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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f5f5;
    padding: 2rem;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    margin-bottom: 1.5rem;
    text-align: center;
    color: #333;
}

.input-group {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.input-group label {
    min-width: 160px;
    color: #444;
}

input[type="number"],
select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    width: 100px;
}

input[type="checkbox"] {
    margin-right: 0.5rem;
}

.results {
    margin-top: 2rem;
}

h2 {
    margin-bottom: 0.75rem;
    color: #333;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background: #f9f9f9;
    font-weight: 600;
    color: #555;
}

td:last-child {
    text-align: right;
    font-family: monospace;
    font-size: 1.1rem;
}

td.probability {
    font-size: 0.85rem;
    font-family: sans-serif;
}

td.probability.d1-prob {
    color: #999;
}