:root {
  --fundo: #14181c;
  --fundo-alternado: #181d22;
  --superficie: #1d2329;
  --borda: #333c45;
  --texto: #ffffff;
  --texto-suave: #b4bcc6;
  --laranja: #ff7a1a;
  --vermelho: #f93636;
  --degrade: linear-gradient(90deg, var(--laranja), var(--vermelho));
  --largura: 1120px;
  --raio: 16px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4.2vw, 2.6rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
figure { margin: 0; }

:focus-visible { outline: 3px solid var(--laranja); outline-offset: 3px; border-radius: 6px; }

.conteudo { width: 100%; max-width: var(--largura); margin: 0 auto; padding: 0 16px; }

/* ---------- peças comuns ---------- */
.rotulo {
  color: var(--laranja);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: .75em;
}
.apoio { color: var(--texto-suave); font-size: 1.1rem; max-width: 40em; }
.degrade-texto {
  background: var(--degrade);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.botao {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--degrade);
  color: var(--fundo);
  font-weight: 800;
  text-decoration: none;
  text-align: center;
  border: 0;
  transition: transform .15s ease, box-shadow .15s ease;
}
.botao:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(249, 54, 54, .25); }
.botao--contorno { background: transparent; color: var(--texto); font-weight: 700; border: 1px solid var(--borda); }
.botao--contorno:hover { border-color: var(--laranja); box-shadow: none; }
.botao--pequeno { min-height: 40px; padding: 8px 18px; font-size: .95rem; }
@media (prefers-reduced-motion: reduce) {
  .botao { transition: none; }
  .botao:hover { transform: none; }
}

.acoes { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.acoes--centro { justify-content: center; margin-top: 48px; }

.cartao {
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 22px;
}
.cartao p { color: var(--texto-suave); margin: 0; }

.moldura {
  border-radius: var(--raio);
  overflow: hidden;
  border: 1px solid var(--borda);
  background: var(--superficie);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
}
.moldura--celular { border-radius: 28px; border-width: 6px; border-color: #2a3138; }
figcaption {
  padding: 10px 14px;
  font-size: .9rem;
  color: var(--texto-suave);
  border-top: 1px solid var(--borda);
}

/* ---------- topo ---------- */
.topo {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(20, 24, 28, .85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(51, 60, 69, .6);
}
.topo__linha { display: flex; align-items: center; gap: 16px; min-height: 68px; }
.topo__logo img { height: 34px; width: auto; }
.topo__nav { display: none; margin-left: auto; gap: 24px; }
.topo__nav a { text-decoration: none; color: var(--texto-suave); font-weight: 600; }
.topo__nav a:hover { color: var(--texto); }
.topo .botao { margin-left: auto; }
@media (min-width: 640px) {
  .topo__nav { display: flex; }
  .topo .botao { margin-left: 8px; }
}

/* ---------- destaque ---------- */
.destaque {
  position: relative;
  padding: 56px 0 72px;
  background:
    radial-gradient(600px 400px at 85% 10%, rgba(255, 122, 26, .16), transparent 70%),
    radial-gradient(500px 360px at 0% 90%, rgba(249, 54, 54, .10), transparent 70%);
}
.destaque__grade { display: grid; gap: 48px; align-items: center; }
.destaque__visual { position: relative; padding-right: 18%; }
.destaque__visual .moldura--celular {
  position: absolute;
  right: 0;
  bottom: -24px;
  width: 30%;
}
@media (min-width: 900px) {
  .destaque { padding: 96px 0 120px; }
  .destaque__grade { grid-template-columns: 1.05fr 1fr; }
}

/* ---------- seções ---------- */
.secao { padding: 80px 0; }
.secao--alternada { background: var(--fundo-alternado); border-top: 1px solid var(--borda); border-bottom: 1px solid var(--borda); }
.secao__cabeca { margin-bottom: 40px; }

.recursos {
  list-style: none;
  margin: 0 0 56px;
  padding: 0;
  display: grid;
  gap: 16px;
}
@media (min-width: 640px) { .recursos { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .recursos { grid-template-columns: repeat(4, 1fr); } }
.recursos .cartao h3::before {
  content: "";
  display: block;
  width: 32px;
  height: 4px;
  border-radius: 4px;
  background: var(--degrade);
  margin-bottom: 14px;
}

.ia {
  display: grid;
  gap: 32px;
  align-items: center;
  padding: 28px;
  border-radius: 24px;
  background:
    linear-gradient(var(--superficie), var(--superficie)) padding-box,
    var(--degrade) border-box;
  border: 1px solid transparent;
  margin-bottom: 56px;
}
.ia__texto h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
.ia__texto p { color: var(--texto-suave); }
.selo {
  display: inline-block;
  margin: 8px 0 0;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--laranja);
  color: var(--texto) !important;
  font-weight: 700;
  font-size: .9rem;
}
@media (min-width: 900px) {
  .ia { grid-template-columns: 1fr 1.2fr; padding: 40px; }
}

.galeria { display: grid; gap: 24px; align-items: start; }
.galeria .moldura--celular { max-width: 300px; justify-self: center; }
@media (min-width: 900px) {
  .galeria { grid-template-columns: 2.4fr 1fr; }
}

.etiquetas__principal { margin-bottom: 40px; }
.etiquetas__detalhe { display: grid; gap: 32px; align-items: center; }
@media (min-width: 900px) {
  .etiquetas__detalhe { grid-template-columns: 1fr 1fr; }
}
.lista { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.lista li {
  padding-left: 22px;
  position: relative;
  color: var(--texto-suave);
}
.lista li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--degrade);
}
.lista strong { color: var(--texto); }

/* ---------- contato ---------- */
.contato__caixa {
  text-align: center;
  padding-top: 56px;
  padding-bottom: 56px;
  border-radius: 24px;
  background:
    radial-gradient(500px 240px at 50% 0%, rgba(255, 122, 26, .18), transparent 70%),
    var(--superficie);
  border: 1px solid var(--borda);
  max-width: calc(var(--largura) - 32px);
}
.contato__caixa .apoio { margin: 0 auto; }
.contato .acoes--centro { margin-top: 28px; }

/* ---------- rodapé ---------- */
.rodape { border-top: 1px solid var(--borda); padding: 32px 0; color: var(--texto-suave); font-size: .95rem; }
.rodape__linha { display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: center; }
.rodape__linha p { margin: 0; }
.rodape__logo { height: 28px; width: auto; margin-right: auto; }
.rodape a { text-decoration: none; }
.rodape a:hover { color: var(--texto); text-decoration: underline; }