:root {
    --font-color: #ebebeb;
    --bg-color: black;
}

.main {
    width: 700px;
    height: 400px;
    margin: 100px auto;
    box-sizing: border-box;
    box-shadow: 0px 0px 20px 0px #cfc9c9;
    border: 1px solid #8b8787;
    display: flex;
    margin: 100px auto;
    flex-direction: column;
    /* position: absolute; */
}

.top-nav {
    background-color: #ffffff;
    flex-basis: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.top-nav-left {
    flex: 1;
    display: flex;
    align-items: center;
    height: 100%;
}

.win-icon {
    width: 13px;
    height: 11px;
    background-color: black;
    border: 1px solid gray;
    margin: 0px 4px;
    font-size: 5pt;
    color: white;
    font-weight: bold;
    font-family: system-ui;
}

.win-icon::before {
    content: "";
    display: block;
    margin: auto;
    width: 13px;
    height: 2px;
    border: 1px solid gray inset;
    background-color: rgb(200, 200, 200);
}

.top-nav-title {
    font-family: system-ui;
    font-size: 9pt;
    font-weight: 400;
    user-select: none;
}

.top-nav-right {
    flex-shrink: 0;
    background-color: #ffffff;
    height: 100%;
    display: flex;
}

.top-nav-right > div {
    width: 45px;
    background-color: #ffffff;
    transition: background-color 0.1s;
}

.top-nav-right > div:hover {
    background-color: #eeeeee;
}
.min-btn::before {
    content: "";
    display: block;
    width: 11px;
    border-bottom: 1.5px solid black;
    margin: auto;
    margin-top: 15px;
}

.max-btn::before {
    content: "";
    display: block;
    width: 7px;
    height: 7px;
    border: 1.5px solid black;
    margin: auto;
    margin-top: 9px;
}

.close-btn::before {
    content: '\d7';
    display: block;
    width: 15px;
    margin: auto;
    font-size: 20pt;
}

.close-btn:hover::before {
    color: white;
}

.close-btn:hover {
    background-color: rgb(231, 0, 0) !important;
}

.screen {
    flex-grow: 1;
    background-color: var(--bg-color);
    overflow-y: scroll;
    overflow-x: hidden;
    color: var(--font-color);
    font-family: monospace;
} 

.line {
    color: var(--font-color);
    display: block;
    width: 8px;
    border-bottom: 3px solid var(--font-color);
    position: relative;
    top: -4px;    
    left: 30px;
    font-weight: bold;
}

.text {
    height: 10000px;
}

.screen::selection, .text::selection {
    color: var(--bg-color);
    background: var(--font-color);
}