body {
    font-family: Tahoma, Verdana, Arial, sans-serif;
    background: #0080ff url('https://i.imgur.com/1Q9Z1Zm.png') repeat;
    color: #000;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    letter-spacing: 0.01em;
}



.retro-box {
    border-collapse: separate;
    border-spacing: 0;
    box-shadow: 0 0 12px #222, 2px 2px 0 #fff inset;
    background: linear-gradient(180deg, #e0e0e0 80%, #c0c0c0 100%);
    margin-top: 48px;
    font-family: Tahoma, Verdana, Arial, sans-serif;
    border-radius: 8px;
    border: 2px solid #003366;
    overflow: hidden;
}



.retro-box td {
    border: 1px solid #888;
    padding: 10px 8px;
    background-clip: padding-box;
}



.textbox {
    background: #fff;
    color: #003366;
    font-family: Courier New, monospace;
    font-size: 14px;
    border: 1.5px inset #888;
    width: 97%;
    padding: 7px 10px;
    margin: 8px 0 0 0;
    box-shadow: 0 1px 0 #fff inset;
    border-radius: 3px;
    transition: border 0.2s;
}
.textbox:focus {
    border: 1.5px solid #003366;
    outline: none;
    background: #f8f8ff;
}



.copybtn {
    background: #c0c0c0;
    color: #003366;
    border: 2px outset #888;
    border-radius: 3px;
    padding: 4px 18px;
    font-weight: bold;
    cursor: pointer;
    font-size: 13px;
    font-family: Tahoma, Verdana, Arial, sans-serif;
    margin-left: 6px;
    box-shadow: 0 1px 0 #fff inset;
    transition: background 0.2s, color 0.2s, border 0.2s;
}
.copybtn:hover {
    background: #e0e0e0;
    color: #000080;
    border: 2px inset #888;
}



::-webkit-scrollbar {
    width: 10px;
    background: #c0c0c0;
}
::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 2px;
    border: 2px solid #e0e0e0;
}