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

body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.8;
  background-color: var(--bg);
  color: white;
}

main {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
  padding-top: 120px;
}

.headerLezione {
  text-align: left;
}

.headerLezione h1 {
  font-size: 50px;
  margin-bottom: 10px;
  color: white;
}

.headerLezione h3 {
  font-size: 15px;
  color: gray;
}

.headerLezione .info-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin: 20px 0;
}

.badge {
  background-color: #252525;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  color: #8f00ff;
  border: 1px solid #333;
  font-weight: bold;
}

.headerLezione img,
video,
.contenutoLezione img {
  width: 100%;
  height: auto;
  border-radius: 25px;
  margin-top: 20px;
}

.contenutoLezione {
  margin-top: 40px;
}

.contenutoLezione h2 {
  position: relative;
  display: inline-block;
  margin-top: 45px;
  margin-bottom: 25px;
  font-size: 28px;
  color: #ffffff;
}

.contenutoLezione h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #8f00ff, transparent);
  border-radius: 2px;
}

.contenutoLezione p, 
.contenutoLezione li {
  color: #cccccc;
  font-size: 18px;
  margin-bottom: 25px;
  text-align: left;
}

.domande {
  margin-top: 60px;
  margin-bottom: 40px;
  padding: 30px;
  background: linear-gradient(145deg, #1a1a1a, #151515);
  border-left: 4px solid var(--violet);
  border-radius: 15px;
  color: white;
}

.domande h2 {
  margin-bottom: 25px;
  font-size: 28px;
}

.domanda {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 20px;
}

.domanda h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.radio-container {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px;
  background-color: #1e1e1e;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.radio-container:hover {
  background-color: #252525;
}

.radio-container input[type="radio"] {
  min-width: 18px;
  height: 18px;
  margin-top: 4px;
  accent-color: #8f00ff;
}

.radio-container span {
  font-size: 16px;
  line-height: 1.4;
  color: #e0e0e0;
}

button {
  padding: 10px 20px;
  margin-top: 15px;
  background-color: #8f00ff;
  color: white;
  border: solid 2px var(--violet);
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  background-color: var(--violetGlass1);
  box-shadow: 0 0px 8px var(--violet);
  transform: scale(1.05);
  backdrop-filter: blur(4px);
}

button:active {
  transform: scale(0.99);
}

@media (max-width: 768px) {
  main {
    padding: 20px;
    padding-top: 120px;
  }
  .headerLezione h1 {
    font-size: 32px;
  }
  .headerLezione h3 {
    font-size: 12px;
  }
  .contenutoLezione h2 {
    font-size: 22px;
  }
  .contenutoLezione p {
    font-size: 16px;
  }
  .domande h2 {
    font-size: 22px;
  }
  .domande h3 {
    font-size: 18px;
  }
}