:root {
    --primary-color: #2563eb;
    --background-color: #f8fafc;
    --card-background: #ffffff;
    --text-color: #1e293b;
    --description-color: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding-bottom: 100px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: var(--primary-color);
}

header p {
    color: var(--description-color);
}

.card {
    background: var(--card-background);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card h2 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.description {
    font-size: 0.9rem;
    color: var(--description-color);
    margin-bottom: 16px;
}

select {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    background-color: #fff;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

select:focus {
    border-color: var(--primary-color);
}

.score-display {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--primary-color);
    color: white;
    padding: 20px;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

.score-content {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 12px;
}

.label {
    font-size: 1.1rem;
    font-weight: 500;
}

.score {
    font-size: 2.5rem;
    font-weight: 800;
}

.max-score {
    font-size: 1rem;
    opacity: 0.8;
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    .card {
        padding: 20px;
    }
    
    .score {
        font-size: 2rem;
    }
}