* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}
body {
    background: url('Bac/bac.jpg') no-repeat center center fixed;
    background-size: cover;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: inherit;
    filter: blur(10px);
    z-index: -1;
}
.login-container {
    background: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 350px;
    text-align: center;
    position: relative;
    z-index: 1;
}
.login-container h2 {
    margin-bottom: 20px;
}
.login-container input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.login-container button {
    width: 100%;
    padding: 10px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.login-container button:hover {
    background: #218838;
}
.logo {
    width: 100px;
    margin-bottom: 20px;
}
.error {
    color: red;
    margin-bottom: 10px;
}