* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  font-family: Arial, Helvetica, sans-serif;
  background: url("assets/fundo-agro-minimal.svg") center / cover no-repeat fixed;
}
.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
  position: relative;
}
.overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.20));
}
.card {
  position: relative;
  z-index: 1;
  width: min(92vw, 900px);
  padding: clamp(24px, 4vw, 40px);
  text-align: center;
  border-radius: 30px;
  background: rgba(255,255,255,.38);
  border: 1px solid rgba(255,255,255,.55);
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 80px rgba(0,0,0,.18);
  animation: fadeUp .8s ease;
}
.logo {
  width: min(100%, 760px);
  height: auto;
  display: block;
  margin: 0 auto 14px;
  filter: drop-shadow(0 12px 22px rgba(0,0,0,.20));
}
h1 {
  color: #ffffff;
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: uppercase;
  text-shadow: 0 8px 20px rgba(0,0,0,.35);
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 700px) {
  .card { border-radius: 22px; padding: 20px 16px; }
  .logo { margin-bottom: 8px; }
}