body {
    background-color: #121212; /* Dark background */
    color: #ffffff; /* Light text by default */
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.auth-container {
    width: 100%;
    max-width: 320px;
    margin: 100px auto;
    padding: 20px;
    text-align: center;
    background: #1f1f1f; /* Dark container background */
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.auth-container h2 {
    font-size: 1.6em;
    color: #ffffff; /* Light heading text */
    margin-bottom: 15px;
    font-weight: bold;
}

.auth-container p {
    font-size: 1.1em;
    color: #cccccc; /* Softer light text */
    margin: 5px 0 15px;
}

.auth-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid #444;
    border-radius: 5px;
    font-size: 1em;
    background-color: #2b2b2b;
    color: #ffffff;
    transition: border-color 0.3s ease-in-out;
}

.auth-container input:focus {
    border-color: #1e90ff;
    outline: none;
}

.auth-container button {
    width: 100%;
    padding: 12px;
    background: #1e90ff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background 0.3s ease-in-out;
}

.auth-container button:hover {
    background: #007acc;
}

.error-message {
    color: #ff6b6b;
    font-size: 14px;
    margin-top: 10px;
    font-weight: bold;
}