:root {
    --bg-color: #f5f5f5;
    --text-color: #333;
    --primary: #2AABEE;
    --secondary: #229ED9;
    --success: #4CAF50;
    --border: #ddd;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 16px;
    background: var(--bg-color);
    color: var(--text-color);
}

.container {
    max-width: 400px;
    margin: 0 auto;
}

h1 {
    font-size: 24px;
    text-align: center;
    margin-bottom: 24px;
    color: var(--primary);
}

.selector-group {
    margin-bottom: 24px;
}

.selector-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.button-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.option-btn {
    flex: 1;
    min-width: 100px;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: white;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.option-btn:hover {
    border-color: var(--primary);
}

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

.recommend-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.recommend-btn:hover:not(:disabled) {
    background: var(--secondary);
}

.recommend-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.result-card {
    margin-top: 24px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.result-card h2 {
    margin: 0 0 16px 0;
    font-size: 20px;
    color: var(--success);
}

.recommendation-item {
    margin: 12px 0;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
}

.recommendation-item strong {
    display: block;
    margin-bottom: 4px;
    color: var(--primary);
}

.recommendation-item p {
    margin: 4px 0;
    font-size: 14px;
}