.set1 {
  display: none;
  width: 300px;
  padding: 20px;
  margin: 20px auto;

  background: rgb(255, 255, 255);
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);

  text-align: center;
}

.set1.active {
    display: block;
}

body {
  text-align: center;
  background:
    radial-gradient(
      circle at top,
      #6d9eb6,
      #385566,
      #1d2b36
    );

    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    padding: 20px
  
}

button {
    background:
      linear-gradient(
        135deg,
        #0ea5e9,
        #0369a1
      );
    color: white;

    box-shadow: 
      0 4px 12px rgba(0,0,0,0.15);
    font-weight: 600;

    letter-spacing: 0.5px;

    padding: 10px 15px;

    border: none;
    border-radius: 8px;

    font-size: 16px;

    cursor: pointer;

    transition: all 0.2s ease;

    margin-top: 15px;
    
}

button:hover {
  background-color: darkblue;
  transform: translateY(-2px);

  box-shadow:
    0 8px 18px rgba(0,0,0,0.2);
}

button:active {
  transform: scale(0.95);
}


.container1 {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}



.planet-img {
   width: 100%;
   height: 100%;
   object-fit: cover;
}

.set2 {
  display: none;
  width: 300px;
  padding: 20px;
  margin: 20px auto;

  background: rgb(255, 255, 255);
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);

  text-align: center;
}

.set2.active {
    display: block;
}

.container2 {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.set3 {
  display: none;
  width: 300px;
  padding: 20px;
  margin: 20px auto;

  background: rgb(255, 255, 255);
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);

  text-align: center;
}

.set3.active {
    display: block;
}

.container3 {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}











.quiz-box {
  max-width: 400px;

  background: white;

  padding: 30px;

  border-radius: 20px;

  border: none;

  box-shadow:
    0 10px 30px rgba(0,0,0,0.12);

  backdrop-filter: blur(10px);

  margin: 50px auto;
}



#result {
  margin-top: 15px;
  font-weight: 700;
  font-size: 1.4rem;
  color: #0881ad;

}

#status {
  margin-top: 12px;

  color: #475569;

  line-height: 1.6;
}

.question {
  display: none;
  animation: fadeIn .3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.question.active {
  display: block;
}

#submitBtn {
  display: none;
}

.q1:hover {
  background-color: darkblue;
}

.question.active input[type="radio"] {
  display: none;
}

.question.active label {
    display: block;
    padding: 14px 18px;
    border: 2px solid #ddd;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.question.active label:hover {
  border-color: #3b82f6;
  background: #f8fbff
}

.question.active label:has(input[type="radio"]:checked) {
  border-color: #0881ad;
  background: #e6f7ff;
  box-shadow: 0 4px 12px rgba(8,129,173,0.2);
}

.question p {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1e3a5f;
  margin-bottom: 20px;
  line-height: 1.4;
}

.question label {
  display: block;
  padding: 16px 20px;
  margin: 10px 0;

  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 14px;

  box-shadow: 0 2px 6px rgba(0,0,0,0.05);

  transition: all 0.2s ease;
}

h1 {
  text-align: center;
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: white;
  text-shadow: 2px 2px 6px rgba(0,0,0,0.2);
  background: linear-gradient(
    90deg,
    #ffffff,
    #cce7ff
  );

  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 1.2rem;
  font-weight: 500;
  text-align: center;
  color: #dceef7;
  margin-bottom: 30px;
}

h3 {
  font-size: 1.8rem;
  color: #0881ad;
  font-weight: 700;
  letter-spacing: 1px;
  margin-top: 10px;
}

.set1 p,
.set2 p,
.set3 p {
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.set1:hover,
.set2:hover,
.set3:hover {
  transform: translateY(-4px);

  box-shadow:
    0 12px 25px rgba(0,0,0,0.15);
}

.progress {
  width: 100%;
  height: 8px;

  background: #e2e8f0;

  border-radius: 999px;

  overflow: hidden;

  margin-bottom: 20px;
}

.progress-fill {
  width: 33%;

  height: 100%;

  background: #0881ad;

  transition: width 0.3s ease;
}