* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
            line-height: 1.6;
            color: #2d3748;
            background: #f9fafb;
        }
        
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        header {
            background: white;
            padding: 20px 0;
            border-bottom: 1px solid #e2e8f0;
            margin-bottom: 40px;
        }
        
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: #2563eb;
        }
        
        .page-section {
            background: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
            margin-bottom: 30px;
        }
        
        h1 {
            font-size: 32px;
            font-weight: 700;
            color: #1a202c;
            margin-bottom: 15px;
        }
        
        .subtitle {
            font-size: 18px;
            color: #4a5568;
            line-height: 1.7;
        }
        
        h2 {
            font-size: 24px;
            font-weight: 700;
            color: #1a202c;
            margin-bottom: 20px;
        }
        
        .instructions-list {
            list-style: none;
            margin: 20px 0;
        }
        
        .instructions-list li {
            padding: 12px 0;
            padding-left: 30px;
            position: relative;
            color: #4a5568;
            font-size: 16px;
        }
        
        .instructions-list li:before {
            content: "•";
            position: absolute;
            left: 10px;
            color: #2563eb;
            font-size: 20px;
        }
        
        .cta-button {
            display: inline-block;
            background: #2563eb;
            color: white;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 6px;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 20px;
        }
        
        .cta-button:hover {
            background: #1d4ed8;
        }
        
        .progress-bar {
            background: #e5e7eb;
            height: 8px;
            border-radius: 4px;
            margin-bottom: 20px;
            overflow: hidden;
        }
        
        .progress-fill {
            background: #2563eb;
            height: 100%;
            transition: width 0.3s ease;
        }
        
        .progress-text {
            font-size: 14px;
            color: #6b7280;
            margin-bottom: 10px;
        }
        /* .question-section:not(:first-child) {
             display: none;
        } */
        
        .question-section {
            display: none;
        }
        
        .question-section.active {
            display: block;
        }
        
        .question-text {
            font-size: 20px;
            color: #1a202c;
            font-weight: 600;
            margin-bottom: 10px;
        }
        
        .question-helper {
            font-size: 14px;
            color: #6b7280;
            margin-bottom: 30px;
            font-style: italic;
        }
        
        .options-container {
            margin: 25px 0;
        }
        
        .option {
            background: #f9fafb;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            padding: 16px 20px;
            margin-bottom: 12px;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 16px;
        }
        
        .option:hover {
            border-color: #2563eb;
            background: #eff6ff;
        }
        
        .option.selected {
            border-color: #2563eb;
            background: #eff6ff;
        }
        
        .encouragement {
            background: #f0f9ff;
            border-left: 4px solid #2563eb;
            padding: 16px 20px;
            margin: 25px 0;
            font-size: 15px;
            color: #1e40af;
        }
        
        .completion-section {
            text-align: center;
            display: none;
        }
        
        .completion-section.active {
            display: block;
        }
        
        .completion-icon {
            width: 60px;
            height: 60px;
            background: #10b981;
            border-radius: 50%;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: white;
        }
        
        .completion-list {
            text-align: left;
            max-width: 500px;
            margin: 30px auto;
            list-style: none;
        }
        
        .completion-list li {
            padding: 10px 0;
            padding-left: 30px;
            position: relative;
            color: #4a5568;
            font-size: 16px;
        }
        
        .completion-list li:before {
            content: "✓";
            position: absolute;
            left: 5px;
            color: #10b981;
            font-weight: bold;
        }
        
        .loading-section {
            text-align: center;
            display: none;
        }
        
        .loading-section.active {
            display: block;
        }
        
        .spinner {
            border: 4px solid #e5e7eb;
            border-top: 4px solid #2563eb;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            animation: spin 1s linear infinite;
            margin: 0 auto 20px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .loading-text {
            font-size: 18px;
            color: #4a5568;
            margin-bottom: 10px;
        }
        
        .loading-subtext {
            font-size: 14px;
            color: #6b7280;
        }
        
        .nav-buttons {
            display: flex;
            justify-content: flex-end;
            margin-top: 30px;
            gap: 15px;
        }
        
        .btn-next {
            background: #2563eb;
            color: white;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 6px;
            border: none;
            cursor: pointer;
            transition: background 0.2s;
        }
        
        .btn-next:hover:not(:disabled) {
            background: #1d4ed8;
        }
        
        .btn-next:disabled {
            background: #cbd5e0;
            cursor: not-allowed;
        }
        
        .intro-note {
            background: #fffbeb;
            border-left: 4px solid #f59e0b;
            padding: 16px 20px;
            margin-top: 25px;
            font-size: 15px;
            color: #92400e;
        }

        .exam-form {
  background: white;
  padding: 30px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

exam-form button:disabled {
  background: gray;
  cursor: not-allowed;
  opacity: 0.7;
}
.subtitle strong {
  font-weight: 600;
  color: #111827;
}
.exam-form h2 {
  text-align: center;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 5px;
  color: #555;
}

.form-group input {
  width: 100%;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
  transition: 0.3s;
}

.form-group input:focus {
  border-color: #4a90e2;
  outline: none;
  box-shadow: 0 0 5px rgba(74, 144, 226, 0.3);
}

button {
  width: 100%;
  padding: 12px;
  background: #4a90e2;
  border: none;
  border-radius: 6px;
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #357abd;
}