:root {
  --primary-color: #3a86ff;
  --secondary-color: #8338ec;
  --background-color: #f8f9fa;
  --text-color: #212529;
  --border-color: #dee2e6;
  --success-color: #38b000;
  --error-color: #d90429;
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background-color: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

#title {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-size: 2.5rem;
}

#description {
  text-align: center;
  margin-bottom: 30px;
  color: #6c757d;
  font-size: 1.2rem;
}

#survey-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 15px;
}

label {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-color);
}

input[type="text"],
input[type="email"],
input[type="number"],
select,
textarea {
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-size: 16px;
  transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.2);
}

.radio-group,
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 15px;
}

.radio-option,
.checkbox-option {
  display: flex;
  align-items: center;
  gap: 10px;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

#submit {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 20px;
  font-size: 18px;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s;
  margin-top: 10px;
}

#submit:hover {
  background-color: var(--secondary-color);
}

@media (max-width: 768px) {
  .container {
    padding: 20px;
  }

  #title {
    font-size: 2rem;
  }

  #description {
    font-size: 1rem;
  }
}