.header_sfide_2 {
  position: relative;
  padding-top: 110px; /* Schede circa 30px sotto la linea dell'header */
  padding-bottom: 150px; /* 🔹 Mantiene spazio per il contenuto */
  background-color: #EAEAEA;
  
}

.header_sfide_3 {
  position: relative;
  width: 100%;
  height: 100%;
  
}

.header_sfide_ul {
  position: fixed;
  top: 33px;
  left: 0;
  width: 100%;
  background-color: white;
  padding: 10px 0;
  display: flex;
  justify-content: center;
  list-style-type: none;
  border-bottom: 2px solid rgba(204, 204, 204, var(--border-opacity, 1)); /* 🔹 Usa la variabile CSS */
  z-index: 30;
}

.header_sfide_ul li {
  position: relative;
  padding: 10px;
  cursor: pointer;
  top: 10px;
  
}

.header_sfide_ul li.active_sfide::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background-color: #EAEAEA;
  z-index: 6;
}

.header_sfide_ul li.active_sfide {
  position: relative;
  background-color: #EAEAEA;
  border-radius: 8px 8px 0 0;
  z-index: 5;
}

.header_sfide_1_li, .header_sfide_2_li, .header_sfide_3_li, .header_sfide_4_li {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  font-weight: bold;
  color: orange;
  background-color: white;
  border: none;
}

.header_sfide_1_li.active_sfide, 
.header_sfide_2_li.active_sfide, 
.header_sfide_3_li.active_sfide, 
.header_sfide_4_li.active_sfide {
  color: #6C89C6;
  border: 2px solid #ccc;
  background-color: #EAEAEA;
  border-bottom: 0px solid #EAEAEA !important;
  border-radius: 2px 2px 0 0;
  position: relative;
  z-index: 5;
}

.contenuto_scheda_sfide {
  display: none;
  position: relative;
  z-index: 1;
  width: 80%;
  max-width: 600px;
  margin: 0 auto;
  background-color: #EAEAEA;
  padding: 20px;
  text-align: center;
  min-height: 200px;
  max-height: none;
  overflow: visible;
}

.contenuto_scheda_sfide.attiva_sfide {
  display: block;
}

footer {
  position: relative;
  z-index: 20; /* Maggiore rispetto alle schede */
  background: #f5f5f5;
  padding: 20px;
  text-align: center;
}