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

body {
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(to right, #141e30, #243b55);
  color: #222;
  line-height: 1.6;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

header {
  background: #111;
  color: #fff;
  padding: 1.5em;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.8rem;
  letter-spacing: 2px;
  position: relative;
  color: #f44336;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.logo::after {
  content: "";
  display: inline-block;
  width: 50px;
  height: 50px;
  background-image: url(imagens/icon.png);
  background-size: contain;
  background-repeat: no-repeat;
  margin-left: 10px;
  vertical-align: middle;
}

.menu {
  list-style: none;
  display: flex;
  gap: 1.5em;
  flex-wrap: wrap;
}

.menu li a {
  text-decoration: none;
  font-weight: bold;
  color: #ddd;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.3s ease;
  position: relative;
}

.menu li a:hover {
  background: #f44336;
  color: white;
  transform: translateY(-2px);
}

.menu li a.ativo {
  background: #f44336;
  color: white;
  box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

main {
  width: 90%;
  max-width: 1200px;
  margin: 2em auto;
  padding: 2em;
  background: rgba(255,255,255,0.95);
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

section {
  margin-bottom: 2.5em;
  padding: 1.5em;
  background: white;
  border-radius: 10px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.tabela-selecao {
  margin-top: 3em;
}

h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.2rem;
  margin-bottom: 0.8em;
  color: #f44336;
  border-bottom: 2px solid #f44336;
  padding-bottom: 0.3em;
}

h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  margin: 1.5em 0 0.8em 0;
  color: #333;
}


.conteudo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2em;
  align-items: center;
  margin: 2.5em 0;
}

.imagem-esquerda {
  order: 1;
}

.texto-direita {
  order: 2;
}

.imagem-direita {
  order: 2;
}

.texto-esquerda {
  order: 1;
}

.imagem-direita, .imagem-esquerda {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.imagem-direita p, .imagem-esquerda p {
  font-size: small;
  color: #505050;
}

.conteudo-imagem {
  width: 70%;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
  display: block;
  margin: 0 auto;
}

.conteudo-imagem:hover {
  transform: scale(1.02);
}
    

@media (max-width: 800px) {
  .conteudo {
    grid-template-columns: 1fr;
  }
  
  .sobre-conteudo {
    grid-template-columns: 1fr;
  }
  
  .imagem-esquerda, .imagem-direita, .texto-esquerda, .texto-direita {
    order: 0;
  }
  
  header {
    flex-direction: column;
    text-align: center;
    gap: 1em;
  }
  
  .menu {
    justify-content: center;
  }

  .conteudo-imagem {
    width: 50%;
  }
}



p {
  margin-bottom: 1em;
  line-height: 1.7;
}

ul {
  padding-left: 1.5em;
  margin: 1em 0;
}

li {
  margin-bottom: 0.5em;
  position: relative;
  list-style-type: none;
}

li::before {
  content: "•";
  color: #f44336;
  font-weight: bold;
  font-size: large;
  display: inline-block;
  width: .9em;
  margin-left: -1em;
}

a {
  color: #f44336;
  text-decoration: none;
  transition: color 0.3s;
}

a:hover {
  color: #d32f2f;
  text-decoration: underline;
}


table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
  border-radius: 8px;
  overflow: hidden;
}

table th, table td {
  border: 1px solid #ddd;
  padding: 12px 15px;
  text-align: left;
}

table th {
  background: #f44336;
  color: white;
  font-weight: bold;
}

table tr:nth-child(even) {
  background: #f9f9f9;
}

table tr:hover {
  background: #f1f1f1;
}


dl {
  margin: 1.5em 0;
}

dt {
  font-weight: bold;
  color: #f44336;
  margin-top: 1.2em;
  font-size: 1.2em;
}

dd {
  margin-bottom: 1.5em;
  margin-left: 1.5em;
  line-height: 1.6;
}


pre {
  background: #2d2d2d;
  color: #f8f8f2;
  padding: 1.5em;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5em 0;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

code {
  font-family: 'Courier New', monospace;
  font-size: 0.95em;
}


footer {
  background: #111;
  color: #fff;
  text-align: center;
  padding: 1.5em;
  margin-top: 2em;
}




.calculadora {
  display: flex;
  flex-direction: column;
  gap: 1.5em;
  max-width: 500px;
  margin: 0 auto;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}

.form label {
  font-weight: bold;
  color: #333;
}

.form input {
  padding: 12px 15px;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form input:focus {
  border-color: #f44336;
  outline: none;
}

button {
  background: #f44336;
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 1em;
}

button:hover {
  background: #d32f2f;
  transform: translateY(-2px);
}

.result {
  text-align: center;
  margin-top: 2em;
  padding: 1.5em;
  background: #f8f9fa;
  border-radius: 10px;
  border-left: 5px solid #f44336;
}

.result h4 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  color: #f44336;
  margin-bottom: 0.5em;
}

#rm-valor {
  font-size: 2.5rem;
  font-weight: bold;
  color: #f44336;
  margin: 0.5em 0;
}

.explicacao {
  background: #e8f5e9;
  padding: 1px 3%;
  border-radius: 10px;
  margin-top: 2em;
}

#voltar-topo {
  background-color: rgb(58, 58, 58);
  border-radius: 20%;
  border: 2px solid rgb(6.7, 6.7, 6.7, .6);
  position: fixed;
  bottom: 15px;
  right: 15px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.3s ease;
  background-image: url(imagens/seta_cima.png);
  background-size: 60%; 
  background-repeat: no-repeat;
  background-position: center;
  width: 40px;
  height: 40px;
}

#voltar-topo:hover {
  background-color: rgb(177, 176, 176);
  transform: translateY(-2px);
}

.logo:hover::after {
  transform: rotate(720deg);
  transition: transform 1s ease;
}

@media (max-width: 1920px) {
  dl dd img {
    max-width: 600px;
    height: auto;
    display: block;
    margin: 10px 0;
    border-radius: 8px;
  }
}

@media (max-width: 820px) {
  dl dd img {
    max-width: 500px;
    height: auto;
    display: block;
    margin: 10px 0;
    border-radius: 8px;
  }
}

@media (max-width: 700px) {
  dl dd img {
    max-width: 400px;
    height: auto;
    display: block;
    margin: 10px 0;
    border-radius: 8px;
  }
}

dl dd img {
  transition: transform 0.3s ease;
}

dl dd img:hover {
  transform: scale(1.02);
}