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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to bottom, #e6f0ff, #f5f5f5);
  color: #333;
}


.container {
  max-width: 900px;
  margin: 40px auto;
  padding: 30px 40px;
  background-color: #ffffff;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}


.header {
  text-align: center;
  margin-bottom: 40px;
}

.logo {
  width: 90px;
  height: auto;
  display: block;
  margin: 0 auto 15px;
}

h1 {
  font-size: 2rem;
  color: #0047b3; 
  font-weight: 600;
}


fieldset {
  border: 1px solid #cce0ff;
  margin-bottom: 25px;
  padding: 20px 25px;
  border-radius: 10px;
  background-color: #f9faff;
}

legend {
  font-weight: bold;
  padding: 0 10px;
  font-size: 1.1rem;
  color: #0047b3;
}


.question {
  margin-bottom: 20px;
}

.question-text {
  margin-bottom: 12px;
  display: block;
  font-weight: 500;
  font-size: 0.95rem;
}


.options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.options label {
  flex: 1;
  padding: 12px 10px;
  text-align: center;
  border: 2px solid #cce0ff;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  background-color: #ffffff;
}

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


.options label:hover {
  transform: translateY(-2px);
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}


.options input[type="radio"]:checked + label {
  background-color: #8db6e0;
  color: #fff;
  border-color: #eef3f8;
  box-shadow: 0 4px 12px rgba(30, 173, 209, 0.15);
}


.submit-area {
  text-align: center;
  margin-top: 30px;
}

.btn-submit {
  background-color: #007BFF;
  color: #fff;
  border: none;
  padding: 14px 30px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  transition: background-color 0.3s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(0, 71, 179, 0.4);
}

.btn-submit:hover {
  background-color: #908792;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 71, 179, 0.5);
}


.thankyou {
  text-align: center;
  padding: 60px 20px;
}

.thankyou h2 {
  color: #0047b3;
  margin-bottom: 20px;
}

.thankyou p {
  font-size: 1.05rem;
  color: #555;
}

.thankyou .logo {
  width: 100px;
  margin-bottom: 25px;
}