@charset "UTF-8";
body { 
    font-family: sans-serif; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    height: 100vh; 
    margin: 0; 
    background-color: #f8f9fa; 
}

.login-container { 
    width: 100%;
    max-width: 400px;
    padding: 40px; 
    background-color: white; 
    border-radius: 8px; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    text-align: center;
}

h2 {
    margin-top: 0;
    margin-bottom: 30px;
    color: #333;
}

.form-group { 
    margin-bottom: 20px;
    text-align: left;
}

label { 
    display: block; 
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

input[type="text"], 
input[type="password"] { 
    width: 100%; 
    padding: 10px; 
    box-sizing: border-box; 
    border: 1px solid #ccc;
    border-radius: 4px;
}

button[type="submit"] { 
    width: 100%; 
    padding: 12px; 
    background-color: #343a40; 
    color: white; 
    border: none; 
    border-radius: 4px; 
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.2s;
}

button[type="submit"]:hover {
    background-color: #495057;
}

.error { 
    color: #dc3545; /* 빨간색 */
    margin-top: 10px; 
    text-align: center;
    font-weight: bold;
}