:root {
  --fundo: #05070b;
  --superficie: #0b0f17;
  --linha: rgba(124, 196, 255, 0.12);
  --texto: #e8eef7;
  --apagado: #8391a7;
  --azul: #3b82f6;
  --ciano: #7cc4ff;
  --brilho: 0 0 32px rgba(59, 130, 246, 0.35);
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--texto);
  background:
    radial-gradient(900px 500px at 75% -10%, rgba(37, 99, 235, 0.22), transparent 70%),
    linear-gradient(var(--linha) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(90deg, var(--linha) 1px, transparent 1px) 0 0 / 64px 64px,
    var(--fundo);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, var(--fundo) 85%);
}

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

.topo,
main,
.rodape {
  position: relative;
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.marca {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 14px;
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--apagado);
}

nav a:hover {
  color: var(--texto);
}

.botao {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--ciano), var(--azul));
  color: #03060c;
  font-weight: 600;
  box-shadow: var(--brilho);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.botao:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 44px rgba(59, 130, 246, 0.55);
}

.botao.pequeno {
  padding: 9px 18px;
  color: #03060c;
}

.botao.fantasma {
  background: transparent;
  color: var(--texto);
  border: 1px solid var(--linha);
  box-shadow: none;
}

.botao.fantasma:hover {
  border-color: rgba(124, 196, 255, 0.4);
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 56px;
  min-height: calc(100vh - 90px);
  padding: 40px 0 80px;
}

.selo {
  display: inline-block;
  margin: 0 0 22px;
  padding: 6px 12px;
  border: 1px solid var(--linha);
  border-radius: 999px;
  color: var(--ciano);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  font-weight: 700;
}

h1 span {
  background: linear-gradient(90deg, var(--ciano), var(--azul));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sub {
  max-width: 440px;
  margin: 0 0 32px;
  color: var(--apagado);
  font-size: 18px;
  line-height: 1.55;
}

.acoes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.plataformas {
  margin: 28px 0 0;
  color: var(--apagado);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.demo {
  position: relative;
  justify-self: center;
  width: min(420px, 100%);
}

.painel {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--linha);
  border-radius: 22px;
  background:
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.025) 0 2px, transparent 2px 9px),
    linear-gradient(180deg, #0e131d, #080b11);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.balao {
  position: absolute;
  display: grid;
  place-items: center;
  padding: 18px;
  border-radius: 50%;
  background: #f4f6fa;
  color: #0a0d14;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
}

.balao.b1 {
  top: 12%;
  right: 10%;
  width: 46%;
  aspect-ratio: 1.1;
}

.balao.b2 {
  bottom: 14%;
  left: 9%;
  width: 52%;
  aspect-ratio: 1.25;
  border-radius: 14px;
}

.balao span {
  grid-area: 1 / 1;
  transition: opacity 0.4s ease;
}

.original {
  font-family: "Comic Sans MS", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
  animation: some 6s infinite;
}

.traduzido {
  padding: 8px 10px;
  border-radius: 10px;
  background: #fff;
  color: #0a0d14;
  font-weight: 600;
  box-shadow: 0 0 0 1.5px var(--azul), 0 0 22px rgba(59, 130, 246, 0.45);
  animation: aparece 6s infinite;
}

.varredura {
  position: absolute;
  left: 0;
  right: 0;
  height: 90px;
  top: -90px;
  background: linear-gradient(180deg, transparent, rgba(124, 196, 255, 0.18), transparent);
  border-bottom: 1px solid rgba(124, 196, 255, 0.6);
  animation: varre 6s infinite;
}

.tecla {
  position: absolute;
  left: -22px;
  bottom: 26px;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(124, 196, 255, 0.45);
  border-radius: 14px;
  background: var(--superficie);
  color: var(--ciano);
  font-size: 22px;
  font-weight: 700;
  box-shadow: var(--brilho);
  animation: aperta 6s infinite;
}

@keyframes varre {
  0%,
  12% {
    top: -90px;
    opacity: 0;
  }
  14% {
    opacity: 1;
  }
  34% {
    top: 100%;
    opacity: 1;
  }
  36%,
  100% {
    top: 100%;
    opacity: 0;
  }
}

@keyframes some {
  0%,
  28% {
    opacity: 1;
  }
  34%,
  90% {
    opacity: 0;
  }
  96%,
  100% {
    opacity: 1;
  }
}

@keyframes aparece {
  0%,
  28% {
    opacity: 0;
  }
  34%,
  90% {
    opacity: 1;
  }
  96%,
  100% {
    opacity: 0;
  }
}

@keyframes aperta {
  0%,
  8%,
  16%,
  100% {
    transform: translateY(0);
  }
  12% {
    transform: translateY(3px);
    box-shadow: 0 0 50px rgba(59, 130, 246, 0.7);
  }
}

.secao {
  padding: 96px 0;
  border-top: 1px solid var(--linha);
}

h2 {
  margin: 0 0 48px;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: -0.03em;
  font-weight: 650;
}

h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
}

.passos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.passos li,
.planos article,
.plataforma {
  padding: 28px;
  border: 1px solid var(--linha);
  border-radius: 18px;
  background: rgba(11, 15, 23, 0.7);
  backdrop-filter: blur(6px);
}

.passos p,
.planos p {
  margin: 0;
  color: var(--apagado);
  line-height: 1.55;
}

.num {
  display: block;
  margin-bottom: 28px;
  color: var(--ciano);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.idiomas {
  margin: 40px 0 0;
  color: var(--apagado);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.idiomas span {
  color: var(--ciano);
}

.planos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.planos .preco {
  margin: 14px 0 10px;
  color: var(--texto);
  font-size: 28px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.preco small {
  margin-left: 2px;
  color: var(--apagado);
  font-size: 14px;
  font-weight: 400;
}

.planos .destaque {
  border-color: rgba(124, 196, 255, 0.45);
  box-shadow: var(--brilho);
}

.nota {
  margin: 28px 0 0;
  color: var(--apagado);
  font-size: 14px;
}

.baixar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 720px;
}

.plataforma {
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.plataforma:hover,
.plataforma.seu {
  border-color: rgba(124, 196, 255, 0.5);
  box-shadow: var(--brilho);
}

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

.plataforma svg {
  width: 28px;
  height: 28px;
  margin-bottom: 18px;
  fill: none;
  stroke: var(--ciano);
  stroke-width: 1.4;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.plataforma span {
  font-size: 18px;
  font-weight: 600;
}

.plataforma small {
  color: var(--apagado);
  font-size: 13px;
}

.plataforma.em-breve {
  cursor: default;
  opacity: 0.7;
}

.plataforma.em-breve:hover {
  transform: none;
}

.rodape {
  display: flex;
  justify-content: space-between;
  padding: 32px 0 48px;
  border-top: 1px solid var(--linha);
  color: var(--apagado);
  font-size: 13px;
}

.rodape a:hover {
  color: var(--texto);
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 24px;
  }

  .demo {
    width: min(360px, 88%);
  }

  .passos,
  .baixar {
    grid-template-columns: 1fr;
  }

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

  nav a:not(.botao) {
    display: none;
  }
}

@media (max-width: 480px) {
  .planos {
    grid-template-columns: 1fr;
  }

  .secao {
    padding: 72px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .traduzido {
    opacity: 1;
  }

  .original {
    opacity: 0;
  }
}