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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

h1 {
    color: #667eea;
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 25px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.checkbox-label span {
    color: #555;
}

input[type="text"],
input[type="number"],
textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1em;
    font-family: inherit;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #667eea;
}

.question-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    border: 2px solid #e9ecef;
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.question-number {
    font-weight: 700;
    color: #667eea;
    font-size: 1.2em;
}

.btn-remove {
    background: #dc3545;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9em;
}

.btn-remove:hover {
    background: #c82333;
}

.answers-container {
    margin-top: 15px;
}

.answer-item {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}

.answer-item input[type="text"] {
    flex: 1;
}

.answer-item input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.answer-item button {
    background: #6c757d;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
}

.answer-item button:hover {
    background: #5a6268;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #28a745;
    color: white;
}

.btn-secondary:hover {
    background: #218838;
}

.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.add-question-btn {
    width: 100%;
    margin-top: 20px;
}

.quiz-code-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    max-width: 500px;
}

.quiz-code {
    font-size: 3em;
    font-weight: 700;
    color: #667eea;
    letter-spacing: 10px;
    margin: 20px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.correct-indicator {
    color: #28a745;
    font-size: 0.9em;
    margin-left: 5px;
}