:root {
  --primary-color: #4285f4;
  --secondary-color: #34a853;
  --accent-color: #ea4335;
  --text-color: #333;
  --light-gray: #f5f5f5;
  --dark-gray: #757575;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
  background-color: #171f2b;
  color: var(--text-color);
  line-height: 1.6;
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1,
h2 {
  color: var(--primary-color);
  margin-bottom: 20px;
  text-align: center;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

input[type='text'],
input[type='number'],
select,
textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.radio-group {
  display: flex;
  gap: 15px;
  margin-top: 8px;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 400;
  cursor: pointer;
}

button {
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 12px 20px;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
  width: 100%;
  font-weight: 600;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #3367d6;
}

.loading {
  text-align: center;
  margin: 30px 0;
}

.spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top: 4px solid var(--primary-color);
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 15px;
}

@keyframes spin {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}

.results {
  margin-top: 30px;
  padding: 20px;
  background-color: var(--light-gray);
  border-radius: 8px;
}

.hidden {
  display: none;
}

.error {
  color: var(--accent-color);
  font-weight: 700;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.feature-card {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  color: var(--text-color);
  transition: all 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.feature-card h2 {
  color: var(--primary-color);
  margin-bottom: 10px;
  text-align: left;
}

.feature-card p {
  color: var(--dark-gray);
}

.back-button {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}
.back-button:hover {
  color: #3367d6;
}
@media (max-width: 600px) {
  .container {
    padding: 20px;
  }
  .radio-group {
    flex-direction: column;
    gap: 8px;
  }
}