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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--cor-fundo);
  color: var(--cor-texto);
  font-family: var(--fonte-texto);
  font-size: var(--texto-corpo);
  line-height: var(--altura-linha-corpo);
  -webkit-font-smoothing: antialiased;
}

html.menu-open,
body.menu-open {
  height: 100%;
  overflow: hidden;
}

::selection {
  background: var(--atria-gelo-300);
  color: var(--atria-abissal-900);
}

:focus-visible {
  outline: 2px solid var(--cor-foco);
  outline-offset: 4px;
}

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

button, input {
  font: inherit;
}

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

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  z-index: 200;
  top: 1rem;
  left: 1rem;
  transform: translateY(-180%);
  padding: .7rem 1rem;
  border-radius: var(--raio-s);
  background: var(--atria-gelo-100);
  color: var(--atria-abissal-900);
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transicao-rapida);
}

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

.container {
  width: min(100% - clamp(2.5rem, 8vw, 7rem), 1180px);
  margin-inline: auto;
}

.overline {
  margin: 0;
  color: var(--atria-gelo-400);
  font-family: var(--fonte-mono);
  font-size: var(--texto-overline);
  font-weight: 500;
  letter-spacing: var(--tracking-overline);
  line-height: 1.4;
  text-transform: uppercase;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  color: var(--atria-gelo-100);
  font-family: var(--fonte-display);
  font-size: .84rem;
  font-weight: 500;
  letter-spacing: .32em;
  line-height: 1;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

.brand b {
  color: var(--atria-nevoa-400);
  font-weight: 300;
}

.nav {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  isolation: isolate;
  border-bottom: 1px solid transparent;
  transition: background var(--transicao-suave), border-color var(--transicao-suave);
}

.nav.is-solid {
  border-color: var(--cor-borda);
  background: rgba(5, 10, 19, .82);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.nav__inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.3vw, 2rem);
}

.nav__links a {
  position: relative;
  color: var(--atria-nevoa-400);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color var(--transicao-rapida);
}

.nav__links a::after {
  position: absolute;
  right: 0;
  bottom: -.55rem;
  left: 0;
  height: 1px;
  content: "";
  background: var(--atria-gelo-300);
  transform: scaleX(0);
  transition: transform var(--transicao-suave);
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--atria-gelo-100);
}

.nav__links a.is-active::after {
  transform: scaleX(1);
}

.nav__links .nav__download {
  padding: .7rem 1rem;
  border: var(--borda-hairline);
  border-radius: var(--raio-s);
  color: var(--atria-gelo-200);
}

.nav__links .nav__download::after {
  display: none;
}

.nav__toggle {
  display: none;
  position: relative;
  z-index: 3;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--atria-gelo-100);
  cursor: pointer;
}

.nav__toggle i {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  width: 23px;
  height: 1px;
  margin: 0;
  background: currentColor;
  transition: transform var(--transicao-suave);
}

.nav__toggle i:first-of-type {
  transform: translate(-50%, -4px);
}

.nav__toggle i:last-of-type {
  transform: translate(-50%, 4px);
}

.hero {
  position: relative;
  min-height: 760px;
  height: max(760px, 100svh);
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 42%, rgba(143, 188, 245, .11), transparent 27%),
    radial-gradient(ellipse 95% 80% at 50% 38%, #0b1526 0%, var(--atria-abissal-950) 72%);
}

#ceu {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .75;
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  height: 100%;
  min-height: inherit;
  grid-template-columns: minmax(0, 1fr) minmax(380px, .88fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  padding-block: 7rem 5rem;
}

.hero__copy {
  position: relative;
  z-index: 2;
}

.hero h1 {
  max-width: 8.4ch;
  margin: 1.25rem 0 1.65rem;
  font-family: var(--fonte-display);
  font-size: clamp(3.7rem, 7.5vw, 7rem);
  font-weight: 400;
  letter-spacing: -.05em;
  line-height: .92;
}

.hero h1 em {
  color: var(--atria-gelo-300);
  font-style: normal;
  font-weight: 300;
  text-shadow: 0 0 60px rgba(166, 204, 251, .24);
}

.hero__lede {
  max-width: 55ch;
  margin: 0;
  color: var(--cor-texto-2);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.hero__actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
}

.hero__actions {
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: .78rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-size: .88rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: color var(--transicao-suave), background var(--transicao-suave), border-color var(--transicao-suave), box-shadow var(--transicao-suave), transform var(--transicao-suave);
}

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

.button--primary {
  background: var(--atria-gelo-100);
  color: var(--atria-abissal-900);
}

.button--primary:hover {
  background: var(--atria-gelo-50);
  box-shadow: var(--brilho-medio);
}

.button--ghost,
.button--secondary {
  border-color: var(--cor-borda-forte);
  background: rgba(234, 243, 255, .02);
  color: var(--atria-gelo-100);
}

.button--ghost:hover,
.button--secondary:hover {
  border-color: rgba(194, 220, 255, .48);
  background: rgba(234, 243, 255, .06);
}

.hero__meta {
  display: flex;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin: clamp(2.5rem, 6vh, 4.5rem) 0 0;
}

.hero__meta div {
  display: grid;
  gap: .2rem;
}

.hero__meta dt {
  color: var(--atria-gelo-200);
  font-family: var(--fonte-mono);
  font-size: 1rem;
}

.hero__meta dd {
  margin: 0;
  color: var(--atria-nevoa-500);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero__visual {
  position: relative;
  display: grid;
  height: min(86vh, 880px);
  place-items: center;
}

.hero__visual picture {
  position: relative;
  z-index: 2;
  display: grid;
  width: auto;
  height: 100%;
  place-items: center;
}

.hero__visual img {
  width: auto;
  height: 100%;
  object-fit: contain;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 8%, #000 88%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, #000 8%, #000 88%, transparent 100%);
}

.hero__halo {
  position: absolute;
  top: 45%;
  left: 50%;
  width: min(36vw, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--grad-halo);
  filter: blur(8px);
  transform: translate(-50%, -50%);
}

.hero__orbit {
  position: absolute;
  z-index: 1;
  top: 47%;
  left: 73%;
  aspect-ratio: 1;
  border: 1px solid rgba(194, 220, 255, .055);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.hero__orbit--one {
  width: min(54vw, 780px);
}

.hero__orbit--two {
  width: min(74vw, 1080px);
}

.hero__scroll {
  position: absolute;
  z-index: 4;
  bottom: 0;
  left: 50%;
  display: grid;
  justify-items: center;
  gap: .65rem;
  color: var(--atria-nevoa-500);
  font-family: var(--fonte-mono);
  font-size: .62rem;
  letter-spacing: .2em;
  text-decoration: none;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.hero__scroll i {
  width: 1px;
  height: 52px;
  background: linear-gradient(transparent, var(--atria-gelo-400));
}

.section {
  position: relative;
  overflow: hidden;
  padding-block: clamp(6.5rem, 13vw, 10rem);
  border-top: var(--borda-hairline);
  scroll-margin-top: 72px;
}

.section--intro {
  border-top: 0;
}

.section__number {
  position: absolute;
  top: 1.5rem;
  right: clamp(1rem, 5vw, 4rem);
  color: rgba(194, 220, 255, .035);
  font-family: var(--fonte-display);
  font-size: clamp(7rem, 17vw, 14rem);
  font-weight: 300;
  line-height: 1;
  pointer-events: none;
}

.section__head {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.section__head h2 {
  margin: 1rem 0 1.35rem;
  font-family: var(--fonte-display);
  font-size: clamp(2.5rem, 5.5vw, 4.6rem);
  font-weight: 400;
  letter-spacing: -.045em;
  line-height: 1;
}

.section__head h2 span {
  color: var(--atria-gelo-300);
  font-weight: 300;
}

.section__head > p:last-child {
  max-width: 64ch;
  margin-bottom: 0;
  color: var(--cor-texto-2);
}

.essence {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) 1.3fr;
  gap: clamp(3rem, 8vw, 7rem);
}

.essence__story {
  color: var(--cor-texto-2);
  font-size: clamp(1.05rem, 1.7vw, 1.2rem);
}

.essence__story p {
  margin: 0 0 1.4rem;
}

.essence__story strong {
  color: var(--atria-gelo-100);
  font-weight: 500;
}

.principles {
  display: grid;
}

.principle {
  position: relative;
  display: grid;
  min-height: 130px;
  grid-template-columns: 54px 150px 1fr;
  align-items: baseline;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: var(--borda-hairline);
}

.principle:last-child {
  border-bottom: var(--borda-hairline);
}

.principle > span {
  color: var(--atria-gelo-400);
  font-family: var(--fonte-mono);
  font-size: .68rem;
}

.principle h3 {
  margin: 0;
  font-family: var(--fonte-display);
  font-size: 1.2rem;
  font-weight: 500;
}

.principle p {
  margin: 0;
  color: var(--cor-texto-2);
  font-size: .94rem;
}

.logo-showcase {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 1.25rem;
}

.logo-card {
  margin: 0;
}

.logo-card__media {
  display: grid;
  aspect-ratio: 1;
  overflow: hidden;
  place-items: center;
  border: var(--borda-hairline);
  border-radius: var(--raio-g);
  background: var(--atria-abissal-950);
}

.logo-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-card figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem .2rem 0;
  color: var(--atria-gelo-200);
  font-family: var(--fonte-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.logo-card figcaption small {
  color: var(--atria-nevoa-500);
  font-size: inherit;
}

.rules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 7vw, 6rem);
  margin-top: clamp(3.5rem, 8vw, 6rem);
}

.check-list {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: .9rem 0 .9rem 1.8rem;
  border-bottom: var(--borda-hairline);
  color: var(--cor-texto-2);
  font-size: .92rem;
}

.check-list li::before {
  position: absolute;
  top: .96rem;
  left: 0;
  content: "✓";
  color: var(--atria-sucesso);
  font-family: var(--fonte-mono);
}

.check-list--no li::before {
  content: "×";
  color: var(--atria-erro);
}

.downloads {
  display: grid;
  grid-template-columns: 1fr repeat(3, auto);
  align-items: center;
  gap: 1rem;
  margin-top: 4rem;
  padding: 1.35rem;
  border: var(--borda-hairline);
  border-radius: var(--raio-m);
  background: rgba(234, 243, 255, .025);
}

.downloads p {
  margin: .3rem 0 0;
  color: var(--cor-texto-3);
  font-size: .82rem;
}

.downloads a {
  padding: .8rem 1rem;
  border-left: var(--borda-hairline);
  color: var(--atria-gelo-200);
  font-size: .82rem;
  text-decoration: none;
}

.downloads a span {
  margin-left: .4rem;
  color: var(--atria-nevoa-500);
  font-family: var(--fonte-mono);
  font-size: .64rem;
}

.section--color {
  background: linear-gradient(180deg, var(--atria-abissal-900), var(--atria-abissal-950));
}

.palette {
  display: grid;
  min-height: 360px;
  grid-template-columns: repeat(8, 1fr);
  overflow: hidden;
  border: var(--borda-hairline);
  border-radius: var(--raio-g);
}

.swatch {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: .3rem;
  padding: 1rem .3rem;
  border: 0;
  background: var(--swatch);
  color: var(--atria-abissal-900);
  cursor: pointer;
  transition: flex var(--transicao-suave), filter var(--transicao-suave);
}

.swatch:hover,
.swatch:focus-visible {
  filter: brightness(1.1);
}

.swatch span,
.swatch code {
  font-family: var(--fonte-mono);
  font-size: .58rem;
  writing-mode: vertical-rl;
}

.swatch span {
  margin-bottom: .5rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.swatch code {
  opacity: .64;
}

.swatch--dark {
  color: var(--atria-nevoa-400);
}

.copy-hint {
  margin: .8rem 0 0;
  color: var(--atria-nevoa-600);
  font-family: var(--fonte-mono);
  font-size: .66rem;
  text-align: right;
}

.color-system {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: clamp(2rem, 6vw, 5rem);
  margin-top: clamp(3.5rem, 8vw, 6rem);
}

.ratio {
  display: flex;
  min-height: 180px;
  overflow: hidden;
  border: var(--borda-hairline);
  border-radius: var(--raio-g);
}

.ratio div {
  display: flex;
  flex: var(--size);
  min-width: 0;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.3rem;
}

.ratio div:nth-child(1) {
  background: var(--atria-abissal-800);
}

.ratio div:nth-child(2) {
  background: var(--atria-gelo-100);
  color: var(--atria-abissal-900);
}

.ratio div:nth-child(3) {
  background: linear-gradient(160deg, var(--atria-gelo-50), var(--atria-gelo-500));
  color: var(--atria-abissal-900);
}

.ratio b {
  font-family: var(--fonte-mono);
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 400;
}

.ratio span {
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.support-colors {
  display: grid;
  align-content: start;
}

.support-colors .overline {
  margin-bottom: 1rem;
}

.support-colors button {
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: .8rem 0;
  border: 0;
  border-bottom: var(--borda-hairline);
  background: transparent;
  color: var(--cor-texto-2);
  cursor: pointer;
  text-align: left;
}

.support-colors i {
  width: 26px;
  height: 26px;
  border: var(--borda-hairline);
  border-radius: 50%;
  background: var(--dot);
}

.support-colors code {
  color: var(--atria-nevoa-500);
  font-family: var(--fonte-mono);
  font-size: .68rem;
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.type-card {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-left: var(--borda-hairline);
}

.type-card:first-child {
  padding-left: 0;
  border-left: 0;
}

.type-card__sample {
  margin-bottom: 1.5rem;
  color: var(--atria-gelo-100);
  font-size: clamp(5rem, 10vw, 8rem);
  line-height: .9;
}

.type-card--display .type-card__sample {
  font-family: var(--fonte-display);
  font-weight: 500;
}

.type-card--text .type-card__sample {
  color: var(--atria-gelo-200);
  font-family: var(--fonte-texto);
}

.type-card--mono .type-card__sample {
  color: var(--atria-gelo-300);
  font-family: var(--fonte-mono);
}

.type-card h3 {
  margin: .75rem 0;
  font-family: var(--fonte-display);
  font-size: 1.15rem;
  font-weight: 500;
}

.type-card > p:last-child {
  margin: 0;
  color: var(--cor-texto-2);
  font-size: .9rem;
}

.type-scale {
  margin-top: clamp(3rem, 7vw, 5rem);
  border-top: var(--borda-hairline);
}

.type-scale > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  overflow: hidden;
  padding: 1.15rem 0;
  border-bottom: var(--borda-hairline);
}

.type-scale span {
  overflow: hidden;
  font-family: var(--fonte-display);
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.type-scale code {
  flex: none;
  color: var(--atria-nevoa-500);
  font-family: var(--fonte-mono);
  font-size: .64rem;
  letter-spacing: .12em;
}

.type-scale__display { font-size: clamp(2.5rem, 6vw, 4.25rem); }
.type-scale__h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
.type-scale__h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); }
.type-scale__body {
  color: var(--atria-gelo-200);
  font-family: var(--fonte-texto) !important;
  font-size: 1.06rem;
}

.section--graphics {
  background: var(--atria-abissal-950);
}

.graphics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.graphic-card h3 {
  margin: 1.2rem 0 .4rem;
  font-family: var(--fonte-display);
  font-size: 1.12rem;
  font-weight: 500;
}

.graphic-card p {
  max-width: 47ch;
  margin: 0;
  color: var(--cor-texto-2);
  font-size: .9rem;
}

.graphic {
  position: relative;
  height: 250px;
  overflow: hidden;
  border: var(--borda-hairline);
  border-radius: var(--raio-g);
  background-color: #030812;
}

.graphic--stars {
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(216, 233, 255, .8) 50%, transparent 52%),
    radial-gradient(2px 2px at 30% 68%, rgba(216, 233, 255, .5) 50%, transparent 52%),
    radial-gradient(1px 1px at 47% 35%, rgba(216, 233, 255, .5) 50%, transparent 52%),
    radial-gradient(2px 2px at 63% 75%, rgba(216, 233, 255, .65) 50%, transparent 52%),
    radial-gradient(1px 1px at 72% 18%, rgba(216, 233, 255, .75) 50%, transparent 52%),
    radial-gradient(2px 2px at 86% 48%, rgba(216, 233, 255, .45) 50%, transparent 52%),
    radial-gradient(1px 1px at 22% 85%, rgba(216, 233, 255, .4) 50%, transparent 52%),
    radial-gradient(1px 1px at 92% 82%, rgba(216, 233, 255, .55) 50%, transparent 52%);
}

.graphic--orbits::before,
.graphic--orbits::after,
.graphic--orbits i {
  position: absolute;
  top: 50%;
  left: 50%;
  aspect-ratio: 1;
  border: 1px solid rgba(194, 220, 255, .09);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.graphic--orbits::before { width: 100px; }
.graphic--orbits::after { width: 210px; opacity: .65; }
.graphic--orbits i { width: 330px; opacity: .35; }

.graphic--thread::before {
  position: absolute;
  top: 50%;
  right: 10%;
  left: 10%;
  height: 1px;
  content: "";
  background: rgba(234, 243, 255, .14);
}

.graphic--thread i {
  position: absolute;
  top: 50%;
  left: 62%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--atria-gelo-100);
  box-shadow: var(--brilho-medio);
  transform: translate(-50%, -50%);
}

.graphic--veil {
  background:
    linear-gradient(180deg, rgba(5, 10, 19, .18), #050a13),
    linear-gradient(135deg, #36537d, #101c30 55%, #08101d);
}

.light-rule {
  display: flex;
  align-items: center;
  gap: 2rem;
  max-width: 840px;
  margin: clamp(5rem, 10vw, 8rem) auto 0;
  color: var(--atria-gelo-200);
  font-family: var(--fonte-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 300;
  text-align: center;
}

.light-rule::before,
.light-rule::after {
  height: 1px;
  flex: 1;
  content: "";
  background: var(--cor-borda);
}

.ui-stage {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2rem, 6vw, 4.5rem);
  border: var(--borda-hairline);
  border-radius: 26px;
  background:
    radial-gradient(circle at 75% 30%, rgba(166, 204, 251, .08), transparent 32%),
    var(--atria-abissal-950);
}

.ui-stage__controls {
  display: grid;
  align-content: center;
  gap: 1.5rem;
}

.field {
  display: grid;
  max-width: 400px;
  gap: .55rem;
}

.field span {
  color: var(--atria-nevoa-400);
  font-family: var(--fonte-mono);
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  padding: .9rem 1rem;
  border: var(--borda-hairline);
  border-radius: 10px;
  background: rgba(234, 243, 255, .04);
  color: var(--cor-texto);
}

.field input::placeholder {
  color: var(--atria-nevoa-500);
}

.metric-card {
  padding: clamp(1.7rem, 4vw, 2.8rem);
  border: var(--borda-hairline);
  border-radius: var(--raio-g);
  background: var(--atria-abissal-800);
}

.metric-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.metric-card__top > span {
  color: var(--atria-sucesso);
  font-family: var(--fonte-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  margin-top: 2rem;
  font-family: var(--fonte-mono);
  font-size: clamp(2.7rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1;
}

.metric-card > p {
  margin: .6rem 0 0;
  color: var(--cor-texto-3);
  font-size: .78rem;
}

.metric-card svg {
  width: 100%;
  margin-top: 1.5rem;
}

.section--voice {
  background:
    radial-gradient(circle at 50% 48%, rgba(166, 204, 251, .06), transparent 34%),
    var(--atria-abissal-900);
}

.voice-words {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(.7rem, 2vw, 1.5rem);
  margin: 0 0 clamp(4rem, 8vw, 6rem);
  font-family: var(--fonte-display);
  font-size: clamp(1.25rem, 3.3vw, 2.5rem);
  font-weight: 300;
}

.voice-words i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--atria-nevoa-600);
}

.voice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 7vw, 6rem);
}

.voice-grid article {
  padding-top: 1.5rem;
  border-top: 1px solid var(--cor-borda-forte);
}

.voice-grid blockquote {
  margin: 1.5rem 0 1rem;
  color: var(--atria-gelo-200);
  font-family: var(--fonte-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 300;
  line-height: 1.3;
}

.voice-grid article > p:last-child {
  color: var(--cor-texto-2);
}

.contrast-table {
  overflow: hidden;
  border-top: 1px solid var(--cor-borda-forte);
}

.contrast-table > div {
  display: grid;
  grid-template-columns: 2fr .55fr .45fr .8fr;
  align-items: center;
  gap: 1rem;
  padding: 1rem .8rem;
  border-bottom: var(--borda-hairline);
}

.contrast-table__head {
  color: var(--atria-nevoa-500);
  font-family: var(--fonte-mono);
  font-size: .62rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.contrast-table > div:not(.contrast-table__head) {
  color: var(--cor-texto-2);
  font-size: .88rem;
}

.contrast-table i {
  display: inline-grid;
  width: 56px;
  height: 34px;
  margin-right: .7rem;
  place-items: center;
  border: var(--borda-hairline);
  border-radius: 7px;
  background: var(--bg);
  color: var(--fg);
  font-style: normal;
}

.contrast-table code {
  color: var(--atria-gelo-300);
  font-family: var(--fonte-mono);
}

.contrast-table b {
  justify-self: start;
  padding: .25rem .6rem;
  border: 1px solid rgba(111, 220, 184, .3);
  border-radius: var(--raio-pill);
  color: var(--atria-sucesso);
  font-family: var(--fonte-mono);
  font-size: .62rem;
  font-weight: 500;
  letter-spacing: .08em;
}

.footer {
  padding-block: 2.5rem;
  border-top: var(--borda-hairline);
  background: var(--atria-abissal-950);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 2rem;
}

.footer p {
  margin: 0;
  color: var(--atria-nevoa-500);
  font-family: var(--fonte-mono);
  font-size: .62rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.toast {
  position: fixed;
  z-index: 150;
  right: 1.2rem;
  bottom: 1.2rem;
  padding: .75rem 1rem;
  border: var(--borda-hairline);
  border-radius: 10px;
  background: rgba(10, 19, 34, .94);
  box-shadow: var(--brilho-suave);
  color: var(--atria-gelo-200);
  font-family: var(--fonte-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transicao-suave), transform var(--transicao-suave);
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 800ms cubic-bezier(.4, 0, .2, 1), transform 800ms cubic-bezier(.4, 0, .2, 1);
}

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

@media (max-width: 980px) {
  body.menu-open .nav {
    border-color: var(--cor-borda);
    background: rgba(5, 10, 19, .96);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  body.menu-open .nav__inner {
    width: 100%;
    padding-inline: clamp(1.25rem, 7vw, 4rem);
  }

  .nav .brand {
    position: relative;
    z-index: 3;
  }

  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: fixed;
    z-index: 1;
    top: 72px;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    visibility: hidden;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    height: calc(100dvh - 72px);
    min-height: calc(100vh - 72px);
    padding: clamp(2rem, 7vh, 3rem) clamp(1.25rem, 7vw, 4rem) calc(2rem + env(safe-area-inset-bottom));
    background:
      radial-gradient(circle at 50% 0%, rgba(166, 204, 251, .07), transparent 38%),
      var(--atria-abissal-900);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity var(--transicao-suave), transform var(--transicao-suave), visibility var(--transicao-suave);
  }

  .nav__links.is-open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav__links a {
    width: 100%;
    padding: 1.1rem 0;
    border-bottom: var(--borda-hairline);
    font-family: var(--fonte-display);
    font-size: 1.25rem;
    letter-spacing: .08em;
  }

  .nav__links a::after {
    display: none;
  }

  .nav__links .nav__download {
    margin-top: 1.5rem;
    border: 1px solid var(--cor-borda-forte);
    text-align: center;
  }

  .nav__toggle[aria-expanded="true"] i:first-of-type {
    transform: translate(-50%, 0) rotate(45deg);
  }

  .nav__toggle[aria-expanded="true"] i:last-of-type {
    transform: translate(-50%, 0) rotate(-45deg);
  }

  .hero__grid {
    grid-template-columns: 1fr .72fr;
  }

  .hero__meta {
    flex-wrap: wrap;
  }

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

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

  .downloads a {
    border-top: var(--borda-hairline);
    border-left: 0;
  }

  .color-system {
    grid-template-columns: 1fr;
  }

  .ui-stage {
    grid-template-columns: 1fr;
  }

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

  .footer__inner p:first-of-type {
    display: none;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 2.5rem, 1180px);
  }

  .hero {
    height: auto;
    min-height: 760px;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    align-content: center;
    padding-block: 8.5rem 6.5rem;
  }

  .hero__copy {
    padding-top: 43vh;
  }

  .hero h1 {
    font-size: clamp(3.6rem, 17vw, 5.8rem);
  }

  .hero__visual {
    position: absolute;
    z-index: -1;
    top: 6.5rem;
    right: auto;
    left: 50%;
    width: min(92vw, 420px);
    height: auto;
    aspect-ratio: 1;
    opacity: .55;
    transform: translateX(-50%);
  }

  .hero__visual picture,
  .hero__visual img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
  }

  .hero__orbit {
    top: 28%;
    left: 50%;
  }

  .hero__scroll {
    display: none;
  }

  .principle {
    grid-template-columns: 40px 1fr;
  }

  .principle p {
    grid-column: 2;
  }

  .logo-showcase,
  .rules,
  .type-grid,
  .graphics-grid,
  .voice-grid {
    grid-template-columns: 1fr;
  }

  .logo-showcase {
    gap: 2.5rem;
  }

  .logo-card__media {
    width: 100%;
    aspect-ratio: 1;
    margin-inline: auto;
  }

  .logo-card figcaption {
    align-items: flex-start;
    padding-inline: .35rem;
  }

  .type-card {
    padding: 2rem 0;
    border-top: var(--borda-hairline);
    border-left: 0;
  }

  .type-card:first-child {
    border-top: 0;
  }

  .palette {
    min-height: auto;
    grid-template-columns: repeat(4, 1fr);
  }

  .swatch {
    min-height: 150px;
  }

  .ratio div {
    padding: 1rem .65rem;
  }

  .voice-words {
    flex-wrap: wrap;
  }

  .contrast-table {
    overflow-x: auto;
  }

  .contrast-table > div {
    min-width: 720px;
  }

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

@media (max-width: 480px) {
  .brand {
    font-size: .72rem;
  }

  .hero__actions .button,
  .button-row .button {
    width: 100%;
  }

  .hero__meta {
    gap: 1rem;
    justify-content: space-between;
  }

  .hero__meta dd {
    max-width: 10ch;
  }

  .section {
    padding-block: 5.5rem;
  }

  .section__head h2 {
    font-size: 2.6rem;
  }

  .palette {
    grid-template-columns: repeat(2, 1fr);
  }

  .swatch {
    min-height: 110px;
    align-items: flex-start;
    padding: .8rem;
  }

  .swatch span,
  .swatch code {
    writing-mode: horizontal-tb;
  }

  .ratio {
    min-height: 140px;
  }

  .ratio div:nth-child(3) span {
    display: none;
  }

  .type-scale code {
    display: none;
  }

  .graphic {
    height: 210px;
  }

  .light-rule {
    gap: 1rem;
    font-size: 1.25rem;
  }

  .ui-stage {
    padding: 1.25rem;
  }
}

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

  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }

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