/* Single-page layout, light/dark themes, Nepal-inspired accents */

html[data-theme="dark"] {
  color-scheme: dark;
  --site-bg: #0a0e12;
  --site-bg-elevated: #10161c;
  --site-surface: #141b24;
  --site-border: rgba(255, 255, 255, 0.08);
  --site-text: #e9eef2;
  --site-muted: #9aa7b2;
  --site-accent: #6eb8a8;
  --site-accent-soft: rgba(110, 184, 168, 0.16);
  --site-peony: rgba(196, 120, 138, 0.22);
  --site-peak: #1c2834;
  --site-header-bg: rgba(10, 14, 18, 0.82);
  --site-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --site-shadow-hover: 0 20px 48px rgba(0, 0, 0, 0.42);
  --site-radius-sm: 10px;
  --site-radius-md: 14px;
  --site-radius-lg: 18px;
  --site-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --logo-filter: none;
}

html[data-theme="light"] {
  color-scheme: light;
  --site-bg: #f5f0e8;
  --site-bg-elevated: #fcf8f1;
  --site-surface: #ffffff;
  --site-border: rgba(28, 34, 40, 0.12);
  --site-text: #14202a;
  --site-muted: #465360;
  --site-accent: #256b65;
  --site-accent-soft: rgba(37, 107, 101, 0.14);
  --site-peony: rgba(174, 96, 98, 0.14);
  --site-peak: #b7c6d2;
  --site-header-bg: rgba(245, 240, 232, 0.94);
  --site-shadow: 0 20px 50px rgba(36, 42, 48, 0.09);
  --site-shadow-hover: 0 24px 56px rgba(36, 42, 48, 0.14);
  --site-radius-sm: 10px;
  --site-radius-md: 14px;
  --site-radius-lg: 18px;
  --site-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --logo-filter: invert(1) brightness(0.85) contrast(1.1);
}

body {
  background: var(--site-bg);
  color: var(--site-text);
  margin: 0;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 8px 14px;
  background: var(--site-accent);
  color: var(--site-bg);
  z-index: 100;
  font-weight: 600;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  background: var(--site-header-bg);
  border-bottom: 1px solid var(--site-border);
  transition: border-color 0.3s var(--site-ease), box-shadow 0.3s var(--site-ease);
}

.site-header.is-scrolled {
  box-shadow: 0 1px 0 var(--site-border), 0 12px 40px rgba(0, 0, 0, 0.08);
}

html[data-theme="dark"] .site-header.is-scrolled {
  box-shadow: 0 1px 0 var(--site-border), 0 16px 48px rgba(0, 0, 0, 0.35);
}

.site-header__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 540px) {
  .site-header__inner {
    flex-direction: column;
    align-items: stretch;
  }

  .site-brand {
    margin-right: 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .theme-toggle {
    position: absolute;
    top: 12px;
    right: 20px;
  }

  .site-header__inner {
    position: relative;
    padding-right: 64px;
  }
}

.site-brand {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--site-text);
  text-decoration: none;
  margin-right: auto;
}

.site-brand:hover,
.site-brand:focus-visible {
  color: var(--site-accent);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: center;
}

.site-nav a {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--site-muted);
  text-decoration: none;
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--site-ease), border-color 0.2s var(--site-ease);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--site-text);
}

.site-nav a.is-active {
  color: var(--site-accent);
  border-bottom-color: var(--site-accent);
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: var(--site-radius-sm);
  border: 1px solid var(--site-border);
  background: var(--site-surface);
  cursor: pointer;
  display: grid;
  place-items: center;
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.2s var(--site-ease), transform 0.2s var(--site-ease), background 0.2s var(--site-ease);
}

.theme-toggle:hover {
  border-color: var(--site-accent);
  background: var(--site-accent-soft);
}

.theme-toggle:active {
  transform: scale(0.96);
}

.theme-toggle__icon {
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.theme-toggle__icon--sun {
  background: radial-gradient(circle at 35% 35%, #fff6d4, #e8b44c 55%, #c4862a);
  box-shadow: 0 0 0 2px rgba(255, 200, 80, 0.25);
}

.theme-toggle__icon--moon {
  background: radial-gradient(circle at 30% 30%, #eef2f6, #8a93a0 45%, #4a5560);
  box-shadow: inset -3px -1px 0 0 rgba(255, 255, 255, 0.35);
}

html[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 0;
  transform: scale(0.6);
}

html[data-theme="dark"] .theme-toggle__icon--moon {
  opacity: 1;
  transform: scale(1);
}

html[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
  transform: scale(1);
}

html[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 0;
  transform: scale(0.6);
}

/* Main column */
.site-single {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

/* Hero */
.hero-mountain {
  position: relative;
  min-height: clamp(420px, 72vh, 640px);
  display: flex;
  align-items: flex-end;
  padding: 100px 0 56px;
  margin: 0 -20px 8px;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, var(--site-accent-soft), transparent 55%);
}

.hero-mountain__layer--peony {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 55%;
  background:
    radial-gradient(ellipse 45% 35% at 88% 42%, var(--site-peony), transparent 70%),
    radial-gradient(ellipse 30% 25% at 12% 58%, var(--site-accent-soft), transparent 65%);
  pointer-events: none;
}

.hero-mountain__range {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  color: var(--site-peak);
  pointer-events: none;
}

.hero-mountain__svg {
  display: block;
  width: 100%;
  height: auto;
}

.hero-mountain__strand {
  position: absolute;
  right: 4%;
  top: 18%;
  width: min(42%, 320px);
  color: var(--site-accent);
  opacity: 0.72;
  pointer-events: none;
  transform-origin: 60% 24%;
  will-change: transform;
  animation: molecule-swing 10s ease-in-out infinite;
}

.hero-mountain__cells {
  position: absolute;
  left: min(4%, 32px);
  bottom: 44px;
  width: min(36%, 320px);
  color: color-mix(in srgb, var(--site-accent) 72%, white 8%);
  opacity: 0.56;
  pointer-events: none;
  will-change: transform;
  animation: cluster-float 9.5s ease-in-out infinite;
}

.cell-cluster {
  width: 100%;
  height: auto;
  overflow: visible;
}

.cell-cluster__orb,
.cell-cluster__link {
  transform-box: fill-box;
  transform-origin: center;
  will-change: transform;
}

.cell-cluster circle,
.cell-cluster path {
  stroke: currentColor;
  stroke-width: 1.5;
}

.cell-cluster circle {
  fill: color-mix(in srgb, currentColor 12%, transparent);
}

.cell-cluster__nucleus {
  fill: currentColor;
  stroke: none;
  opacity: 0.9;
  animation: nucleus-pulse 2.8s ease-in-out infinite;
}

.cell-cluster__orb--1 {
  animation: cell-roll-a 7.5s ease-in-out infinite;
}

.cell-cluster__orb--2 {
  animation: cell-roll-b 6.8s ease-in-out infinite;
}

.cell-cluster__orb--3 {
  animation: cell-roll-c 8.2s ease-in-out infinite;
}

.cell-cluster__orb--4 {
  animation: cell-roll-b 7.1s ease-in-out infinite reverse;
}

.cell-cluster__orb--5 {
  animation: cell-roll-a 6.2s ease-in-out infinite reverse;
}

.cell-cluster__link--1 {
  animation: signal-sway 5.4s ease-in-out infinite;
}

.cell-cluster__link--2 {
  animation: signal-sway 6.1s ease-in-out infinite reverse;
}

.cell-cluster__link--3 {
  animation: signal-sway 4.8s ease-in-out infinite;
}

.strand-hero {
  width: 100%;
  height: auto;
}

.strand-hero__a {
  animation: strand-drift 7s ease-in-out infinite alternate;
}

.strand-hero__b {
  animation: strand-drift 8.5s ease-in-out infinite alternate-reverse;
}

@keyframes strand-drift {
  from {
    transform: translateX(-4px) rotate(-2deg);
  }

  to {
    transform: translateX(8px) rotate(3deg);
  }
}

@keyframes cluster-float {

  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }

  50% {
    transform: translate3d(10px, -8px, 0);
  }
}

@keyframes molecule-swing {

  0%,
  100% {
    transform: rotate(-6deg) translateY(0);
  }

  50% {
    transform: rotate(6deg) translateY(12px);
  }
}

@keyframes cell-roll-a {

  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }

  35% {
    transform: translate(10px, -10px) rotate(12deg);
  }

  68% {
    transform: translate(-8px, 8px) rotate(-14deg);
  }
}

@keyframes cell-roll-b {

  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }

  40% {
    transform: translate(-12px, 8px) rotate(-15deg);
  }

  70% {
    transform: translate(8px, -10px) rotate(12deg);
  }
}

@keyframes cell-roll-c {

  0%,
  100% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }

  35% {
    transform: translate(12px, -12px) rotate(10deg) scale(1.06);
  }

  68% {
    transform: translate(-10px, 8px) rotate(-12deg) scale(0.96);
  }
}

@keyframes nucleus-pulse {

  0%,
  100% {
    opacity: 0.88;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.24);
  }
}

@keyframes signal-sway {

  0%,
  100% {
    transform: translateX(0) translateY(0);
  }

  50% {
    transform: translateX(8px) translateY(-6px);
  }
}

@media (prefers-reduced-motion: reduce) {

  .hero-mountain__strand,
  .hero-mountain__cells,
  .strand-hero__a,
  .strand-hero__b,
  .cell-cluster__orb,
  .cell-cluster__link,
  .cell-cluster__nucleus {
    animation: none;
  }
}

.hero-mountain__content {
  position: relative;
  z-index: 2;
  max-width: 36rem;
  padding: 0 8px 8px;
}

.hero-mountain__eyebrow {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--site-muted);
  margin-bottom: 14px;
}

.hero-mountain__title {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(2rem, 5vw, 2.85rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  color: var(--site-text);
  font-optical-sizing: auto;
  text-wrap: balance;
}

.hero-mountain__lede {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 1.08rem;
  line-height: 1.72;
  color: color-mix(in srgb, var(--site-text) 82%, var(--site-muted));
  margin: 0 0 28px;
}

.hero-mountain__markers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.hero-mountain__markers span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--site-accent) 18%, var(--site-border));
  background: color-mix(in srgb, var(--site-surface) 78%, transparent);
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--site-text);
}

.hero-mountain__tableau {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 44rem;
}

.hero-mountain__panel {
  padding: 14px 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--site-border);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--site-surface) 92%, transparent), color-mix(in srgb, var(--site-bg-elevated) 88%, transparent));
  box-shadow: var(--site-shadow);
}

.hero-mountain__panel small {
  display: block;
  margin-bottom: 8px;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--site-accent);
}

.hero-mountain__panel strong {
  display: block;
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.02rem;
  line-height: 1.15;
  font-weight: 500;
  color: var(--site-text);
}

.hero-mountain__panel--ridge {
  transform: translateY(10px);
}

.hero-mountain__panel--signal {
  transform: translateY(18px);
}

@media (max-width: 720px) {
  .hero-mountain {
    min-height: 420px;
  }

  .hero-mountain__strand {
    width: min(50%, 220px);
    top: 14%;
  }

  .hero-mountain__cells {
    width: min(44%, 180px);
    bottom: 34px;
    opacity: 0.24;
  }

  .hero-mountain__content {
    max-width: 100%;
  }

  .hero-mountain__tableau {
    grid-template-columns: 1fr;
    max-width: 24rem;
  }

  .hero-mountain__panel--ridge,
  .hero-mountain__panel--signal {
    transform: none;
  }
}

.hero-mountain__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--site-accent);
  text-decoration: none;
  padding: 11px 22px;
  border: 1px solid color-mix(in srgb, var(--site-accent) 55%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--site-accent-soft) 65%, transparent);
  transition: background 0.25s var(--site-ease), border-color 0.25s var(--site-ease), transform 0.2s var(--site-ease);
}

.hero-mountain__cta:hover,
.hero-mountain__cta:focus-visible {
  background: var(--site-accent-soft);
  border-color: var(--site-accent);
}

.hero-mountain__cta:active {
  transform: scale(0.98);
}

@media (prefers-reduced-motion: reduce) {
  .hero-mountain__cta {
    transition: none;
  }

  .hero-mountain__cta:active {
    transform: none;
  }
}

/* Sections */
.section-block {
  position: relative;
  isolation: isolate;
  padding: 56px 0;
  border-top: 1px solid var(--site-border);
  scroll-margin-top: 72px;
}

.section-block> :not(.section-ornament) {
  position: relative;
  z-index: 1;
}

.section-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.section-block__head--editorial {
  align-items: end;
  justify-content: space-between;
  gap: 18px 28px;
}

.section-block__title {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  padding-bottom: 14px;
  color: var(--site-text);
  text-transform: none;
  position: relative;
  font-optical-sizing: auto;
}

.section-block__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 2.75rem;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--site-accent), transparent);
  opacity: 0.9;
}

.section-block__head .section-block__title {
  margin-bottom: 0;
}

.section-block__kicker {
  margin: 0 0 10px;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--site-accent);
}

.section-block__deck {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 1rem;
  color: var(--site-muted);
  line-height: 1.68;
  max-width: 52ch;
  margin: 0 0 24px;
}

.section-block__aside {
  max-width: 28ch;
  margin: 0 0 16px;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--site-muted);
}

.section-ornament {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  opacity: 0.24;
  color: color-mix(in srgb, var(--site-accent) 70%, var(--site-peony) 30%);
  will-change: transform;
}

.section-ornament svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.section-ornament path,
.section-ornament line,
.section-ornament circle,
.section-ornament ellipse,
.section-ornament rect {
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.section-ornament ellipse,
.section-ornament rect {
  fill: color-mix(in srgb, var(--site-surface) 55%, transparent);
}

.section-ornament__bead,
.section-ornament__node {
  fill: color-mix(in srgb, currentColor 18%, transparent);
}

.section-ornament__trail {
  opacity: 0.6;
  stroke-dasharray: 5 10;
}

.section-ornament__trace--b {
  opacity: 0.48;
}

.section-ornament__chain {
  opacity: 0.74;
}

.section-ornament--rna {
  top: 8px;
  right: -26px;
  width: min(24vw, 220px);
  animation: ornament-float 12s ease-in-out infinite;
}

.section-ornament--translation {
  top: 88px;
  left: -36px;
  width: min(27vw, 240px);
  animation: ornament-float 13s ease-in-out infinite reverse;
}

.section-ornament--mod {
  top: 54px;
  right: -8px;
  width: min(22vw, 210px);
  animation: ornament-float 11s ease-in-out infinite;
}

.section-ornament--network {
  top: 22px;
  left: -16px;
  width: min(22vw, 220px);
  animation: ornament-float 14s ease-in-out infinite reverse;
}

.section-ornament--notes {
  top: 26px;
  right: -10px;
  width: min(20vw, 190px);
  animation: ornament-float 10s ease-in-out infinite;
}

.section-ornament__trace,
.section-ornament__chain,
.section-ornament__trail {
  transform-box: fill-box;
  transform-origin: center;
}

.section-ornament__trace {
  animation: trace-sway 8s ease-in-out infinite;
}

.section-ornament__chain {
  animation: trace-sway 7s ease-in-out infinite reverse;
}

.section-ornament__ribosome {
  transform-box: fill-box;
  transform-origin: center;
  animation: ribosome-glide 5.8s ease-in-out infinite;
}

.section-ornament__bead {
  animation: bead-bob 4.6s ease-in-out infinite;
}

.section-ornament__bead:nth-of-type(2) {
  animation-delay: 0.45s;
}

.section-ornament__bead:nth-of-type(3) {
  animation-delay: 0.9s;
}

.section-ornament__bead:nth-of-type(4) {
  animation-delay: 1.35s;
}

.section-ornament__bead:nth-of-type(5) {
  animation-delay: 1.8s;
}

.section-ornament__spark {
  transform-box: fill-box;
  transform-origin: center;
  animation: spark-twinkle 2.8s ease-in-out infinite;
}

.section-ornament__spark--2 {
  animation-delay: 0.7s;
}

.section-ornament__spark--3 {
  animation-delay: 1.4s;
}

.section-ornament__node {
  animation: node-breathe 4.8s ease-in-out infinite;
}

.section-ornament__node:nth-of-type(2) {
  animation-delay: 0.35s;
}

.section-ornament__node:nth-of-type(3) {
  animation-delay: 0.7s;
}

.section-ornament__node:nth-of-type(4) {
  animation-delay: 1.05s;
}

.section-ornament__node:nth-of-type(5) {
  animation-delay: 1.4s;
}

.section-ornament__node:nth-of-type(6) {
  animation-delay: 1.75s;
}

@keyframes ornament-float {

  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }

  50% {
    transform: translate3d(10px, -10px, 0);
  }
}

@keyframes trace-sway {

  0%,
  100% {
    transform: translateX(0) translateY(0) rotate(0deg);
  }

  50% {
    transform: translateX(6px) translateY(-4px) rotate(2deg);
  }
}

@keyframes ribosome-glide {

  0%,
  100% {
    transform: translateX(0) scale(1);
  }

  50% {
    transform: translateX(8px) scale(1.04);
  }
}

@keyframes bead-bob {

  0%,
  100% {
    transform: translateY(0) scale(1);
  }

  50% {
    transform: translateY(-4px) scale(1.08);
  }
}

@keyframes spark-twinkle {

  0%,
  100% {
    opacity: 0.4;
    transform: scale(0.94) rotate(0deg);
  }

  50% {
    opacity: 1;
    transform: scale(1.12) rotate(8deg);
  }
}

@keyframes node-breathe {

  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.14);
  }
}

@media (max-width: 980px) {
  .section-ornament {
    opacity: 0.16;
    transform: scale(0.88);
  }

  .section-ornament--translation,
  .section-ornament--network {
    left: -28px;
  }

  .section-ornament--rna,
  .section-ornament--mod,
  .section-ornament--notes {
    right: -20px;
  }
}

@media (max-width: 760px) {
  .section-ornament {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {

  .section-ornament,
  .section-ornament__trace,
  .section-ornament__chain,
  .section-ornament__trail,
  .section-ornament__ribosome,
  .section-ornament__bead,
  .section-ornament__spark,
  .section-ornament__node {
    animation: none;
  }
}

.section-block--prose .about-text {
  max-width: 62ch;
  color: var(--site-text);
}

.section-block--prose .lead {
  font-size: 1.12rem;
  line-height: 1.7;
}

.toggle-switch--inline {
  margin-top: 0;
}

/* Lab */
.lab-card {
  display: grid;
  gap: 20px;
  grid-template-columns: auto 1fr;
  align-items: start;
  padding: 24px;
  border-radius: var(--site-radius-lg);
  border: 1px solid var(--site-border);
  background: var(--site-surface);
  box-shadow: var(--site-shadow);
  transition: border-color 0.3s var(--site-ease), box-shadow 0.3s var(--site-ease), transform 0.3s var(--site-ease);
}

.lab-card:hover {
  border-color: color-mix(in srgb, var(--site-accent) 35%, var(--site-border));
  box-shadow: var(--site-shadow-hover);
  transform: translateY(-2px);
}

@media (prefers-reduced-motion: reduce) {
  .lab-card {
    transition: border-color 0.3s var(--site-ease), box-shadow 0.3s var(--site-ease);
  }

  .lab-card:hover {
    transform: none;
  }
}

@media (max-width: 520px) {
  .lab-card {
    grid-template-columns: 1fr;
  }
}

.lab-card__logo {
  border-radius: 12px;
  padding: 8px;
  background: var(--site-bg-elevated);
}

html[data-theme="light"] .lab-card__logo {
  filter: var(--logo-filter);
}

.lab-card__role {
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.2rem;
  margin: 0 0 8px;
  color: var(--site-text);
}

.lab-card__pi {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  color: var(--site-muted);
  margin: 0 0 14px;
}

.lab-card__label {
  color: var(--site-accent);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-right: 6px;
}

.lab-card__list {
  margin: 0;
  padding-left: 1.1rem;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--site-muted);
}

/* Training + winding strand */
.section-block--training {
  border-top: none;
  padding-top: 32px;
}

.training-layout {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}

.training-spine {
  display: none;
  position: relative;
  color: var(--site-accent);
  opacity: 0.45;
}

.strand-wind {
  width: 100%;
  height: 100%;
  min-height: 520px;
}

.strand-wind__a,
.strand-wind__b {
  animation: spine-sway 20s ease-in-out infinite alternate;
}

.strand-wind__b {
  animation-delay: -6s;
}

@keyframes spine-sway {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(4px);
  }
}

@media (prefers-reduced-motion: reduce) {

  .strand-wind__a,
  .strand-wind__b {
    animation: none;
  }
}

.training-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.training-step {
  padding: 20px 22px;
  border-radius: var(--site-radius-md);
  border: 1px solid var(--site-border);
  background: var(--site-bg-elevated);
  transition: border-color 0.25s var(--site-ease), background 0.25s var(--site-ease);
}

.training-step:hover {
  border-color: color-mix(in srgb, var(--site-accent) 28%, var(--site-border));
  background: color-mix(in srgb, var(--site-surface) 40%, var(--site-bg-elevated));
}

.training-step__meta {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--site-accent);
  display: block;
  margin-bottom: 8px;
}

.training-step__h {
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.1rem;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--site-text);
}

.training-step__p {
  margin: 0;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--site-muted);
}

@media (min-width: 880px) {
  .training-layout {
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .training-spine {
    display: block;
    position: sticky;
    top: 100px;
  }

  .strand-wind {
    min-height: 640px;
  }
}

/* Focus grid */
.focus-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .focus-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.focus-item {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--site-muted);
  padding: 18px 18px 18px 20px;
  border-radius: var(--site-radius-sm);
  border: 1px solid var(--site-border);
  background: var(--site-surface);
  transition: border-color 0.25s var(--site-ease), box-shadow 0.25s var(--site-ease);
}

.focus-item:hover {
  border-color: color-mix(in srgb, var(--site-accent) 25%, var(--site-border));
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
}

html[data-theme="dark"] .focus-item:hover {
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.25);
}

.focus-item__tag {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--site-accent);
  margin-bottom: 8px;
}

/* Tools */
.tools-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 20px 28px;
  align-items: center;
}

.tools-row li {
  padding: 10px 12px;
  border-radius: var(--site-radius-sm);
  border: 1px solid transparent;
  transition: border-color 0.2s var(--site-ease), background 0.2s var(--site-ease);
}

.tools-row li:hover {
  border-color: var(--site-border);
  background: var(--site-accent-soft);
}

.tools-row img {
  display: block;
  opacity: 0.75;
  filter: grayscale(0.85);
  transition: opacity 0.2s ease, filter 0.2s ease;
}

.tools-row li:hover img {
  opacity: 1;
  filter: grayscale(0);
}

html[data-theme="light"] .tools-row img {
  filter: grayscale(0.6);
}

html[data-theme="light"] .tools-row li:hover img {
  filter: grayscale(0);
}

/* CV inline */
.cv-inline {
  display: grid;
  gap: 28px;
  margin-bottom: 24px;
}

@media (min-width: 720px) {
  .cv-inline {
    grid-template-columns: 1fr 1fr;
  }
}

.cv-inline__h {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--site-accent);
  margin: 0 0 14px;
}

.site-single .timeline--compact .timeline-list {
  margin-left: 0;
  padding-left: 0;
}

.timeline--compact .timeline-item::before,
.timeline--compact .timeline-item::after {
  display: none;
}

.timeline--compact .timeline-item {
  padding-left: 0;
  margin-bottom: 18px;
}

.timeline--compact .timeline-item-title {
  color: var(--site-text);
}

.timeline--compact .timeline-list span {
  color: var(--site-accent);
}

.timeline--compact .timeline-text {
  color: var(--site-muted);
}

.pdf-cv-button-container--single {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-start;
  margin-top: 8px;
}

/* Footer */
.site-footer {
  position: relative;
  border-top: 1px solid var(--site-border);
  padding: 48px 20px 40px;
  margin-top: 20px;
  overflow: hidden;
}

.site-footer__peony {
  position: absolute;
  right: -8%;
  top: -30%;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--site-peony), transparent 68%);
  pointer-events: none;
}

.site-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  text-align: center;
}

.site-footer__name {
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.25rem;
  margin: 0 0 6px;
}

.site-footer__meta {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.88rem;
  color: var(--site-muted);
  margin: 0 0 16px;
}

.site-footer__contact a {
  color: var(--site-accent);
  font-weight: 500;
  text-decoration: none;
}

.site-footer__contact a:hover {
  text-decoration: underline;
}

.site-footer__social {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: center;
}

.site-footer__social a {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.82rem;
  color: var(--site-muted);
  text-decoration: none;
}

.site-footer__social a:hover {
  color: var(--site-accent);
}

.site-footer__copy {
  margin: 28px 0 0;
  font-size: 0.75rem;
  color: var(--site-muted);
}

.site-single a {
  color: var(--site-accent);
}

:focus-visible {
  outline: 2px solid var(--site-accent);
  outline-offset: 3px;
}

#pdf-modal-object {
  width: 100%;
  min-height: 320px;
  height: min(78vh, 880px);
  border: 0;
  background: var(--site-bg);
}

/* Reveal (shared) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal--visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Map legacy portfolio/publication components to theme */
.site-single .publication-title,
.site-single .project-title {
  color: var(--site-text);
}

.site-single .publication-authors,
.site-single .publication-journal,
.site-single .project-category {
  color: var(--site-muted);
}

.site-single p,
.site-single li,
.site-single .training-step__p,
.site-single .focus-item,
.site-single .blog-card__description {
  color: color-mix(in srgb, var(--site-text) 84%, var(--site-muted));
}

.site-single .publication-img,
.site-single .project-img {
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius-md);
  overflow: hidden;
  background: var(--site-bg-elevated);
}

.site-single .project-item>a,
.site-single .publication-item>a {
  display: block;
  color: inherit;
  text-decoration: none;
  border-radius: var(--site-radius-md);
  overflow: hidden;
  background:
    radial-gradient(circle at top right, var(--site-accent-soft), transparent 28%),
    linear-gradient(180deg, color-mix(in srgb, var(--site-surface) 94%, transparent), var(--site-surface));
  border: 1px solid var(--site-border);
  transition: transform 0.3s var(--site-ease), box-shadow 0.3s var(--site-ease);
}

.site-single .project-item>a:hover,
.site-single .publication-item>a:hover {
  transform: translateY(-4px);
  box-shadow: var(--site-shadow-hover);
}

@media (prefers-reduced-motion: reduce) {

  .site-single .project-item>a,
  .site-single .publication-item>a {
    transition: box-shadow 0.3s var(--site-ease);
  }

  .site-single .project-item>a:hover,
  .site-single .publication-item>a:hover {
    transform: none;
  }
}

.site-single .publication-category {
  background: var(--site-bg-elevated);
  border-color: var(--site-border);
  color: var(--site-muted);
}

.site-single .filter-item button {
  color: var(--site-muted);
  cursor: pointer;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.2s var(--site-ease), background 0.2s var(--site-ease), border-color 0.2s var(--site-ease);
}

.site-single .filter-item button:hover {
  color: var(--site-text);
  background: var(--site-accent-soft);
}

.site-single .filter-item button.active {
  color: var(--site-accent);
  background: color-mix(in srgb, var(--site-accent-soft) 80%, transparent);
  border-color: color-mix(in srgb, var(--site-accent) 32%, transparent);
}

.site-single .filter-select {
  background: var(--site-surface);
  border-color: var(--site-border);
  color: var(--site-text);
}

.site-single .select-list {
  background: var(--site-surface);
  border-color: var(--site-border);
}

.site-single .select-item button {
  background: var(--site-surface);
  color: var(--site-muted);
}

.site-single .project-item-icon-box,
.site-single .publication-item-icon-box {
  background: var(--site-bg-elevated);
  color: var(--site-accent);
}

.site-single .publication-content,
.site-single .project-title,
.site-single .project-category {
  padding-left: 18px;
  padding-right: 18px;
}

.site-single .publication-content {
  padding-bottom: 20px;
}

.site-single .publication-item--text .publication-content {
  margin-left: 0;
  padding-top: 20px;
}

.site-single .project-title {
  margin-top: 16px;
  margin-bottom: 8px;
}

.site-single .project-category {
  margin-top: 0;
  margin-bottom: 18px;
}

.site-single .project-item--text .project-title,
.site-single .project-item--text .project-category {
  margin-left: 0;
}

.site-single .project-item--text .project-title {
  padding-top: 20px;
  margin-top: 0;
}

.site-single .project-item--text .project-category {
  padding-bottom: 20px;
  margin-bottom: 0;
}

.publications-section--feature,
.talks--feature {
  position: relative;
  padding: 24px;
  border-radius: calc(var(--site-radius-lg) + 6px);
  border: 1px solid var(--site-border);
  background:
    radial-gradient(circle at top left, var(--site-peony), transparent 26%),
    radial-gradient(circle at bottom right, var(--site-accent-soft), transparent 30%),
    linear-gradient(180deg, color-mix(in srgb, var(--site-surface) 97%, transparent), var(--site-bg-elevated));
}

@media (max-width: 680px) {

  .publications-section--feature,
  .talks--feature {
    padding: 16px;
  }

  .section-block__aside {
    max-width: none;
    margin-bottom: 0;
  }
}

.site-single .pdf-cv-button {
  background: var(--site-accent);
  color: var(--site-bg);
  border-radius: var(--site-radius-sm);
  border: none;
  transition: filter 0.2s var(--site-ease), transform 0.2s var(--site-ease);
}

.site-single .pdf-cv-button:hover {
  filter: brightness(1.06);
}

.site-single .pdf-cv-button:active {
  transform: scale(0.98);
}

@media (prefers-reduced-motion: reduce) {
  .site-single .pdf-cv-button:active {
    transform: none;
  }
}

/* PDF modal tweaks */
.pdf-modal-panel {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
}

.pdf-modal-close {
  color: var(--site-text);
}

.pdf-modal-body {
  background: var(--site-bg-elevated);
}

/* Selection */
::selection {
  background: var(--site-accent-soft);
  color: var(--site-text);
}

/* -----------------------------------------------------------------
   Legacy style.css conflict fixes (old layout used flex main + sidebar)
   ----------------------------------------------------------------- */

main.site-single {
  display: block !important;
  width: 100% !important;
  max-width: 1100px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  min-width: 0 !important;
  gap: 0 !important;
  flex-direction: unset !important;
  flex-wrap: unset !important;
  align-items: stretch !important;
  justify-content: flex-start !important;
}

@media (min-width: 580px) {
  main.site-single {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
  }
}

@media (min-width: 1024px) {
  main.site-single {
    margin-bottom: 0 !important;
  }
}

@media (min-width: 1250px) {
  main.site-single {
    display: block !important;
    max-width: 1100px !important;
    margin-inline: auto !important;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    gap: 0 !important;
  }
}

/* Prose + toggle: do not inherit legacy dark-only grays */
.site-single .about-text,
.site-single .about-text p,
.site-single .about-text .lead {
  color: var(--site-text);
}

.site-single .toggle-switch .toggle-slider {
  background: var(--site-bg-elevated);
  border: 1px solid var(--site-border);
  box-sizing: border-box;
}

.site-single .toggle-switch .toggle-checkbox:checked+.toggle-slider {
  background: var(--site-surface);
}

.site-single .toggle-switch .toggle-slider::before {
  background: var(--site-accent);
}

/* style.css sets li { list-style: none } globally */
.site-single .lab-card__list {
  list-style: disc;
  padding-left: 1.2rem;
}

.site-single .lab-card__list li {
  list-style: disc;
  display: list-item;
  margin-bottom: 0.35rem;
}

.site-single .pdf-cv-button {
  text-decoration: none;
}

.site-single .pdf-cv-button ion-icon {
  color: inherit;
}

/* Footer sits outside main; neutralize global link styling there */
.site-footer a {
  text-decoration: none;
}

/* Subpages (publications.html, talks.html, work.html) */
.site-single--subpage {
  padding-top: 20px;
  padding-bottom: 72px;
}

.subpage-section {
  border-top: none !important;
  padding-top: 8px;
}

.subpage-back {
  margin: 0 0 20px;
  font-size: 0.86rem;
}

.subpage-back a {
  color: var(--site-muted);
  text-decoration: none;
  font-weight: 500;
}

.subpage-back a:hover {
  color: var(--site-accent);
}

.subpage-h1 {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  padding-bottom: 14px;
  color: var(--site-text);
  position: relative;
}

.subpage-h1::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 2.75rem;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--site-accent), transparent);
  opacity: 0.9;
}

.section-block__deck--landing-note {
  margin-top: -6px;
  margin-bottom: 18px;
  font-size: 0.88rem;
  max-width: 48ch;
}

.section-view-all {
  margin-top: 22px;
  text-align: center;
}

.section-view-all__link {
  display: inline-block;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--site-accent);
  padding: 6px 4px;
  border-bottom: 1px solid transparent;
}

.section-view-all__link:hover {
  border-bottom-color: var(--site-accent);
}

.blog-section {
  padding: 0;
}

.blog-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.blog-card {
  grid-column: span 12;
}

.blog-card__link {
  position: relative;
  display: grid;
  gap: 16px;
  min-height: 100%;
  padding: 24px;
  border-radius: var(--site-radius-lg);
  border: 1px solid var(--site-border);
  background:
    radial-gradient(circle at top right, var(--site-accent-soft), transparent 34%),
    linear-gradient(180deg, color-mix(in srgb, var(--site-surface) 92%, transparent), var(--site-surface));
  text-decoration: none;
  color: inherit;
  box-shadow: var(--site-shadow);
  overflow: hidden;
  transition: transform 0.3s var(--site-ease), box-shadow 0.3s var(--site-ease), border-color 0.3s var(--site-ease);
}

.blog-card__link::after {
  content: "";
  position: absolute;
  inset: auto auto 0 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--site-accent), transparent 72%);
  opacity: 0.55;
}

.blog-card__link:hover,
.blog-card__link:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--site-shadow-hover);
  border-color: color-mix(in srgb, var(--site-accent) 35%, var(--site-border));
}

.blog-card__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.blog-card__category {
  color: var(--site-accent);
}

.blog-card__date {
  color: var(--site-muted);
}

.blog-card__title {
  margin: 0;
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.5rem, 2vw, 1.85rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--site-text);
  text-wrap: balance;
}

.blog-card__description {
  margin: 0;
  max-width: 44ch;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--site-muted);
}

.blog-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--site-text);
}

.blog-card__cta::after {
  content: "→";
  color: var(--site-accent);
}

.blog-page__hero {
  position: relative;
  display: grid;
  gap: 14px;
  margin-bottom: 32px;
  padding: 28px;
  border: 1px solid var(--site-border);
  border-radius: calc(var(--site-radius-lg) + 4px);
  background:
    radial-gradient(circle at top left, var(--site-peony), transparent 30%),
    radial-gradient(circle at bottom right, var(--site-accent-soft), transparent 36%),
    linear-gradient(180deg, color-mix(in srgb, var(--site-surface) 96%, transparent), var(--site-bg-elevated));
}

.blog-page__eyebrow {
  margin: 0;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--site-accent);
}

.blog-page__deck {
  margin-bottom: 0;
}

.blog-page__pulse {
  display: inline-grid;
  gap: 2px;
  width: fit-content;
  padding: 12px 16px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--site-bg) 35%, transparent);
  border: 1px solid color-mix(in srgb, var(--site-accent) 20%, var(--site-border));
}

.blog-page__pulse span {
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--site-text);
}

.blog-page__pulse small {
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--site-muted);
}

.blog-list--page .blog-card:nth-child(3n + 2) {
  grid-column: span 7;
}

.blog-list--page .blog-card:nth-child(3n + 1),
.blog-list--page .blog-card:nth-child(3n) {
  grid-column: span 5;
}

.blog-empty {
  padding: 28px;
  border-radius: var(--site-radius-lg);
  border: 1px dashed var(--site-border);
  background: color-mix(in srgb, var(--site-surface) 72%, transparent);
}

.blog-empty__title,
.blog-empty__copy {
  margin: 0;
}

.blog-empty__title {
  font-family: "Newsreader", Georgia, serif;
  font-size: 1.3rem;
  color: var(--site-text);
}

.blog-empty__copy {
  margin-top: 8px;
  font-family: "DM Sans", system-ui, sans-serif;
  color: var(--site-muted);
}

@media (max-width: 820px) {

  .blog-list,
  .blog-list--page .blog-card,
  .blog-list--page .blog-card:nth-child(3n + 1),
  .blog-list--page .blog-card:nth-child(3n + 2),
  .blog-list--page .blog-card:nth-child(3n) {
    grid-column: span 12;
  }

  .blog-page__hero {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-card__link {
    transition: box-shadow 0.3s var(--site-ease), border-color 0.3s var(--site-ease);
  }

  .blog-card__link:hover,
  .blog-card__link:focus-visible {
    transform: none;
  }
}