:root {
    --color-primary: #8B0000;
    --color-primary-light: #a52a2a;
    --color-secondary: #D4AF37;
    --color-text: #1A1A1A;
    --color-text-light: #4d4d4d;
    --color-bg: #FFFFFF;
    --color-card: #FAFAFA;
    --color-light: #F5F5F5;
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Inter', sans-serif;
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --border-radius-lg: 12px;
    --space-lg: 2rem;
    --space-md: 1.5rem;
    --space-sm: 1rem;
}

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-light);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.quiz-header {
    background: var(--color-primary);
    color: white;
    padding: 1rem 0;
}

.quiz-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-link {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: opacity 0.3s ease;
    font-size: 14px;
}

.back-link:hover {
    opacity: 0.8;
}

.quiz-header h1 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
}

.quiz-main {
    padding: var(--space-lg) 0;
}

.quiz-container {
    background: var(--color-bg);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    max-width: 700px;
    margin: 0 auto;
}

.quiz-header-section {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.quiz-header-section h2 {
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    font-size: 1.6rem;
    font-family: var(--font-heading);
    font-weight: 600;
}

.quiz-header-section p {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
}

.quiz-stats {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-md);
    font-size: 14px;
    color: var(--color-text-light);
}

.quiz-question {
    margin-bottom: var(--space-md);
}

.quiz-question h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    line-height: 1.4;
    font-weight: 500;
}

.quiz-options {
    display: grid;
    gap: 0.75rem;
}

.quiz-option {
    display: flex;
    align-items: flex-start;
    padding: 0.75rem;
    border-radius: 6px;
    background: var(--color-card);
    cursor: pointer;
    border: 1px solid rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.quiz-option:hover {
    background: rgba(139, 0, 0, 0.05);
    border-color: var(--color-primary-light);
}

.quiz-option input {
    margin-right: 0.75rem;
    margin-top: 0.1rem;
}

.option-letter {
    font-weight: 600;
    margin-right: 0.75rem;
    color: var(--color-primary);
    min-width: 1.5rem;
    font-size: 14px;
}

.option-text {
    font-size: 14px;
    line-height: 1.4;
}

.quiz-feedback {
    padding: var(--space-md);
    border-radius: 6px;
    margin-bottom: var(--space-md);
    text-align: center;
    font-size: 14px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-card);
}

.quiz-feedback.correct {
    background: rgba(0, 128, 0, 0.1);
    color: green;
}

.quiz-feedback.incorrect {
    background: rgba(255, 0, 0, 0.1);
    color: darkred;
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-text);
}

.btn-secondary:hover {
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: white;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }
    
    .quiz-header .container {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
    
    .quiz-header h1 {
        font-size: 1.5rem;
    }
    
    .quiz-container {
        padding: var(--space-md);
        margin: 0 0.5rem;
    }
    
    .quiz-header-section h2 {
        font-size: 1.4rem;
    }
    
    .quiz-question h3 {
        font-size: 1rem;
    }
    
    .quiz-navigation {
        flex-direction: column;
    }
    
    .quiz-stats {
        flex-direction: column;
        gap: 0.25rem;
        text-align: center;
    }
    
    .option-text {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .quiz-container {
        margin: 0 0.25rem;
        padding: 1rem;
    }
    
    .quiz-question h3 {
        font-size: 0.95rem;
    }
    
    .option-text {
        font-size: 12px;
    }
}

/* Additional compact mode for very small screens */
@media (max-height: 600px) {
    :root {
        --space-lg: 1rem;
        --space-md: 0.75rem;
        --space-sm: 0.5rem;
    }
    
    .quiz-main {
        padding: 1rem 0;
    }
    
    .quiz-feedback {
        min-height: 40px;
        padding: 0.75rem;
    }
}