body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: no-repeat center center fixed ; 
  background-color: #f5f5e9;
  position: relative; 
  z-index: 0;
}

body::before { 
    content: ""; 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background: url('img/index_back.jpg') no-repeat center center fixed;
    background-size: cover; 
    opacity: 0.5; 
    z-index: -1; 
}

/* Logo */
.logo {
  display: block;
  margin: 20px auto;
  max-width: 200px;
}

/* Banner */
.banner {
  background-color: #f5f5dc; /* bege */
  color: #654321;           /* castanho */
  text-align: center;
  padding: 20px;
  font-size: 2em;
  font-weight: bold;
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

/* Secções */
main {
  padding: 20px;
  background: rgba(255, 255, 255, 0.8);
  margin: 20px;
  border-radius: 10px;
}

/* Floating Action Button */
.fab-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  text-align: center
}

.fab {
  background-color: #654321;
  color: white;
  border: none;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0,0,0,0.3);
  
}

.fab-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: none;
  position: absolute;
  bottom: 70px;
  right: 0;
}

.fab-menu li {
  margin: 10px 0;
}

.fab-menu a {
  background: #f5f5dc;
  color: #654321;
  padding: 10px 15px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.fab-menu.show {
  display: block;
}

h1{
  color: #654321;
  font-size: 30px;
  font-family: Cambria;
}

h2{
  color: #654321;
  font-size: 24px;
  font-family: Harrington;
}

.backtxt {
  background-color: #f5f5dc; /* bege */
  color: #654321;           /* castanho */
  text-align: center;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);

}

.preco{
  position: relative;
  text-align: center;
}

.centered {
  font-family: Cambria;
  position: absolute;
  font-size: 24px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.tabela-artigos th, .tabela-artigos td { 
  margin: 1% auto; 
  text-align: center; 
  border: 20px solid transparent; 
  border-image-source: url('img/border.png'); 

  border-image-repeat: round;

}