:root {
  --hud-blue: #003a70;
  --hud-blue-light: #0071bc;
  --hud-blue-pale: #e8f0fa;
  --hud-red: #c5282f;
  --hud-gold: #f0ab00;
  --hud-green: #2e8540;
  --hud-gray-dark: #1b1b1b;
  --hud-gray: #565c65;
  --hud-gray-light: #dfe1e2;
  --hud-gray-bg: #f5f6f7;
  --hud-white: #ffffff;
  --cf-teal: #0d6b6b;
  --cf-teal-light: #14a3a3;
  --cf-teal-pale: #e0f5f5;
  --cf-warm: #faf6f0;
  --cf-accent: #e87a3a;
  --ml-purple: #5b21b6;
  --ml-purple-light: #7c3aed;
  --ml-purple-pale: #ede9fe;
  --ml-purple-dark: #3b0764;
  --guardrail-green: #059669;
  --font-main: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1100px;
  --radius: 6px;
  --bg-body: var(--cf-warm);
  --bg-card: var(--hud-white);
  --bg-footer: var(--hud-gray-dark);
  --text-body: var(--hud-gray-dark);
  --text-footer: var(--hud-gray-light);
  --border-card: var(--hud-gray-light);
  --callout-bg: var(--hud-blue-pale);
  --callout-border: var(--hud-blue-light);
}

[data-theme="dark"] {
  --hud-blue: #4a9eff;
  --hud-blue-light: #66b0ff;
  --hud-blue-pale: #1a2744;
  --hud-red: #ff6b6b;
  --hud-gold: #ffc857;
  --hud-green: #4caf50;
  --hud-gray-dark: #e0e0e0;
  --hud-gray: #a0a0a0;
  --hud-gray-light: #404040;
  --hud-gray-bg: #222;
  --hud-white: #1a1a1a;
  --cf-teal: #20b2aa;
  --cf-teal-light: #48d1cc;
  --cf-teal-pale: #0a2a2a;
  --cf-warm: #121212;
  --cf-accent: #ff8c42;
  --ml-purple: #a78bfa;
  --ml-purple-light: #c4b5fd;
  --ml-purple-pale: #1e1338;
  --ml-purple-dark: #8b5cf6;
  --guardrail-green: #34d399;
  --bg-body: #121212;
  --bg-card: #1a1a1a;
  --bg-footer: #0a0a0a;
  --text-body: #e0e0e0;
  --text-footer: #a0a0a0;
  --border-card: #333;
  --callout-bg: #1a2744;
  --callout-border: #4a9eff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font-main);
  color: var(--text-body);
  background: var(--bg-body);
  line-height: 1.6;
  font-size: 16px;
  transition: background .2s, color .2s;
}

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

header {
  background: var(--hud-blue);
  color: var(--hud-white);
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}
header .inner { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
header h1 { font-size: 1.3rem; font-weight: 700; letter-spacing: .02em; }
header h1 span { color: var(--hud-gold); }
header nav { display: flex; gap: .75rem; flex-wrap: wrap; }
header nav a { color: var(--hud-white); font-size: .85rem; padding: .3rem .65rem; border-radius: var(--radius); background: rgba(255,255,255,.12); transition: background .15s; }
header nav a:hover { background: rgba(255,255,255,.25); text-decoration: none; }
header nav a.active { background: var(--hud-gold); color: var(--hud-blue); font-weight: 600; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 2rem 1.5rem 4rem; }

.badge { display: inline-block; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; padding: .2rem .6rem; border-radius: 3px; }
.badge-open { background: var(--hud-green); color: #fff; }
.badge-ongoing { background: var(--hud-blue-light); color: #fff; }
.badge-permanent { background: var(--hud-gold); color: var(--hud-blue); }
.badge-closed { background: var(--hud-gray); color: #fff; }
.badge-yes { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.badge-no { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.badge-maybe { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.badge-section3 { background: var(--cf-teal); color: #fff; }
.badge-section3-target { background: var(--cf-accent); color: #fff; }
.badge-aaai { background: var(--ml-purple); color: #fff; }
.badge-tech { background: var(--cf-teal); color: #fff; }
.badge-civic { background: var(--hud-gold); color: var(--hud-blue); }

.aaai-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--ml-purple);
  color: #fff;
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .4rem 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}
.aaai-badge::before {
  content: "\2605";
  font-size: 1rem;
}

h2 { font-size: 1.6rem; color: var(--hud-blue); margin: 2rem 0 1rem; border-bottom: 3px solid var(--hud-gold); padding-bottom: .4rem; }
h3 { font-size: 1.15rem; color: var(--hud-blue); margin: 1.5rem 0 .5rem; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  transition: box-shadow .15s, background .2s;
}
.card:hover { box-shadow: 0 3px 12px rgba(0,0,0,.1); }
.card h3 { margin-top: 0; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; background: var(--bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
th, td { padding: .65rem 1rem; text-align: left; border-bottom: 1px solid var(--border-card); font-size: .92rem; }
th { background: var(--hud-blue); color: var(--hud-white); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--hud-blue-pale); }

ul, ol { margin: .5rem 0 1rem 1.5rem; }
li { margin-bottom: .35rem; }

.link-list { list-style: none; margin-left: 0; }
.link-list li { padding: .5rem 0; border-bottom: 1px solid var(--hud-gray-light); }
.link-list li:last-child { border-bottom: none; }
.link-list a { font-weight: 600; }
.link-list .desc { display: block; font-size: .85rem; color: var(--hud-gray); margin-top: .15rem; }

.callout {
  background: var(--callout-bg);
  border-left: 4px solid var(--callout-border);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
}
.callout-warn {
  background: #fff8e1;
  border-left-color: var(--hud-gold);
}
.callout-success {
  background: #e8f5e9;
  border-left-color: var(--hud-green);
}
.callout-teal {
  background: var(--cf-teal-pale);
  border-left-color: var(--cf-teal);
}
.callout-ml {
  background: var(--ml-purple-pale);
  border-left-color: var(--ml-purple-light);
}

.btn {
  display: inline-block;
  padding: .6rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  transition: background .15s, transform .1s;
  border: none;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: var(--hud-blue-light); color: #fff; }
.btn-primary:hover { background: var(--hud-blue); color: #fff; }
.btn-gold { background: var(--hud-gold); color: var(--hud-blue); }
.btn-gold:hover { background: #d99a00; }
.btn-outline { background: transparent; border: 2px solid var(--hud-blue-light); color: var(--hud-blue-light); }
.btn-outline:hover { background: var(--hud-blue-light); color: #fff; }
.btn-teal { background: var(--cf-teal); color: #fff; }
.btn-teal:hover { background: #085555; color: #fff; }
.btn-ml { background: var(--ml-purple); color: #fff; }
.btn-ml:hover { background: var(--ml-purple-dark); color: #fff; }
.btn-outline-ml { background: transparent; border: 2px solid var(--ml-purple-light); color: var(--ml-purple-light); }
.btn-outline-ml:hover { background: var(--ml-purple-light); color: #fff; }

footer {
  background: var(--bg-footer);
  color: var(--text-footer);
  text-align: center;
  padding: 1.5rem;
  font-size: .8rem;
  margin-top: 3rem;
}
footer a { color: var(--hud-gold); }

p { margin-bottom: .75rem; }

.steps { counter-reset: step; list-style: none; margin-left: 0; }
.steps li { counter-increment: step; padding: .75rem 0 .75rem 3rem; position: relative; border-left: 2px solid var(--hud-gray-light); margin-left: 1rem; }
.steps li::before { content: counter(step); position: absolute; left: -1rem; top: .65rem; width: 2rem; height: 2rem; border-radius: 50%; background: var(--hud-blue-light); color: #fff; font-weight: 700; font-size: .85rem; display: flex; align-items: center; justify-content: center; }
.steps li:last-child { border-left-color: transparent; }

.foreclosure-meta { font-size: .92rem; color: var(--hud-gray); margin-bottom: 1rem; }
.foreclosure-list { list-style: none; margin: 1rem 0 2rem; padding: 0; background: var(--bg-card); border: 1px solid var(--border-card); border-radius: var(--radius); box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.foreclosure-list li { padding: .75rem 1rem; border-bottom: 1px solid var(--border-card); margin: 0; }
.foreclosure-list li:last-child { border-bottom: none; }
.foreclosure-list li:hover { background: var(--hud-blue-pale); }
.foreclosure-list a { font-weight: 600; }
.foreclosure-list .map-sep { color: var(--hud-gray); margin: 0 .5rem; font-weight: 400; }
.foreclosure-list a[href*="maps.google"] { font-weight: 500; }
.fc-doc {
  display: inline-block;
  margin-left: 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--hud-gray);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.fc-entity {
  display: block;
  font-size: 0.75rem;
  color: var(--hud-gray);
  margin-top: 0.2rem;
  line-height: 1.3;
}
.fc-trustee {
  color: var(--hud-red);
}
.entity-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.entity-tags .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
}

.hero {
  background: linear-gradient(135deg, var(--hud-blue) 0%, #002244 100%);
  color: var(--hud-white);
  padding: 3rem 2rem;
  margin: -2rem -1.5rem 2rem;
  text-align: center;
}
.hero h2 {
  font-size: 2rem;
  color: var(--hud-white);
  border: none;
  margin: 0 0 .5rem;
}
.hero p {
  font-size: 1.15rem;
  max-width: 700px;
  margin: 0 auto 1.5rem;
  opacity: .9;
}
.hero .badge-section3 {
  font-size: .85rem;
  padding: .4rem 1rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.aaai-hero {
  background: linear-gradient(135deg, var(--ml-purple-dark) 0%, var(--ml-purple) 40%, var(--hud-blue) 100%);
}
.aaai-hero h2 { color: #fff; }
.aaai-hero p { opacity: .95; }

.hero-badges {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}
.hero-badges .badge {
  font-size: .85rem;
  padding: .4rem .9rem;
}

.section3-verify {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}
.section3-verify .badge {
  font-size: .85rem;
  padding: .4rem .9rem;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--ml-purple);
  line-height: 1.1;
}
.stat-label {
  font-size: .82rem;
  color: var(--hud-gray);
  margin-top: .25rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  font-weight: 600;
}

.publication-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  border-left: 4px solid var(--ml-purple-light);
}
.publication-card h3 {
  margin-top: 0;
  color: var(--ml-purple-dark);
}
.publication-card .venue {
  font-size: .82rem;
  color: var(--ml-purple);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .03em;
  margin-bottom: .5rem;
}
.publication-card .authors {
  font-size: .88rem;
  color: var(--hud-gray);
  margin-bottom: .5rem;
}
.publication-card .tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: .15rem .5rem;
  border-radius: 3px;
  margin-right: .35rem;
  margin-bottom: .35rem;
}
.tag-guardrail { background: var(--guardrail-green); color: #fff; }
.tag-security { background: var(--hud-red); color: #fff; }
.tag-ml { background: var(--ml-purple); color: #fff; }

.conference-banner {
  background: linear-gradient(135deg, var(--ml-purple) 0%, var(--ml-purple-dark) 100%);
  color: #fff;
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  margin: 2rem 0;
}
.conference-banner h3 { color: #fff; margin: 0 0 .5rem; }
.conference-banner p { opacity: .9; margin: 0 0 1rem; }

.principle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}
.principle-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  transition: box-shadow .15s;
}
.principle-card:hover { box-shadow: 0 3px 12px rgba(0,0,0,.1); }
.principle-card .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--cf-teal);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: .75rem;
}
.principle-card h4 { font-size: .95rem; color: var(--hud-blue); margin-bottom: .4rem; }
.principle-card p { font-size: .85rem; color: var(--hud-gray); margin: 0; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.service-card .icon { font-size: 2.5rem; margin-bottom: .75rem; display: block; }
.service-card h3 { margin-top: 0; font-size: 1.1rem; }
.service-card p { font-size: .92rem; color: var(--hud-gray); margin: 0; }

.section3-banner {
  background: var(--cf-teal);
  color: #fff;
  padding: 2rem;
  border-radius: var(--radius);
  text-align: center;
  margin: 2rem 0;
}
.section3-banner h3 { color: #fff; margin: 0 0 .5rem; }
.section3-banner p { opacity: .9; margin: 0 0 1rem; }

.who-we-are {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.who-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  font-weight: 600;
  color: var(--hud-blue);
  font-size: .95rem;
}

.principle-detailed {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.principle-detailed h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.principle-detailed h3 .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--cf-teal);
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}

.inline-code {
  background: var(--hud-blue-pale);
  padding: .15rem .4rem;
  border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: .85rem;
}

.who-profiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 1.5rem 0;
}
.who-profile {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.who-photo {
  width: 100%;
  max-width: 280px;
  height: auto;
  border-radius: 50%;
  margin: 0 auto 1rem;
  display: block;
  object-fit: cover;
  aspect-ratio: 1/1;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.who-profile h3 { margin: 0 0 .5rem; color: var(--hud-blue); }
.who-profile p { font-size: .92rem; color: var(--hud-gray-dark); text-align: left; line-height: 1.65; }

.glossary-index { text-align: center; font-size: 1.05rem; margin: 1.5rem 0; word-spacing: .3rem; }
.glossary-index a { font-weight: 700; color: var(--cf-teal); }
.subtitle { font-size: .95rem; color: var(--hud-gray); margin: -.5rem 0 0; }
.glossary { margin: 0; }
.glossary dt {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--hud-blue);
  margin: 1.5rem 0 .3rem;
  padding-top: .5rem;
  border-top: 1px solid var(--hud-gray-light);
}
.glossary dd { margin: 0 0 1rem; font-size: .92rem; line-height: 1.6; }
.glossary dd p { margin-bottom: .5rem; }
.glossary dd p:first-child { color: var(--hud-gray); font-style: italic; font-size: .88rem; }
.glossary dd p:last-child { margin-bottom: 0; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: .25rem .5rem;
  line-height: 1;
}
@media (max-width: 700px) {
  .menu-toggle { display: block; }
  header nav { display: none; flex-direction: column; width: 100%; gap: .25rem; }
  header nav.open { display: flex; }
  header .inner { flex-wrap: wrap; }
}

@media print {
  header { display: none; }
  footer { display: none; }
  .btn { display: none; }
  body { color: #000 !important; background: #fff !important; }
  .hero { background: #fff !important; color: #000 !important; padding: 0; margin: 0; }
  .hero h2 { color: #000 !important; }
  .hero p { color: #000 !important; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.85em; color: #555; }
  .container { padding: 0; margin: 0; max-width: none; }
  .breadcrumb { display: none; }
  .theme-toggle { display: none; }
  .print-btn { display: none; }
  .back-to-top { display: none; }
  .glossary-tooltip { display: none !important; }
}

@media (max-width: 450px) {
  .breadcrumb { font-size: .72rem; }
  .breadcrumb li + li::before { padding: 0 .25rem; }
  footer p { font-size: .65rem; }
}

:root {
  --tooltip-bg: var(--hud-gray-dark);
  --tooltip-text: #fff;
}
[data-theme="dark"] {
  --tooltip-bg: #333;
  --tooltip-text: #eee;
}
.glossary-term {
  cursor: help;
  border-bottom: 1px dotted var(--hud-blue-light);
  color: var(--hud-blue-light);
  font-weight: 600;
  position: relative;
}
.glossary-term:hover { border-bottom-color: var(--cf-accent); color: var(--cf-accent); }
.glossary-tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--tooltip-bg);
  color: var(--tooltip-text);
  font-size: .82rem;
  font-weight: 400;
  padding: .5rem .75rem;
  border-radius: var(--radius);
  white-space: normal;
  min-width: 240px;
  max-width: 320px;
  text-align: left;
  line-height: 1.4;
  z-index: 200;
  box-shadow: 0 2px 10px rgba(0,0,0,.3);
  pointer-events: none;
}
.glossary-tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -6px;
  border: 6px solid transparent;
  border-top-color: var(--tooltip-bg);
}
.glossary-term:hover .glossary-tooltip,
.glossary-term:focus .glossary-tooltip { display: block; }

.theme-toggle {
  background: none;
  border: 2px solid rgba(255,255,255,.25);
  color: var(--hud-white);
  font-size: .85rem;
  padding: .3rem .55rem;
  border-radius: var(--radius);
  cursor: pointer;
  line-height: 1;
  transition: background .15s, border-color .15s;
}
.theme-toggle:hover { background: rgba(255,255,255,.15); border-color: var(--hud-gold); }

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  padding: .5rem 0;
  margin: 0;
  font-size: .82rem;
  color: var(--hud-gray);
}
.breadcrumb li { margin: 0; }
.breadcrumb li + li::before {
  content: "\203A";
  padding: 0 .5rem;
  color: var(--hud-gray-light);
}
.breadcrumb a { color: var(--hud-blue-light); }
.breadcrumb [aria-current="page"] { color: var(--hud-gray); font-weight: 600; }

.last-updated {
  font-size: .7rem;
  opacity: .6;
  margin-top: .15rem;
}

.print-btn {
  display: inline-block;
  background: none;
  border: none;
  color: var(--hud-gold);
  font-size: .72rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}
.print-btn:hover { color: #fff; }

@media (max-width: 700px) {
  header .inner { flex-direction: column; align-items: flex-start; }
  .card-grid { grid-template-columns: 1fr; }
  .principle-grid { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .who-we-are { grid-template-columns: 1fr 1fr; }
  .who-profiles { grid-template-columns: 1fr; }
  .who-photo { max-width: 200px; }
  .hero h2 { font-size: 1.5rem; }
  th, td { padding: .5rem .6rem; font-size: .82rem; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
}

#back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: inline-block;
  padding: .5rem 1rem;
  background: var(--hud-blue);
  color: #fff;
  border-radius: var(--radius);
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  z-index: 100;
  transition: opacity .15s;
  opacity: .85;
}
#back-to-top:hover { opacity: 1; color: #fff; }

.skip-link {
  position: absolute;
  top: -1000px;
  left: 0;
  z-index: 1000;
  background: var(--hud-gold);
  color: var(--hud-blue);
  padding: .5rem 1rem;
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus {
  top: 0;
}