:root {
  color-scheme: dark;
  --bg: #08090d;
  --panel: rgba(16, 20, 28, 0.72);
  --panel-2: #111720;
  --line: rgba(214, 199, 150, 0.18);
  --line-strong: rgba(214, 199, 150, 0.36);
  --text: #ece8dc;
  --muted: #aaa492;
  --soft: #777264;
  --gold: #d4b66f;
  --cyan: #63d6c6;
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(99, 214, 198, 0.035) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(90deg, rgba(99, 214, 198, 0.025) 1px, transparent 1px) 0 0 / 64px 64px,
    radial-gradient(circle at 16% 18%, rgba(212, 182, 111, 0.34) 0 1px, transparent 2px),
    radial-gradient(circle at 72% 26%, rgba(99, 214, 198, 0.26) 0 1px, transparent 2px),
    #08090d;
  background-size: 64px 64px, 64px 64px, 360px 280px, 520px 390px, auto;
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.2rem;
  padding: 0 1.25rem;
  border-bottom: 1px solid rgba(214, 199, 150, 0.12);
  color: var(--soft);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(99, 214, 198, 0.5);
}

.surface-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}

.surface-nav__brand {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.surface-nav__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.surface-nav a {
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  padding: 0.45rem 0.65rem;
  text-decoration: none;
  text-transform: uppercase;
}

.surface-nav a:hover,
.surface-nav a:focus-visible,
.surface-nav a.is-active {
  border-color: var(--line);
  background: rgba(212, 182, 111, 0.06);
  color: var(--text);
  outline: none;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  display: grid;
  align-items: end;
  border: 1px solid rgba(214, 199, 150, 0.16);
  background: rgba(10, 13, 18, 0.72);
}

.hero__bg,
.hero__overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__bg {
  background-image: var(--hero-image);
  background-position: center;
  background-size: cover;
  opacity: 0.22;
  filter: saturate(0.72) contrast(1.08);
}

.hero__overlay {
  background:
    linear-gradient(rgba(212, 182, 111, 0.06) 1px, transparent 1px) 0 0 / 80px 80px,
    linear-gradient(90deg, rgba(212, 182, 111, 0.045) 1px, transparent 1px) 0 0 / 80px 80px,
    linear-gradient(90deg, rgba(8, 9, 13, 0.94), rgba(8, 9, 13, 0.72) 55%, rgba(8, 9, 13, 0.9));
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 790px;
  padding: 5rem 3rem;
}

.hero__kicker,
.section__kicker,
.teaser__meta {
  margin: 0 0 0.75rem;
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1;
}

h1 {
  margin: 0 0 1rem;
  font-size: 5rem;
}

h2 {
  margin-bottom: 0;
  font-size: 2.6rem;
}

.hero__subtitle {
  margin: 0 0 1.2rem;
  color: rgba(236, 232, 220, 0.9);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.28rem;
}

.hero__lede {
  max-width: 720px;
  color: var(--muted);
  font-size: 1rem;
}

.cta,
.foot__links,
.path-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  border: 1px solid rgba(214, 199, 150, 0.22);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.45rem 0.8rem;
  text-decoration: none;
  text-transform: uppercase;
}

.btn.primary {
  background: rgba(212, 182, 111, 0.12);
  border-color: var(--line-strong);
  color: var(--gold);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--gold);
  outline: none;
}

.section {
  padding: 5rem 0 0;
}

.section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.4rem;
}

.section__note {
  margin: 0;
  color: var(--muted);
}

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

.explains-principle {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.2rem;
  align-items: end;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(214, 199, 150, 0.16);
  background:
    linear-gradient(90deg, rgba(212, 182, 111, 0.12), rgba(99, 214, 198, 0.04)),
    rgba(13, 16, 22, 0.62);
  padding: 1.25rem;
}

.explains-principle span,
.explains-group__head span {
  color: var(--cyan);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.explains-principle h3 {
  margin: 0.45rem 0 0;
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-weight: 500;
  line-height: 1.1;
}

.explains-principle p {
  max-width: 760px;
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.explains-principle a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  border: 1px solid rgba(99, 214, 198, 0.32);
  padding: 0 0.9rem;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.explains-principle a:hover,
.explains-principle a:focus-visible {
  border-color: rgba(212, 182, 111, 0.52);
  color: var(--cyan);
  outline: none;
}

.article-index {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(214, 199, 150, 0.16);
  border-left: 1px solid rgba(214, 199, 150, 0.16);
}

.article-index__item {
  min-height: 380px;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  border-right: 1px solid rgba(214, 199, 150, 0.16);
  border-bottom: 1px solid rgba(214, 199, 150, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 40%),
    rgba(13, 16, 22, 0.58);
  overflow: hidden;
  padding: 1rem;
}

.article-index__copy {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.article-index__copy > span,
.article-index__copy > em {
  color: var(--cyan);
  font-size: 0.7rem;
  font-style: normal;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.article-thumb {
  --thumb-rgb: 99, 214, 198;
  --thumb-secondary-rgb: 212, 182, 111;
  aspect-ratio: 16 / 9;
  background:
    var(--thumb-image, radial-gradient(circle at 50% 48%, rgba(var(--thumb-rgb), 0.22), transparent 33%)),
    radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.44) 0 1px, transparent 1.8px),
    radial-gradient(circle at 82% 28%, rgba(var(--thumb-secondary-rgb), 0.6) 0 1px, transparent 2px),
    linear-gradient(90deg, rgba(var(--thumb-rgb), 0.09) 1px, transparent 1px),
    linear-gradient(rgba(214, 199, 150, 0.08) 1px, transparent 1px),
    linear-gradient(135deg, rgba(5, 7, 11, 0.28), rgba(18, 24, 33, 0.88));
  background-position: center, 0 0, 0 0, 0 0, 0 0, center;
  background-size: cover, 150px 90px, 210px 130px, 26px 26px, 26px 26px, cover;
  border: 1px solid rgba(214, 199, 150, 0.16);
  display: block;
  isolation: isolate;
  min-height: 126px;
  overflow: hidden;
  position: relative;
  text-decoration: none;
}

.article-thumb::before {
  animation: article-thumb-sweep 7.5s ease-in-out infinite;
  background: linear-gradient(115deg, transparent 38%, rgba(var(--thumb-rgb), 0.2) 49%, transparent 60%);
  content: "";
  inset: -40% -28%;
  pointer-events: none;
  position: absolute;
  transform: translateX(-42%);
  z-index: 1;
}

.article-thumb::after {
  border: 1px solid rgba(var(--thumb-rgb), 0.44);
  box-shadow: 0 0 28px rgba(var(--thumb-rgb), 0.16), inset 0 0 28px rgba(var(--thumb-rgb), 0.06);
  content: "";
  inset: 18px;
  pointer-events: none;
  position: absolute;
  z-index: 2;
}

.article-thumb--frame::after {
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--thumb-secondary-rgb), 0.34) 0 4px, transparent 5px),
    linear-gradient(90deg, transparent 49%, rgba(var(--thumb-rgb), 0.55) 50%, transparent 51%),
    linear-gradient(transparent 49%, rgba(var(--thumb-rgb), 0.45) 50%, transparent 51%);
  inset: 22px 28px;
}

.article-thumb--null {
  --thumb-rgb: 212, 182, 111;
  --thumb-secondary-rgb: 99, 214, 198;
}

.article-thumb--null::after {
  background:
    radial-gradient(circle, #08090d 0 30%, rgba(var(--thumb-rgb), 0.18) 31% 40%, transparent 41%),
    conic-gradient(from 30deg, transparent 0 18%, rgba(var(--thumb-secondary-rgb), 0.35) 19% 21%, transparent 22% 58%, rgba(var(--thumb-rgb), 0.44) 59% 61%, transparent 62%);
  border-radius: 50%;
  inset: 23px 34px;
}

.article-thumb--building::after {
  background:
    radial-gradient(circle at 28% 30%, rgba(var(--thumb-rgb), 0.9) 0 3px, transparent 4px),
    radial-gradient(circle at 72% 30%, rgba(var(--thumb-secondary-rgb), 0.9) 0 3px, transparent 4px),
    radial-gradient(circle at 50% 72%, rgba(255, 255, 255, 0.72) 0 3px, transparent 4px),
    linear-gradient(28deg, transparent 0 47%, rgba(var(--thumb-rgb), 0.4) 48% 50%, transparent 51%),
    linear-gradient(152deg, transparent 0 47%, rgba(var(--thumb-secondary-rgb), 0.38) 48% 50%, transparent 51%),
    linear-gradient(90deg, transparent 0 49%, rgba(255, 255, 255, 0.14) 50%, transparent 51%);
}

.article-thumb--pause::after {
  background:
    linear-gradient(90deg, transparent 35%, rgba(var(--thumb-rgb), 0.58) 36% 43%, transparent 44% 56%, rgba(var(--thumb-rgb), 0.58) 57% 64%, transparent 65%),
    repeating-radial-gradient(circle at 50% 50%, transparent 0 16px, rgba(var(--thumb-secondary-rgb), 0.18) 17px 18px);
  border-radius: 50%;
  inset: 24px 40px;
}

.article-thumb--incentive {
  --thumb-rgb: 212, 182, 111;
}

.article-thumb--incentive::after {
  background:
    radial-gradient(circle at 74% 28%, rgba(var(--thumb-rgb), 0.9) 0 4px, transparent 5px),
    linear-gradient(130deg, transparent 0 48%, rgba(var(--thumb-rgb), 0.62) 49% 51%, transparent 52%),
    linear-gradient(90deg, transparent 0 18%, rgba(255, 255, 255, 0.2) 19% 20%, transparent 21%),
    linear-gradient(transparent 0 76%, rgba(255, 255, 255, 0.18) 77% 78%, transparent 79%);
  clip-path: polygon(8% 84%, 8% 18%, 17% 18%, 17% 71%, 86% 71%, 86% 84%);
}

.article-thumb--lie::after {
  background:
    repeating-linear-gradient(165deg, rgba(var(--thumb-rgb), 0.4) 0 2px, transparent 2px 16px),
    repeating-linear-gradient(18deg, transparent 0 12px, rgba(var(--thumb-secondary-rgb), 0.28) 13px 15px);
  clip-path: polygon(6% 26%, 52% 26%, 52% 12%, 94% 50%, 52% 88%, 52% 74%, 6% 74%);
}

.article-thumb--electricity {
  --thumb-rgb: 212, 182, 111;
  --thumb-secondary-rgb: 99, 214, 198;
}

.article-thumb--electricity::after {
  background:
    linear-gradient(115deg, transparent 0 38%, rgba(var(--thumb-rgb), 0.86) 39% 45%, transparent 46%),
    linear-gradient(67deg, transparent 0 51%, rgba(var(--thumb-secondary-rgb), 0.5) 52% 55%, transparent 56%);
  clip-path: polygon(48% 4%, 30% 46%, 48% 44%, 38% 96%, 72% 36%, 53% 40%);
}

.article-thumb--memory::after {
  background:
    linear-gradient(rgba(var(--thumb-rgb), 0.2), rgba(var(--thumb-rgb), 0.2)) 18% 25% / 64% 16% no-repeat,
    linear-gradient(rgba(var(--thumb-secondary-rgb), 0.22), rgba(var(--thumb-secondary-rgb), 0.22)) 28% 48% / 56% 16% no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.14)) 13% 71% / 72% 16% no-repeat;
}

.article-thumb--bosman {
  --thumb-rgb: 99, 214, 198;
  --thumb-secondary-rgb: 212, 182, 111;
}

.article-thumb--bosman::after {
  background:
    radial-gradient(circle at 50% 50%, transparent 0 34%, rgba(var(--thumb-secondary-rgb), 0.44) 35% 36%, transparent 37%),
    linear-gradient(90deg, transparent 48%, rgba(var(--thumb-rgb), 0.62) 49% 51%, transparent 52%),
    linear-gradient(transparent 48%, rgba(var(--thumb-rgb), 0.5) 49% 51%, transparent 52%),
    linear-gradient(135deg, transparent 0 46%, rgba(var(--thumb-secondary-rgb), 0.52) 47% 49%, transparent 50%);
  border-radius: 50%;
  inset: 22px 34px;
}

.article-thumb--navigators {
  --thumb-rgb: 99, 214, 198;
  --thumb-secondary-rgb: 212, 182, 111;
}

.article-thumb--navigators::after {
  background:
    radial-gradient(circle at 23% 32%, rgba(var(--thumb-secondary-rgb), 0.88) 0 4px, transparent 5px),
    radial-gradient(circle at 77% 32%, rgba(var(--thumb-rgb), 0.88) 0 4px, transparent 5px),
    radial-gradient(circle at 50% 58%, rgba(255, 255, 255, 0.72) 0 3px, transparent 4px),
    linear-gradient(24deg, transparent 0 47%, rgba(var(--thumb-secondary-rgb), 0.42) 48% 50%, transparent 51%),
    linear-gradient(156deg, transparent 0 47%, rgba(var(--thumb-rgb), 0.42) 48% 50%, transparent 51%),
    linear-gradient(90deg, transparent 0 49%, rgba(255, 255, 255, 0.16) 50%, transparent 51%),
    linear-gradient(transparent 0 72%, rgba(var(--thumb-secondary-rgb), 0.32) 73% 75%, transparent 76%);
  clip-path: polygon(10% 22%, 50% 8%, 90% 22%, 78% 82%, 50% 94%, 22% 82%);
  inset: 20px 30px;
}

.article-thumb--agent-edge {
  --thumb-rgb: 212, 182, 111;
  --thumb-secondary-rgb: 99, 214, 198;
}

.article-thumb--agent-edge::after {
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--thumb-rgb), 0.22) 0 16%, transparent 17%),
    repeating-radial-gradient(circle at 50% 50%, transparent 0 23px, rgba(var(--thumb-secondary-rgb), 0.26) 24px 25px),
    conic-gradient(from 18deg, transparent 0 8%, rgba(var(--thumb-rgb), 0.58) 9% 11%, transparent 12% 27%, rgba(var(--thumb-secondary-rgb), 0.44) 28% 30%, transparent 31% 53%, rgba(var(--thumb-rgb), 0.46) 54% 56%, transparent 57%);
  border-radius: 50%;
  clip-path: polygon(50% 0, 86% 18%, 100% 56%, 74% 94%, 26% 94%, 0 56%, 14% 18%);
  inset: 18px 30px;
}

.article-thumb--microcosm {
  --thumb-rgb: 99, 214, 198;
  --thumb-secondary-rgb: 212, 182, 111;
}

.article-thumb--microcosm::after {
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--thumb-rgb), 0.28) 0 12%, transparent 13%),
    repeating-radial-gradient(circle at 50% 50%, transparent 0 20px, rgba(var(--thumb-secondary-rgb), 0.22) 21px 22px),
    linear-gradient(24deg, transparent 0 48%, rgba(var(--thumb-rgb), 0.46) 49% 51%, transparent 52%),
    linear-gradient(116deg, transparent 0 48%, rgba(var(--thumb-secondary-rgb), 0.34) 49% 51%, transparent 52%),
    radial-gradient(circle at 24% 28%, rgba(255, 255, 255, 0.62) 0 2px, transparent 3px),
    radial-gradient(circle at 78% 68%, rgba(var(--thumb-rgb), 0.72) 0 2px, transparent 3px);
  border-radius: 50%;
  clip-path: polygon(50% 4%, 90% 24%, 90% 76%, 50% 96%, 10% 76%, 10% 24%);
  inset: 18px 30px;
}

.article-thumb--void-agency {
  --thumb-rgb: 212, 182, 111;
  --thumb-secondary-rgb: 99, 214, 198;
  background:
    linear-gradient(90deg, rgba(5, 7, 11, 0.46), rgba(5, 7, 11, 0.08) 48%, rgba(5, 7, 11, 0.42)),
    url("ai-mucha-octowka-bootes-void/cover.jpg") center / cover no-repeat;
}

.article-thumb--void-agency::after {
  background:
    linear-gradient(90deg, transparent 0 30%, rgba(var(--thumb-rgb), 0.28) 31% 32%, transparent 33% 67%, rgba(var(--thumb-secondary-rgb), 0.24) 68% 69%, transparent 70%),
    radial-gradient(circle at 77% 50%, transparent 0 22%, rgba(var(--thumb-rgb), 0.2) 23% 24%, transparent 25%);
  inset: 12px;
}

.article-thumb--cosmos-guh {
  --thumb-rgb: 99, 214, 198;
  --thumb-secondary-rgb: 212, 182, 111;
  --thumb-image:
    linear-gradient(90deg, rgba(5, 7, 11, 0.52), rgba(5, 7, 11, 0.1) 48%, rgba(5, 7, 11, 0.72)),
    url("../esseys/guh-holographic-universe/cover.webp");
}

.article-thumb--cosmos-guh::after {
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--thumb-secondary-rgb), 0.28) 0 14%, transparent 15%),
    repeating-radial-gradient(circle at 50% 50%, transparent 0 22px, rgba(var(--thumb-rgb), 0.22) 23px 24px),
    linear-gradient(90deg, transparent 0 48%, rgba(var(--thumb-rgb), 0.46) 49% 51%, transparent 52%),
    linear-gradient(transparent 0 48%, rgba(var(--thumb-secondary-rgb), 0.34) 49% 51%, transparent 52%);
  border-radius: 50%;
  inset: 18px 34px;
}

.article-thumb--cosmos-boundary {
  --thumb-rgb: 212, 182, 111;
  --thumb-secondary-rgb: 99, 214, 198;
}

.article-thumb--cosmos-boundary::after {
  background:
    linear-gradient(90deg, transparent 0 17%, rgba(var(--thumb-rgb), 0.68) 18% 20%, transparent 21% 79%, rgba(var(--thumb-secondary-rgb), 0.55) 80% 82%, transparent 83%),
    linear-gradient(transparent 0 48%, rgba(255, 255, 255, 0.18) 49% 51%, transparent 52%),
    radial-gradient(circle at 18% 50%, rgba(var(--thumb-rgb), 0.72) 0 5px, transparent 6px),
    radial-gradient(circle at 82% 50%, rgba(var(--thumb-secondary-rgb), 0.72) 0 5px, transparent 6px),
    repeating-linear-gradient(90deg, transparent 0 20px, rgba(var(--thumb-rgb), 0.18) 21px 22px);
  clip-path: polygon(8% 18%, 92% 18%, 84% 82%, 16% 82%);
  inset: 20px 30px;
}

.article-thumb--cosmos-hologram {
  --thumb-rgb: 99, 214, 198;
  --thumb-secondary-rgb: 106, 143, 220;
}

.article-thumb--cosmos-hologram::after {
  background:
    radial-gradient(circle at 50% 50%, rgba(var(--thumb-rgb), 0.22) 0 18%, transparent 19%),
    conic-gradient(from 20deg, transparent 0 10%, rgba(var(--thumb-rgb), 0.44) 11% 13%, transparent 14% 42%, rgba(var(--thumb-secondary-rgb), 0.38) 43% 45%, transparent 46% 72%, rgba(var(--thumb-rgb), 0.36) 73% 75%, transparent 76%),
    linear-gradient(90deg, transparent 0 48%, rgba(255, 255, 255, 0.16) 49% 51%, transparent 52%),
    linear-gradient(transparent 0 48%, rgba(255, 255, 255, 0.14) 49% 51%, transparent 52%);
  border-radius: 50%;
  inset: 18px 32px;
}

a.article-thumb {
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

a.article-thumb:hover,
a.article-thumb:focus-visible {
  border-color: rgba(99, 214, 198, 0.45);
  box-shadow: 0 0 30px rgba(99, 214, 198, 0.12);
  outline: none;
  transform: translateY(-1px);
}

.article-index__item h3 {
  margin: 1rem 0 0.75rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-weight: 500;
  line-height: 1.16;
}

.article-index__item h3 a {
  text-decoration: none;
}

.article-index__item h3 a:hover,
.article-index__item h3 a:focus-visible {
  color: var(--gold);
  outline: none;
}

.article-index__item p {
  color: var(--muted);
  margin-bottom: 1rem;
}

.article-index__copy > em {
  margin-top: auto;
  color: var(--gold);
}

.article-index__item.is-pending {
  background: rgba(13, 16, 22, 0.34);
}

.article-index__item.is-pending h3,
.article-index__item.is-pending p {
  color: rgba(170, 164, 146, 0.66);
}

.article-index__item.is-pending .article-thumb {
  opacity: 0.62;
}

@keyframes article-thumb-sweep {
  0%,
  34% {
    transform: translateX(-42%);
  }

  68%,
  100% {
    transform: translateX(42%);
  }
}

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

  .article-thumb::before {
    animation: none;
    opacity: 0.34;
    transform: none;
  }

  a.article-thumb {
    transition: none;
  }
}

.explains-arc {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.4rem;
  border: 1px solid rgba(214, 199, 150, 0.16);
  background: rgba(214, 199, 150, 0.15);
}

.explains-group {
  background:
    linear-gradient(180deg, rgba(99, 214, 198, 0.045), transparent 42%),
    rgba(13, 16, 22, 0.82);
}

.explains-group__head {
  min-height: 172px;
  border-bottom: 1px solid rgba(214, 199, 150, 0.16);
  padding: 1rem;
}

.explains-group__head h3 {
  margin: 1rem 0 0;
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.36rem;
  font-weight: 500;
  line-height: 1.08;
}

.explains-group__head p {
  margin: 0.72rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.explains-row {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.75rem;
  border-bottom: 1px solid rgba(214, 199, 150, 0.12);
  padding: 0.9rem 1rem 1rem;
}

.explains-row:last-child {
  border-bottom: 0;
}

.explains-row > span {
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.explains-row h4 {
  margin: 0;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 760;
  line-height: 1.16;
}

.explains-row h4 a {
  text-decoration: none;
}

.explains-row h4 a:hover,
.explains-row h4 a:focus-visible {
  color: var(--gold);
  outline: none;
}

.explains-row p {
  margin: 0.45rem 0 0;
  color: rgba(170, 164, 146, 0.82);
  font-size: 0.8rem;
  line-height: 1.45;
}

.explains-row em {
  display: inline-flex;
  margin-top: 0.55rem;
  color: var(--cyan);
  font-size: 0.64rem;
  font-style: normal;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.explains-row.is-draft,
.explains-row.is-unlinked {
  opacity: 0.72;
}

.explains-row.is-review em {
  color: var(--gold);
}

.feature,
.callout,
.path-card {
  border: 1px solid rgba(214, 199, 150, 0.16);
  background: var(--panel);
}

.feature {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  min-height: 320px;
}

.feature:not(.feature--image) {
  display: block;
}

.feature__image {
  min-height: 100%;
  background-position: center;
  background-size: cover;
  filter: saturate(0.72) contrast(1.05);
}

.feature__content,
.callout,
.path-card {
  padding: 1.4rem;
}

.feature h3,
.path-card h3,
.callout h2 {
  margin: 0 0 0.7rem;
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-weight: 500;
  line-height: 1.18;
}

.feature p,
.essay-item p,
.callout p,
.path-card p {
  color: var(--muted);
}

.feature__sub,
.essay-item__subtitle {
  color: rgba(236, 232, 220, 0.88) !important;
}

.essay-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(214, 199, 150, 0.16);
}

.essay-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 1.5rem;
  border-bottom: 1px solid rgba(214, 199, 150, 0.16);
  padding: 1.2rem 0;
}

.essay-item__number {
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.essay-item h3 {
  margin: 0 0 0.45rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  font-weight: 500;
}

.essay-item a,
.path-card a,
.foot a {
  text-decoration: none;
}

.essay-item a:hover,
.essay-item a:focus-visible,
.path-card a:hover,
.path-card a:focus-visible,
.foot a:hover,
.foot a:focus-visible {
  color: var(--gold);
  outline: none;
}

.essay-item p {
  margin-bottom: 0.4rem;
}

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

.path-card__links a {
  color: var(--cyan);
  font-size: 0.86rem;
}

.path-card__links span,
.foot__links span {
  color: var(--soft);
}

.foot {
  margin-top: 5rem;
  border-top: 1px solid rgba(214, 199, 150, 0.16);
  padding: 1.6rem 0 0;
}

.foot__links a,
.foot__note {
  color: var(--muted);
  font-size: 0.84rem;
}

.foot__note {
  margin: 0.8rem 0 0;
}

.back-to-top {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 40;
  display: inline-grid;
  place-items: center;
  min-width: 3.2rem;
  min-height: 3.2rem;
  border: 1px solid rgba(99, 214, 198, 0.34);
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 10%, rgba(99, 214, 198, 0.18), transparent 55%),
    rgba(8, 9, 13, 0.82);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.42), inset 0 0 22px rgba(99, 214, 198, 0.06);
  color: var(--gold);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  backdrop-filter: blur(14px);
  transition: border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  border-color: rgba(212, 182, 111, 0.58);
  color: var(--cyan);
  outline: none;
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  h1 {
    font-size: 3.8rem;
  }

  .hero {
    min-height: 520px;
  }

  .hero__content {
    padding: 3.5rem 1.4rem;
  }

  .featured-grid,
  .path-list,
  .article-index,
  .explains-arc,
  .split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .explains-principle {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .surface-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .surface-nav__links {
    justify-content: flex-start;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2rem;
  }

  .feature {
    display: block;
  }

  .article-index {
    grid-template-columns: 1fr;
  }

  .explains-arc {
    grid-template-columns: 1fr;
  }

  .path-list {
    grid-template-columns: 1fr;
  }

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

  .explains-group__head {
    min-height: 0;
  }

  .feature__image {
    min-height: 220px;
  }

  .section__head,
  .essay-item {
    display: block;
  }

  .essay-item__number {
    margin-bottom: 0.6rem;
  }

  .back-to-top {
    right: max(0.85rem, env(safe-area-inset-right));
    bottom: max(0.85rem, env(safe-area-inset-bottom));
    min-width: 2.75rem;
    min-height: 2.75rem;
    font-size: 0.62rem;
  }
}