:root {
  color-scheme: dark;
  --bg: #06111d;
  --bg-deep: #020812;
  --surface: #0b1a2a;
  --surface-2: #102338;
  --surface-3: #152d46;
  --text: #f4f8fc;
  --soft: #cad7e5;
  --muted: #9cafc3;
  --line: #294762;
  --line-strong: #4f718f;
  --cyan: #4ee9f5;
  --blue: #84b9ff;
  --violet: #b9a8ff;
  --green: #65e7b2;
  --amber: #ffd36d;
  --orange: #ff9b61;
  --red: #ff718c;
  --cyan-ink: #00191d;
  --danger-bg: #32131f;
  --warning-bg: #30240c;
  --success-bg: #092a21;
  --info-bg: #092536;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.34);
  --radius: 22px;
  --radius-sm: 14px;
  --wrap: 1240px;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f7fbff;
  --bg-deep: #eaf2f8;
  --surface: #ffffff;
  --surface-2: #f1f6fa;
  --surface-3: #e7f0f6;
  --text: #10293f;
  --soft: #334e64;
  --muted: #587085;
  --line: #9aabba;
  --line-strong: #5c7489;
  --cyan: #006c7c;
  --blue: #145fae;
  --violet: #5944bd;
  --green: #087750;
  --amber: #744900;
  --orange: #973b0c;
  --red: #af2440;
  --cyan-ink: #ffffff;
  --danger-bg: #fff0f3;
  --warning-bg: #fff7e4;
  --success-bg: #eafaf3;
  --info-bg: #eaf7fb;
  --shadow: 0 18px 48px rgba(16, 41, 63, 0.13);
}

html.a11y-contrast {
  color-scheme: dark;
  --bg: #000000;
  --bg-deep: #000000;
  --surface: #000000;
  --surface-2: #0d0d0d;
  --surface-3: #171717;
  --text: #ffffff;
  --soft: #ffffff;
  --muted: #f3f3f3;
  --line: #ffffff;
  --line-strong: #ffffff;
  --cyan: #79f7ff;
  --blue: #a8ceff;
  --violet: #d9ceff;
  --green: #82ffc7;
  --amber: #ffed63;
  --orange: #ffc07a;
  --red: #ff94aa;
  --cyan-ink: #000000;
  --danger-bg: #000000;
  --warning-bg: #000000;
  --success-bg: #000000;
  --info-bg: #000000;
  --shadow: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
  scroll-padding-top: 8rem;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 0;
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(78, 233, 245, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 233, 245, 0.025) 1px, transparent 1px),
    radial-gradient(circle at 8% 8%, rgba(78, 233, 245, 0.09), transparent 30rem),
    radial-gradient(circle at 94% 24%, rgba(132, 185, 255, 0.08), transparent 34rem),
    var(--bg);
  background-size: 44px 44px, 44px 44px, auto, auto, auto;
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.62;
}

html[data-theme="light"] body {
  background:
    linear-gradient(rgba(0, 108, 124, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 108, 124, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 8% 8%, rgba(0, 108, 124, 0.06), transparent 30rem),
    radial-gradient(circle at 94% 24%, rgba(89, 68, 189, 0.05), transparent 34rem),
    var(--bg);
  background-size: 44px 44px, 44px 44px, auto, auto, auto;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
select,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
.button,
.nav-links a,
.icon-button,
.menu-button {
  min-height: 44px;
}

a {
  color: var(--cyan);
  text-underline-offset: 0.18em;
}

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

h1,
h2,
h3,
h4,
p,
li,
td,
th,
figcaption {
  overflow-wrap: anywhere;
}

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

::selection {
  background: var(--cyan);
  color: var(--cyan-ink);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: -120px;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1rem;
  border-radius: 0.65rem;
  background: var(--amber);
  color: #111827;
  font-weight: 900;
  transition: top 160ms ease;
}

.skip-link:focus {
  top: 1rem;
}

.wrap {
  width: min(calc(100% - 2rem), var(--wrap));
  min-width: 0;
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding-top: env(safe-area-inset-top);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 17, 29, 0.94);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

html[data-theme="light"] .topbar {
  background: rgba(247, 251, 255, 0.96);
  box-shadow: 0 8px 24px rgba(16, 41, 63, 0.08);
}

.nav-shell {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 0.8rem;
  background: var(--surface-2);
  font-size: 1.35rem;
}

.brand > span:last-child {
  display: grid;
  min-width: 0;
  gap: 0.05rem;
}

.brand strong {
  font-size: 0.98rem;
  letter-spacing: -0.01em;
}

.brand small {
  color: var(--muted);
  font-size: 0.76rem;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.28rem;
}

.nav-links a,
.icon-button,
.menu-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 1px solid transparent;
  border-radius: 0.72rem;
  background: transparent;
  color: var(--soft);
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.nav-links a,
.icon-button {
  padding: 0.58rem 0.7rem;
}

.nav-links a:hover,
.icon-button:hover,
.menu-button:hover,
.icon-button[aria-pressed="true"] {
  border-color: var(--line);
  background: var(--surface-2);
  color: var(--text);
}

.menu-button {
  display: none;
  padding: 0.55rem 0.75rem;
}

.review-strip {
  border-bottom: 1px solid #8d5b1e;
  background: var(--warning-bg);
}

.review-content {
  display: flex;
  min-height: 48px;
  align-items: center;
  gap: 0.8rem 1rem;
  padding-block: 0.55rem;
  font-size: 0.88rem;
}

.review-content strong {
  color: var(--amber);
  white-space: nowrap;
}

.review-content span {
  color: var(--soft);
}

.review-content a {
  margin-left: auto;
  white-space: nowrap;
  font-weight: 800;
}

main {
  min-width: 0;
}

.hero {
  position: relative;
  padding: clamp(4rem, 8vw, 7.5rem) 0 clamp(3rem, 6vw, 5.5rem);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero::after {
  position: absolute;
  right: -10rem;
  bottom: -24rem;
  width: 38rem;
  height: 38rem;
  border: 1px solid rgba(78, 233, 245, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 4rem rgba(78, 233, 245, 0.025), 0 0 0 8rem rgba(78, 233, 245, 0.018);
  content: "";
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(20rem, 0.65fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.eyebrow,
.section-label,
.panel-kicker {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 16ch;
  margin: 0.7rem 0 1rem;
  font-size: clamp(2.5rem, 7vw, 5.7rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.hero h1 span {
  color: var(--cyan);
}

.hero-lead {
  max-width: 66ch;
  margin: 0;
  color: var(--soft);
  font-size: clamp(1.05rem, 2.1vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.hero-note {
  max-width: 74ch;
  margin: 1.15rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.hero-panel,
.tool-console,
.documentation-card,
.aphasia-tool,
.limits-box,
.nuance-box,
.face-nuance {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(21, 45, 70, 0.78), rgba(11, 26, 42, 0.94));
  box-shadow: var(--shadow);
}

html[data-theme="light"] :is(.hero-panel, .tool-console, .documentation-card, .aphasia-tool, .limits-box, .nuance-box, .face-nuance) {
  background: linear-gradient(145deg, #ffffff, #f1f6fa);
}

.hero-panel {
  padding: clamp(1.2rem, 3vw, 1.8rem);
}

.hero-panel h2 {
  margin: 0.35rem 0 1.2rem;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.2;
}

.four-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.four-list li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.four-list li > span {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--cyan);
  color: var(--cyan-ink);
  font-weight: 950;
}

.four-list div {
  display: grid;
  gap: 0.12rem;
}

.four-list small {
  color: var(--muted);
}

.emergency-band {
  border-bottom: 1px solid #76364a;
  background: var(--danger-bg);
}

.emergency-grid {
  display: grid;
  grid-template-columns: minmax(14rem, 0.75fr) minmax(20rem, 1.3fr);
  gap: 0.8rem 2rem;
  padding-block: 1.5rem;
}

.emergency-grid h2 {
  margin: 0.2rem 0 0;
  color: var(--text);
  font-size: clamp(1.25rem, 2.7vw, 1.75rem);
  line-height: 1.2;
}

.emergency-grid ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--soft);
}

.emergency-grid p {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(255, 113, 140, 0.42);
}

.danger-label {
  color: var(--red);
}

.section {
  padding: clamp(3.8rem, 7vw, 6.5rem) 0;
}

.section-alt {
  border-block: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-deep) 68%, transparent);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.section-heading > div {
  max-width: 76ch;
}

.section-heading h2 {
  margin: 0.35rem 0 0.5rem;
  font-size: clamp(1.85rem, 4.6vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.section-heading p {
  margin: 0;
  color: var(--soft);
  font-size: 1.03rem;
}

.badge {
  display: inline-flex;
  min-height: 32px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.7rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-align: center;
}

.badge.cyan { color: var(--cyan); }
.badge.green { color: var(--green); }
.badge.violet { color: var(--violet); }
.badge.amber { color: var(--amber); }
.badge.red { color: var(--red); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.68rem 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.8rem;
  background: var(--surface-2);
  color: var(--text);
  font-weight: 850;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background-color 140ms ease;
}

.button:hover {
  border-color: var(--cyan);
  transform: translateY(-1px);
}

.button.primary {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--cyan-ink);
}

.button.ghost {
  background: transparent;
}

.button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.gate-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
}

.gate-grid li {
  display: grid;
  grid-template-columns: 2.8rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.gate-number {
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  border: 1px solid var(--cyan);
  border-radius: 0.65rem;
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 950;
}

.gate-grid strong {
  font-size: 1.03rem;
}

.gate-grid p {
  margin: 0.28rem 0 0;
  color: var(--muted);
}

.tool-console,
.aphasia-tool {
  display: grid;
  grid-template-columns: minmax(14rem, 0.62fr) minmax(22rem, 1.1fr);
  gap: 1.5rem 2rem;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.tool-copy h3 {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.55rem;
  line-height: 1.2;
}

.tool-copy p {
  margin: 0;
  color: var(--soft);
}

.field-grid,
.aphasia-fields {
  display: grid;
  gap: 1rem;
}

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

.aphasia-fields .button {
  grid-column: 1 / -1;
}

.field {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
}

.field > span,
.feature-fieldset legend {
  color: var(--soft);
  font-size: 0.88rem;
  font-weight: 850;
}

select {
  width: 100%;
  min-height: 48px;
  padding: 0.65rem 2.5rem 0.65rem 0.78rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.72rem;
  background: var(--bg-deep);
}

.feature-fieldset {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1rem;
  min-width: 0;
  margin: 0;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
}

.feature-fieldset legend {
  padding-inline: 0.4rem;
}

.feature-fieldset label {
  display: grid;
  grid-template-columns: 1.1rem minmax(0, 1fr);
  align-items: start;
  gap: 0.5rem;
  color: var(--soft);
  cursor: pointer;
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.08rem;
  height: 1.08rem;
  margin: 0.25rem 0 0;
  accent-color: var(--cyan);
}

.tool-actions,
.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.tool-result {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.45rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--line-strong);
  border-left: 5px solid var(--cyan);
  border-radius: var(--radius-sm);
  background: var(--info-bg);
}

.tool-result strong {
  font-size: 1.08rem;
}

.tool-result span,
.tool-result p,
.tool-result li {
  color: var(--soft);
}

.tool-result p,
.tool-result ul {
  margin: 0;
}

.tool-result ul {
  padding-left: 1.25rem;
}

.tool-result.is-urgent {
  border-color: var(--red);
  border-left-color: var(--red);
  background: var(--danger-bg);
}

.tool-result.is-caution {
  border-color: var(--amber);
  border-left-color: var(--amber);
  background: var(--warning-bg);
}

.localization-matrix {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.localization-card {
  display: grid;
  align-content: start;
  gap: 0.65rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.localization-card.is-ranked {
  border-color: var(--cyan);
  box-shadow: inset 0 0 0 1px var(--cyan);
}

.localization-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

.localization-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.91rem;
}

.localization-card p strong {
  color: var(--soft);
}

.localization-index {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.exam-route {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.exam-route article,
.six-axis article,
.sensory-cards article,
.pathway-list article,
.brainstem-grid article,
.review-grid article,
.compare-cards article {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.exam-route article {
  padding: 1rem;
}

.exam-route article > span {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  font-weight: 900;
}

.exam-route h3 {
  margin: 0.25rem 0;
  font-size: 1rem;
}

.exam-route p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.checklist-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.5rem 0 0.9rem;
  padding: 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.checklist-toolbar > div:first-child {
  display: grid;
  gap: 0.1rem;
}

.checklist-toolbar small {
  color: var(--muted);
}

#osceTimer {
  min-width: 5.2rem;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.65rem;
  background: var(--bg-deep);
  color: var(--amber);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.15rem;
  font-weight: 950;
  text-align: center;
}

#osceTimer.is-finished {
  border-color: var(--red);
  color: var(--red);
}

.checklist-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.checklist-group {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.checklist-group h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 0.7rem;
  font-size: 1.04rem;
}

.checklist-group h3 small {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.76rem;
}

.check-item {
  display: grid;
  grid-template-columns: 1.2rem minmax(0, 1fr);
  gap: 0.65rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  cursor: pointer;
}

.check-item:first-of-type {
  border-top: 0;
}

.check-item > span {
  display: grid;
  gap: 0.18rem;
}

.check-item strong {
  line-height: 1.35;
}

.check-item small {
  color: var(--muted);
  font-size: 0.87rem;
}

.check-item.is-complete strong {
  color: var(--green);
}

.documentation-card {
  display: grid;
  grid-template-columns: minmax(12rem, 0.55fr) minmax(20rem, 1fr) auto;
  align-items: center;
  gap: 1.2rem;
  margin-top: 1rem;
  padding: 1.25rem;
}

.documentation-card h3 {
  margin: 0.3rem 0 0;
  font-size: 1.12rem;
}

.documentation-card blockquote {
  margin: 0;
  padding: 0 0 0 1rem;
  border-left: 3px solid var(--cyan);
  color: var(--soft);
}

.feature-pair {
  display: grid;
  grid-template-columns: minmax(18rem, 0.9fr) minmax(20rem, 1.1fr);
  align-items: stretch;
  gap: 1rem;
}

.learning-figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.learning-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--surface-2);
}

.learning-figure figcaption {
  padding: 0.9rem 1rem;
  color: var(--soft);
  font-size: 0.9rem;
}

.learning-figure figcaption strong {
  color: var(--text);
}

.wide-figure {
  margin-top: 1rem;
}

.wide-figure img {
  max-height: 540px;
}

.six-axis,
.pathway-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.six-axis article,
.pathway-list article {
  display: grid;
  align-content: start;
  gap: 0.35rem;
  padding: 1rem;
}

.six-axis b,
.pathway-list b {
  color: var(--cyan);
}

.six-axis span,
.pathway-list span {
  color: var(--muted);
  font-size: 0.91rem;
}

.aphasia-tool {
  margin-top: 1rem;
}

.table-scroll {
  max-width: 100%;
  margin-top: 1rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  overscroll-behavior-inline: contain;
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th,
td {
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

thead th {
  position: sticky;
  top: 0;
  background: var(--surface-3);
  color: var(--text);
  font-size: 0.82rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

tbody th {
  color: var(--text);
}

tbody td {
  color: var(--soft);
}

tbody tr:last-child :is(th, td) {
  border-bottom: 0;
}

tbody tr:hover {
  background: var(--surface-2);
}

.nuance-box,
.face-nuance,
.limits-box {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
}

.nuance-box {
  border-left: 5px solid var(--violet);
  color: var(--soft);
}

.face-nuance {
  border-left: 5px solid var(--amber);
  background: var(--warning-bg);
}

.face-nuance strong {
  color: var(--amber);
}

.face-nuance p {
  margin: 0.3rem 0 0;
}

.compare-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.compare-cards article {
  padding: 1rem;
}

.compare-cards h3 {
  margin: 0.65rem 0 0.5rem;
  font-size: 1.15rem;
  line-height: 1.25;
}

.compare-cards ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--soft);
}

.card-state {
  display: inline-flex;
  padding: 0.22rem 0.52rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 900;
}

.card-state.central { color: var(--blue); }
.card-state.peripheral { color: var(--orange); }

.accordion-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.accordion-grid details {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.accordion-grid summary {
  padding: 1rem;
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
}

.accordion-grid details[open] summary {
  border-bottom: 1px solid var(--line);
  color: var(--cyan);
}

.accordion-grid details > div {
  padding: 0 1rem 1rem;
  color: var(--soft);
}

.accordion-grid h3 {
  margin: 1rem 0 0.25rem;
  color: var(--text);
  font-size: 1rem;
}

.accordion-grid p,
.accordion-grid ul {
  margin: 0.65rem 0 0;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

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

.sensory-cards,
.brainstem-grid,
.review-grid {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.sensory-cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.brainstem-grid,
.review-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.sensory-cards article,
.brainstem-grid article,
.review-grid article {
  padding: 1rem;
}

.sensory-cards h3,
.brainstem-grid h3,
.review-grid h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.sensory-cards p,
.brainstem-grid p,
.review-grid p {
  margin: 0;
  color: var(--muted);
}

.atlas-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.atlas-card {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.16);
}

.atlas-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--surface-2);
}

.atlas-card figcaption {
  display: grid;
  grid-template-columns: 2.3rem minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
}

.atlas-card figcaption > span {
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 950;
}

.atlas-card figcaption div {
  display: grid;
  gap: 0.05rem;
}

.atlas-card figcaption small {
  color: var(--muted);
}

.case-shell {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.case-card {
  display: grid;
  align-content: start;
  gap: 0.8rem;
  min-width: 0;
  margin: 0;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.case-card.is-correct {
  border-color: var(--green);
}

.case-card.is-incorrect {
  border-color: var(--amber);
}

.case-card legend {
  padding-inline: 0.35rem;
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.case-stem {
  margin: 0;
  color: var(--text);
  font-weight: 750;
}

.case-options {
  display: grid;
  gap: 0.45rem;
}

.case-option {
  display: grid;
  grid-template-columns: 1.1rem minmax(0, 1fr);
  align-items: start;
  gap: 0.55rem;
  padding: 0.68rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.68rem;
  color: var(--soft);
  cursor: pointer;
}

.case-option:hover {
  border-color: var(--cyan);
  background: var(--surface-2);
}

.case-option.is-correct {
  border-color: var(--green);
  background: var(--success-bg);
  color: var(--text);
}

.case-option.is-wrong {
  border-color: var(--red);
  background: var(--danger-bg);
}

.case-option:has(input:disabled) {
  cursor: default;
}

.case-feedback {
  display: grid;
  gap: 0.3rem;
  margin: 0;
  padding: 0.8rem;
  border-left: 4px solid var(--amber);
  border-radius: 0.5rem;
  background: var(--warning-bg);
  color: var(--soft);
}

.case-feedback.correct {
  border-left-color: var(--green);
  background: var(--success-bg);
}

.case-feedback strong {
  color: var(--text);
}

.case-retry {
  justify-self: start;
}

.reference-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.reference-card {
  display: grid;
  align-content: start;
  gap: 0.35rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.reference-card a {
  font-weight: 850;
}

.reference-card small,
.reference-card p {
  color: var(--muted);
}

.reference-card p {
  margin: 0;
}

.limits-box {
  border-left: 5px solid var(--red);
  background: var(--danger-bg);
}

.limits-box h3 {
  margin: 0;
}

.limits-box ul {
  margin: 0.55rem 0 0;
  padding-left: 1.2rem;
}

.review-gate {
  border-top: 1px solid #7d3348;
  background: var(--danger-bg);
}

footer {
  padding: 2rem 0 calc(2rem + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
}

.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-grid p {
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.footer-grid > div:last-child {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
}

body.focus-mode .hero,
body.focus-mode #atlas,
body.focus-mode #fontes,
body.focus-mode #gate-revisao,
body.focus-mode footer {
  display: none;
}

body.focus-mode .section {
  padding-block: 2.5rem;
}

body.focus-mode .section-heading p {
  max-width: 64ch;
}

@media (max-width: 1080px) {
  .menu-button {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% - 0.25rem);
    right: 0;
    display: none;
    width: min(94vw, 25rem);
    max-height: calc(100vh - 6rem);
    padding: 0.65rem;
    overflow-y: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-links a,
  .nav-links .icon-button {
    justify-content: flex-start;
    padding-inline: 0.75rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 820px;
  }

  .hero-panel {
    max-width: 820px;
  }

  .localization-matrix,
  .exam-route,
  .brainstem-grid,
  .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .documentation-card {
    grid-template-columns: 1fr;
  }

  .documentation-card .button {
    justify-self: start;
  }
}

@media (max-width: 820px) {
  html {
    scroll-padding-top: 6.5rem;
  }

  .review-content {
    display: grid;
    grid-template-columns: 1fr auto;
  }

  .review-content strong {
    white-space: normal;
  }

  .review-content span {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .review-content a {
    grid-column: 2;
    grid-row: 1;
  }

  .emergency-grid,
  .tool-console,
  .aphasia-tool,
  .feature-pair {
    grid-template-columns: 1fr;
  }

  .emergency-grid p {
    grid-column: auto;
  }

  .gate-grid,
  .checklist-groups,
  .accordion-grid,
  .media-grid,
  .media-grid.two,
  .sensory-cards,
  .atlas-grid,
  .case-shell,
  .reference-list {
    grid-template-columns: 1fr;
  }

  .checklist-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .toolbar-actions {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .wrap {
    width: min(calc(100% - 1.15rem), var(--wrap));
  }

  .nav-shell {
    min-height: 68px;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand small {
    display: none;
  }

  .nav-links.is-open,
  .aphasia-fields,
  .feature-fieldset,
  .six-axis,
  .pathway-list,
  .compare-cards,
  .localization-matrix,
  .exam-route,
  .brainstem-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    width: 100%;
  }

  .review-content {
    grid-template-columns: 1fr;
  }

  .review-content span,
  .review-content a {
    grid-column: 1;
    grid-row: auto;
    margin-left: 0;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 15vw, 4.1rem);
  }

  .hero-actions,
  .hero-actions .button,
  .tool-actions,
  .tool-actions .button,
  .toolbar-actions,
  .toolbar-actions .button {
    width: 100%;
  }

  .section-heading {
    flex-direction: column;
    gap: 0.8rem;
  }

  .section-heading .badge {
    align-self: flex-start;
  }

  .gate-grid li {
    grid-template-columns: 2.45rem minmax(0, 1fr);
    padding: 0.9rem;
  }

  .gate-number {
    width: 2.35rem;
    height: 2.35rem;
  }

  .tool-console,
  .aphasia-tool {
    padding: 1rem;
  }

  .footer-grid {
    flex-direction: column;
  }

  .footer-grid > div:last-child {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  @page {
    size: A4;
    margin: 14mm;
  }

  :root,
  html[data-theme="light"],
  html.a11y-contrast {
    --bg: #ffffff;
    --bg-deep: #ffffff;
    --surface: #ffffff;
    --surface-2: #ffffff;
    --surface-3: #f2f2f2;
    --text: #000000;
    --soft: #181818;
    --muted: #333333;
    --line: #777777;
    --line-strong: #444444;
    --cyan: #005b66;
    --green: #075b3e;
    --amber: #664000;
    --red: #8b1532;
    --shadow: none;
  }

  html,
  body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 10pt;
  }

  .topbar,
  .review-strip,
  .hero-actions,
  .tool-actions,
  .toolbar-actions,
  .case-retry,
  footer,
  .skip-link {
    display: none !important;
  }

  .hero,
  .section,
  body.focus-mode .section {
    display: block !important;
    padding-block: 8mm;
  }

  body.focus-mode :is(.hero, #atlas, #fontes, #gate-revisao, footer) {
    display: block;
  }

  .hero-grid,
  .emergency-grid,
  .tool-console,
  .aphasia-tool,
  .feature-pair,
  .documentation-card {
    grid-template-columns: 1fr;
  }

  .gate-grid,
  .localization-matrix,
  .exam-route,
  .checklist-groups,
  .media-grid,
  .media-grid.two,
  .sensory-cards,
  .brainstem-grid,
  .review-grid,
  .atlas-grid,
  .case-shell,
  .reference-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-panel,
  .tool-console,
  .documentation-card,
  .aphasia-tool,
  .limits-box,
  .nuance-box,
  .face-nuance,
  .learning-figure,
  .atlas-card,
  .case-card,
  .reference-card,
  .checklist-group,
  .localization-card {
    box-shadow: none !important;
    break-inside: avoid;
  }

  .learning-figure img,
  .atlas-card img {
    max-height: 72mm;
  }

  a {
    color: #000000;
    text-decoration: underline;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 8pt;
    font-weight: 400;
  }

  .section-heading,
  h2,
  h3,
  figure,
  table,
  details {
    break-inside: avoid;
  }

  thead {
    display: table-header-group;
  }
}