/* Base: reset leve, tipografia, estrutura das páginas e cabeçalho. */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--fonte);
  font-size: 16px;
  line-height: 1.6;
  color: var(--texto);
  background-color: var(--fundo);
  background-image: var(--brilho-fundo);
  background-attachment: fixed;
  background-repeat: no-repeat;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 0.4em;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
}

h1 { font-size: clamp(1.9rem, 6vw, 3.3rem); }
h2 { font-size: clamp(1.4rem, 3.6vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.4vw, 1.3rem); }

p { margin: 0 0 1em; }

a {
  color: var(--link);
  text-decoration-color: color-mix(in srgb, var(--link) 45%, transparent);
  text-underline-offset: 3px;
}

a:hover { text-decoration-color: currentColor; }

code, kbd, samp, .mono {
  font-family: var(--fonte-mono);
  font-size: 0.94em;
}

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

:focus-visible {
  outline: 3px solid var(--primaria-clara);
  outline-offset: 2px;
  border-radius: 6px;
}

.pular {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -140%);
  z-index: 60;
  padding: 0.7rem 1.1rem;
  background: var(--primaria);
  color: var(--primaria-texto);
  border-radius: 0 0 var(--raio-p) var(--raio-p);
  font-weight: 600;
  transition: transform 0.18s ease;
}

.pular:focus { transform: translate(-50%, 0); }

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

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

/* ---------- Cabeçalho ---------- */

.topo {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--fundo-topo) 88%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--borda);
}

.topo-linha {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 60px;
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 0;
  background: none;
  padding: 6px 4px;
  color: inherit;
  cursor: pointer;
  font: inherit;
}

.marca-nome {
  font-weight: 800;
  font-size: 1.07rem;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.marca-logo {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--primaria), var(--primaria-escura));
  box-shadow: var(--sombra-suave);
  font-family: var(--fonte-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.marca-logo .seta { opacity: 0.65; }

.topo-acoes {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ---------- Abas de navegação ---------- */

.abas {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 6px 0 8px;
  border-top: 1px solid var(--borda);
  scroll-snap-type: x proximity;
}

.abas::-webkit-scrollbar { display: none; }

.aba-botao {
  flex: 0 0 auto;
  scroll-snap-align: start;
  min-height: var(--toque);
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: none;
  color: var(--texto-suave);
  font: inherit;
  font-size: 0.93rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.aba-botao:hover {
  color: var(--texto);
  background: var(--fundo-cartao);
}

.aba-botao[aria-selected='true'] {
  color: var(--primaria-texto);
  background: linear-gradient(135deg, var(--primaria), var(--primaria-escura));
  border-color: var(--primaria-escura);
  box-shadow: var(--sombra-suave);
}

/* ---------- Páginas ---------- */

main { display: block; }

.pagina {
  display: none;
  padding: 26px 0 64px;
  animation: entrar 0.3s ease both;
}

.pagina[data-ativa='true'] { display: block; }

@keyframes entrar {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.pagina-cabeca {
  max-width: 68ch;
  margin-bottom: 20px;
}

.pagina-cabeca p {
  color: var(--texto-suave);
  margin-bottom: 0;
}

.secao {
  margin-top: 26px;
}

.grade {
  display: grid;
  gap: 16px;
}

@media (min-width: 720px) {
  .grade-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .grade-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grade-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- Herói ---------- */

.heroi {
  position: relative;
  padding: 34px 0 10px;
  text-align: center;
}

.heroi-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding: 10px 16px;
  border: 1px solid var(--borda);
  border-radius: 999px;
  background: var(--fundo-cartao);
  backdrop-filter: blur(8px);
  font-family: var(--fonte-mono);
  font-size: clamp(0.95rem, 3vw, 1.25rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.heroi-logo .passo {
  color: var(--destaque);
}

.heroi-logo .seta {
  color: var(--texto-fraco);
}

.heroi h1 {
  background: linear-gradient(135deg, var(--texto) 25%, var(--primaria-clara) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5em;
}

.heroi-frase {
  max-width: 54ch;
  margin: 0 auto 1.6em;
  font-size: clamp(1rem, 2.6vw, 1.22rem);
  color: var(--texto-suave);
}

.heroi-botoes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ---------- Rodapé ---------- */

.rodape {
  border-top: 1px solid var(--borda);
  background: color-mix(in srgb, var(--fundo-topo) 70%, transparent);
  padding: 26px 0 40px;
  color: var(--texto-suave);
  font-size: 0.92rem;
}

.rodape-grade {
  display: grid;
  gap: 18px;
}

@media (min-width: 760px) {
  .rodape-grade { grid-template-columns: 1.3fr 1fr; align-items: start; }
}

.rodape-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.rodape-links button {
  display: inline-flex;
  align-items: center;
  min-height: var(--toque);
  border: 0;
  background: none;
  padding: 0;
  color: var(--link);
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* Em telas estreitas o cabeçalho fica só com o essencial. */
@media (max-width: 760px) {
  #selo-offline { display: none; }
}

@media (max-width: 420px) {
  .marca-logo { font-size: 0.68rem; padding: 4px 7px; gap: 3px; }
  .marca-nome { font-size: 0.98rem; }
  .topo-linha { gap: 8px; min-height: 56px; }
}