:root {
  --cor-principal: #2f86d6;
  --cor-secundario-contraste: #ffca3a;
  --cor-secundaria: #ffa500;
  --menu-bg: rgba(47, 134, 214, 0.95);
  --text-color: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.secao-banner {
  background-color: var(--cor-principal);
  padding: 100px 0px;
}

body {
  background-color: var(--cor-secundario-contraste);
}

/* Menu Sidebar */
.menu {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 80px;
  background-color: var(--menu-bg);
  backdrop-filter: blur(10px);
  overflow-x: hidden;
  transition: width 0.3s ease;
  box-shadow: 2px 0 15px rgba(47, 134, 214, 0.3);
  z-index: 1000;
  border-right: 2px solid var(--cor-secundario-contraste);
}

.conteudo {
  margin-left: 90px;
  transition: margin-left 0.3s ease;
}

.menu:hover {
  width: 250px;
}

.menu ul {
  list-style: none;
  padding: 20px 0;
  margin: 0;
}

.menu li {
  margin: 15px 0;
  text-align: left;
  padding: 0 15px;
}

.menu a {
  text-decoration: none;
  font-size: 1.1rem;
  color: var(--text-color);
  display: block;
  padding: 12px 20px;
  transition: all 0.3s ease;
  border-radius: 10px;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.menu a:hover {
  color: var(--cor-secundario-contraste);
  background-color: rgba(255, 202, 58, 0.1);
  transform: translateX(5px);
}

.menu a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--cor-secundario-contraste);
  transition: width 0.3s ease;
}

.menu a:hover::before {
  width: 100%;
}

.menu-icon {
  font-size: 1.5rem;
  margin-right: 15px;
  display: inline-block;
  width: 30px;
  text-align: center;
}

.menu-text {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.menu:hover .menu-text {
  opacity: 1;
}

.container-banner {
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
}

.container-texto {
  color: #fff;
  padding: 10px 20px;
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
}

.container-banner-imagem {
  flex-grow: 1;
  flex-shrink: 1;
  flex-basis: 468px;
}

.container-banner-imagem img {
  width: 100%;
  height: 100%;
}

.secao-cards {
  background-color: var(--cor-secundaria);
  padding: 100px 0px;
  margin: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.container-cards-pais,
.container-cards-filhos {
  max-width: 1024px;
  padding: 40px 0px;
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
  gap: 20px;
}

.card {
  width: 280px;
  height: 450px;
  background-color: var(--cor-principal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0 0 0;
  text-align: center;
}

.card-info {
  background-color: var(--cor-secundario-contraste);
  flex-grow: 1;
}

.container-card-imagem {
  height: 150px;
}

.container-card-imagem img {
  width: 100%;
  height: 100%;
}

h2 {
  font-size: 30px;
  text-transform: uppercase;
  text-align: center;
}

h3 {
  font-size: 26px;
  margin: 60px 0;
}

#fonte {
  text-align: right;
}

/* Media Queries */
@media (max-width: 768px) {
  .menu {
    width: 60px;
  }

  .menu:hover {
    width: 200px;
  }

  .conteudo {
    margin-left: 70px;
  }

  .secao-cards {
    margin: 20px;
    padding: 50px 0px;
  }

  .container-cards-pais,
  .container-cards-filhos {
    padding: 20px 0px;
  }

  .card {
    width: 250px;
    height: 400px;
  }
}

@media (max-width: 480px) {
  .menu {
    width: 50px;
  }

  .menu:hover {
    width: 180px;
  }

  .conteudo {
    margin-left: 60px;
  }

  .secao-banner {
    padding: 50px 0px;
  }

  .container-texto {
    flex: 1 1 250px;
    padding: 10px;
  }

  .card {
    width: 220px;
    height: 380px;
  }
}