body {
    font-family: 'Arial', sans-serif;
    background: #fdfdfd;
    text-align: center;
    padding: 20px;
}

.login-container {
    background: #fff;
    width: 80%;
    max-width: 350px;
    margin: 50px auto;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    text-align: left;
}

h2 {
    text-align: center;
    color: #555555;
}

label {
    display: block;
    font-weight: bold;
    margin-top: 10px;
    font-size: 14px;
    color: #333;
}

/* 入力フィールド */
input[type="text"], input[type="password"] {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 14px;
    box-sizing: border-box;
}

button {
    margin-top: 20px;
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: white;
    border: none;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

.error {
    color: red;
    margin-top: 10px;
    text-align: center;
}

.toggle-password {
    margin-top: 5px;
    cursor: pointer;
    color: #007bff;
    font-size: 13px;
    text-align: right;
}

.forgot-password {
    margin-top: 15px;
    text-align: center;
}

label {
    color: #555555;
}

/* スマホ対応 */
@media (max-width: 480px) {
    .login-container {
        width: 90%;
    }

    input[type="text"], input[type="password"] {
        font-size: 13px;
        padding: 8px;
    }

    button {
        font-size: 14px;
        padding: 10px;
    }
}