:root {
  --cor-background: #4a4848;
  --cor-background-card: #4d1350;
  --cor-texto: #fefefe;
  --cor-sombra: rgba(0, 0, 0, 0.2);
}

* {
  font-family: "Verdana", sans-serif;
  box-sizing: border-box;
  letter-spacing: 0px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  margin: 0;
}

body {
  position: relative;
  padding: 10px;
  background-image: url("../IMG/fundott.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat; 
  background-attachment: fixed; 

}

.conteudo {
  width: 100%;
  display: flex;
  justify-content: center;
  transition: all 0.3s ease-in-out;
  margin-top: 10vh; 
}

.conteudo.centralizado {
  align-items: center;
  height: 100vh;
  margin-top: 0;
}

.conteudo .card {
  background-color: var(--cor-background-card);
  width: 90%;
  max-width: 500px;
  border-radius: 5px;
  box-shadow: 0 0 10px var(--cor-sombra);
  padding: 1rem;
}

.conteudo .card header.cabecalho {
  background-color: var(--cor-texto);
  height: 30px;
  border-radius: 5px 5px 0 0;
}

.conteudo .card main.corpo {
  padding: 2rem 1rem;
}
.conteudo .card main.corpo .resultado {
  background-color: var(--cor-background-card); 
  color: var(--cor-texto); 
  padding: 1rem; 
  text-align: center; 
  border-radius: 5px; 
  margin-top: 1rem; 
  word-wrap: break-word;
}

.conteudo .card main.corpo form {
  width: 100%;
  display: flex;
  gap: 10px;
}

.conteudo .card main.corpo form input[type="text"] {
  background-color: var(--cor-background-card);
  border: none;
  outline: none;
  border-bottom: 1px solid var(--cor-texto);
  color: var(--cor-texto);
  flex: 1;
  padding: 0.5rem;
}

.conteudo .card main.corpo form input[type="submit"] {
  background-color: var(--cor-texto);
  color: var(--cor-background-card);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s all ease-in-out;
  font-size: 0.9rem;
}

.conteudo .card main.corpo form input[type="submit"]:hover {
  box-shadow: 0 0 5px var(--cor-texto);
}

@media screen and (max-width: 600px) {
  .conteudo {
    padding: 20px;
  }
  
  .conteudo .card {
    width: 100%;
    padding: 1rem;
  }
  
  .conteudo .card main.corpo form {
    flex-direction: column;
    gap: 15px;
  }

  .conteudo .card main.corpo form input[type="text"] {
    width: 100%;
  }
}

@media screen and (max-width: 400px) {
  .conteudo .card {
    padding: 0.5rem;
  }

  .conteudo .card main.corpo {
    padding: 1rem;
  }

  .conteudo .card main.corpo form input[type="submit"] {
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
  }
}
@keyframes flutuar {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

.flutuando {
  animation: flutuar 2s ease-in-out infinite;
}