* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}

body {
    overflow: hidden;
    position: relative;
    width: 100%;
    min-height: 100vh;
}

.container {
    background-image: url(./assets/img/background.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
    width: 100%;
    position: relative;
}

.banh-chung {
    position: absolute;
    width: min(20rem, 40%);
    height: auto;
    aspect-ratio: 1/1;
    top: 55%;
    left: 20%;
}

.banh-chung img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.cay-dao {
    position: relative;
    width: min(45rem, 60%);
    left: 36%;
}

.cay-dao img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.lixi-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.lixi {
    position: absolute;
    width: 4rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.lixi img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
    border: 2px solid #ff1744;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.2);
}

.lixi:hover {
    transform: scale(1.1);
}

.card {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
    max-height: 80vh;
    overflow-y: auto;
}

.message {
    font-size: 1.4rem;
    line-height: 1.5;
    color: #333;
    text-align: center;
}

.image {
    width: min(150px, 80%);
    height: auto;
    aspect-ratio: 1/1;
    object-fit: contain;
    margin: 0 auto;
}

.caudoi-wrapper {
    display: none;
}

@media screen and (max-width: 768px) {
    .container {
        background-image: url(./assets/img/background-2.jpg);
    }

    .card {
        width: 40%;
    }

    .banh-chung {
        width: 30%;
        top: 70%;
        left: 10%;
    }

    .cay-dao {
        width: 70%;
        left: 30%;
    }

    .lixi {
        width: 4rem;
    }

    .caudoi-wrapper {
        position: absolute;
        display: block;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    .caudoi-wrapper .caudoi-item-1,
    .caudoi-wrapper .caudoi-item-2 {
        position: absolute;
        width: 25%;
        height: auto;
    }

    .caudoi-wrapper .caudoi-item-1 {
        top: 35%;
        left: 0%;
    }

    .caudoi-wrapper .caudoi-item-2 {
        top: 35%;
        right: 0%;
    }

    .caudoi-wrapper .caudoi-item-1 img,
    .caudoi-wrapper .caudoi-item-2 img {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }
}

@media screen and (max-width: 480px) {
    .container {
        background-image: url(./assets/img/background-2.jpg);
    }

    .card {
        width: 40%;
    }

    .caudoi-wrapper {
        position: absolute;
        display: block;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    .caudoi-wrapper .caudoi-item-1,
    .caudoi-wrapper .caudoi-item-2 {
        position: absolute;
        width: 25%;
        height: auto;
    }

    .caudoi-wrapper .caudoi-item-1 {
        top: 35%;
        left: 0%;
    }

    .caudoi-wrapper .caudoi-item-2 {
        top: 35%;
        right: 0%;
    }

    .caudoi-wrapper .caudoi-item-1 img,
    .caudoi-wrapper .caudoi-item-2 img {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .banh-chung {
        width: 25%;
        top: 75%;
        left: 5%;
    }

    .cay-dao {
        width: 80%;
        left: 20%;
    }

    .lixi {
        width: 2.5rem;
    }

    .card {
        width: 90%;
        max-width: 300px;
    }
}

.music-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 70px;
    padding: 15px;
    font-size: 30px;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: transform 0.3s;
    z-index: 1000;
}

.music-toggle:hover {
    transform: scale(1.1);
    background: rgba(0, 0, 0, 0.5);
}

.fb-logo {
    position: fixed;
    bottom: 15px;
    left: 15px;
    z-index: 1000;
}

.fb-logo img {
    width: 65px;
    height: auto;
}