html {
        scroll-behavior: smooth;
    }

    body {
        background-image: url('/static/back.jpg');
        background-size: cover;
        background-position: center;
        color: #E0DFCA;
        font-family: 'Roboto', sans-serif;
        display: flex;
        flex-direction: column;
        justify-content: center;
        min-height: 100vh;
        margin: 0;
    }

    .container {
        background-color: rgba(18, 18, 18, 0.8);
        padding: 45px;
        border-radius: 25px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        width: 100%;
        max-width: 650px;
        margin: 30px auto;
        margin-top: 70px;
        z-index: 1;
        position: relative;
    }

    .container h1 {
        font-family: 'Poppins', sans-serif;
        font-size: 2.3rem;
        text-align: center;
        margin-bottom: 25px;
        color: #ffffff;
    }

    /* buttons*/
    .btn-custom {
        display: inline-block;
        padding: 10px 16px;
        background-color: rgba(0, 0, 145, 0.7);
        border-radius: 6px;
        color: #ffffff;
        text-align: center;
        font-size: 16px;
        text-decoration: none;
        transition: background-color 0.3s, transform 0.3s;
        border: none;
        cursor: pointer;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    }

    .btn-custom:hover {
        background-color: rgba(0, 0, 145, 0.8);
        transform: scale(1.05);
        color: #ffffff;
        text-decoration: none;
    }

    .btn.btn-primary {
        border-radius: 12px;
    }

    .footer-container {
        margin-top: 20px;
        margin-bottom: 10px;
        width: 100%;
        bottom: 0;
        left: 0;
    }

    .text-center.py-3 {
        text-align: center;
        padding: 1rem 0;
    }


    /* switch*/
    .toggle-right {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }

    .toggle-card {
        background-color: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        padding: 5px 10px;
        border-radius: 8px;
        margin-bottom: 10px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .switch {
        position: relative;
        display: inline-block;
        width: 50px;
        height: 26px;
        margin-left: 15px;
    }

    .switch input {
        opacity: 0;
        width: 0;
        height: 0;
    }

    .slider {
        position: absolute;
        cursor: pointer;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(72, 201, 120, 0.4);
        transition: 0.4s;
        border-radius: 34px;
    }

    .slider::before {
        position: absolute;
        content: "";
        height: 22px;
        width: 22px;
        left: 2px;
        bottom: 2px;
        background-color: white;
        transition: 0.4s;
        border-radius: 50%;
    }

    input:checked + .slider {
        background-color: rgba(18, 133, 255, 0.544);
    }

    input:checked + .slider::before {
        transform: translateX(24px);
    }


    #toggleStatusBox {
        max-width: 470px;
        padding: 6px 10px;
        font-size: 12px;
        line-height: 1.4;
        text-align: left;
        border-radius: 6px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        position: relative;
        right: 2px;
        transition: background-color 0.4s ease;
    }

    #toggleStatusBox span {
        font-size: 13px;
    }

    #toggleStatus {
        font-size: 12px;
        display: block;
        white-space: normal;
    }

    .blue-bg {
        background-color: rgba(0, 123, 255, 0.2);
        color: #cce6ff;
    }

    .green-bg {
        background-color: rgba(40, 167, 69, 0.2);
        color: #d4f8dd;
    }


    .nav-buttons {
        display: flex;
        justify-content: space-between;
        position: absolute;
        top: 20px;
        left: 0;
        right: 0;
        padding: 0 20px;
    }


    .highlight {
        background-color: rgba(255, 230, 0, 0.4);
        padding: 2px 4px;
        border-radius: 4px;
    }

    @media screen and (max-width: 576px) {
        .container {
            padding: 30px;
            margin-top: 100px;
        }

        .footer-container {
            margin-top: 20px;
        }

        .toggle-right {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }

        .switch {
            margin-bottom: 10px;
            margin-left: 0;
        }

        #toggleStatusBox {
            width: 100%;
            max-width: 510px;
            font-size: 13px;
            padding: 7px;
            right: 0;
        }

        .toggle-card {
            padding: 10px;
        }
    }

    @media (max-width: 400px) {
        .switch {
            width: 45px;
            height: 24px;
        }

        .slider::before {
            height: 20px;
            width: 20px;
        }
    }