/* Stile Principio Induzione2*/
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
}

.container {
  max-width: 80%; /* Modificato per un contenitore più grande e responsivo */
  margin: 0 auto;
  background: white;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  overflow: hidden;
}

.header {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
  padding: 30px;
  text-align: center;
}

.header h1 {
  margin: 0;
  font-size: 2.5em;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.content {
  padding: 30px;
}

.section {
  margin-bottom: 20px;
  border: 2px solid #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.section:hover {
  border-color: #4CAF50;
  box-shadow: 0 5px 15px rgba(76, 175, 80, 0.2);
}

.section-button {
  width: 100%;
  background: linear-gradient(135deg, #f8f9fa, #e9ecef);
  border: none;
  padding: 20px;
  font-size: 1.3em;
  font-weight: bold;
  color: #333;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-button:hover {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
}

.section-button.active {
  background: linear-gradient(135deg, #4CAF50, #45a049);
  color: white;
}

.arrow {
  transition: transform 0.3s ease;
  font-size: 1.2em;
}

.arrow.rotated {
  transform: rotate(180deg);
}

.section-content {
  display: none;
  padding: 25px;
  background: #fafafa;
  border-top: 1px solid #e0e0e0;
  line-height: 1.8;
}

.section-content.active {
  display: block;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.formula {
  background: #fff;
  padding: 15px;
  border-left: 4px solid #4CAF50;
  margin: 15px 0;
  border-radius: 5px;
  font-family: 'Courier New', monospace;
  font-size: 1.1em;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.example {
  background: #e8f5e8;
  padding: 20px;
  border-radius: 8px;
  margin: 15px 0;
  border: 1px solid #c8e6c9;
}

.example h3 {
  color: #2e7d32;
  margin-top: 0;
  border-bottom: 2px solid #2e7d32;
  padding-bottom: 5px;
}

.step {
  background: #fff3e0;
  padding: 15px;
  margin: 10px 0;
  border-radius: 5px;
  border-left: 3px solid #ff9800;
}

.step img {
  max-width: 100%; /* Rendi l'immagine responsiva */
  height: auto; /* Mantieni le proporzioni */
  display: block; /* Rimuovi spazio extra sotto l'immagine */
  margin-top: 10px; /* Spazio sopra l'immagine */
  border-radius: 5px; /* Angoli arrotondati per l'immagine */
}

.example img {
  max-width: 100%; /* Rendi l'immagine responsiva */
  height: auto; /* Mantieni le proporzioni */
  display: block; /* Rimuovi spazio extra sotto l'immagine */
  margin: 15px auto; /* Centra l'immagine e aggiungi spazio */
  border-radius: 5px; /* Angoli arrotondati per l'immagine */
  box-shadow: 0 4px 8px rgba(0,0,0,0.1); /* Ombra leggera */
}

/* Stili per h2 - titoli principali delle sezioni */
h2 {
  color: #4CAF50;
  border-bottom: 2px solid #4CAF50;
  padding-bottom: 5px;
  font-size: 1.8em;
  margin-top: 0;
}

/* Stili per h3 - sottotitoli */
h3 {
  color: #2e7d32;
  font-size: 1.4em;
  margin-top: 15px;
}

.highlight {
  background: #fff176;
  padding: 2px 6px;
  border-radius: 3px;
}

/* Stili per l'header */
.left-image, .right-image {
  max-height: 60px;
  height: auto;
  width: auto;
  max-width: 48%;
  object-fit: contain;
}

.header-box {
  width: 100%;
  border: 2px dashed #28a745;
  box-sizing: border-box;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: white;
  min-height: 80px;
  border-radius: 8px;
  margin-bottom: 25px;
  background: white;
  flex-wrap: wrap;
  gap: 10px;
}

/* Stili per il footer */
.footer {
  text-align: center;
  padding: 20px;
  margin-top: 30px;
}

.separator {
  height: 2px;
  background: linear-gradient(to right, transparent, #ffffff, transparent);
  margin: 20px auto;
  width: 80%;
  opacity: 0.8;
}

/* Stili per la stampa */
@media print {
  .section-button {
    display: none !important;
  }
  
  .section-content {
    display: block !important;
    border: none !important;
  }
  
  .footer {
    display: none !important;
  }
  
  .separator {
    display: none !important;
  }
  
  body {
    background: white !important;
  }
  
  .container {
    box-shadow: none !important;
  }
}