/* ===== スマホ最適化レイアウト ===== */

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    padding: 16px;
    margin: 0;
    background: #f9f9f9;
}

h1, h2 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

form {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

input[type="text"] {
    flex: 1;
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
}

button {
    padding: 10px 14px;
    font-size: 0.95rem;
    border: none;
    background-color: #4A90E2;
    color: white;
    border-radius: 8px;
}

button:hover {
    opacity: 0.9;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    border-bottom: 1px solid #ddd;
    padding: 10px;
    font-size: 0.95rem;
}

tr:hover {
    background: #f1f1f1;
}

@media (max-width: 600px) {
    th, td {
        font-size: 0.85rem;
        padding: 8px;
    }
    h1, h2 {
        font-size: 1.2rem;
    }
}