);
  border-radius: 30px;
  padding: 9px 18px 9px 14px;
  margin-bottom: 2em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.hero-badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #5FA8FF;
  box-shadow: 0 0 10px 2px rgba(95,168,255,0.7);
  flex-shrink: 0;
  animation: heroPulse 2.6s ease-in-out infinite;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2.9rem, 6vw, 4.8rem);
  text-shadow: 0 2px 24px rgba(0,0,0,0.35);
  margin-bottom: 30px;
  letter-spacing: -0.02em;
}
.hero h1 .accent {
  background: linear-gradient(96deg, #BFDCFF 0%, #7DB4FF 45%, #2D7FF9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .tagline {
  font-size: 1.15rem;
  line-height: 1.75;
  color: rgba(233,240,250,0.88);
  max-width: 620px;
  margin: 0 auto 46px;
}
.hero-ctas { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-ctas .btn {
  border-radius: 30px;
  padding: 16px 30px;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 24px rgba(7,26,47,0.35);
}
.hero-ctas .btn-solid { box-shadow: 0 10px 30px rgba(45,127,249,0.4), inset 0 0 0 1px rgba(255,255,255,0.08); }
.hero-ctas .btn-solid:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(45,127,249,0.55), inset 0 0 0 1px rgba(255,255,255,0.1); }
.hero-ctas .btn-ghost-light {
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero-ctas .btn-ghost-light:hover { transform: translateY(-2px); }

.scroll-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.75);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fpBob 2.2s ease-in-out infinite;
}
.scroll-indicator svg { width: 18px; height: 18px; }
@keyframes fpBob { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,8px); } }

@media (max-width: 900px) {
  .hero-grid { padding-top: 132px; }
  .hero-content { max-width: 100%; margin: 0 auto; }
  .hero-glow-orb-a { width: 260px; height: 260px; }
  .hero-glow-orb-b { width: 200px; height: 200px; }
}
@media (max-width: 900px) and (prefers-reduced-motion: no-preference) {
  .hero { min-height: auto; padding-bottom: 40px; }
}

/* ---------- Stats strip ---------- */
.stats-strip {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 48px 0;
}
.stat { text-align: center; border-left: 1px solid var(--border); }
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--font-display);
  font-size: 2.3rem;
  color: var(--navy);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.stat .label {
  font-size: 0.76rem;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 6px;
}

/* ---------- Cards / grids ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.card-link { display: block; color: inherit; transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease); }
.card-link:hover { text-decoration: none; border-color: var(--blue); box-shadow: var(--shadow-md); transform: translateY(-4px); }

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 24px;
  margin-top: 44px;
}
.person-card { text-align: center; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 30px 22px; }
.person-photo {
  width: 128px; height: 128px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 18px;
  display: block;
  border: 3px solid var(--soft-blue);
  background: var(--bg);
  transition: transform 0.35s var(--ease);
}
.card-link:hover .person-photo, .card-link:hover .person-photo-placeholder { transform: scale(1.06); }
.person-photo-placeholder {
  width: 128px; height: 128px;
  border-radius: 50%;
  margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  border: 3px solid var(--soft-blue);
  transition: transform 0.35s var(--ease);
}
.person-card h3 { margin-bottom: 3px; font-size: 1.05rem; }
.person-role { font-family: var(--font-body); font-weight: 500; font-size: 0.8rem; color: var(--blue); }
.person-institution { display: block; font-size: 0.74rem; color: var(--text-soft); margin-top: 4px; }

/* ---------- Person detail page ---------- */
.person-hero {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 44px;
  align-items: start;
  padding: 110px 0 40px;
}
.person-hero .person-photo, .person-hero .person-photo-placeholder { width: 190px; height: 190px; margin: 0; }
.person-hero h1 { font-size: 2rem; margin-bottom: 6px; }
.person-hero .person-role { font-size: 0.92rem; margin-bottom: 18px; display: block; }
@media (max-width: 640px) {
  .person-hero { grid-template-columns: 1fr; text-align: center; padding-top: 100px; }
  .person-hero .person-photo, .person-hero .person-photo-placeholder { margin: 0 auto; }
}

.bio-placeholder {
  border: 1px dashed var(--border);
  background: var(--soft-blue);
  padding: 16px 18px;
  border-radius: 6px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.director-note {
  background: var(--soft-blue);
  border-left: 3px solid var(--blue);
  border-radius: 6px;
  padding: 22px 26px;
  margin-top: 20px;
  font-style: italic;
  color: var(--navy);
}
.director-note .attribution { display: block; margin-top: 10px; font-style: normal; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-soft); }

/* ---------- Publication / grant list items ---------- */
.pub-list { list-style: none; margin: 0; padding: 0; }
.pub-item { display: flex; gap: 16px; padding: 20px 6px; border-bottom: 1px solid var(--border); color: var(--text); border-radius: var(--radius-sm); transition: background 0.25s var(--ease), padding-left 0.25s var(--ease); }
.pub-item:hover { background: var(--bg-alt); padding-left: 14px; }
.pub-item .fp-mark { flex-shrink: 0; width: 8px; height: 8px; background: var(--blue); margin-top: 8px; border-radius: 2px; }
.pub-item .pub-meta { font-family: var(--font-mono); font-size: 0.76rem; color: var(--text-soft); margin-top: 4px; }
.status-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border: 1px solid var(--blue);
  color: var(--blue);
  border-radius: 20px;
  margin-left: 8px;
}

.featured-pub {
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  margin-bottom: 18px;
  background: var(--card);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}
.featured-pub:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.featured-pub .fp-badge { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--blue); display: block; margin-bottom: 8px; }

/* ---------- Project cards ---------- */
.project-list { position: relative; padding-left: 34px; }
.project-list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}
.project-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 30px;
  margin-bottom: 22px;
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.project-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: var(--blue); }
.project-card::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 32px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--card);
  border: 2px solid var(--blue);
}
.project-card h3 { margin-bottom: 8px; }
.project-meta { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-soft); margin-bottom: 12px; }
.project-meta span + span::before { content: " · "; }
@media (max-width: 560px) {
  .project-list { padding-left: 24px; }
  .project-list::before { left: 3px; }
  .project-card::before { left: -21px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  position: relative;
  overflow: hidden;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.88rem;
  padding: 13px 24px;
  border: 1.5px solid var(--navy);
  color: var(--navy);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.btn::after {
  content: "→";
  display: inline-block;
  font-size: 0.95em;
  transition: transform 0.25s var(--ease);
}
.btn:hover::after { transform: translateX(4px); }
.btn:hover { background: var(--navy); color: #fff; text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
.btn-solid { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-solid:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn-ghost-light { border-color: rgba(255,255,255,0.8); color: #fff; }
.btn-ghost-light:hover { background: #fff; color: var(--navy); }
.btn .btn-ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: currentColor;
  opacity: 0.22;
  pointer-events: none;
  animation: btnRipple 0.65s var(--ease);
}
@keyframes btnRipple { to { transform: scale(2.6); opacity: 0; } }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 20px; max-width: 560px; margin-top: 30px; }
label {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--text-soft);
  margin-bottom: 6px;
}
input, textarea, select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
}
input:focus, textarea:focus { border-color: var(--blue); }
textarea { min-height: 130px; resize: vertical; }
.form-note { font-size: 0.85rem; color: var(--text-soft); margin-top: -6px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,0.78); padding: 64px 0 30px; margin-top: 0; font-size: 0.9rem; }
.site-footer a { color: #fff; transition: opacity 0.2s ease; }
.site-footer a:hover { opacity: 0.75; }
.footer-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 40px; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,0.14); }
.footer-grid > div { flex: 1 1 200px; }
.footer-grid > div + div { padding-left: 36px; border-left: 1px solid rgba(255,255,255,0.12); }
.footer-brand { font-family: var(--font-display); color: #fff; font-size: 1.15rem; font-weight: 600; letter-spacing: -0.01em; }
.footer-grid .eyebrow { margin-bottom: 14px; }
.footer-grid p { margin: 0 0 8px; }
.footer-social { display: flex; gap: 14px; margin-top: 18px; }
.footer-social a {
  width: 38px; height: 38px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.footer-social a:hover { background: var(--blue); border-color: var(--blue); text-decoration: none; opacity: 1; transform: translateY(-3px); }
.footer-social svg { width: 16px; height: 16px; fill: #fff; }
.footer-bottom { padding-top: 24px; font-family: var(--font-mono); font-size: 0.74rem; color: rgba(255,255,255,0.55); letter-spacing: 0.02em; }
@media (max-width: 720px) {
  .footer-grid > div + div { padding-left: 0; border-left: none; }
}

/* ---------- Page header (non-home pages) ---------- */
.page-header { padding: 110px 0 40px; }
.page-header p { color: var(--text-soft); max-width: 640px; }
.page-header .lede { max-width: 700px; font-size: 1.05rem; line-height: 1.7; margin-bottom: 0; }

.policy-toc {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin: 40px 0 0;
  padding: 4px;
  background: var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.policy-toc a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--card);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--navy);
  line-height: 1.3;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.policy-toc a:hover { background: var(--soft-blue); color: var(--blue-dark); text-decoration: none; padding-left: 20px; }
.policy-toc-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--blue);
  flex-shrink: 0;
}
@media (max-width: 560px) {
  .policy-toc { grid-template-columns: 1fr; }
}

.policy-byline { font-family: var(--font-body); font-style: italic; font-size: 0.88rem; color: var(--text-soft); margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border); }

.research-area-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 24px;
  text-align: center;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.research-area-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue);
}
.research-area-card .icon-circle {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--bg-alt);
  color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.research-area-card:hover .icon-circle { background: var(--soft-blue); transform: scale(1.08); }
.research-area-card .icon-circle svg { width: 25px; height: 25px; }
.research-area-card h3 { font-size: 1rem; margin: 0; }

/* ---------- Leadership magazine layout ---------- */
.leader-feature {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 56px;
  align-items: center;
  padding: 52px 0;
}
.leader-feature:nth-child(even) { grid-template-columns: 1fr 300px; }
.leader-feature:nth-child(even) .leader-photo { order: 2; }
.leader-feature.leader-feature-reverse { grid-template-columns: 1fr 300px; }
.leader-feature.leader-feature-reverse .leader-photo { order: 2; }
.leader-photo {
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 5;
}
.leader-photo img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s var(--ease); }
.leader-photo:hover img { transform: scale(1.05); }
.leader-info h2 { margin-bottom: 6px; }
.leader-info h2 a { color: inherit; }
.leader-info h2 a:hover { color: var(--blue); text-decoration: none; }
.leader-info p { max-width: 52ch; }
@media (max-width: 760px) {
  .leader-feature, .leader-feature.leader-feature-reverse { grid-template-columns: 1fr; text-align: center; gap: 28px; padding: 36px 0; }
  .leader-feature.leader-feature-reverse .leader-photo { order: 0; }
  .leader-photo { max-width: 240px; margin: 0 auto; }
  .leader-info p { margin-left: auto; margin-right: auto; }
}

/* ---------- Utility ---------- */
.section-alt { background: var(--bg-alt); }
.center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ---------- Homepage feature cards ---------- */
.milestone-card { display: flex; gap: 34px; align-items: center; flex-wrap: wrap; padding: 38px; }
.milestone-card img { width: 190px; height: 190px; border-radius: var(--radius-md); object-fit: cover; flex-shrink: 0; box-shadow: var(--shadow-sm); }
.milestone-card .milestone-body { flex: 1; min-width: 260px; }
.milestone-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.milestone-card p { margin: 0 0 18px; }

.director-card { display: flex; gap: 30px; align-items: center; flex-wrap: wrap; padding: 38px; }
.director-card img { width: 118px; height: 118px; border-radius: 50%; object-fit: cover; border: 3px solid var(--soft-blue); flex-shrink: 0; }
.director-card .director-body { flex: 1; min-width: 220px; }
.director-card h3 { margin-bottom: 4px; }
.director-card p { margin: 0; }

.mini-project-card h3 { font-size: 1.02rem; margin-bottom: 6px; }
.mini-project-card p { font-size: 0.92rem; margin: 0; }

/* ---------- Mission pull-quote band ---------- */
.mission-band { text-align: center; }
.mission-band blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.55;
  letter-spacing: -0.01em;
  max-width: 840px;
  margin: 0 auto 30px;
}
.mission-band blockquote::before { content: "\201C"; }
.mission-band blockquote::after { content: "\201D"; }

@media (max-width: 720px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { border-left: none; border-top: 1px solid var(--border); padding-top: 18px; }
  .stat:nth-child(1), .stat:nth-child(2) { border-top: none; }
  .page-header { padding-top: 100px; }
}