/* Base */
:root{
  --verde:#4CAF50;
  --verde-esc:#3b9640;
  --cinza:#f6f7f9;
  --texto:#222;
  --muted:#666;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--texto);
  background:#fff;
  line-height:1.6;
}

/* Navbar centrada */
.navbar{
  background:var(--verde);
  position:sticky;
  top:0;
  z-index:10;
}
.nav-inner{
  max-width:1000px;
  margin:0 auto;
  padding:14px 28px;
  display:flex;
  justify-content:center;
  gap:26px;
}
.navbar a{
  color:#fff;
  text-decoration:none;
  font-weight:700;
}
.navbar a[aria-current="page"],
.navbar a:hover{ text-decoration:underline }

/* Content wrapper */
.container{
  max-width:1000px;
  margin:0 auto;
  padding:24px 22px 64px;
}

/* HERO */
.hero{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
}
.hero h1{
  font-size:32px;
  margin:8px 0 12px;
}
.capa{
  max-width:280px;     /* aparece logo sem scroll grande */
  width:100%;
  height:auto;
  margin:6px auto 12px;
  display:block;
}
.sub{
  font-size:18px;
  max-width:760px;
  margin:8px auto 0;
}
.formato{
  margin:6px 0 18px;
}

/* Buttons */
.btns{ display:flex; gap:14px; flex-wrap:wrap; justify-content:center }

.btn{
  display:inline-block;
  border-radius:10px;
  padding:12px 18px;
  font-weight:700;
  text-decoration:none;
  border:1px solid #ddd;
  background:#fff;
  color:var(--texto);
}
.btn:hover{ filter:brightness(0.98) }

.btn-comprar{
  background:var(--verde);
  color:#fff;
  border-color:var(--verde);
}
.btn-comprar:hover{ background:var(--verde-esc) }

.btn-amostra{ background:#eee }

.btn-sec{ background:#eee; border-color:#ddd }

/* Blocks */
.bloco{ margin-top:42px }
.bloco h2{ margin:0 0 8px }

/* Newsletter inputs */
.newsletter{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin:10px 0;
}
.newsletter input{
  padding:10px 12px;
  border:1px solid #ccc;
  border-radius:8px;
  min-width:260px;
}

.muted{ color:var(--muted); font-size:14px }

/* Recursos */
.recursos{ padding-left:6px; }
.recursos h1{ margin:10px 0 6px; }
.recursos .intro{ max-width:820px }
.lista-recursos{
  list-style: none;
  padding-left: 0;
  line-height:1.9;
  margin:12px 0 4px;
}
.lista-recursos li a{ color:#0a58ca; text-decoration:underline }

/* Footer */
.footer{
  background:#222;
  color:#fff;
  text-align:center;
  padding:24px 16px;
}
.footer a{ color:#aee8b5; text-decoration:none }
.footer a:hover{ text-decoration:underline }

/* Responsivo */
@media (min-width: 1100px){
  .capa{ max-width:320px }
}
@media (max-width: 480px){
  .nav-inner{ gap:18px; padding:12px 16px }
  .hero h1{ font-size:28px }
}