:root {
    --sec-width: 1500px;
    --border-radius: 8px;
    --back-color: #383736;
    --sec-color: gray;
    --text-color: white;
    --color-but1: #A5C9CA;
    --color-but2: #395B64;
}

*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    color-scheme: dark;
}

body {
    overflow: hidden;
    min-height: 100vh;
    color: var(--text-color);
    font-family: Sans-serif, serif;
    background: var(--back-color);
}

img, picture, svg, video {
    display: block;
    max-width: 100%;
}

.vert_center {
    margin-left: auto;
    margin-right: auto;
}

.remove_a {
    color: inherit;
    text-decoration: none;
}

.hidden {
    display: none;
}

.content {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url("windows_background.webp");
    background-size: cover;
    font-family: 'Open Sans', sans-serif;
}

.no_touch {
    user-select: none;
}

.popup {
    position: absolute;
    width: 350px;
    height: 200px;
    background: white;
    border-radius:10px;
    border: #63acea 1px solid;
    color: black;
}

.header {
    width: 100%;
    cursor: move;
    background-color: #f0f0f0;
    border-radius: 10px 10px 0 0;
    display: flex;
    justify-content: end;
}

.drag {
    width: calc(100% - 30px);
}

.tab_text {
    padding-left: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cross {
    display: flex;
    width: 30px;
    height: 30px;
    justify-content: center;
    align-items: center;
    color: gray;
    transition: color 100ms;
    cursor: pointer;
}

.cross:hover{
    border-top-right-radius: 10px;
    background: red;
    color: white;
    transition: color 100ms;
}

.error_content {
    display: flex;
    justify-content: center;
    align-items: center;
    height: calc(100% - 80px);
}
.error_content img {
    width: 30px;
    height: 30px;
    pointer-events: none;
}

.error_message {
    padding-left: 30px;
}

.footer {
    height: 50px;
    background-color: #f0f0f0;
    border-radius: 0 0 10px 10px;
    display: flex;
    justify-content: end;
    align-items: center;
}

.footer button {
    border-radius: 6px;
    width: 70px;
    height: 25px;
    border: #d0d0d0 1px solid;
    background-color: #fdfdfd;
    color: black;
    margin-right:25px;
}

.footer button:hover {
    transition: border 100ms;
    border: #0078d4 1px solid;
    background-color: #e0eef9;
}