* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-radius: 0;
}

body {
    font-family: "Courier New", Courier, monospace;
    background: #e0e0e0;
    color: #000;
    padding: 2vw;
    line-height: 1.1;
}

header {
    background: #fff;
    border: 4px solid #000;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 10px 10px 0 #000;
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

section {
    background: #fff;
    border: 4px solid #000;
    padding: 20px;
    box-shadow: 8px 8px 0 #131213;
    min-height: 400px;

    display: flex;
    flex-direction: column;
}

h1 {
    font-size: clamp(2rem, 8vw, 6rem);
    text-transform: uppercase;
    margin-bottom: 10px;
}

h2 {
    background: #000;
    color: #fff;
    padding: 5px;
    margin-bottom: 20px;
    display: inline-block;
}

.cntrolgrp {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

select {
    border: 3px solid #000;
    padding: 10px;
    background: #fff;
    font-family: inherit;
    font-weight: bold;
}

.squaregreen {
    background: #00ff00;
    color: #000;
    text-decoration: none;
    font-weight: 900;
    padding: 15px;

    border: 4px solid #000;
    box-shadow: 5px 5px 0 #000;

    display: inline-block;
    cursor: pointer;
    text-align: center;
}

.squaregreen:hover {
    transform: translate(-2px, -2px);
    box-shadow: 7px 7px 0 #000;
}

.displayarea {
    padding-top: 20px;
    border-top: 2px dashed #000;
}

.titletxt {
    font-size: 1.4rem;
    font-weight: 900;
    margin-bottom: 10px;
    text-transform: uppercase;
    text-decoration: underline;
}

.marquee {
    background: #000;
    color: #fff;
    padding: 10px 0;
    margin: 20px 0;

    overflow: hidden;
    white-space: nowrap;
}

@media (max-width:768px) {
    main {
        grid-template-columns: 1fr;
    }
}