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

.login-box {
    width: 360px;
    margin: 100px auto;
    padding: 25px;
    background: #ffffff;
    border: 1px solid #cccccc;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

h2 {
    text-align: center;
    margin-top: 0;
}

label {
    display: block;
    margin-top: 12px;
    font-weight: bold;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 8px;
    margin-top: 4px;
    box-sizing: border-box;
    border: 1px solid #bbbbbb;
    border-radius: 4px;
}

button,
.button-link {
    display: block;
    width: 100%;
    margin-top: 18px;
    padding: 10px;
    box-sizing: border-box;
    background: #0066cc;
    color: #ffffff;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    text-align: center;
    text-decoration: none;
    font-size: 15px;
}

button:hover,
.button-link:hover {
    background: #004c99;
}

.error {
    color: #b00020;
    background: #ffe8e8;
    border: 1px solid #ffb6b6;
    border-radius: 4px;
    padding: 8px;
    text-align: center;
    margin-bottom: 12px;
}