:root {
  --burgundy-950: #26040d;
  --burgundy-900: #3a0714;
  --burgundy-800: #5d1024;
  --burgundy-650: #8f1835;
  --gold-500: #f4c542;
  --gold-300: #ffe38a;
  --gold-100: #fff4c9;
  --ink: #211014;
  --paper: #fffaf0;
  --paper-strong: #fffdf8;
  --cool: #e6f2f0;
  --muted: #74565f;
  --line: rgba(93, 16, 36, 0.18);
  --shadow: 0 26px 80px rgba(38, 4, 13, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(93, 16, 36, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(93, 16, 36, 0.05) 1px, transparent 1px),
    radial-gradient(circle at 14% 10%, rgba(244, 197, 66, 0.34), transparent 24rem),
    radial-gradient(circle at 90% 4%, rgba(93, 16, 36, 0.14), transparent 28rem),
    var(--paper);
  background-size: 48px 48px, 48px 48px, auto, auto, auto;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

@keyframes particleDrift {
  from {
    background-position: 0 0, 0 0, 0 0, 28px 36px, 16px 22px;
  }
  to {
    background-position: 0 0, 0 0, 74px 74px, 146px 154px, 62px 68px;
  }
}

button,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.75rem;
  padding: 0.75rem clamp(1rem, 4vw, 3rem);
  color: white;
  background: rgba(38, 4, 13, 0.9);
  border-bottom: 1px solid rgba(244, 197, 66, 0.32);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  color: white;
  text-decoration: none;
}

.brand-symbol {
  position: relative;
  display: block;
  width: 3rem;
  height: 3rem;
  border: 1px solid rgba(244, 197, 66, 0.45);
  border-radius: 0.6rem;
  background:
    radial-gradient(circle at 30% 32%, var(--gold-500) 0 0.46rem, transparent 0.48rem),
    radial-gradient(circle at 70% 30%, var(--gold-300) 0 0.22rem, transparent 0.24rem),
    radial-gradient(circle at 72% 72%, var(--gold-500) 0 0.33rem, transparent 0.35rem),
    linear-gradient(135deg, var(--burgundy-650), var(--burgundy-950));
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.24);
}

.brand-symbol span {
  position: absolute;
  height: 1px;
  background: rgba(255, 227, 138, 0.75);
  transform-origin: left center;
}

.brand-symbol span:nth-child(1) {
  width: 1.2rem;
  left: 0.95rem;
  top: 1rem;
  rotate: 16deg;
}

.brand-symbol span:nth-child(2) {
  width: 1rem;
  left: 1.8rem;
  top: 1.05rem;
  rotate: 92deg;
}

.brand-symbol span:nth-child(3) {
  width: 1.05rem;
  left: 1.8rem;
  top: 2.1rem;
  rotate: -148deg;
}

.brand-symbol span:nth-child(4) {
  width: 1.25rem;
  left: 0.92rem;
  top: 1rem;
  rotate: 75deg;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.brand small {
  color: rgba(255, 244, 201, 0.74);
  font-size: 0.76rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav a {
  color: rgba(255, 250, 240, 0.86);
  padding: 0.58rem 0.82rem;
  border-radius: 999px;
  text-decoration: none;
}

.nav a:hover {
  color: var(--burgundy-950);
  background: var(--gold-500);
}

main {
  overflow: hidden;
}

.hero {
  position: relative;
  min-height: calc(100svh - 4.75rem);
  isolation: isolate;
  color: white;
  background:
    linear-gradient(125deg, rgba(38, 4, 13, 0.98), rgba(93, 16, 36, 0.9) 48%, rgba(244, 197, 66, 0.18)),
    var(--burgundy-950);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 20%, rgba(244, 197, 66, 0.15), transparent 22rem),
    radial-gradient(circle at 82% 34%, rgba(244, 197, 66, 0.12), transparent 20rem),
    radial-gradient(circle, rgba(255, 244, 201, 0.42) 0 1px, transparent 1.7px) 0 0 / 74px 74px,
    radial-gradient(circle, rgba(244, 197, 66, 0.32) 0 1.25px, transparent 1.9px) 28px 36px / 118px 118px,
    radial-gradient(circle, rgba(255, 250, 240, 0.26) 0 0.8px, transparent 1.5px) 16px 22px / 46px 46px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.72;
  animation: particleDrift 18s linear infinite;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 9rem;
  background: linear-gradient(transparent, var(--paper));
  pointer-events: none;
  z-index: 0;
}

.hero-canvas {
  position: absolute;
  left: -18%;
  top: -14%;
  width: 136%;
  height: 128%;
  display: block;
  opacity: 0.95;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(28rem, 0.68fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
  width: min(1220px, calc(100% - 2rem));
  min-height: calc(100svh - 4.75rem);
  margin: 0 auto;
  padding: clamp(2.8rem, 6vw, 4.5rem) 0 clamp(4rem, 7vw, 6rem);
}

.journal-tag,
.micro-label {
  margin: 0 0 0.65rem;
  color: var(--gold-500);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.hero-copy h1 {
  max-width: 11.8ch;
  margin: 0;
  color: white;
  font-size: clamp(3rem, 7.2vw, 6.2rem);
  line-height: 0.9;
  letter-spacing: 0;
  overflow-wrap: anywhere;
  text-shadow: 0 20px 70px rgba(0, 0, 0, 0.32);
}

.hero-copy p:not(.journal-tag) {
  max-width: 45rem;
  color: rgba(255, 250, 240, 0.82);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button,
.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.1rem;
  border-radius: 0.55rem;
  font-weight: 850;
  text-decoration: none;
}

.button.primary,
.primary-action {
  color: var(--burgundy-950);
  border: 0;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  box-shadow: 0 18px 44px rgba(244, 197, 66, 0.18);
}

.button.secondary {
  color: white;
  border: 1px solid rgba(255, 227, 138, 0.38);
  background: rgba(255, 255, 255, 0.08);
}

.hero-side {
  display: grid;
  gap: 1rem;
  align-self: center;
}

.neuro-visual {
  position: relative;
  overflow: visible;
  min-height: 36.4rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.neuro-visual::before {
  content: none;
}

.panel-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.filter-chip,
.segmented button,
.tool-option {
  color: var(--burgundy-800);
  border: 1px solid rgba(93, 16, 36, 0.22);
  border-radius: 999px;
  background: var(--paper-strong);
}

.filter-chip.active,
.segmented button.active,
.tool-option.active {
  color: var(--burgundy-950);
  border-color: transparent;
  background: var(--gold-500);
  font-weight: 900;
}

.paper-station,
.pathway-section,
.atlas-section,
.diagnostic-section,
.simulator-section {
  width: min(1220px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}

.section-title {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(18rem, 0.55fr);
  gap: 1.4rem;
  align-items: end;
  margin-bottom: 1.4rem;
}

.section-title.compact {
  display: block;
  max-width: 58rem;
}

.section-title h2 {
  margin: 0;
  color: var(--burgundy-950);
  font-size: clamp(2.1rem, 5vw, 4.7rem);
  line-height: 0.95;
}

.section-title p:last-child {
  margin: 0;
  color: var(--muted);
}

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

.paper-panel,
.mechanism-stage,
.pathway-track,
.atlas-card,
.atlas-toolbar,
.case-list,
.case-workbench,
.diagnostic-card {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: rgba(255, 253, 248, 0.88);
  box-shadow: 0 18px 56px rgba(38, 4, 13, 0.1);
  backdrop-filter: blur(16px);
}

.paper-panel {
  min-height: 20rem;
  padding: 1.2rem;
}

.paper-panel.accent {
  color: white;
  background:
    radial-gradient(circle at top right, rgba(244, 197, 66, 0.34), transparent 13rem),
    linear-gradient(135deg, var(--burgundy-800), var(--burgundy-950));
}

.panel-topline {
  color: var(--burgundy-650);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.paper-panel.accent .panel-topline {
  color: var(--gold-300);
}

.panel-topline span {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 50%;
  background: var(--gold-500);
  color: var(--burgundy-950);
}

.paper-panel h3 {
  margin: 3rem 0 0.8rem;
  color: var(--burgundy-950);
  font-size: 1.85rem;
  line-height: 1.05;
}

.paper-panel.accent h3 {
  color: white;
}

.paper-panel p {
  color: var(--muted);
}

.paper-panel.accent p {
  color: rgba(255, 250, 240, 0.82);
}

.comparison-table {
  display: grid;
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: rgba(255, 253, 248, 0.9);
  box-shadow: 0 18px 56px rgba(38, 4, 13, 0.1);
  backdrop-filter: blur(16px);
}

.comparison-table > div {
  display: grid;
  grid-template-columns: minmax(9rem, 0.42fr) minmax(0, 1fr) minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.comparison-table > div:first-child {
  border-top: 0;
}

.comparison-table span {
  padding: 0.95rem;
  border-left: 1px solid var(--line);
}

.comparison-table span:first-child {
  border-left: 0;
  color: var(--burgundy-950);
  font-weight: 900;
}

.comparison-head {
  color: var(--burgundy-950);
  background: linear-gradient(135deg, var(--gold-500), var(--gold-100));
  font-weight: 950;
}

.pathway-layout {
  display: grid;
  grid-template-columns: minmax(16rem, 0.44fr) minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1.4rem;
}

.pathway-track {
  display: grid;
  gap: 0.55rem;
  align-content: start;
  padding: 0.75rem;
}

.path-step {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.8rem;
  align-items: center;
  width: 100%;
  min-height: 4rem;
  padding: 0.7rem;
  color: var(--burgundy-800);
  text-align: left;
  border: 1px solid transparent;
  border-radius: 0.55rem;
  background: transparent;
}

.path-step span {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  color: var(--burgundy-950);
  border-radius: 50%;
  background: var(--gold-500);
  font-size: 0.76rem;
  font-weight: 950;
}

.path-step:hover,
.path-step.active {
  background: var(--paper-strong);
  border-color: rgba(93, 16, 36, 0.2);
  transform: translateX(0.2rem);
}

.mechanism-stage {
  position: relative;
  min-height: 36rem;
  overflow: hidden;
  padding: clamp(1.3rem, 4vw, 2.4rem);
  color: white;
  background:
    radial-gradient(circle at 82% 78%, rgba(244, 197, 66, 0.24), transparent 17rem),
    linear-gradient(135deg, var(--burgundy-800), var(--burgundy-950));
}

.mechanism-stage h3,
.atlas-card h3,
.case-workbench h3 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  line-height: 1.02;
}

.mechanism-stage p:not(.micro-label) {
  max-width: 44rem;
  color: rgba(255, 250, 240, 0.82);
}

#pathway-points {
  display: grid;
  gap: 0.72rem;
  max-width: 45rem;
  padding: 0;
  margin: 1.5rem 0 0;
  list-style: none;
}

#pathway-points li {
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(255, 227, 138, 0.26);
  border-radius: 0.55rem;
  background: rgba(255, 255, 255, 0.08);
}

.stage-orbit {
  position: absolute;
  right: -5rem;
  bottom: -5rem;
  width: 25rem;
  height: 25rem;
  opacity: 0.65;
}

.stage-orbit span {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(255, 227, 138, 0.35);
  border-radius: 50%;
}

.stage-orbit span:nth-child(2) {
  inset: 28%;
}

.stage-orbit span:nth-child(3) {
  inset: 44%;
  background: var(--gold-500);
}

.atlas-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.38fr);
  gap: 1rem;
}

.atlas-toolbar {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0.75rem;
  box-shadow: none;
}

.filter-chip {
  padding: 0.58rem 0.88rem;
}

.knowledge-map {
  width: 100%;
  min-height: 35rem;
  border: 1px solid rgba(244, 197, 66, 0.22);
  border-radius: 0.75rem;
  background:
    radial-gradient(circle at center, rgba(244, 197, 66, 0.2), transparent 18rem),
    linear-gradient(135deg, rgba(38, 4, 13, 0.96), rgba(93, 16, 36, 0.9));
  box-shadow: var(--shadow);
}

.graph-line {
  stroke: rgba(255, 227, 138, 0.28);
  stroke-width: 2.2;
}

.graph-node {
  cursor: pointer;
}

.graph-node circle {
  fill: rgba(255, 250, 240, 0.94);
  stroke: var(--gold-500);
  stroke-width: 3;
  filter: url("#nodeGlow");
}

.graph-node text {
  fill: var(--burgundy-950);
  font-size: 15px;
  font-weight: 900;
  pointer-events: none;
}

.graph-node.active circle,
.graph-node:hover circle {
  fill: var(--gold-500);
  stroke: white;
  stroke-width: 4;
}

.graph-node.dimmed,
.graph-line.dimmed {
  opacity: 0.18;
}

.atlas-card {
  align-self: stretch;
  padding: 1.2rem;
}

.atlas-card p:not(.micro-label),
.case-workbench p,
.feedback {
  color: var(--muted);
}

.map-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.map-links span {
  padding: 0.45rem 0.6rem;
  color: var(--burgundy-950);
  border-radius: 999px;
  background: var(--gold-100);
  font-size: 0.84rem;
  font-weight: 850;
}

.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
}

.diagnostic-card {
  position: relative;
  overflow: hidden;
  min-height: 17rem;
  padding: 1rem;
}

.diagnostic-card::after {
  content: "";
  position: absolute;
  inset: auto -2rem -4rem auto;
  width: 9rem;
  height: 9rem;
  border-radius: 50%;
  background: rgba(244, 197, 66, 0.18);
}

.diagnostic-card strong {
  display: block;
  color: var(--burgundy-950);
  font-size: 1.25rem;
  line-height: 1.12;
}

.diagnostic-card p {
  color: var(--muted);
}

.diagnostic-card dl {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
}

.diagnostic-card div {
  position: relative;
  z-index: 1;
}

.diagnostic-card dt {
  color: var(--burgundy-650);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.diagnostic-card dd {
  margin: 0;
  color: var(--ink);
}

.simulator-grid {
  display: grid;
  grid-template-columns: minmax(15rem, 0.42fr) minmax(0, 1fr);
  gap: 1rem;
}

.case-list {
  display: grid;
  gap: 0.6rem;
  align-content: start;
  padding: 0.75rem;
}

.case-card {
  width: 100%;
  padding: 1rem;
  color: var(--ink);
  text-align: left;
  border: 1px solid transparent;
  border-radius: 0.55rem;
  background: var(--paper-strong);
}

.case-card:hover,
.case-card.active {
  border-color: rgba(93, 16, 36, 0.22);
  transform: translateY(-0.1rem);
}

.case-card strong,
.case-card span {
  display: block;
}

.case-card span {
  color: var(--muted);
  font-size: 0.88rem;
}

.case-workbench {
  padding: clamp(1rem, 3vw, 1.5rem);
}

.choice-block {
  margin-top: 1.35rem;
}

.choice-block h4 {
  margin: 0 0 0.7rem;
  color: var(--burgundy-950);
}

.segmented,
.tool-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.segmented button,
.tool-option {
  padding: 0.68rem 0.9rem;
}

.tool-option {
  border-radius: 0.55rem;
}

.primary-action {
  margin-top: 1.35rem;
}

.feedback {
  min-height: 5rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid rgba(93, 16, 36, 0.18);
  border-radius: 0.55rem;
  background: var(--gold-100);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1rem;
  padding: 2.2rem 1rem 3rem;
  color: rgba(255, 250, 240, 0.72);
  background: var(--burgundy-950);
}

.footer strong {
  color: var(--gold-500);
}

@media (max-width: 980px) {
  .hero-grid,
  .section-title,
  .pathway-layout,
  .atlas-grid,
  .simulator-grid {
    grid-template-columns: 1fr;
  }

  .paper-grid,
  .diagnostic-grid {
    grid-template-columns: 1fr;
  }

  .comparison-table > div {
    grid-template-columns: 1fr;
  }

  .comparison-table span {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .comparison-table span:first-child {
    border-top: 0;
    background: var(--gold-100);
  }

  .hero-grid {
    align-items: center;
    min-height: auto;
    padding-top: 4rem;
  }

  .hero-canvas {
    left: -12%;
    top: -10%;
    width: 124%;
    height: 120%;
  }

  .neuro-visual {
    min-height: 36.4rem;
  }
}

@media (max-width: 680px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
  }

  .brand small {
    max-width: 16rem;
  }

  .hero-copy h1 {
    font-size: 2.75rem;
    line-height: 0.96;
  }

  .hero-canvas {
    left: -10%;
    top: -8%;
    width: 120%;
    height: 116%;
  }

  .neuro-visual {
    min-height: 31.5rem;
  }

  .knowledge-map {
    min-height: 29rem;
  }
}

/* Brain Tumor Symptom Explorer additions */
.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem;margin-top:2rem;max-width:48rem}.hero-metrics article{padding:.9rem;border:1px solid rgba(255,227,138,.22);border-radius:.65rem;background:rgba(255,255,255,.07)}.hero-metrics strong,.hero-metrics span{display:block}.hero-metrics strong{color:var(--gold-500);font-size:1.15rem}.hero-metrics span{color:rgba(255,250,240,.7);font-size:.78rem}.hero-brain-card{display:grid;place-items:center}.hero-brain{width:min(100%,38rem);filter:drop-shadow(0 25px 50px rgba(0,0,0,.35))}.brain-shell{fill:url(#brainFill);stroke:#ffe38a;stroke-width:3;filter:url(#brainGlow)}.brain-folds{stroke:rgba(93,16,36,.45);stroke-width:8}.hero-hotspots circle{fill:var(--burgundy-650);stroke:white;stroke-width:4;animation:pulseSpot 2.4s ease-in-out infinite;transform-origin:center}.hero-hotspots circle:nth-child(2){animation-delay:.35s}.hero-hotspots circle:nth-child(3){animation-delay:.7s}.hero-hotspots circle:nth-child(4){animation-delay:1.05s}.hero-hotspots circle:nth-child(5){animation-delay:1.4s}@keyframes pulseSpot{50%{opacity:.55;transform:scale(1.2)}}.floating-label{position:absolute;padding:.55rem .75rem;color:var(--burgundy-950);border-radius:999px;background:rgba(255,244,201,.92);font-size:.78rem;font-weight:900;box-shadow:0 12px 35px rgba(0,0,0,.18)}.label-a{top:15%;left:1%}.label-b{right:0;top:38%}.label-c{left:8%;bottom:14%}
.explorer-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(20rem,.46fr);gap:1rem}.brain-workspace,.symptom-panel,.quiz-shell{border:1px solid var(--line);border-radius:.75rem;background:rgba(255,253,248,.9);box-shadow:0 18px 56px rgba(38,4,13,.1);backdrop-filter:blur(16px)}.brain-workspace{padding:1rem}.brain-toolbar{display:flex;flex-wrap:wrap;gap:.5rem}.view-button,.secondary-action{padding:.62rem .85rem;color:var(--burgundy-800);border:1px solid rgba(93,16,36,.2);border-radius:999px;background:var(--paper-strong);font-weight:800}.view-button.active,.view-button:hover{color:var(--burgundy-950);background:var(--gold-500);border-color:transparent}.brain-map{width:100%;min-height:35rem;margin-top:.8rem;border-radius:.7rem;background:radial-gradient(circle at center,rgba(244,197,66,.2),transparent 22rem),linear-gradient(135deg,#300611,#68152b)}.brain-base{fill:url(#mapBrainFill);stroke:#ffe38a;stroke-width:3}.region{cursor:pointer;fill:rgba(255,253,248,.1);stroke:rgba(93,16,36,.42);stroke-width:3;transition:.25s}.region:hover,.region.active{fill:rgba(143,24,53,.72);stroke:white;filter:url(#regionGlow)}.map-folds{stroke:rgba(93,16,36,.4);stroke-width:7;pointer-events:none}.region-labels text{fill:#26040d;font-size:17px;font-weight:950;text-anchor:middle;pointer-events:none}.brain-tip{margin:.5rem 0;color:var(--muted);font-size:.84rem}.region-buttons{display:flex;flex-wrap:wrap;gap:.5rem}.region-button{padding:.58rem .78rem;color:var(--burgundy-800);border:1px solid rgba(93,16,36,.2);border-radius:.55rem;background:var(--paper-strong);font-weight:800}.region-button.active{color:white;background:var(--burgundy-800)}.focus-mode .region:not(.active){opacity:.16}.focus-mode .region-labels text{opacity:.2}.focus-mode .region-labels text.active-label{opacity:1;fill:white}.symptom-panel{align-self:stretch;padding:1.25rem}.symptom-panel h3{margin:.25rem 0 .65rem;color:var(--burgundy-950);font-size:clamp(2rem,4vw,3.3rem);line-height:1}.symptom-panel h4{margin:1.35rem 0 .65rem;color:var(--burgundy-950)}.association-meter>div:first-child{display:flex;justify-content:space-between;gap:1rem;color:var(--muted);font-size:.88rem}.meter-track{height:.6rem;margin-top:.45rem;overflow:hidden;border-radius:999px;background:rgba(93,16,36,.12)}.meter-track span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--burgundy-650),var(--gold-500));transition:width .45s}.symptom-tags{display:flex;flex-wrap:wrap;gap:.48rem}.symptom-tags span{padding:.5rem .62rem;color:var(--burgundy-950);border-radius:999px;background:var(--gold-100);font-size:.82rem;font-weight:850}.clinical-note{padding:1rem;border-left:4px solid var(--gold-500);background:rgba(244,197,66,.1)}.callout{margin-top:1rem;padding:1rem;color:white;border-radius:.65rem;background:linear-gradient(135deg,var(--burgundy-800),var(--burgundy-950))}.callout strong{color:var(--gold-500)}.callout p{margin:.35rem 0 0;color:rgba(255,250,240,.78)}
.mini-bars{display:grid;gap:.65rem;margin-top:1.2rem}.mini-bars div{display:grid;grid-template-columns:4rem 1fr 3rem;align-items:center;gap:.6rem;font-size:.82rem}.mini-bars i{height:.55rem;border-radius:999px;background:linear-gradient(90deg,var(--gold-500) var(--w),rgba(255,255,255,.15) var(--w))}.stat-pill-row,.observer-flow{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:1.2rem}.stat-pill-row span,.observer-flow span{padding:.55rem .7rem;border-radius:999px;background:var(--gold-100);font-weight:850}.observer-flow b{color:var(--burgundy-650)}
.quiz-shell{padding:clamp(1rem,3vw,1.5rem)}.quiz-progress{display:flex;align-items:center;gap:1rem}.quiz-progress>div{flex:1;height:.55rem;overflow:hidden;border-radius:999px;background:rgba(93,16,36,.12)}.quiz-progress i{display:block;width:25%;height:100%;background:linear-gradient(90deg,var(--burgundy-650),var(--gold-500));transition:width .35s}.quiz-case{max-width:54rem;margin:1.8rem 0}.quiz-case h3{margin:.2rem 0 .7rem;color:var(--burgundy-950);font-size:clamp(1.8rem,4vw,3rem)}.quiz-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem}.quiz-option{padding:1rem;color:var(--ink);text-align:left;border:1px solid var(--line);border-radius:.65rem;background:var(--paper-strong);font-weight:800}.quiz-option:hover{transform:translateY(-2px);box-shadow:0 12px 25px rgba(38,4,13,.08)}.quiz-option.correct{color:white;background:#315d48}.quiz-option.incorrect{color:white;background:var(--burgundy-650)}.quiz-option:disabled{cursor:default}.quiz-actions{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center}.secondary-action{margin-top:1.35rem}.safety-section{padding-top:3rem}
@media(max-width:980px){.explorer-layout{grid-template-columns:1fr}.hero-metrics{grid-template-columns:1fr 1fr}.brain-map{min-height:29rem}}@media(max-width:680px){.hero-metrics,.quiz-options{grid-template-columns:1fr}.floating-label{display:none}.brain-map{min-height:23rem}.region-labels text{font-size:13px}.explorer-layout{gap:.75rem}}

/* Anatomically clearer superior brain view */
.anatomical-brain{transform-origin:center}.brain-base{fill:url(#mapBrainFill);stroke:#ffe38a;stroke-width:3}.central-fissure{fill:none;stroke:rgba(58,7,20,.75);stroke-width:10;stroke-linecap:round}.orientation-key text{fill:rgba(255,244,201,.8);font-size:13px;font-weight:900;letter-spacing:.16em;text-anchor:middle}.orientation-key path{stroke:rgba(255,227,138,.75);stroke-width:2}.region-labels text{paint-order:stroke;stroke:rgba(255,244,201,.78);stroke-width:5px;stroke-linejoin:round}.quiz-option{display:flex;align-items:center;gap:.8rem}.quiz-option>span{display:grid;place-items:center;flex:0 0 2rem;width:2rem;height:2rem;border-radius:50%;background:var(--gold-100);color:var(--burgundy-950);font-size:.8rem;font-weight:950}.quiz-option.correct>span,.quiz-option.incorrect>span{background:rgba(255,255,255,.2);color:white}.quiz-result{grid-column:1/-1;display:grid;place-items:center;gap:.4rem;min-height:12rem;padding:2rem;border:1px solid var(--line);border-radius:.75rem;background:linear-gradient(135deg,var(--gold-100),var(--paper-strong));text-align:center}.quiz-result strong{color:var(--burgundy-950);font-size:clamp(3rem,8vw,6rem);line-height:1}.quiz-result span{color:var(--muted);font-weight:850}


/* Final layout corrections */
.hero-brain-card { position: relative; isolation: isolate; }
.hero-brain { position: relative; z-index: 1; }
.floating-label { z-index: 3; white-space: nowrap; }
.label-b { right: 1.5%; top: 27%; }
.patterns-section .section-title { row-gap: 1.25rem; }
.patterns-section .section-title h2 { line-height: 1.02; }
.patterns-section .section-title > p:last-child { padding-top: .35rem; }
@media (max-width: 1120px) and (min-width: 681px) {
  .label-b { right: -1%; top: 24%; }
}


/* Definitive spacing fix for section 02 */
#patterns .section-title.compact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  max-width: 64rem;
  margin-bottom: 2.25rem;
}

#patterns .section-title.compact .micro-label {
  margin: 0 0 0.85rem;
}

#patterns .section-title.compact h2 {
  display: block;
  width: 100%;
  margin: 0 0 1.25rem;
  line-height: 1.08;
  overflow-wrap: normal;
}

#patterns .section-title.compact > p:last-child {
  display: block;
  position: static;
  width: 100%;
  margin: 0;
  padding: 0;
  line-height: 1.7;
  clear: both;
}

@media (max-width: 680px) {
  #patterns .section-title.compact h2 {
    font-size: clamp(2rem, 11vw, 3.1rem);
    margin-bottom: 1rem;
  }

  #patterns .section-title.compact > p:last-child {
    line-height: 1.6;
  }
}

/* Anatomically corrected superior-view lobulation */
.temporal{
  fill:rgba(244,197,66,.18);
}
.deep-region{cursor:pointer}
.region.limbic{
  fill:rgba(92,155,104,.34);
  stroke:rgba(212,255,218,.92);
  stroke-width:3;
  stroke-dasharray:9 7;
}
.deep-region:hover .region.limbic,
.deep-region.active .region.limbic,
.region.limbic.active{
  fill:rgba(92,155,104,.72);
  stroke:white;
  filter:url(#regionGlow);
}
.amygdala-marker{
  fill:rgba(255,227,138,.85);
  stroke:#5d1024;
  stroke-width:2;
  pointer-events:none;
}
.central-sulcus,
.lateral-sulcus{
  fill:none;
  stroke:rgba(38,4,13,.72);
  stroke-width:7;
  stroke-linecap:round;
  pointer-events:none;
}
.lateral-sulcus{stroke-width:5;stroke-dasharray:5 6}
.limbic-label-bg{
  fill:rgba(38,4,13,.88);
  stroke:rgba(255,227,138,.72);
  stroke-width:1.5;
  pointer-events:none;
}
.limbic-label{
  fill:#fffaf0!important;
  font-size:14px!important;
  font-weight:900!important;
  text-anchor:middle;
  dominant-baseline:middle;
  letter-spacing:.01em;
  pointer-events:none;
}