body, html {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #c4e4ff; 
    color: #333; 
}

h1 {
    margin-bottom: 0.5px;
    color: #333;
    font-size: 1.6rem;
    font-weight: bold;
    text-align: center;
}


.Search-bar {
    text-align: center;
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 360px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
}

h2 {
    margin: 1px 0 10px;
    color: #093c66;
    font-size: 1rem;
}

input[type="text"].generate-QR {
    width: 100%;
    padding: 8px;
    margin: 0 auto 12px;
    border: 1px solid #7fc2f3;
    border-radius: 5px;
    font-size: 0.9rem;
    display: block;
    box-sizing: border-box;
}


button {
    width: 100%;
    padding: 8px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.3s, transform 0.2s;
    margin-top: 20px;
}

button:hover {
    background-color: #387fca;
    transform: scale(1.009);
}

button:active {
    transform: scale(1);
}

#imgbox {
    margin-top: 5px;
    padding: 8px;
    border: 1px dashed #ccc;
    border-radius: 8px;
    background-color: #f9f9f9;
    width: 180px; 
    height: 180px; 
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

@media (max-width: 500px) {
    body {
        padding: 10px;
    }

    h1 {
        font-size: 1.4rem;
    }

    .Search-bar {
        width: 100%;
        padding: 20px;
    }

    input[type="text"].generate-QR {
        width: 100%;
        margin-bottom: 15px;
    }

    button {
        width: 100%;
        padding: 10px;
        font-size: 1rem;
    }

    #imgbox {
        width: 160px;
        height: 160px;
    }
}

@media (min-width: 501px) and (max-width: 800px) {
    .Search-bar {
        width: 80%;
        max-width: 360px;
    }

    input[type="text"].generate-QR {
        width: 100%;
        margin-bottom: 15px;
    }

    button {
        width: 100%;
        padding: 10px;
        font-size: 1rem;
    }

    #imgbox {
        width: 180px; 
        height: 180px;
    }
}

@media (min-width: 800px) {
    .Search-bar {
        width: 60%;
        max-width: 400px; 
    }

    input[type="text"].generate-QR {
        width: 100%;
        margin-bottom: 15px;
    }

    button {
        width: 100%;
        padding: 12px;
        font-size: 1rem;
    }

    #imgbox {
        width: 200px;
        height: 200px;
    }
}