:root {
  --p-ink-950: #001a1e;
  --p-ink-900: #002427;
  --p-teal-800: #063536;
  --p-teal-700: #0d4543;
  --p-mint-300: #a5ffe2;
  --p-mint-400: #6feec0;
  --p-mint-500: #3dd5ad;
  --p-cyan-400: #70dce3;
  --p-white: #f5fbf9;
  --p-slate-200: #c9dcda;
  --p-slate-300: #a8c4c1;
  --color-canvas: var(--p-ink-950);
  --color-reading: var(--p-ink-900);
  --color-surface: rgba(7, 48, 48, 0.82);
  --color-surface-glass: rgba(12, 61, 60, 0.62);
  --color-surface-raised: rgba(13, 69, 67, 0.72);
  --color-text: var(--p-white);
  --color-text-secondary: var(--p-slate-200);
  --color-text-muted: var(--p-slate-300);
  --color-action: var(--p-mint-400);
  --color-action-text: #002b2a;
  --color-link: var(--p-mint-300);
  --color-border: rgba(166, 255, 230, 0.2);
  --color-border-strong: rgba(166, 255, 230, 0.42);
  --color-focus: #b8ffe8;
  --color-error: #ffc2b9;
  --shadow-panel: 0 12px 32px rgba(0, 14, 16, 0.2);
  --glow-mint: 0 0 24px rgba(65, 232, 181, 0.22);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --gutter: clamp(1.5rem, 3.7vw, 3.5rem);
  --section-gap: clamp(3rem, 6vw, 5rem);
  --radius-sm: 0.625rem;
  --radius-md: 1rem;
  --radius-lg: 1.375rem;
  --header-height: 6.5rem;
  --tap-target: 2.75rem;
  --font-size-metadata: 0.9rem;
  --font-size-utility: clamp(1rem, 0.98rem + 0.18vw, 1.125rem);
  --space-utility: clamp(1.5rem, 3vw, 2.5rem);

}

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

html {
  background: var(--color-canvas);
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(61, 213, 173, 0.07), transparent 28rem),
    var(--color-canvas);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.97rem + 0.12vw, 1.0625rem);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

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

img {
  height: auto;
}

a {
  color: var(--color-link);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  color: var(--p-white);
}

:where(a, button, input, summary, select, textarea):focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

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

h1,
h2,
h3,
h4,
p,
figure,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--color-text);
  font-weight: 750;
  letter-spacing: -0.025em;
  line-height: 1.16;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.65rem, 2.4vw, 2.4rem);
}

h3 {
  font-size: clamp(1.25rem, 1.45vw, 1.5rem);
}

::selection {
  background: var(--p-mint-400);
  color: var(--color-action-text);
}

.pn-container {
  width: min(100% - (2 * var(--gutter)), 80rem);
  margin-inline: auto;
}

.pn-skip {
  position: fixed;
  z-index: 10000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--p-white);
  color: var(--p-ink-950);
  font-weight: 700;
  transform: translateY(-150%);
}

.pn-skip:focus {
  transform: translateY(0);
}

.pn-site-header {
  position: relative;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(166, 255, 230, 0.1);
  background: linear-gradient(180deg, rgba(0, 17, 20, 0.9), rgba(0, 26, 30, 0.18));
}

.pn-header-inner {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.5rem);
}

.pn-brand,
.pn-footer-brand {
  color: var(--p-white);
  text-decoration: none;
}

.pn-brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.7rem;
}

.pn-brand-symbol {
  width: 2.25rem;
  color: var(--p-mint-400);
  filter: drop-shadow(0 0 0.6rem rgba(111, 238, 192, 0.35));
}

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

.pn-brand strong {
  font-size: clamp(0.92rem, 1.1vw, 1.08rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.pn-brand small {
  margin-top: 0.18rem;
  color: var(--color-text-secondary);
  font-size: 0.66rem;
  letter-spacing: 0.055em;
  line-height: 1.2;
}

.pn-desktop-nav {
  margin-left: auto;
}

.pn-nav-list {
  display: flex;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: clamp(0.65rem, 1.45vw, 1.35rem);
  list-style: none;
}

.pn-nav-list a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-text-secondary);
  font-size: 0.89rem;
  font-weight: 650;
  text-decoration: none;
}

.pn-nav-list a:hover,
.pn-nav-list .current-menu-item > a,
.pn-nav-list .current_page_item > a {
  color: var(--p-white);
}

.pn-header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.7rem;
}

.pn-language-switcher a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0 0.55rem;
  color: var(--p-white);
  font-size: 0.84rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.pn-search-control {
  display: grid;
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: rgba(0, 26, 30, 0.45);
  color: var(--p-white);
}

.pn-search-control svg {
  width: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.8;
}

.pn-button {
  display: inline-flex;
  min-height: 2.875rem;
  padding: 0.7rem 1.3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform 220ms ease, box-shadow 220ms ease, background-color 220ms ease, border-color 220ms ease;
}

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

.pn-button--primary {
  background: var(--color-action);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.38), var(--glow-mint);
  color: var(--color-action-text);
}

.pn-button--primary:hover {
  background: var(--p-mint-300);
  color: var(--color-action-text);
}

.pn-button--secondary {
  border-color: var(--color-border-strong);
  background: rgba(0, 26, 30, 0.56);
  color: var(--p-white);
}

.pn-button--secondary:hover {
  border-color: var(--p-mint-300);
  background: rgba(13, 69, 67, 0.72);
}

.pn-mobile-menu {
  display: none;
  position: relative;
}

.pn-mobile-menu > summary {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.72rem;
  place-content: center;
  gap: 0.25rem;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: rgba(0, 26, 30, 0.6);
  cursor: pointer;
  list-style: none;
}

.pn-mobile-menu > summary::-webkit-details-marker {
  display: none;
}

.pn-mobile-menu > summary span {
  width: 1.15rem;
  height: 1.5px;
  background: currentColor;
  transition: transform 200ms ease, opacity 200ms ease;
}

.pn-mobile-menu[open] > summary span:first-child {
  transform: translateY(0.34rem) rotate(45deg);
}

.pn-mobile-menu[open] > summary span:nth-child(2) {
  opacity: 0;
}

.pn-mobile-menu[open] > summary span:last-child {
  transform: translateY(-0.34rem) rotate(-45deg);
}

.pn-mobile-menu > nav {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  width: min(20rem, calc(100vw - 2rem));
  padding: 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: #063536;
  box-shadow: var(--shadow-panel);
}

.pn-mobile-menu .pn-nav-list {
  display: grid;
  gap: 0;
}

.pn-mobile-menu .pn-nav-list a {
  min-height: 2.9rem;
  border-bottom: 1px solid var(--color-border);
}

.pn-mobile-menu nav > .pn-button {
  width: 100%;
  margin-top: 1rem;
}

.pn-hero {
  position: relative;
  display: grid;
  min-height: clamp(31rem, 66vw, 45rem);
  overflow: hidden;
  isolation: isolate;
}

.pn-hero-art,
.pn-hero-shade,
.pn-hero-line {
  position: absolute;
  inset: 0;
}

.pn-hero-art {
  z-index: -3;
  background: var(--p-teal-800);
}

.pn-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 48%;
}

.pn-hero-picture,
.pn-hero-picture img {
  display: block;
  width: 100%;
  height: 100%;
}

.pn-hero-picture img {
  object-fit: cover;
  object-position: 72% 48%;
}

.pn-hero-shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(0, 18, 21, 0.96) 0%, rgba(0, 24, 27, 0.82) 42%, rgba(0, 24, 27, 0.24) 74%, rgba(0, 20, 23, 0.5) 100%),
    linear-gradient(180deg, rgba(0, 15, 18, 0.36), transparent 45%, var(--color-canvas) 100%);
}

.pn-hero-content {
  position: relative;
  z-index: 2;
  align-self: center;
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(6rem, 11vw, 9rem);
}

.pn-hero-content > :not(.pn-breadcrumbs) {
  max-width: 46rem;
}

.pn-hero h1 {
  max-width: 11ch;
  margin-bottom: 1.35rem;
  font-size: clamp(3rem, 5.3vw, 5rem);
  line-height: 1.04;
  text-shadow: 0 3px 24px rgba(0, 15, 18, 0.35);
}

.pn-hero-deck {
  max-width: 41rem;
  margin-bottom: 1.7rem;
  color: var(--color-text-secondary);
  font-size: clamp(1.08rem, 1.35vw, 1.28rem);
  line-height: 1.55;
}

.pn-eyebrow {
  margin-bottom: 0.75rem;
  color: var(--p-mint-300);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.35;
  text-transform: uppercase;
}

.pn-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.pn-hero-line {
  z-index: 1;
  top: auto;
  width: 100%;
  height: 13rem;
  overflow: visible;
  opacity: 0.7;
  pointer-events: none;
}

.pn-hero-line path {
  fill: none;
  stroke: var(--p-mint-400);
  stroke-width: 1.25;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 0 0.55rem rgba(111, 238, 192, 0.65));
  stroke-dasharray: 2 7;
  animation: pn-line-drift 16s linear infinite;
}

.pn-hero--article,
.pn-hero--hub,
.pn-hero--page,
.pn-hero--listing {
  min-height: clamp(27rem, 45vw, 36rem);
}

.pn-hero--article h1,
.pn-hero--hub h1,
.pn-hero--page h1,
.pn-hero--listing h1 {
  max-width: 16ch;
  font-size: clamp(2.6rem, 4.5vw, 4.1rem);
}

.pn-hero--article .pn-hero-content,
.pn-hero--hub .pn-hero-content,
.pn-hero--page .pn-hero-content,
.pn-hero--listing .pn-hero-content {
  padding-bottom: clamp(4.5rem, 8vw, 6.5rem);
}

.pn-breadcrumbs {
  display: flex;
  max-width: 100%;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
  gap: 0.55rem;
  color: var(--color-text-secondary);
  font-size: 0.82rem;
}

.pn-breadcrumbs a {
  color: var(--p-white);
}

.pn-breadcrumbs [aria-current="page"] {
  max-width: min(42ch, 55vw);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pn-home-content {
  position: relative;
  z-index: 3;
  margin-top: -4rem;
  padding-bottom: var(--section-gap);
}

.pn-pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: var(--section-gap);
}

.pn-pillar,
.pn-feature,
.pn-card,
.pn-empty-state,
.pn-disclosure,
.pn-source-note,
.pn-article-author,
.pn-rail-note,
.pn-toc-panel {
  border: 1px solid var(--color-border);
  background: #063536;
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.pn-pillar {
  min-height: 10.75rem;
  padding: clamp(1.2rem, 2.2vw, 1.6rem);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
}

.pn-pillar-icon {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  margin-bottom: 1.5rem;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  color: var(--p-mint-300);
}

.pn-pillar h2 {
  margin-bottom: 0.4rem;
  font-size: 1.12rem;
}

.pn-pillar p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
}

.pn-feature {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-radius: var(--radius-lg);
}

.pn-feature > :not(.pn-feature-image) {
  position: relative;
  z-index: 2;
}

.pn-feature-image,
.pn-feature-image img {
  display: block;
}

.pn-feature-image {
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.pn-feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pn-feature h2 {
  max-width: 18ch;
  margin-bottom: 1rem;
}

.pn-feature p:not(.pn-eyebrow) {
  max-width: 62ch;
  color: var(--color-text-secondary);
}

.pn-feature--wide {
  display: grid;
  min-height: 27rem;
  margin-bottom: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  background: linear-gradient(130deg, rgba(6, 53, 54, 0.94), rgba(4, 41, 44, 0.85));
}

.pn-neural-panel {
  min-height: 19rem;
  margin: 0;
}

.pn-neural-panel__image,
.pn-neural-panel__image img {
  display: block;
  width: 100%;
  height: 100%;
}

.pn-neural-panel__image img {
  min-height: 19rem;
  border-radius: calc(var(--radius-md) - 0.2rem);
  object-fit: cover;
  object-position: center;
  box-shadow: 0 1.5rem 3rem rgba(0, 12, 15, 0.2);
}

.pn-neural-panel svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.pn-neural-panel path,
.pn-neural-panel circle {
  fill: none;
  stroke: var(--p-cyan-400);
  stroke-linecap: round;
  stroke-width: 2;
  filter: drop-shadow(0 0 0.7rem rgba(112, 220, 227, 0.5));
}

.pn-neural-panel circle {
  fill: var(--p-mint-400);
  stroke: var(--p-mint-300);
}

.pn-home-mosaic {
  display: grid;
  margin-bottom: 1rem;
  grid-auto-rows: minmax(15rem, auto);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}

.pn-feature--symptoms {
  grid-column: span 7;
  grid-row: span 2;
  padding-block: clamp(2rem, 4vw, 3.5rem);
  background:
    radial-gradient(circle at 90% 12%, rgba(112, 220, 227, 0.17), transparent 17rem),
    var(--color-surface);
}

.pn-feature--symptoms .pn-feature-image {
  width: 48%;
  right: -7%;
  bottom: -16%;
  opacity: 0.58;
}

.pn-feature--symptoms .pn-feature-image img {
  aspect-ratio: 1;
}

.pn-feature--landscape,
.pn-feature--care {
  grid-column: span 5;
}

.pn-feature--landscape {
  background: #073a3a;
}

.pn-feature--landscape::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 29, 32, 0.94), rgba(0, 29, 32, 0.38));
  content: "";
}

.pn-feature--landscape .pn-feature-image {
  inset: 0;
}

.pn-feature--care {
  background: linear-gradient(145deg, rgba(13, 69, 67, 0.82), rgba(4, 38, 41, 0.95));
}

.pn-feature--care .pn-feature-image {
  width: 54%;
  right: -8%;
  bottom: -5%;
  opacity: 0.45;
}

.pn-feature--care .pn-feature-image img {
  aspect-ratio: 1.15;
}

.pn-feature--research {
  grid-column: span 12;
  min-height: 18rem;
  padding-right: min(40%, 30rem);
  background:
    radial-gradient(circle at 80% 45%, rgba(111, 238, 192, 0.18), transparent 16rem),
    linear-gradient(105deg, var(--p-teal-800), rgba(4, 47, 49, 0.9));
}

.pn-feature--research .pn-feature-image {
  width: 40%;
  right: 0;
  top: 0;
  bottom: 0;
  opacity: 0.54;
}

.pn-feature--research::after {
  position: absolute;
  width: 18rem;
  height: 18rem;
  right: 8%;
  bottom: -48%;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  box-shadow: 0 0 0 2.5rem rgba(111, 238, 192, 0.025), 0 0 0 5rem rgba(111, 238, 192, 0.018);
  content: "";
  z-index: 1;
}

.pn-chip-row {
  display: flex;
  margin: 1.5rem 0;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.pn-chip-row span {
  padding: 0.42rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(0, 26, 30, 0.46);
  color: var(--color-text-secondary);
  font-size: 0.83rem;
}

.pn-text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--p-mint-300);
  font-weight: 750;
  text-decoration: none;
}

a.pn-text-link:hover,
.pn-reading-copy a:hover {
  text-decoration: underline;
}

.pn-feature--closing {
  display: grid;
  min-height: 23rem;
  margin-block: var(--section-gap) 1rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(17rem, 0.85fr);
  align-items: center;
  background: linear-gradient(115deg, rgba(5, 57, 57, 0.96), rgba(0, 28, 32, 0.98));
}

.pn-closing-art {
  position: relative;
  min-height: 17rem;
}

.pn-closing-photo,
.pn-closing-photo img {
  display: block;
}

.pn-closing-photo {
  position: absolute;
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: 0 1.5rem 3rem rgba(0, 12, 15, 0.3);
}

.pn-closing-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pn-closing-photo--one {
  width: 68%;
  height: 74%;
  right: 3%;
  top: 3%;
}

.pn-closing-photo--two {
  width: 44%;
  height: 46%;
  left: 0;
  bottom: 0;
}

.pn-article-visual {
  margin: clamp(1.5rem, 3vw, 2.6rem) 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.pn-article-visual__image,
.pn-article-visual__image img {
  display: block;
  width: 100%;
}

.pn-article-visual__image img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.pn-orb {
  position: absolute;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(165, 255, 226, 0.3), rgba(61, 213, 173, 0.03) 60%);
  box-shadow: inset 0 0 2rem rgba(112, 220, 227, 0.1), var(--glow-mint);
}

.pn-orb--one {
  width: 10rem;
  height: 10rem;
  right: 18%;
  top: 8%;
}

.pn-orb--two {
  width: 5rem;
  height: 5rem;
  right: 2%;
  bottom: 8%;
}

.pn-orb--three {
  width: 3.25rem;
  height: 3.25rem;
  left: 20%;
  bottom: 15%;
}

.pn-home-approach {
  display: grid;
  padding: clamp(2rem, 4vw, 3.5rem) 0;
  grid-template-columns: minmax(16rem, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(2rem, 5vw, 5rem);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.pn-home-approach h2,
.pn-home-approach p {
  margin-bottom: 0;
}

.pn-home-approach > p {
  color: var(--color-text-secondary);
  font-size: 1.08rem;
}

.pn-reading-progress {
  position: sticky;
  z-index: 40;
  top: 0;
  width: 100%;
  height: 0.25rem;
  background: rgba(0, 36, 39, 0.92);
}

.pn-reading-progress-fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--p-cyan-400), var(--p-mint-400));
  box-shadow: 0 0 0.7rem rgba(111, 238, 192, 0.55);
}

.pn-article-meta {
  display: flex;
  padding-block: 1rem;
  flex-wrap: wrap;
  gap: 0.45rem 1.2rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.pn-article-meta span + span::before {
  margin-right: 1.2rem;
  color: var(--p-mint-500);
  content: "•";
}

.pn-article-layout {
  display: grid;
  padding-block: 1.25rem clamp(2.25rem, 5vw, 4.5rem);
  grid-template-columns: minmax(0, 1fr) minmax(16.25rem, 28%);
  align-items: start;
  gap: clamp(1rem, 2.4vw, 1.5rem);
}

.pn-article {
  min-width: 0;
}

.pn-reading-copy {
  max-width: 72ch;
  color: var(--color-text-secondary);
}

.pn-feature-copy,
.pn-hub-list,
.pn-entry-content {
  min-width: 0;
}

.pn-reading-copy > :first-child {
  margin-top: 0;
}

.pn-reading-copy h2,
.pn-reading-copy h3,
.pn-reading-copy h4 {
  scroll-margin-top: 2rem;
}

.pn-reading-copy h2 {
  margin: clamp(2.5rem, 5vw, 4rem) 0 1rem;
}

.pn-reading-copy h3 {
  margin: 2rem 0 0.75rem;
}

.pn-reading-copy p,
.pn-reading-copy li {
  max-width: 72ch;
}

.pn-reading-copy p,
.pn-reading-copy ul,
.pn-reading-copy ol,
.pn-reading-copy figure,
.pn-reading-copy blockquote {
  margin-bottom: 1.35rem;
}

.pn-reading-copy a {
  overflow-wrap: anywhere;
  font-weight: 650;
}

.pn-reading-copy ul,
.pn-reading-copy ol {
  padding-left: 1.4rem;
}

.pn-reading-copy li {
  margin-bottom: 0.55rem;
  padding-left: 0.25rem;
}

.pn-reading-copy li::marker {
  color: var(--p-mint-400);
  font-weight: 800;
}

.pn-reading-copy img {
  border-radius: var(--radius-md);
}

.pn-reading-copy figcaption {
  margin-top: 0.6rem;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.pn-article-rail {
  position: sticky;
  top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.pn-toc-panel,
.pn-rail-note {
  padding: 1.15rem;
  border-radius: var(--radius-md);
}

.pn-toc-panel summary {
  min-height: 2.75rem;
  padding: 0.55rem 0;
  color: var(--p-white);
  font-weight: 750;
  cursor: pointer;
}

.pn-toc-panel ol {
  margin: 0.55rem 0 0;
  padding: 0;
  list-style: none;
}

.pn-toc-panel li + li {
  margin-top: 0.25rem;
}

.pn-toc-panel a {
  display: block;
  padding: 0.35rem 0.5rem;
  border-left: 2px solid transparent;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
  text-decoration: none;
}

.pn-toc-panel a:hover,
.pn-toc-panel a[aria-current="location"] {
  border-left-color: var(--p-mint-400);
  color: var(--p-white);
}

.pn-toc-subitem a {
  padding-left: 1.2rem;
  font-size: 0.81rem;
}

.pn-rail-note h2 {
  margin-bottom: 0.55rem;
  font-size: 1.05rem;
}

.pn-rail-note p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
}

.pn-demo-banner {
  margin-bottom: 1.5rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(255, 194, 185, 0.65);
  border-radius: var(--radius-sm);
  background: rgba(102, 34, 33, 0.34);
  color: var(--color-error);
}

.pn-source-note,
.pn-article-author {
  max-width: 72ch;
  margin-top: 2rem;
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  border-radius: var(--radius-md);
}

.pn-source-note h2,
.pn-article-author h2 {
  margin-bottom: 0.65rem;
  font-size: 1.3rem;
}

.pn-source-note p,
.pn-article-author p {
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}

.pn-related {
  margin-top: var(--section-gap);
}

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

.pn-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  transition: transform 220ms ease, border-color 220ms ease;
}

.pn-card:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-3px);
}

.pn-card-media {
  display: block;
  aspect-ratio: 10 / 7;
  overflow: hidden;
  background: var(--p-teal-700);
}

.pn-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.pn-card:hover .pn-card-media img {
  transform: scale(1.025);
}

.pn-card-media--placeholder {
  background:
    linear-gradient(140deg, rgba(0, 26, 30, 0.16), rgba(0, 26, 30, 0.72)),
    url("../images/hero-placeholder.svg") center / cover;
}

.pn-card-body {
  padding: 1.25rem;
}

.pn-card-body h3 {
  margin-bottom: 0.65rem;
}

.pn-card-body h3 a {
  color: var(--p-white);
  text-decoration: none;
}

.pn-card-body > p:not(.pn-eyebrow) {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

.pn-card-body .pn-text-link {
  font-size: 0.88rem;
}

.pn-hub-layout,
.pn-listing,
.pn-simple-page {
  padding-block: var(--section-gap);
}

.pn-hub-intro {
  display: grid;
  margin-bottom: var(--section-gap);
  grid-template-columns: minmax(15rem, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.pn-hub-intro > .pn-reading-copy {
  padding-top: 0.2rem;
}

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

.pn-section-heading h2,
.pn-listing > h2 {
  margin-bottom: 0;
}

.pn-empty-state,
.pn-disclosure {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-radius: var(--radius-md);
}

.pn-empty-state p,
.pn-disclosure p {
  margin-bottom: 0;
  color: var(--color-text-secondary);
}

.pn-disclosure {
  margin-top: var(--section-gap);
  border-color: var(--color-border-strong);
}

.pn-disclosure h2 {
  font-size: 1.35rem;
}

.pn-listing > h2,
.pn-search-form-wrap {
  margin-bottom: 1.5rem;
}

.pn-search-form {
  max-width: 42rem;
}

.pn-search-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.pn-search-form > div {
  display: flex;
  gap: 0.65rem;
}

.pn-search-form input {
  min-width: 0;
  min-height: 3rem;
  flex: 1;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--p-teal-800);
}

.pn-search-form input::placeholder {
  color: var(--color-text-muted);
  opacity: 1;
}

.navigation.pagination {
  margin-top: 2rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-numbers {
  display: grid;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.4rem;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.page-numbers.current {
  border-color: var(--p-mint-400);
  background: var(--p-mint-400);
  color: var(--color-action-text);
}

/* Gutenberg longform modules */
.pnp-pattern {
  max-width: 72ch;
  margin-block: clamp(2rem, 4vw, 3.5rem);
}

.pnp-pattern :where(h2, h3):first-child {
  margin-top: 0;
}

.pnp-pattern--intro .pnp-pattern__lead {
  color: var(--p-white);
  font-size: clamp(1.12rem, 1.7vw, 1.3rem);
  line-height: 1.55;
}

.pnp-pattern--text-section,
.pnp-pattern--references {
  padding-block: 0.5rem;
}

.pnp-pattern--takeaways,
.pnp-pattern--fact,
.pnp-pattern--did-you-know,
.pnp-pattern--expert-note,
.pnp-pattern--patient-perspective,
.pnp-pattern--research-highlight,
.pnp-pattern--evidence-summary,
.pnp-pattern--download,
.pnp-pattern--newsletter,
.pnp-pattern--community-cta,
.pnp-pattern--end-summary,
.pnp-pattern--warning,
.pnp-pattern--pull-quote,
.pnp-pattern--pros-cons,
.pnp-pattern--benefits-risks,
.pnp-pattern--icon-grid,
.pnp-pattern--related {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.pnp-pattern--takeaways,
.pnp-pattern--end-summary {
  border-color: var(--color-border-strong);
  background: linear-gradient(135deg, rgba(13, 69, 67, 0.86), rgba(6, 53, 54, 0.84));
}

.pnp-pattern--warning {
  border-color: rgba(255, 194, 185, 0.55);
  background: rgba(76, 35, 34, 0.42);
}

.pnp-pattern--warning h2,
.pnp-pattern--warning h3 {
  color: var(--color-error);
}

.pnp-pattern--fact,
.pnp-pattern--research-highlight {
  border-left: 0.28rem solid var(--p-cyan-400);
}

.pnp-pattern--did-you-know,
.pnp-pattern--expert-note {
  border-left: 0.28rem solid var(--p-mint-400);
}

.pnp-pattern--pull-quote .wp-block-quote {
  margin: 0;
  padding-left: 1.25rem;
  border-left: 0.2rem solid var(--p-mint-400);
}

.pnp-pattern--pull-quote .wp-block-quote p {
  color: var(--p-white);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.45;
}

.pnp-pattern--pull-quote cite,
.pnp-pattern__source,
.pnp-pattern__caption {
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.pnp-pattern__columns,
.pnp-pattern--text-image .wp-block-columns {
  display: flex;
  margin-bottom: 0;
  gap: clamp(1rem, 3vw, 2rem);
}

.pnp-pattern__columns > .wp-block-column,
.pnp-pattern--text-image .wp-block-column {
  min-width: 0;
  flex: 1;
}

.pnp-pattern--image-left .wp-block-column:first-child,
.pnp-pattern--image-right .wp-block-column:last-child {
  flex-basis: 42%;
}

.pnp-pattern__media-placeholder {
  display: grid;
  min-height: 15rem;
  padding: 1.25rem;
  place-items: center;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background:
    linear-gradient(rgba(0, 26, 30, 0.72), rgba(0, 26, 30, 0.72)),
    url("../images/hero-placeholder.svg") center / cover;
  text-align: center;
}

.pnp-pattern__media-placeholder p {
  max-width: 34ch;
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.pnp-pattern--wide-image {
  max-width: none;
}

.pnp-pattern--wide-image .pnp-pattern__media-placeholder {
  min-height: clamp(17rem, 42vw, 28rem);
}

.pnp-pattern__icon-card,
.pnp-pattern__pros,
.pnp-pattern__cons,
.pnp-pattern__benefits,
.pnp-pattern__risks,
.pnp-pattern__related-item {
  height: 100%;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(0, 36, 39, 0.55);
}

.pnp-pattern__icon-card h3,
.pnp-pattern__pros h3,
.pnp-pattern__cons h3,
.pnp-pattern__benefits h3,
.pnp-pattern__risks h3,
.pnp-pattern__related-item h3 {
  margin-top: 0;
}

.pnp-pattern--timeline ol {
  padding-left: 0;
  counter-reset: pn-step;
  list-style: none;
}

.pnp-pattern--timeline li {
  position: relative;
  min-height: 3.25rem;
  padding: 0.7rem 0 1rem 3.5rem;
  border-left: 1px solid var(--color-border-strong);
  counter-increment: pn-step;
}

.pnp-pattern--timeline li::before {
  position: absolute;
  top: 0.45rem;
  left: -1.3rem;
  display: grid;
  width: 2.6rem;
  height: 2.6rem;
  place-items: center;
  border: 1px solid var(--p-mint-400);
  border-radius: 50%;
  background: var(--p-teal-800);
  color: var(--p-mint-300);
  content: counter(pn-step);
  font-weight: 800;
}

.pnp-pattern--checklist ul {
  padding-left: 0;
  list-style: none;
}

.pnp-pattern--checklist li {
  position: relative;
  padding-left: 2rem;
}

.pnp-pattern--checklist li::before {
  position: absolute;
  left: 0;
  color: var(--p-mint-400);
  content: "✓";
  font-weight: 800;
}

.wp-block-table {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  scrollbar-color: var(--p-mint-500) var(--p-ink-900);
}

.pnp-pattern--comparison-table {
  max-width: none;
}

.wp-block-table table {
  width: 100%;
  min-width: 38rem;
  border-collapse: collapse;
}

.wp-block-table th,
.wp-block-table td {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.wp-block-table th {
  background: var(--p-teal-700);
  color: var(--p-white);
}

.wp-block-details {
  border-top: 1px solid var(--color-border);
}

.pnp-pattern--faq > .wp-block-details:first-of-type {
  margin-top: 1rem;
}

.wp-block-details:last-child {
  border-bottom: 1px solid var(--color-border);
}

.wp-block-details summary {
  min-height: 3rem;
  padding: 0.75rem 0;
  color: var(--p-white);
  font-weight: 750;
  cursor: pointer;
}

.wp-block-details > p {
  padding: 0 1rem 1rem;
}

.pn-site-footer {
  padding-top: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--color-border);
  background: #001518;
}

.pn-footer-grid {
  display: grid;
  padding-bottom: 3rem;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
}

.pn-footer-brand {
  font-size: 1.2rem;
  font-weight: 800;
}

.pn-footer-grid h2 {
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.pn-footer-grid p {
  max-width: 36ch;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.pn-footer-grid .pn-nav-list {
  display: grid;
  gap: 0;
}

.pn-footer-grid .pn-nav-list a,
.pn-footer-legal {
  min-height: 2.3rem;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.pn-footer-legal {
  display: inline-flex;
  margin-right: 0.8rem;
  align-items: center;
}

.pn-footer-bottom {
  display: flex;
  min-height: 4rem;
  padding-block: 1rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.76rem;
}

@keyframes pn-line-drift {
  to { stroke-dashoffset: -72; }
}

/* Reading, trust, discovery and utility component contracts. */
.pn-header-inner--editorial { display: flex; }
.pn-header-inner--editorial .pn-mobile-menu > summary,
.pn-header-inner--editorial .pn-search-control { min-width: var(--tap-target); min-height: var(--tap-target); }
.pn-header-inner--editorial .pn-language-switcher a { min-height: var(--tap-target); max-width: min(18rem, calc(100vw - 9rem)); line-height: 1.3; white-space: normal; overflow-wrap: anywhere; }

.pn-hero--hub, .pn-hero--page, .pn-hero--listing { min-height: clamp(19rem, 28vw, 25rem); }
.pn-hero--hub h1, .pn-hero--page h1, .pn-hero--listing h1 { max-width: 24ch; font-size: clamp(2rem, 3.6vw, 3.25rem); }
.pn-hero.pn-hero--utility { min-height: 0; border-bottom: 1px solid var(--color-border); background: radial-gradient(circle at 90% 8%, rgba(61,213,173,.09), transparent 22rem), var(--color-reading); }
.pn-hero--utility .pn-hero-content { width: min(100% - (2 * var(--gutter)), 80rem); align-self: stretch; padding-block: 1.5rem var(--space-utility); }
.pn-hero--utility h1 { max-width: 28ch; overflow-wrap: anywhere; margin-bottom: .55rem; font-size: clamp(1.9rem, 3.2vw, 2.75rem); line-height: 1.12; }
.pn-hero--utility .pn-hero-deck { max-width: 62ch; margin-bottom: 0; font-size: var(--font-size-utility); line-height: 1.55; }
.pn-hero.pn-hero--reading { min-height: 0; grid-template-columns: minmax(0,1.08fr) minmax(17rem,.82fr); align-items: stretch; background: var(--color-reading); }
.pn-hero--reading .pn-hero-art { position: relative; z-index: 0; grid-column: 2; grid-row: 1; min-width: 0; margin: 1.5rem var(--gutter) 2rem 0; overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-md); max-height: 22rem; }
.pn-hero--reading .pn-hero-image, .pn-hero--reading .pn-hero-picture, .pn-hero--reading .pn-hero-picture img { width: 100%; height: 100%; min-height: 0; object-fit: cover; object-position: center 48%; }
.pn-hero--reading .pn-hero-content { width: auto; max-width: none; grid-column: 1; grid-row: 1; align-self: center; margin-inline: var(--gutter); padding-block: 1.5rem 2rem; }
.pn-hero--reading h1 { max-width: 21ch; overflow-wrap: anywhere; margin-bottom: .8rem; font-size: clamp(2.35rem, 4vw, 3.6rem); line-height: 1.08; }
.pn-hero--reading .pn-hero-deck { max-width: 50ch; margin-bottom: 0; font-size: var(--font-size-utility); }

.pn-article-trust { display: grid; margin-bottom: 0; padding-block: .5rem 1rem; gap: .4rem 1.25rem; border-bottom: 1px solid var(--color-border); }
.pn-article-trust > * { max-width: 72ch; }
.pn-article-trust .pn-article-meta { display: flex; padding: 0; gap: .35rem 1rem; border: 0; font-size: var(--font-size-metadata); }
.pn-trust-summary { display: grid; margin: 0; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .65rem 1.5rem; }
.pn-trust-summary > div { min-width: 0; }
.pn-trust-summary dt { color: var(--color-text-muted); font-size: var(--font-size-metadata); font-weight: 650; }
.pn-trust-summary dd { margin: .12rem 0 0; color: var(--color-text); font-size: var(--font-size-metadata); line-height: 1.45; overflow-wrap: anywhere; }
.pn-trust-state { font-weight: 700; }
.pn-trust-state--pending, .pn-trust-state--needs_review, .pn-trust-state--unknown, .pn-trust-state--conflict, .pn-trust-state--demo { color: var(--color-text-secondary); }
.pn-trust-details { max-width: 72ch; color: var(--color-text-secondary); font-size: var(--font-size-metadata); }
.pn-trust-details summary, .pn-trust-sources { width: fit-content; min-height: var(--tap-target); padding-block: .5rem; color: var(--color-link); cursor: pointer; }
/* Reserve the source row while its fragment target is validated, preventing the article from jumping on reveal. */
.pn-trust-sources[hidden] { display: flex; visibility: hidden; pointer-events: none; }
.pn-reference-return { display: inline-block; margin-inline-start: .45rem; padding-inline: .25rem; font-size: .9em; text-decoration: none; }
.pn-reading-copy .pn-citation { white-space: nowrap; font-size: .94em; font-weight: 750; text-underline-offset: .18em; }
.pn-reading-copy [id^="pn-citation-"] { scroll-margin-top: 7rem; }

.pn-card-title-link::after { position: absolute; z-index: 1; inset: 0; border-radius: inherit; content: ""; }
.pn-card-title-link:hover { text-decoration: underline; text-decoration-color: var(--p-mint-400); text-underline-offset: .18em; }
.pn-card-title-link:focus-visible { outline: 0; }
.pn-card:focus-within { outline: 2px solid var(--color-focus); outline-offset: 3px; }
.pn-card:focus-within .pn-text-link { color: var(--p-mint-300); text-decoration: underline; text-underline-offset: .18em; }

.pn-home-library { padding-block: clamp(2.5rem,5vw,4rem); border-bottom: 1px solid var(--color-border); }
.pn-home-library .pn-section-heading { display: block; max-width: 66ch; margin-bottom: 1.25rem; }
.pn-home-library .pn-section-heading h2 { margin-bottom: .45rem; font-size: clamp(1.7rem,2.7vw,2.3rem); }
.pn-home-library .pn-section-heading p { margin-bottom: 0; color: var(--color-text-secondary); font-size: var(--font-size-utility); }
.pn-home-library .pn-search-form-wrap, .pn-home-library .pn-search-form { max-width: 48rem; margin-block: 1.25rem; }
.pn-guide-entry-list { display: grid; margin: 0 0 2rem; padding: 0; grid-template-columns: repeat(3,minmax(0,1fr)); gap: .75rem 1.25rem; list-style: none; }
.pn-guide-entry-list a { display: flex; min-height: var(--tap-target); align-items: center; border-bottom: 1px solid var(--color-border); color: var(--color-link); font-weight: 650; }
.pn-home-library > h3 { margin-block: 2rem 1rem; font-size: 1.15rem; }
.pn-search-listing { padding-top: var(--space-utility); }
.pn-search-entry { max-width: 66ch; margin-top: 1rem; padding-block: 1.25rem; border-top: 1px solid var(--color-border); }
.pn-correction-state { max-width: 68ch; margin-block: var(--space-utility); padding-block: 1rem; border-block: 1px solid var(--color-border); }
.pn-correction-state p { margin-bottom: 0; color: var(--color-text-secondary); font-size: var(--font-size-utility); }

.pn-toc-subsections { margin: .05rem 0 .4rem .55rem; padding-left: .65rem; border-left: 1px solid var(--color-border); }
.pn-toc-subsections > summary { min-height: 2.5rem; padding-block: .45rem; color: var(--color-text-muted); font-size: .9rem; font-weight: 650; cursor: pointer; }
.pn-toc-subsections[open] > summary { color: var(--p-white); }
.pn-toc-subsections > ol { margin: .15rem 0 .35rem; padding: 0; }



/* Selection surfaces use editorial rows; reading-related cards retain imagery. */
.pn-listing { padding-block: var(--space-utility) var(--section-gap); }
.pn-listing > .pn-card-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; max-width: 68rem; }
.pn-listing .pn-card { display: grid; grid-template-columns: 9rem minmax(0, 1fr); padding-block: 1.25rem; border: 0; border-bottom: 1px solid var(--color-border); border-radius: 0; background: transparent; box-shadow: none; transform: none; }
.pn-listing .pn-card-media { aspect-ratio: 4 / 3; align-self: start; border-radius: var(--radius-sm); }
.pn-listing .pn-card-body { padding: 0 0 0 1.5rem; }
.pn-listing .pn-card-body h3 { font-size: clamp(1.25rem, 1.8vw, 1.55rem); }
.pn-listing .pn-card-body > p { margin-bottom: .65rem; }
.pn-listing .polyneuropathy-ad { grid-column: 1 / -1; }
.pn-hero--reading .pn-breadcrumbs, .pn-hero--utility .pn-breadcrumbs { margin-bottom: 1.25rem; }
.pn-breadcrumbs { flex-wrap: wrap; }
.pn-trust-details p { margin-block: .5rem; }
.pn-reference-return { min-height: 2.75rem; padding-block: .5rem; }
.pn-reading-copy li[id] { scroll-margin-top: 2rem; }
.pn-table-scroll-note { margin-block: 0 .5rem; color: var(--color-text-muted); font-size: var(--font-size-metadata); }

@media (max-width: 67rem) {
  .pn-desktop-nav,
  .pn-header-cta {
    display: none;
  }

  .pn-header-actions {
    margin-left: auto;
  }

  .pn-mobile-menu {
    display: block;
  }

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

@media (max-width: 56.25rem) {
  .pn-article-layout {
    display: flex;
    flex-direction: column;
  }

  .pn-article-rail {
    position: static;
    width: 100%;
    order: 1;
  }

  .pn-article {
    width: 100%;
    order: 2;
  }

  .pn-article-rail > :not(.pn-toc-panel):not(.pn-article-tools):not(.polyneuropathy-ad) {
    display: none;
  }

  .pn-toc-panel {
    padding: 0.65rem 1rem;
  }

  .pn-feature--wide,
  .pn-feature--closing {
    grid-template-columns: 1fr;
  }

  .pn-feature--wide {
    min-height: 0;
  }

  .pn-neural-panel {
    min-height: 14rem;
  }

  .pn-closing-art {
    min-height: 12rem;
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: clamp(1.1rem, 4vw, 1.5rem);
    --header-height: 7rem;
  }

  .pn-brand small {
    display: none;
  }

  .pn-hero {
    min-height: 38rem;
  }

  .pn-hero--article,
  .pn-hero--hub,
  .pn-hero--page,
  .pn-hero--listing {
    min-height: 31rem;
  }

  .pn-hero h1,
  .pn-hero--article h1,
  .pn-hero--hub h1,
  .pn-hero--page h1,
  .pn-hero--listing h1 {
    font-size: clamp(2.35rem, 9vw, 3.35rem);
  }

  .pn-hero-image {
    object-position: 62% 50%;
  }

  .pn-hero-picture img {
    object-position: 68% 50%;
  }

  .pn-hero-shade {
    background:
      linear-gradient(90deg, rgba(0, 18, 21, 0.95), rgba(0, 24, 27, 0.62) 75%, rgba(0, 24, 27, 0.45)),
      linear-gradient(180deg, rgba(0, 15, 18, 0.35), transparent 35%, var(--color-canvas));
  }

  .pn-breadcrumbs {
    margin-bottom: 2rem;
  }

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

  .pn-pillar {
    min-height: 9.5rem;
  }

  .pn-home-mosaic {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .pn-feature--symptoms,
  .pn-feature--landscape,
  .pn-feature--care,
  .pn-feature--research {
    min-height: 17rem;
    padding-right: clamp(1.5rem, 3vw, 2.5rem);
    grid-column: auto;
    grid-row: auto;
  }

  .pn-home-approach,
  .pn-hub-intro {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pn-article-meta span {
    width: 100%;
  }

  .pn-article-meta span + span::before {
    display: none;
  }

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

  .pnp-pattern__columns,
  .pnp-pattern--text-image .wp-block-columns {
    flex-direction: column;
  }

  .pnp-pattern--image-right .wp-block-column:last-child {
    order: -1;
  }

  .pn-footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pn-footer-grid > :first-child {
    grid-column: 1 / -1;
  }

  .pn-header-inner--editorial { display: grid; padding-block: .4rem; grid-template-columns: minmax(0,1fr); align-content: center; gap: .2rem; }
  .pn-header-inner--editorial .pn-brand { grid-row: 1; min-height: var(--tap-target); gap: .45rem; }
  .pn-header-inner--editorial .pn-header-actions { width: 100%; min-width: 0; min-height: var(--tap-target); grid-row: 2; margin-left: 0; justify-content: space-between; gap: .65rem; }
  .pn-header-inner--editorial .pn-language-switcher { min-width: 0; margin-right: auto; }
  .pn-header-inner--editorial .pn-search-control, .pn-header-inner--editorial .pn-mobile-menu > summary { width: var(--tap-target); min-width: var(--tap-target); height: var(--tap-target); min-height: var(--tap-target); }
  .pn-hero.pn-hero--reading { min-height: 0; grid-template-columns: minmax(0,1fr); grid-template-rows: auto auto; }
  .pn-hero--reading .pn-hero-content { grid-column: 1; grid-row: 1; margin-inline: var(--gutter); padding-block: 1.2rem 1.25rem; }
  .pn-hero--reading .pn-hero-art { grid-column: 1; grid-row: 2; height: clamp(9rem,34vw,14rem); margin: 0 var(--gutter) 1.25rem; }
  .pn-hero--reading h1 { max-width: 20ch; font-size: clamp(2rem,7.6vw,2.8rem); }
  .pn-hero--utility .pn-hero-content { padding-block: 1rem 1.35rem; }

}

@media (max-width: 30rem) {
  .pn-listing .pn-card { grid-template-columns: 4.75rem minmax(0, 1fr); gap: .85rem; }
  .pn-listing .pn-card-body { padding: 0; }
  .pn-header-inner--editorial .pn-brand strong { max-width: none; font-size: 1rem; }
  .pn-header-inner--editorial .pn-brand-symbol { width: 1.85rem; }
  .pn-brand-symbol {
    width: 1.85rem;
  }

  .pn-brand strong {
    font-size: 0.86rem;
  }

  .pn-header-actions {
    gap: 0.4rem;
  }

  .pn-actions,
  .pn-search-form > div {
    display: grid;
  }

  .pn-actions .pn-button,
  .pn-search-form .pn-button {
    width: 100%;
  }

  .pn-pillar-grid {
    grid-template-columns: 1fr;
  }

  .pn-pillar {
    min-height: 0;
  }

  .pn-neural-panel {
    min-height: 11rem;
  }

  .pn-footer-grid {
    grid-template-columns: 1fr;
  }

  .pn-footer-grid > :first-child {
    grid-column: auto;
  }

  .pn-footer-bottom {
    display: grid;
  }
}

@media (max-width: 390px) {
  .pn-hero-content {
    padding-bottom: 5.5rem;
  }

  .pn-feature,
  .pnp-pattern--takeaways,
  .pnp-pattern--fact,
  .pnp-pattern--warning,
  .pnp-pattern--end-summary {
    padding-inline: 1.15rem;
  }
}

@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 (forced-colors: active) {
  .pn-button,
  .pn-pillar,
  .pn-feature,
  .pn-card,
  .pnp-pattern {
    border: 1px solid CanvasText;
  }

  .pn-hero-line,
  .pn-closing-art {
    display: none;
  }
}

@media (max-width: 30rem) {
  .pn-pillar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pn-pillar { min-height: 10rem; padding: 1rem; }
  .pn-pillar h2 { font-size: 1rem; }
  .pn-pillar p { font-size: .86rem; }
}
.polyneuropathy-ad {
  margin-block: 1.5rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  overflow: hidden;
}
.polyneuropathy-ad-label {
  display: block;
  margin-bottom: .75rem;
  color: var(--color-text-muted);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.polyneuropathy-ad-content { max-width: 100%; }
/* A long editorial table of contents remains reachable in the sticky rail. */
@media (min-width: 901px) {
  .pn-article-rail {
    align-self: start;
    max-height: calc(100vh - 3rem);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
}

/* Pre-content Gutenberg pattern additions; aligned with DESIGN_SYSTEM.md. */
.pnp-pattern__label {
  margin-block: 0 0.65em;
  color: var(--p-white);
  font-size: 1.05rem;
  font-weight: 750;
  line-height: 1.3;
}

.pnp-pattern--important,
.pnp-pattern--medical-review {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.pnp-pattern--important {
  border-left: 0.28rem solid var(--p-cyan-400);
}

.pnp-pattern--medical-review {
  border-left: 0.28rem solid var(--p-mint-400);
}

.pnp-pattern--sources {
  padding-block: 0.5rem;
}

.pnp-pattern--patient-perspective .pnp-pattern__label {
  color: var(--p-cyan-400);
}

.pnp-pattern__media-placeholder .wp-block-image {
  width: 100%;
  margin: 0;
}

.pnp-pattern__media-placeholder .wp-block-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.pnp-pattern--comparison-table .wp-block-table table {
  min-width: 32rem;
}

@media (max-width: 390px) {
  .pnp-pattern--important,
  .pnp-pattern--medical-review {
    padding-inline: 1.15rem;
  }
}

/* Pre-content article shell and visual-gap corrections. */
.admin-bar .pn-site-header { top: 0; }
.admin-bar .pn-reading-progress { top: 32px; }
.pn-hero--home { min-height: 35rem; }
.pn-brand strong { font-size: clamp(1rem, 1.3vw, 1.18rem); }
.pn-pillar {
  display: grid;
  min-height: 9.5rem;
  grid-template-columns: 2.35rem minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  gap: 0 0.85rem;
  align-content: center;
}
.pn-pillar-icon { grid-row: 1 / 3; margin-bottom: 0; }
.pn-pillar h2 { align-self: end; }
.pn-feature--wide { min-height: 22rem; }
.pn-neural-panel { min-height: 14rem; }
.pn-article { grid-column: 1; grid-row: 1; }
.pn-article-rail { grid-column: 2; grid-row: 1; }
.pn-toc-panel[hidden], .pn-article-tools[hidden] { display: none; }
.pn-toc-panel ol ol { margin: 0.15rem 0 0.35rem 0.7rem; padding-left: 0.45rem; border-left: 1px solid var(--color-border); }
.pn-toc-panel ol ol a { font-size: 0.9rem; color: var(--color-text-muted); }
.pn-toc-panel a:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.pn-article-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}
.pn-article-tools button {
  min-height: 2.75rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--p-teal-800);
  color: var(--p-white);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
}
.pn-article-tools button:hover, .pn-article-tools button[aria-pressed="true"] { border-color: var(--p-mint-400); background: var(--p-teal-700); }
.pn-article-tools button:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.pn-tool-status { width: 100%; min-height: 1.2em; margin: 0; color: var(--color-text-secondary); font-size: 0.8rem; }
.pn-reading-copy h2, .pn-reading-copy h3, .pn-reading-copy h4 { scroll-margin-top: 7rem; }
@media (max-width: 900px) {
  .pn-article-layout { gap: 0.75rem; padding-top: 1.1rem; }
  .pn-article-rail { order: 1; }
  .pn-article { order: 2; }
  .pn-article-tools { margin-top: 0.5rem; }
}
@media (max-width: 782px) {
  .admin-bar .pn-reading-progress { top: 46px; }
  .pn-hero--article { min-height: 0; }
  .pn-hero--article .pn-hero-content { padding-top: 1rem; padding-bottom: 1.5rem; }
  .pn-hero--article .pn-breadcrumbs { margin-bottom: 1rem; }
  .pn-article-meta { padding-block: 0.65rem; gap: 0.35rem 0.8rem; }
  .pn-article-meta span { width: auto; }
  .pn-reading-copy h2, .pn-reading-copy h3, .pn-reading-copy h4 { scroll-margin-top: 9rem; }
}
@media (max-width: 480px) {
  .pn-pillar { grid-template-columns: 1fr; grid-template-rows: auto; min-height: 0; padding: 1rem; }
  .pn-pillar-icon { grid-row: auto; margin-bottom: 0.7rem; }
  .pn-pillar h2 { align-self: auto; }
  .pn-article-tools button { flex: 1 1 45%; }
  .pn-feature--wide { min-height: 0; }
  .pn-neural-panel { min-height: 9rem; }
}
@media (max-width: 640px) {
  .pn-reading-copy,
  .pnp-pattern--references li {
    min-width: 0;
    overflow-wrap: anywhere;
  }
  table.pn-responsive-table {
    overflow: visible;
    border: 0;
    background: transparent;
  }
  table.pn-responsive-table,
  table.pn-responsive-table tbody,
  table.pn-responsive-table tr,
  table.pn-responsive-table td {
    display: block;
    width: 100%;
  }
  table.pn-responsive-table { min-width: 0; }
  table.pn-responsive-table thead {
    display: block;
    position: absolute;
    width: 1px;
    max-width: 1px;
    height: 1px;
    max-height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }
  table.pn-responsive-table thead tr,
  table.pn-responsive-table thead th {
    display: block;
    width: 1px;
    min-width: 0;
    max-width: 1px;
    height: 1px;
    min-height: 0;
    max-height: 1px;
    margin: 0;
    padding: 0;
    overflow: hidden;
    border: 0;
    font-size: 0;
    line-height: 0;
    white-space: normal;
  }
  table.pn-responsive-table tr {
    margin-bottom: 1rem;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
  }
  table.pn-responsive-table td {
    padding: 0.85rem 1rem;
    border: 0;
    border-bottom: 1px solid var(--color-border);
  }
  table.pn-responsive-table td:last-child { border-bottom: 0; }
  table.pn-responsive-table td::before {
    display: block;
    margin-bottom: 0.3rem;
    color: var(--color-text-muted);
    content: attr(data-label);
    font-size: var(--font-size-metadata);
    font-weight: 800;
    letter-spacing: 0;
  }
  .pn-guide-entry-list, .pn-trust-summary { grid-template-columns: minmax(0, 1fr); }
}
.pnp-pattern--product-guide { border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); }
.pnp-pattern--product-guide .pnp-pattern__product-card,
.pnp-pattern--product-guide .pnp-pattern__product-pros,
.pnp-pattern--product-guide .pnp-pattern__product-cons { padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.pnp-pattern--product-guide .wp-block-table { max-width: 100%; overflow-x: auto; }
.pnp-pattern__affiliate-disclosure { padding: 1rem 1.25rem; border: 2px solid var(--p-mint-400); border-radius: var(--radius-md); }
.pnp-pattern__product-cta { font-weight: 700; }
@media print {
  @page { margin: 16mm; }
  html, body { background: #fff !important; color: #111 !important; }
  .pn-site-header, .pn-site-footer, .pn-article-rail, .pn-reading-progress, .polyneuropathy-ad, .pn-hero-line, .pn-hero-art, .pn-hero-shade { display: none !important; }
  .pn-container, .pn-article-layout, .pn-article, .pn-reading-copy { width: 100% !important; max-width: none !important; display: block !important; padding: 0 !important; margin: 0 !important; color: #111 !important; box-shadow: none !important; }
  .pn-hero, .pn-hero-content { display: block !important; min-height: 0 !important; padding: 0 0 1rem !important; background: #fff !important; color: #111 !important; }
  .pn-hero h1, .pn-reading-copy h2, .pn-reading-copy h3, .pn-reading-copy p, .pn-reading-copy li, .pn-article-meta, .pn-article-author p, .pn-source-note p { color: #111 !important; text-shadow: none !important; }
  .pn-reading-copy a { color: #111 !important; text-decoration: underline !important; }
  .pn-reading-copy a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.75em; overflow-wrap: anywhere; }
  .pnp-pattern, .pn-source-note, .pn-article-author { background: #fff !important; color: #111 !important; box-shadow: none !important; break-inside: avoid; }
  .wp-block-table { overflow: visible !important; }
  table { width: 100%; border-collapse: collapse; }
  th, td { border: 1px solid #555 !important; color: #111 !important; }
  .wp-block-details > * { display: block !important; }
}