/* Base Styles */
body {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, sans-serif;
}

/* Common Utility Classes */
.hidden {
  display: none;
}

/* Container Styles */
.test-container {
  background: white;
  border-radius: 15px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.results-container {
  background: white;
  border-radius: 15px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.participant-form {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.results-card {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  text-align: center;
}

/* Header Styles */
.test-header {
  background: linear-gradient(135deg, #4f6cc9 0%, #5a67d8 100%);
  color: white;
  padding: 20px 30px;
}

.results-header {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  padding: 30px;
  text-align: center;
}

.results-header.success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

/* Progress and Navigation */
.question-progress {
  background: #f8f9fa;
  padding: 15px 30px;
  border-bottom: 1px solid #e9ecef;
}

.progress-bar {
  transition: width 0.3s ease;
}

.question-navigation {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 20px;
}

/* Timer */
.timer-box {
  background: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 8px;
  padding: 10px 15px;
  font-weight: 600;
}