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

:root{
  --verde:#006633;
  --verde2:#008a45;
  --cinza:#f3f5f7;
  --texto:#222;
  --branco:#ffffff;
  --sombra:0 6px 18px rgba(0,0,0,0.08);
}

body{
  font-family:Arial, Helvetica, sans-serif;
  background:var(--cinza);
  color:var(--texto);
  min-height:100vh;
}

.topo{
  background:linear-gradient(135deg,var(--verde),var(--verde2));
  color:white;
  padding:24px 20px;
  box-shadow:var(--sombra);
  position:sticky;
  top:0;
  z-index:1000;
}

.topo-conteudo{
  display:flex;
  align-items:center;
  gap:16px;
}

.logo-app{
  width:72px;
  height:72px;
  border-radius:18px;
  background:white;
  padding:6px;
}

.topo h1{
  font-size:2rem;
  margin-bottom:4px;
}

.topo p{
  opacity:0.92;
}

.botoes-topo{
  display:flex;
  gap:12px;
  margin-top:18px;
  flex-wrap:wrap;
}

.btn-topo{
  background:white;
  color:var(--verde);
  border:none;
  padding:12px 18px;
  border-radius:12px;
  cursor:pointer;
  font-weight:bold;
  transition:0.2s;
  box-shadow:0 4px 10px rgba(0,0,0,0.1);
}

.btn-topo:hover{
  transform:translateY(-2px);
}

.area-avisos{
  max-width:1200px;
  margin:20px auto 0;
  padding:0 20px;
}

.aviso{
  padding:18px;
  border-radius:16px;
  margin-bottom:16px;
  color:white;
  box-shadow:var(--sombra);
}

.aviso-info{
  background:#1976d2;
}

.aviso-alerta{
  background:#f57c00;
}

.aviso-urgente{
  background:#c62828;
}

.aviso h3{
  margin-bottom:8px;
  font-size:1.1rem;
}

.grade-cards{
  padding:24px 20px 40px;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px;
  max-width:1200px;
  margin:auto;
}

.card{
  background:var(--branco);
  border-radius:22px;
  padding:24px;
  text-decoration:none;
  color:var(--texto);
  transition:0.25s;
  box-shadow:var(--sombra);
  border-left:7px solid var(--verde);
  position:relative;
  overflow:hidden;
}

.card::before{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:80px;
  height:80px;
  background:rgba(0,102,51,0.06);
  border-radius:50%;
  transform:translate(30px,-30px);
}

.card:hover{
  transform:translateY(-5px);
  box-shadow:0 10px 24px rgba(0,0,0,0.12);
}

.card h2{
  font-size:1.15rem;
  margin-bottom:12px;
  position:relative;
  z-index:1;
}

.card p{
  color:#666;
  font-size:0.96rem;
  line-height:1.4;
  position:relative;
  z-index:1;
}

.loading{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  color:#666;
  font-size:1.1rem;
}

footer{
  text-align:center;
  padding:30px 20px;
  color:#666;
  font-size:0.95rem;
}

@media(max-width:700px){

  .topo h1{
    font-size:1.6rem;
  }

  .logo-app{
    width:60px;
    height:60px;
  }

  .grade-cards{
    grid-template-columns:1fr;
    padding:20px 16px 40px;
  }

  .card{
    padding:22px;
  }

  .btn-topo{
    width:100%;
  }

}