:root {
  --bg: #07111f;
  --bg-soft: #0c1830;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --text: #eef4ff;
  --muted: #aab8d0;
  --muted-2: #7d8da8;
  --brand: #55d6ff;
  --brand-2: #8b5cf6;
  --brand-3: #37f2a8;
  --warm: #ffb86b;
  --line: rgba(255, 255, 255, 0.13);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 28px;
  --radius-sm: 18px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(85, 214, 255, 0.22), transparent 32rem),
    radial-gradient(circle at 90% 8%, rgba(139, 92, 246, 0.18), transparent 34rem),
    linear-gradient(180deg, #06101f 0%, #081325 46%, #050914 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  max-width: 100%;
}

::selection {
  background: rgba(85, 214, 255, 0.35);
}

.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  overflow: hidden;
}

.orb {
  position: absolute;
  width: 26rem;
  height: 26rem;
  border-radius: 999px;
  filter: blur(26px);
  opacity: 0.35;
  animation: floatOrb 13s ease-in-out infinite;
}

.orb-a {
  top: 12%;
  left: -12rem;
  background: rgba(85, 214, 255, 0.35);
}

.orb-b {
  right: -12rem;
  top: 34%;
  background: rgba(139, 92, 246, 0.32);
  animation-delay: -4s;
}

.orb-c {
  bottom: -12rem;
  left: 30%;
  background: rgba(55, 242, 168, 0.25);
  animation-delay: -8s;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.85), transparent 82%);
}

@keyframes floatOrb {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(2rem, -1rem, 0) scale(1.08); }
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(5, 10, 21, 0.70);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #04111e;
  background: conic-gradient(from 140deg, var(--brand), var(--brand-3), var(--brand-2), var(--brand));
  box-shadow: 0 12px 30px rgba(85, 214, 255, 0.20);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-title {
  font-size: 1.05rem;
}

.brand-subtitle {
  margin-top: 4px;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  color: var(--muted);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.10);
}

.nav-links a:hover {
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 99px;
  background: currentColor;
}

.hero {
  position: relative;
  padding: 86px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 42px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #d7fbff;
  background: rgba(85, 214, 255, 0.10);
  border: 1px solid rgba(85, 214, 255, 0.22);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: var(--brand-3);
  box-shadow: 0 0 20px rgba(55, 242, 168, 0.8);
}

h1, h2, h3, p {
  margin-top: 0;
}

.hero h1,
.page-hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(2.8rem, 7vw, 6.5rem);
  line-height: 0.94;
  letter-spacing: -0.075em;
}

.gradient-text {
  background: linear-gradient(90deg, var(--brand), #ffffff, var(--brand-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.8;
  max-width: 760px;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #04111e;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  box-shadow: 0 18px 45px rgba(85, 214, 255, 0.18);
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}

.hero-card {
  position: relative;
  background: linear-gradient(145deg, rgba(255,255,255,0.12), rgba(255,255,255,0.05));
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(85,214,255,0.34), transparent 35%, rgba(55,242,168,0.22));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  padding: 1px;
  pointer-events: none;
}

.hero-visual {
  aspect-ratio: 1.05 / 1;
  border-radius: 24px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 30% 20%, rgba(85,214,255,0.25), transparent 28%),
    radial-gradient(circle at 80% 30%, rgba(139,92,246,0.22), transparent 30%),
    rgba(2, 9, 21, 0.62);
  overflow: hidden;
}

.hero-visual img {
  width: 94%;
  filter: drop-shadow(0 26px 60px rgba(0,0,0,0.35));
  animation: floatVisual 6s ease-in-out infinite;
}

@keyframes floatVisual {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.stat {
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 18px;
  background: rgba(255,255,255,0.06);
}

.stat strong {
  display: block;
  font-size: 1.55rem;
  letter-spacing: -0.04em;
}

.stat span {
  color: var(--muted);
  font-size: 0.84rem;
}

.section {
  padding: 80px 0;
}

.section-tight {
  padding: 54px 0;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.section-kicker {
  color: var(--brand);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 900;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.055em;
  margin: 0;
}

.section-copy {
  color: var(--muted);
  line-height: 1.8;
  max-width: 640px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(145deg, rgba(255,255,255,0.10), rgba(255,255,255,0.045));
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 18px 60px rgba(0,0,0,0.18);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(85, 214, 255, 0.34);
  background: linear-gradient(145deg, rgba(255,255,255,0.14), rgba(255,255,255,0.055));
}

.icon-badge {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #06111f;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.card p {
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 0;
}

.split-panel {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
  align-items: stretch;
}

.panel {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 28px;
  background: rgba(255,255,255,0.07);
  box-shadow: 0 18px 60px rgba(0,0,0,0.18);
}

.feature-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  align-items: start;
  color: var(--muted);
  line-height: 1.65;
}

.feature-list span {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #06111f;
  font-weight: 900;
  background: linear-gradient(135deg, var(--warm), var(--brand));
}

.visual-panel {
  min-height: 390px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.visual-panel img {
  width: min(500px, 100%);
}

.cta {
  margin: 70px 0 0;
  padding: 42px;
  border-radius: 34px;
  border: 1px solid rgba(255,255,255,0.14);
  background:
    linear-gradient(135deg, rgba(85,214,255,0.16), rgba(139,92,246,0.16)),
    rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: var(--shadow);
}

.cta h2 {
  font-size: clamp(1.8rem, 4vw, 3.1rem);
  letter-spacing: -0.055em;
  line-height: 1;
  margin-bottom: 12px;
}

.cta p {
  color: var(--muted);
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: 0;
}

.page-hero {
  padding: 76px 0 36px;
}

.page-hero h1 {
  max-width: 900px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 34px;
}

.filter-btn {
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.07);
  color: var(--muted);
  border-radius: 999px;
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
  font-weight: 800;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--text);
  background: rgba(85, 214, 255, 0.14);
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.person-card { 
	position: relative; 
	overflow: hidden; 
	border-radius: var(--radius); 
	border: 1px solid rgba(255,255,255,0.12); 
	background: linear-gradient(145deg, rgba(255,255,255,0.11), rgba(255,255,255,0.045)); 
	box-shadow: 0 18px 60px rgba(0,0,0,0.16); 
	transition: transform 220ms ease, border-color 220ms ease; 
	} 

.person-card:hover { 
	transform: translateY(-7px); 
	border-color: rgba(85, 214, 255, 0.34); 
	} 
	
.person-image { 
	height: 360px; 
	background: radial-gradient(circle at 30% 10%, rgba(85,214,255,0.28), transparent 34%), rgba(255,255,255,0.06); 
	display: grid; place-items: end center; 
	overflow: hidden; 
	} 
	
.person-image img { 
	width: 72%; 
	transform: translateY(8px); 
	object-fit: cover; 
	height: 86%; 
	}

.person-body {
  padding: 22px;
}

.person-body h3 {
  margin-bottom: 6px;
  font-size: 1.25rem;
}

.role {
  color: var(--brand);
  font-weight: 800;
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.bio {
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  color: #d9e6ff;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.07);
  padding: 6px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.publication-list,
.news-list {
  display: grid;
  gap: 16px;
}

.pub-card,
.news-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  background: rgba(255,255,255,0.07);
  padding: 22px;
  transition: transform 200ms ease, border-color 200ms ease, background 200ms ease;
}

.pub-card:hover,
.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(85, 214, 255, 0.32);
  background: rgba(255,255,255,0.10);
}

.year-badge,
.date-badge {
  min-width: 76px;
  height: 76px;
  border-radius: 22px;
  display: grid;
  place-items: center;
  text-align: center;
  font-weight: 900;
  color: #06111f;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
}

.date-badge {
  line-height: 1.05;
}

.date-badge span {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pub-meta,
.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted-2);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.pub-card h3,
.news-card h3 {
  font-size: 1.2rem;
  letter-spacing: -0.025em;
  margin-bottom: 10px;
}

.pub-card p,
.news-card p {
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.text-link {
  color: #d9fbff;
  font-weight: 850;
}

.text-link:hover {
  color: var(--brand-3);
}

.news-feature-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  margin-bottom: 20px;
}

.news-feature {
  min-height: 360px;
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.13);
  background:
    linear-gradient(135deg, rgba(85,214,255,0.18), rgba(139,92,246,0.15)),
    url('assets/research-graph.svg') center right / 58% no-repeat,
    rgba(255,255,255,0.07);
  display: flex;
  align-items: end;
  box-shadow: var(--shadow);
}

.news-feature h2 {
  max-width: 620px;
  font-size: clamp(1.8rem, 4vw, 3.1rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
  margin-bottom: 12px;
}

.news-side {
  display: grid;
  gap: 20px;
}

.footer {
  padding: 54px 0;
  border-top: 1px solid rgba(255,255,255,0.09);
  background: rgba(3, 8, 18, 0.52);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
}

.footer p {
  color: var(--muted);
  line-height: 1.7;
  margin: 12px 0 0;
  max-width: 620px;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: end;
}

.footer-links a {
  color: var(--muted);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  padding: 9px 12px;
  border-radius: 999px;
}

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

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 920px) {
  .hero-grid,
  .split-panel,
  .news-feature-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .people-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-header,
  .cta {
    align-items: start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: start;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, var(--max));
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-links {
    position: absolute;
    top: 78px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 22px;
    background: rgba(5, 10, 21, 0.94);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 13px 14px;
  }

  .hero {
    padding-top: 54px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.4rem, 15vw, 4rem);
  }

  .stats-row,
  .card-grid,
  .people-grid {
    grid-template-columns: 1fr;
  }

  .pub-card,
  .news-card {
    grid-template-columns: 1fr;
  }

  .year-badge,
  .date-badge {
    width: 76px;
  }

  .person-image {
    height: 330px;
  }
}


/* --------------------------------------------------------------------------
   Iowa State / FIRE Lab theme update
   Uses Iowa State cardinal (#C8102E) and gold (#F1BE48) as the visual system.
   -------------------------------------------------------------------------- */
:root {
  --bg: #170408;
  --bg-soft: #2a0710;
  --panel: rgba(255, 248, 231, 0.09);
  --panel-strong: rgba(255, 248, 231, 0.15);
  --text: #fff8e7;
  --muted: #eadfca;
  --muted-2: #cab894;
  --brand: #C8102E;
  --brand-2: #F1BE48;
  --brand-3: #fff1b5;
  --warm: #B9975B;
  --line: rgba(241, 190, 72, 0.18);
  --shadow: 0 24px 90px rgba(67, 0, 12, 0.38);
}

body {
  background:
    radial-gradient(circle at 12% 2%, rgba(241, 190, 72, 0.32), transparent 30rem),
    radial-gradient(circle at 88% 8%, rgba(200, 16, 46, 0.36), transparent 34rem),
    radial-gradient(circle at 50% 98%, rgba(124, 37, 41, 0.35), transparent 32rem),
    linear-gradient(180deg, #24060d 0%, #150408 44%, #0b0204 100%);
}

::selection {
  background: rgba(241, 190, 72, 0.36);
}

.orb-a { background: rgba(241, 190, 72, 0.42); }
.orb-b { background: rgba(200, 16, 46, 0.42); }
.orb-c { background: rgba(124, 37, 41, 0.36); }

.grid-overlay {
  background-image:
    linear-gradient(rgba(241,190,72,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(241,190,72,0.055) 1px, transparent 1px);
}

.isu-ribbon {
  position: relative;
  z-index: 60;
  background: linear-gradient(90deg, #C8102E, #7C2529 58%, #F1BE48);
  color: #fff8e7;
  font-size: .78rem;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 8px 0;
  box-shadow: 0 10px 30px rgba(124, 37, 41, .18);
}

.navbar {
  background: rgba(22, 4, 9, 0.78);
  border-bottom: 1px solid rgba(241,190,72,.18);
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  object-fit: contain;
  box-shadow: 0 12px 34px rgba(200, 16, 46, 0.28);
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.brand:hover .brand-logo {
  transform: rotate(-3deg) scale(1.035);
  box-shadow: 0 16px 38px rgba(241, 190, 72, 0.24);
}

.brand-mark { display: none; }
.brand-title { color: #fff8e7; }
.brand-subtitle { color: #F1BE48; }

.nav-links a:hover,
.nav-links a.active {
  color: #fff8e7;
  background: rgba(241,190,72,0.13);
  box-shadow: inset 0 0 0 1px rgba(241,190,72,.12);
}

.eyebrow {
  color: #fff8e7;
  background: rgba(200, 16, 46, 0.28);
  border-color: rgba(241, 190, 72, 0.42);
  box-shadow: 0 10px 34px rgba(124, 37, 41, 0.20);
}

.eyebrow::before {
  background: #F1BE48;
  box-shadow: 0 0 22px rgba(241, 190, 72, .95);
}

.hero h1,
.page-hero h1,
.section-title,
.news-feature h2 {
  text-wrap: balance;
}

.hero h1::after,
.page-hero h1::after {
  content: "";
  display: block;
  width: 118px;
  height: 8px;
  margin-top: 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, #C8102E, #F1BE48);
  box-shadow: 0 10px 30px rgba(241, 190, 72, .2);
}

.lead,
.section-copy,
.card p,
.pub-card p,
.news-card p,
.footer p {
  color: #eadfca;
}

.btn-primary {
  color: #260307;
  background: linear-gradient(135deg, #F1BE48, #fff1b5 54%, #F1BE48);
  border-color: rgba(255, 248, 231, .36);
  box-shadow: 0 16px 40px rgba(241,190,72,.24);
}

.btn-primary:hover {
  box-shadow: 0 20px 48px rgba(241,190,72,.32);
}

.btn-ghost,
.filter-btn,
.footer-links a {
  background: rgba(255, 248, 231, .07);
  border-color: rgba(241, 190, 72, .18);
}

.card,
.panel,
.pub-card,
.news-card,
.person-card,
.hero-card,
.cta,
.news-feature {
  border-color: rgba(241, 190, 72, .18);
  background:
    linear-gradient(145deg, rgba(255,248,231,.105), rgba(255,248,231,.045)),
    rgba(124,37,41,.10);
}

.hero-card::before,
.panel::before,
.card::before,
.cta::before {
  background: radial-gradient(circle, rgba(241,190,72,.18), transparent 62%);
}

.hero-visual {
  background: linear-gradient(135deg, rgba(200,16,46,.14), rgba(241,190,72,.12));
  border-color: rgba(241,190,72,.18);
}

.stat strong,
.section-kicker,
.pub-meta,
.text-link,
.news-card time {
  color: #F1BE48;
}

.text-link:hover { color: #fff1b5; }

.icon-badge,
.year-badge,
.date-badge {
  color: #260307;
  background: linear-gradient(135deg, #F1BE48, #fff1b5);
  box-shadow: 0 16px 32px rgba(241,190,72,.18);
}

.feature-list li span {
  color: #260307;
  background: #F1BE48;
}

.news-feature {
  background:
    linear-gradient(135deg, rgba(200,16,46,0.62), rgba(124,37,41,0.32)),
    url('assets/isu-research-graph.svg') center right / 58% no-repeat,
    rgba(255,248,231,0.07);
}

.footer {
  background: linear-gradient(180deg, rgba(22,4,9,.62), rgba(8,1,4,.9));
  border-top-color: rgba(241,190,72,.14);
}

.nav-toggle {
  border-color: rgba(241,190,72,.25);
  background: rgba(255,248,231,.08);
}

@media (max-width: 720px) {
  .isu-ribbon { font-size: .66rem; letter-spacing: .04em; }
  .brand-logo { width: 46px; height: 46px; border-radius: 16px; }
  .nav-links { background: rgba(22, 4, 9, .96); border-color: rgba(241,190,72,.2); }
}

/* --------------------------------------------------------------------------
   Light Iowa State refresh
   Lighter page backgrounds while preserving Iowa State cardinal/gold accents.
   -------------------------------------------------------------------------- */
:root {
  --bg: #fcfaf6;
  --bg-soft: #f6f1e8;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-strong: rgba(255, 255, 255, 0.98);
  --text: #3d1620;
  --muted: #6d5560;
  --muted-2: #8f7780;
  --brand: #C8102E;
  --brand-2: #F1BE48;
  --brand-3: #F8D987;
  --warm: #B9975B;
  --line: rgba(124, 37, 41, 0.12);
  --shadow: 0 18px 54px rgba(61, 22, 32, 0.10);
}

body {
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0%, rgba(241, 190, 72, 0.20), transparent 28rem),
    radial-gradient(circle at 92% 6%, rgba(200, 16, 46, 0.12), transparent 30rem),
    linear-gradient(180deg, #fffdfa 0%, #fbf7f0 42%, #f7f1e8 100%);
}

::selection {
  background: rgba(200, 16, 46, 0.18);
  color: #3d1620;
}

.orb {
  opacity: 0.20;
}

.orb-a { background: rgba(241, 190, 72, 0.32); }
.orb-b { background: rgba(200, 16, 46, 0.20); }
.orb-c { background: rgba(185, 151, 91, 0.18); }

.grid-overlay {
  background-image:
    linear-gradient(rgba(124,37,41,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,37,41,0.03) 1px, transparent 1px);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.55), transparent 88%);
}

.isu-ribbon {
  color: #fff;
  box-shadow: 0 10px 26px rgba(124, 37, 41, 0.12);
}

.navbar {
  background: rgba(255, 253, 250, 0.84);
  border-bottom: 1px solid rgba(124, 37, 41, 0.10);
  box-shadow: 0 8px 24px rgba(61, 22, 32, 0.05);
}

.brand-title {
  color: #7C2529;
}

.brand-subtitle {
  color: #A2343E;
}

.nav-links a {
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a.active {
  color: #7C2529;
  background: rgba(200, 16, 46, 0.08);
  box-shadow: inset 0 0 0 1px rgba(200, 16, 46, 0.08);
}

.eyebrow {
  color: #7C2529;
  background: rgba(241, 190, 72, 0.18);
  border-color: rgba(200, 16, 46, 0.14);
  box-shadow: 0 8px 22px rgba(185, 151, 91, 0.10);
}

.eyebrow::before {
  background: #C8102E;
  box-shadow: 0 0 16px rgba(200, 16, 46, 0.32);
}

.gradient-text {
  background: linear-gradient(90deg, #7C2529, #C8102E, #B9975B);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead,
.section-copy,
.card p,
.pub-card p,
.news-card p,
.footer p,
.bio,
.stat span,
.pub-meta,
.news-meta {
  color: var(--muted);
}

.btn {
  border-color: rgba(124, 37, 41, 0.10);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #C8102E, #A10F26);
  box-shadow: 0 14px 34px rgba(200, 16, 46, 0.16);
}

.btn-primary:hover {
  box-shadow: 0 18px 40px rgba(200, 16, 46, 0.22);
}

.btn-ghost {
  color: #7C2529;
  background: rgba(255, 255, 255, 0.80);
}

.btn-ghost:hover {
  background: rgba(241, 190, 72, 0.14);
}

.hero-card,
.card,
.panel,
.pub-card,
.news-card,
.person-card,
.cta {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(124, 37, 41, 0.10);
  box-shadow: var(--shadow);
}

.hero-card::after {
  background: linear-gradient(135deg, rgba(200,16,46,0.24), transparent 35%, rgba(241,190,72,0.26));
}

.hero-visual {
  background:
    radial-gradient(circle at 30% 20%, rgba(241,190,72,0.20), transparent 28%),
    radial-gradient(circle at 80% 30%, rgba(200,16,46,0.12), transparent 30%),
    rgba(252, 248, 242, 0.96);
}

.hero-visual img {
  filter: drop-shadow(0 20px 40px rgba(61, 22, 32, 0.12));
}

.stat {
  background: rgba(252, 248, 242, 0.95);
  border-color: rgba(124, 37, 41, 0.08);
}

.section-kicker,
.role,
.text-link,
.stat strong {
  color: #C8102E;
}

.text-link:hover {
  color: #7C2529;
}

.icon-badge,
.year-badge,
.date-badge,
.feature-list span {
  color: #4a131d;
  background: linear-gradient(135deg, #F1BE48, #F8D987);
  box-shadow: 0 12px 28px rgba(241, 190, 72, 0.18);
}

.filter-btn,
.footer-links a,
.tag {
  background: rgba(255, 255, 255, 0.80);
  border-color: rgba(124, 37, 41, 0.10);
  color: var(--muted);
}

.filter-btn:hover,
.filter-btn.active {
  color: #7C2529;
  background: rgba(241, 190, 72, 0.18);
}

.person-image {
  background: radial-gradient(circle at 30% 10%, rgba(241,190,72,0.20), transparent 34%), rgba(248, 244, 237, 0.96);
}

.news-feature {
  border: 1px solid rgba(124, 37, 41, 0.10);
  background:
    linear-gradient(135deg, rgba(255,255,255,0.92), rgba(249,244,235,0.90)),
    url('assets/isu-research-graph.svg') center right / 58% no-repeat,
    #fff;
}

.news-feature h2,
.section-title,
.hero h1,
.page-hero h1,
.card h3,
.pub-card h3,
.news-card h3,
.person-body h3,
.cta h2 {
  color: #3d1620;
}

.footer {
  background: rgba(255, 252, 248, 0.92);
  border-top: 1px solid rgba(124, 37, 41, 0.10);
}

.footer-links a:hover {
  color: #7C2529;
  background: rgba(241, 190, 72, 0.16);
}

.nav-toggle {
  border-color: rgba(124, 37, 41, 0.12);
  background: rgba(255,255,255,0.86);
  color: #7C2529;
}

@media (max-width: 720px) {
  .nav-links {
    background: rgba(255, 252, 248, 0.98);
    border-color: rgba(124, 37, 41, 0.10);
  }
}

/* FIRE Lab logo integration */
.brand-logo {
  width: 58px;
  height: 58px;
  border-radius: 0;
  object-fit: contain;
  box-shadow: none;
  background: transparent;
}

.brand:hover .brand-logo {
  transform: translateY(-1px) scale(1.035);
  box-shadow: none;
}

.hero-logo-img {
  width: min(520px, 94%);
  max-height: 520px;
  object-fit: contain;
  filter: drop-shadow(0 22px 44px rgba(61, 22, 32, 0.18));
}

.footer .brand-logo {
  width: 64px;
  height: 64px;
}

@media (max-width: 720px) {
  .brand-logo {
    width: 50px;
    height: 50px;
  }
}

/* Reduce gap between publications page title and year buttons */
.publications-page .page-hero {
  padding-bottom: 12px;
}

.publications-page .section-tight {
  padding-top: 18px;
}

.publications-page .publication-year-filter {
  margin-top: 0;
}

/* B2-style Research Areas section */

.research-b2-section {
  padding-top: 70px;
}

.research-b2-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 42px;
}

.research-b2-header .section-kicker {
  justify-content: center;
  color: #C8102E;
}

.research-b2-header .section-title {
  margin-bottom: 14px;
}

.research-b2-header .section-copy {
  margin: 0 auto;
}

.research-b2-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.research-b2-card {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 18px;
  align-items: start;
  padding: 28px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(124, 37, 41, 0.10);
  box-shadow: 0 18px 54px rgba(61, 22, 32, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.research-b2-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200, 16, 46, 0.20);
  box-shadow: 0 24px 70px rgba(61, 22, 32, 0.13);
}

.research-b2-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: linear-gradient(135deg, #C8102E, #8A1024);
  box-shadow: 0 14px 32px rgba(200, 16, 46, 0.18);
}

.research-b2-card:nth-child(2) .research-b2-icon,
.research-b2-card:nth-child(5) .research-b2-icon {
  background: linear-gradient(135deg, #F28C28, #C8102E);
}

.research-b2-card:nth-child(3) .research-b2-icon,
.research-b2-card:nth-child(6) .research-b2-icon {
  background: linear-gradient(135deg, #F1BE48, #C98A12);
  color: #3d1620;
}

.research-b2-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.research-b2-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: #3d1620;
  letter-spacing: -0.02em;
}

.research-b2-card p {
  margin: 0;
  color: #6d5560;
  line-height: 1.65;
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .research-b2-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .research-b2-grid {
    grid-template-columns: 1fr;
  }

  .research-b2-card {
    grid-template-columns: 56px 1fr;
    padding: 22px;
  }

  .research-b2-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
  }
}

.person-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.person-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 800;
  color: #7C2529;
  background: rgba(241, 190, 72, 0.18);
  border: 1px solid rgba(124, 37, 41, 0.12);
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.person-link:hover {
  transform: translateY(-2px);
  color: #ffffff;
  background: #C8102E;
}

.contact-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: 100%;
  max-width: none;
  gap: 20px;
}

.contact-card-grid .card {
  width: 100%;
  height: 100%;
}

@media (max-width: 720px) {
  .contact-card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .contact-card-grid {
    grid-template-columns: 1fr;
  }
}

/* News-page hero with logo */

.news-page-hero {
  padding: 60px 0 42px;
}

.news-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.75fr);
  align-items: center;
  gap: 55px;
}

.news-hero-content {
  max-width: 760px;
}

.news-hero-content h1 {
  margin-bottom: 22px;
}

.news-hero-logo-wrap {
  position: relative;
  min-height: 370px;
  display: flex;
  align-items: center;
  justify-content: center;
  isolation: isolate;
}

.news-hero-logo-wrap::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background:
    radial-gradient(
      circle,
      rgba(241, 190, 72, 0.22) 0%,
      rgba(200, 16, 46, 0.08) 48%,
      transparent 72%
    );
  z-index: -1;
}

.news-hero-logo {
  display: block;
  width: min(400px, 100%);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 24px 45px rgba(61, 22, 32, 0.18));
  animation: newsLogoFloat 5.5s ease-in-out infinite;
}

@keyframes newsLogoFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@media (max-width: 900px) {
  .news-hero-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .news-hero-logo-wrap {
    min-height: 290px;
  }

  .news-hero-logo {
    width: min(330px, 82%);
  }
}

@media (max-width: 600px) {
  .news-page-hero {
    padding-top: 42px;
  }

  .news-hero-logo-wrap {
    min-height: 240px;
  }

  .news-hero-logo {
    width: min(280px, 88%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .news-hero-logo {
    animation: none;
  }
}