body {
    margin: 0;
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-image 1s ease-in-out;
}

.login-container {
    background: rgba(255, 255, 255, 0.7); /* slightly more transparent */
    backdrop-filter: blur(6px); /* adds glass-like blur */
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    max-width: 400px;
    width: 100%;
}

h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0 16px 0;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
}

button {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, #4CAF50, #2e7d32);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s ease;
}

button:hover {
    background: linear-gradient(135deg, #45a049, #1b5e20);
}

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