:root {
  --ink: #090a0f;
  --ink-soft: #12141c;
  --panel: #171922;
  --line: rgba(255, 255, 255, 0.13);
  --muted: #a4a7b3;
  --paper: #f1f0e9;
  --acid: #c8ff3d;
  --violet: #8c7cff;
  --coral: #ff6f5e;
  --active-accent: var(--acid);
  --shell: min(1180px, calc(100vw - 48px));
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--paper);
  background:
    radial-gradient(circle at 14% 16%, rgba(140, 124, 255, 0.08), transparent 28rem),
    var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

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

:focus-visible {
  outline: 3px solid var(--acid);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  color: var(--ink);
  background: var(--acid);
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  width: var(--shell);
  height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  font-weight: 720;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 25px;
  height: 25px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3px;
  transform: rotate(12deg);
}

.brand-mark span {
  border: 1px solid currentColor;
}

.brand-mark span:first-child,
.brand-mark span:last-child {
  background: currentColor;
}

.site-header nav {
  display: flex;
  gap: 34px;
}

.site-header nav a,
.header-link {
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  transition: color 160ms ease;
}

.site-header nav a:hover,
.header-link:hover {
  color: var(--paper);
}

.header-link {
  display: flex;
  gap: 8px;
  align-items: center;
}

.hero {
  position: relative;
  min-height: 790px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.14fr 0.86fr;
  align-items: center;
  gap: 8vw;
  padding: 140px max(24px, calc((100vw - 1180px) / 2)) 86px;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}

.hero-canvas,
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.hero-grid {
  z-index: -1;
  opacity: 0.35;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, transparent, #000 34%, #000 85%, transparent);
}

.eyebrow,
.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--acid);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.pulse-dot {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 6px rgba(200, 255, 61, 0.08);
}

.pulse-dot::after {
  content: "";
  position: absolute;
  inset: -7px;
  border: 1px solid var(--acid);
  border-radius: inherit;
  animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
  from { opacity: 0.6; transform: scale(0.4); }
  to { opacity: 0; transform: scale(1.3); }
}

.hero h1 {
  max-width: 720px;
  margin: 26px 0 24px;
  font-size: clamp(58px, 7vw, 110px);
  font-weight: 730;
  line-height: 0.83;
  letter-spacing: -0.075em;
}

.hero h1 em {
  color: transparent;
  font-style: normal;
  -webkit-text-stroke: 1.2px var(--paper);
}

.hero-intro {
  max-width: 610px;
  margin: 0;
  color: #bfc2cd;
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.62;
  letter-spacing: -0.02em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 51px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 750;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

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

.button-primary:hover {
  background: #dbff7f;
}

.button-secondary {
  color: var(--paper);
  border-color: var(--line);
  background: rgba(9, 10, 15, 0.55);
  backdrop-filter: blur(10px);
}

.button-secondary:hover {
  border-color: rgba(255, 255, 255, 0.35);
}

.hero-console {
  position: relative;
  align-self: center;
  width: min(100%, 430px);
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(13, 14, 20, 0.82);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(24px);
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
}

.hero-console::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 20% -15% -20% 35%;
  background: rgba(140, 124, 255, 0.18);
  filter: blur(55px);
}

.console-bar,
.code-window-bar {
  min-height: 47px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 15px;
  color: #818491;
  border-bottom: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
}

.traffic-lights,
.code-window-bar > div {
  display: flex;
  gap: 6px;
}

.traffic-lights span,
.code-window-bar > div span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #363944;
}

.traffic-lights span:nth-child(1),
.code-window-bar > div span:nth-child(1) { background: var(--coral); }
.traffic-lights span:nth-child(2),
.code-window-bar > div span:nth-child(2) { background: #efbe42; }
.traffic-lights span:nth-child(3),
.code-window-bar > div span:nth-child(3) { background: var(--acid); }

.console-index {
  margin-left: auto;
}

.console-body {
  min-height: 178px;
  padding: 27px 24px;
  color: #d7d9df;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.8;
}

.console-body p {
  margin: 0;
  white-space: nowrap;
}

.code-keyword,
.code-tag { color: #c8a9ff; }
.code-method,
.code-attr { color: #7dcfff; }
.code-string { color: var(--acid); }

.console-result {
  display: flex;
  gap: 9px;
  margin-top: 18px !important;
  padding: 9px 11px;
  color: var(--acid);
  border-left: 2px solid var(--acid);
  background: rgba(200, 255, 61, 0.05);
  white-space: normal !important;
}

.console-status {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 18px 22px;
  border-top: 1px solid var(--line);
}

.status-icon {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--acid);
  border: 1px solid currentColor;
  border-radius: 50%;
}

.status-label,
.console-status strong,
.console-status small {
  display: block;
}

.status-label {
  color: #727582;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.console-status strong {
  margin-top: 3px;
  font-size: 13px;
}

.console-status small {
  margin-top: 3px;
  color: #8f929e;
  font-size: 10px;
}

.hero-meta {
  position: absolute;
  right: max(24px, calc((100vw - 1180px) / 2));
  bottom: 23px;
  left: max(24px, calc((100vw - 1180px) / 2));
  display: flex;
  justify-content: space-between;
  color: #676a75;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-shell {
  width: var(--shell);
  margin-inline: auto;
}

.premise {
  padding-block: 116px;
}

.premise-copy {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 9vw;
  align-items: end;
  margin-top: 30px;
}

.premise-copy h2,
.section-heading h2,
.next-step h2 {
  margin: 0;
  font-size: clamp(42px, 5.2vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.premise-copy h2 span:first-child {
  color: var(--violet);
}

.premise-copy h2 span:last-child {
  color: var(--acid);
}

.premise-copy p,
.section-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.premise-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 22px;
  align-items: center;
  margin-top: 76px;
}

.premise-comparison article {
  min-width: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.comparison-number {
  color: #60636f;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
}

.premise-comparison h3 {
  margin: 45px 0 7px;
  font-size: 22px;
  letter-spacing: -0.035em;
}

.premise-comparison p {
  min-height: 40px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.comparison-join {
  color: #535662;
  font-size: 28px;
}

.meter {
  height: 3px;
  margin-top: 22px;
  overflow: hidden;
  background: #242630;
}

.meter span {
  display: block;
  width: var(--meter);
  height: 100%;
  background: #686b77;
}

.comparison-result .meter span {
  background: var(--acid);
  box-shadow: 0 0 16px rgba(200, 255, 61, 0.45);
}

.experiments {
  padding-block: 116px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 8vw;
  align-items: end;
  margin-bottom: 54px;
}

.section-heading h2 {
  max-width: 780px;
  margin-top: 19px;
}

.experiment {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-soft);
}

.experiment-featured {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  min-height: 510px;
}

.experiment-copy {
  position: relative;
  z-index: 2;
  padding: 36px;
}

.experiment-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #717480;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.tag {
  padding: 6px 8px;
  color: #9699a4;
  border: 1px solid #333640;
  border-radius: 99px;
}

.tag-lab {
  color: var(--acid);
  border-color: rgba(200, 255, 61, 0.35);
}

.experiment h3 {
  margin: 78px 0 15px;
  font-size: clamp(30px, 3vw, 44px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.experiment-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  color: #c5c7ce;
  font-size: 11px;
  list-style: none;
}

.feature-list span {
  margin-right: 8px;
  color: var(--acid);
}

.mode-switch {
  display: flex;
  width: fit-content;
  margin-top: 34px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #0e0f15;
}

.mode-button {
  padding: 8px 11px;
  color: #777a86;
  border: 0;
  border-radius: 4px;
  background: none;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
}

.mode-button.is-active {
  color: var(--paper);
  background: #282a34;
}

.mode-button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.experiment-stage {
  position: relative;
  min-width: 0;
  min-height: 510px;
}

.control-stage {
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 48%, color-mix(in srgb, var(--active-accent) 21%, transparent), transparent 34%),
    linear-gradient(135deg, #171923, #0d0e14 70%);
}

.control-stage::before,
.control-stage::after {
  content: "";
  position: absolute;
  width: 310px;
  height: 310px;
  border: 1px solid color-mix(in srgb, var(--active-accent) 38%, transparent);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px color-mix(in srgb, var(--active-accent) 4%, transparent),
    0 0 0 76px color-mix(in srgb, var(--active-accent) 3%, transparent);
}

.control-stage::after {
  width: 95px;
  height: 95px;
  border-color: color-mix(in srgb, var(--active-accent) 65%, transparent);
  filter: blur(1px);
}

.stage-noise {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.3'/%3E%3C/svg%3E");
  mix-blend-mode: screen;
}

.control-surface {
  position: relative;
  z-index: 3;
  width: min(380px, calc(100% - 48px));
  padding: 26px;
  color: #f6f7f1;
  border: 1px solid rgba(255, 255, 255, 0.19);
  border-radius: 13px;
  background: rgba(18, 20, 28, 0.78);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 22px 65px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(22px);
}

.surface-topline {
  display: flex;
  justify-content: space-between;
  margin-bottom: 64px;
  color: #8b8e99;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.surface-live {
  color: var(--active-accent);
}

.surface-live i {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 5px;
  border-radius: 50%;
  background: currentColor;
}

.control-surface label {
  display: block;
  margin-bottom: 18px;
  font-size: 27px;
  font-weight: 650;
  letter-spacing: -0.04em;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
}

.range-row output {
  width: 45px;
  color: var(--active-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
}

input[type="range"] {
  width: 100%;
  height: 3px;
  appearance: none;
  background: linear-gradient(90deg, var(--active-accent) var(--range, 64%), #454852 var(--range, 64%));
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  width: 15px;
  height: 15px;
  appearance: none;
  border: 3px solid #161820;
  border-radius: 50%;
  background: var(--active-accent);
  box-shadow: 0 0 0 1px var(--active-accent);
}

.swatch-row {
  display: flex;
  gap: 10px;
  margin-top: 38px;
}

.swatch {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 4px solid #161820;
  border-radius: 50%;
  background: var(--swatch);
  box-shadow: 0 0 0 1px #3a3d47;
  cursor: pointer;
}

.swatch[data-color="#c8ff3d"] { --swatch: #c8ff3d; }
.swatch[data-color="#8c7cff"] { --swatch: #8c7cff; }
.swatch[data-color="#ff6f5e"] { --swatch: #ff6f5e; }
.swatch.is-active { box-shadow: 0 0 0 2px var(--paper); }

.native-canvas {
  position: relative;
  z-index: 3;
  width: min(440px, calc(100% - 32px));
  height: 350px;
  display: none;
}

.stage-caption {
  position: absolute;
  right: 18px;
  bottom: 16px;
  z-index: 4;
  color: #777a85;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.experiment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.experiment-compact {
  min-width: 0;
}

.experiment-compact .experiment-copy {
  min-height: 305px;
}

.experiment-compact h3 {
  margin-top: 78px;
}

.lens-stage,
.stack-stage {
  position: relative;
  height: 350px;
  overflow: hidden;
  border-top: 1px solid var(--line);
}

.lens-stage {
  cursor: crosshair;
}

.lens-stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.lens-copy {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  pointer-events: none;
}

.lens-copy strong {
  font-size: clamp(56px, 8vw, 94px);
  line-height: 0.8;
  letter-spacing: -0.08em;
  text-transform: uppercase;
  mix-blend-mode: difference;
}

.lens-copy span {
  margin-top: 18px;
  color: #b7bac5;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.lens-cursor {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 118px;
  height: 118px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 50%;
  box-shadow:
    inset 0 0 30px rgba(255, 255, 255, 0.12),
    0 12px 40px rgba(0, 0, 0, 0.3);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.lens-cursor::before,
.lens-cursor::after {
  content: "";
  position: absolute;
  background: rgba(255, 255, 255, 0.5);
}

.lens-cursor::before {
  top: 50%;
  left: -9px;
  width: calc(100% + 18px);
  height: 1px;
}

.lens-cursor::after {
  top: -9px;
  left: 50%;
  width: 1px;
  height: calc(100% + 18px);
}

.stack-stage {
  display: grid;
  place-items: center;
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    #11131a;
  background-size: 44px 44px;
  perspective: 900px;
}

.stack-card {
  position: absolute;
  width: min(330px, calc(100% - 64px));
  height: 180px;
  border-radius: 12px;
  transform-style: preserve-3d;
  transition: transform 100ms ease-out;
}

.stack-card-back {
  border: 1px solid rgba(140, 124, 255, 0.5);
  background: rgba(140, 124, 255, 0.13);
  transform: translate(38px, -32px) rotate(-5deg);
}

.stack-card-mid {
  border: 1px solid rgba(200, 255, 61, 0.38);
  background: rgba(200, 255, 61, 0.09);
  transform: translate(19px, -16px) rotate(-2.5deg);
}

.stack-card-front {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(28, 30, 40, 0.92);
  box-shadow: 0 30px 50px rgba(0, 0, 0, 0.32);
}

.stack-card-front span {
  margin-bottom: auto;
  color: var(--violet);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stack-card-front strong {
  max-width: 240px;
  font-size: 18px;
  letter-spacing: -0.03em;
}

.stack-card-front small {
  margin-top: 7px;
  color: #898c98;
  font-size: 10px;
}

.stack-card-front i {
  position: absolute;
  right: 24px;
  bottom: 24px;
  font-style: normal;
}

.anatomy {
  padding-block: 116px;
}

.anatomy-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 80px;
  align-items: start;
}

.step-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-list li {
  border-top: 1px solid var(--line);
}

.step-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.step-list button {
  width: 100%;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 15px;
  padding: 25px 4px;
  color: #666975;
  text-align: left;
  border: 0;
  background: transparent;
  cursor: pointer;
  transition: color 160ms ease;
}

.step-list li.is-active button {
  color: var(--paper);
}

.step-list button > span:first-child {
  padding-top: 2px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
}

.step-list strong,
.step-list small {
  display: block;
}

.step-list strong {
  font-size: 16px;
}

.step-list small {
  margin-top: 7px;
  color: #747783;
  font-size: 11px;
}

.code-window {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #111218;
}

.code-window-bar > span {
  margin-left: 10px;
}

.copy-button {
  margin-left: auto;
  padding: 6px 9px;
  color: #979aa5;
  border: 1px solid #31333d;
  border-radius: 4px;
  background: transparent;
  font-size: 9px;
  cursor: pointer;
}

.code-window pre {
  min-height: 280px;
  margin: 0;
  overflow-x: auto;
  padding: 35px;
  color: #d8dae1;
  border-bottom: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 2;
  tab-size: 2;
}

.code-window mark {
  padding: 2px 4px;
  color: var(--ink);
  background: var(--acid);
  border-radius: 2px;
}

.line-number {
  display: inline-block;
  width: 32px;
  color: #464954;
  user-select: none;
}

.code-explanation {
  min-height: 128px;
  padding: 24px 35px;
}

.code-explanation strong {
  font-size: 13px;
}

.code-explanation p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.code-explanation code {
  color: var(--acid);
}

.field-notes {
  padding-block: 116px;
  border-top: 1px solid var(--line);
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.notes-grid article {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  min-height: 170px;
  align-items: center;
  padding: 32px;
  background: var(--ink-soft);
}

.note-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  color: var(--acid);
  border: 1px solid #373a44;
  border-radius: 50%;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

.notes-grid h3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -0.025em;
}

.notes-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.caution {
  display: grid;
  grid-template-columns: auto 0.85fr 1.3fr auto;
  gap: 25px;
  align-items: center;
  margin-top: 18px;
  padding: 30px;
  color: var(--ink);
  border-radius: var(--radius);
  background: var(--acid);
}

.caution-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(9, 10, 15, 0.36);
  border-radius: 50%;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.caution span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.caution h3 {
  margin: 7px 0 0;
  font-size: 20px;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.caution p {
  margin: 0;
  font-size: 11px;
  line-height: 1.65;
}

.caution a {
  font-size: 11px;
  font-weight: 750;
  white-space: nowrap;
}

.next-step {
  position: relative;
  overflow: hidden;
  padding: 120px 24px;
  color: var(--ink);
  text-align: center;
  background: var(--paper);
}

.next-step-grid {
  position: absolute;
  inset: 0;
  opacity: 0.11;
  background-image:
    linear-gradient(#090a0f 1px, transparent 1px),
    linear-gradient(90deg, #090a0f 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle, #000, transparent 68%);
}

.next-step > *:not(.next-step-grid) {
  position: relative;
}

.next-step .section-kicker {
  justify-content: center;
  color: #555863;
}

.next-step h2 {
  margin-top: 24px;
  font-size: clamp(48px, 7vw, 98px);
}

.next-step h2 span {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
}

.next-step p {
  max-width: 560px;
  margin: 25px auto 0;
  color: #60626a;
  font-size: 15px;
  line-height: 1.65;
}

.next-step .hero-actions {
  justify-content: center;
}

.button-dark {
  color: var(--paper);
  background: var(--ink);
}

.button-outline-dark {
  color: var(--ink);
  border-color: rgba(9, 10, 15, 0.3);
}

footer {
  width: var(--shell);
  min-height: 210px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 70px;
  align-items: center;
  margin-inline: auto;
}

.footer-brand {
  margin-bottom: 14px;
}

footer p {
  margin: 0;
  color: #737681;
  font-size: 11px;
}

.footer-links {
  display: grid;
  gap: 10px;
  color: #999ca7;
  font-size: 11px;
}

.footer-links a:hover {
  color: var(--paper);
}

.footer-year {
  color: #5a5d68;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 60px;
    padding-top: 150px;
    padding-bottom: 100px;
  }

  .hero-console {
    width: min(100%, 600px);
    justify-self: center;
    transform: none;
  }

  .premise-copy {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .experiment-featured,
  .anatomy-layout {
    grid-template-columns: 1fr;
  }

  .experiment-featured .experiment-copy {
    min-height: 400px;
  }

  .anatomy-layout {
    gap: 35px;
  }

  .caution {
    grid-template-columns: auto 1fr;
  }

  .caution p,
  .caution a {
    grid-column: 2;
  }
}

@media (max-width: 720px) {
  :root {
    --shell: calc(100vw - 32px);
  }

  .site-header {
    height: 72px;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 122px 16px 90px;
  }

  .hero h1 {
    font-size: clamp(52px, 15vw, 70px);
  }

  .hero h1 em {
    display: block;
  }

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

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

  .hero-meta {
    display: none;
  }

  .console-body {
    overflow: hidden;
    font-size: 10px;
  }

  .premise,
  .experiments,
  .anatomy,
  .field-notes {
    padding-block: 82px;
  }

  .premise-comparison {
    grid-template-columns: 1fr;
    margin-top: 50px;
  }

  .comparison-join {
    display: none;
  }

  .premise-comparison h3 {
    margin-top: 24px;
  }

  .premise-comparison p {
    min-height: auto;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .experiment-grid,
  .notes-grid {
    grid-template-columns: 1fr;
  }

  .experiment-copy {
    padding: 27px;
  }

  .experiment h3 {
    margin-top: 55px;
  }

  .experiment-compact .experiment-copy {
    min-height: 275px;
  }

  .experiment-stage {
    min-height: 460px;
  }

  .control-surface {
    width: calc(100% - 30px);
    padding: 22px;
  }

  .control-surface label {
    font-size: 23px;
  }

  .code-window pre {
    padding: 25px 20px;
    font-size: 10px;
  }

  .code-explanation {
    padding: 22px;
  }

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

  .caution p,
  .caution a {
    grid-column: 1;
  }

  .next-step {
    padding-block: 90px;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-block: 55px;
  }
}

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

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