body {
    background-color: #f8f9fa;
    transition: background-color 0.3s, color 0.3s;
}

.password-card {
    border-radius: 12px;
    padding: 15px;
    background: #ffffff;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
    transition: background 0.3s;
}

.btn-primary {
    background-color: #e67e22;
    border: none;
}

.footer {
    background-color: #f4e1c6;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.dark-mode {
    background-color: #121212;
    color: #ffffff;
}

.dark-mode .password-card {
    background: #1e1e1e;
    color: white;
}

.dark-mode .footer {
    background-color: #333;
}