* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: #f4f7fb;
  color: #222;
}

.hero {
  background: linear-gradient(135deg, #002b5c, #006699);
  color: white;
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 3em;
  margin-bottom: 15px;
}

.hero p {
  font-size: 1.2em;
  opacity: 0.95;
}

.sistemas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  padding: 50px 30px;
  max-width: 1400px;
  margin: auto;
}

.sistema-card {
  background: white;
  border-radius: 10px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06);
  padding: 25px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sistema-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 22px rgba(0, 0, 0, 0.12);
}

.sistema-card i {
  font-size: 2.3em;
  color: #006699;
  margin-bottom: 14px;
}

.sistema-card h3 {
  font-size: 1.2em;
  margin-bottom: 8px;
}

.sistema-card p {
  font-size: 0.95em;
  color: #555;
  margin-bottom: 15px;
}

.sistema-card a {
  display: inline-block;
  background: #006699;
  color: white;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
  transition: background 0.2s ease-in-out;
}

.sistema-card a:hover {
  background: #0094cc;
}

.impacto {
  text-align: center;
  padding: 50px 30px;
  background: #e6f2f8;
  color: #003b5e;
}

.impacto h2 {
  font-size: 1.8em;
  margin-bottom: 15px;
}

.impacto p {
  font-size: 1.1em;
}

.rodape {
  text-align: center;
  padding: 20px;
  background: #002b5c;
  color: white;
  font-size: 0.9em;
}