* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Roboto', sans-serif; background: #f9fafb; color: #1f2937; }
header {
  background-color: #003366;
  color: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
header h1 { font-size: 1.5rem; }

header a {
  color: white;
  text-decoration: none;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  z-index: 10;
}
.menu-toggle span {
  height: 3px;
  background: white;
  margin: 4px 0;
  width: 25px;
  transition: all 0.3s ease;
}
.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

nav {
  background-color: #2e8b57;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0.5rem 0;
  transition: all 0.3s ease;
}
nav a {
  color: white;
  text-decoration: none;
  margin: 0.5rem 1rem;
  font-weight: bold;
}
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 1rem;
}
.alerta {
  background-color: #fff3cd;
  border-left: 6px solid #ffc107;
  padding: 1rem;
  margin-bottom: 2rem;
  border-radius: 4px;
}
.alerta h2 { color: #856404; margin-bottom: 0.5rem; }
.card {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  margin-bottom: 1.5rem;
}
footer {
  background-color: #003366;
  color: white;
  text-align: center;
  padding: 1rem 0;
  margin-top: 2rem;
}
.botao-webmail {
  display: inline-block;
  background-color: #2e8b57;
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 1rem;
  transition: background-color 0.3s;
}
.botao-webmail:hover {
  background-color: #256d46;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  nav {
    display: none;
    flex-direction: column;
    align-items: center;
  }
  nav.active {
    display: flex;
  }
  nav a {
    margin: 0.75rem 0;
  }
}