body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
}

form {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 500px;
    margin: auto;
}

label {
    display: block;
    margin: 10px 0 5px;
    font-weight: bold;
}

select, input[type="text"], input[type="submit"], input[type="reset"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

input[type="submit"], input[type="reset"] {
    background-color: #3498db;
    color: white;
    border: none;
    cursor: pointer;
}

input[type="submit"]:hover, input[type="reset"]:hover {
    background-color: #2980b9;
}

#search_fields {
    margin-top: 20px;
}

.weekday-label {
    display: inline-block;
    margin-right: 10px;
}

.result {
    background-color: #e9ecef;
    padding: 10px;
    margin-top: 20px;
    border-radius: 5px;
}

.no-result {
    color: #e74c3c; /* 赤色で警告 */
}


.search-result {
    width: 80%;
    border-collapse: collapse;
    margin: 20px auto;
    border: 1px solid #ddd; /* 外枠線を追加 */
}

th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}