go-pkg/mercury/public/style.css

* {
    font-weight: lighter;
    font-family: 'fira code', monospace;
}

body {
    margin: 0;
    min-height: 100vh;
}

header {
    margin: 0 50px;
    background: rgb(63, 94, 251);
    background: radial-gradient(circle, rgba(63, 94, 251, 1) 0%, rgba(252, 70, 107, 1) 100%);
    height: 100px;
    user-select: none;
}

h1 {
    text-align: center;
    color: white;
    line-height: 100px;
    margin: 0;
}

input,
textarea {
    font-size: small;
    border: 2px solid cornflowerblue;
}

input.invalid {
    border-color: red;
}

button {
    border: 2px solid cornflowerblue;
}

code,
pre {
    font-size: small;
    -webkit-user-select: text;
    user-select: text;
}

code strong {
    font-weight: bold;
}

code dfn {
    color: green
}

code i {
    color: grey
}

code em {
    color: orange;
}

code:focus {
    animation: select 100ms step-end forwards;
}

footer {
    position: fixed;
    font-size: x-small;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1em;
    padding: 4px;
    color: white;
    border-top: 1px solid black;
    background: cornflowerblue;
}

footer>span {
    float: right;
}

.container {
    margin: 0 50px;
    display: grid;
    min-height: 100vh;
}

.container .open {
    grid-template-columns: 1fr 1fr;
}

.container>div {
    overflow: auto;
    padding: 10px;
    background: rgb(238, 174, 202);
    border: 0px ;
}

.container>div>code {
    -webkit-user-select: all;
    /* for Safari */
    user-select: all;
}

.search {
    display: flex
}

.search>div {
    background-color: lightgrey;
    border-radius: 5px 0px 0px 5px;
    border: 2px solid cornflowerblue;
    border-right: 0;
    user-select: none;
    padding: 0 2px; 
}

.search>button {
    border-left: 0;
}

.search>div {
    line-height: 30px;
}

.search>input {
    flex-grow: 5;
}

.search>button {
    flex-grow: 2;
    border-radius: 0px 5px 5px 0px;
}

.edit {
    display: grid;
    grid-template-columns: 1fr;
}

.edit>button {
    line-height: 28px;
    border-bottom: 0;
    border-radius: 5px 5px 0 0;
}

.edit>textarea {
    margin-top: 0;
    border-radius: 0 0 5px 5px;
}

@keyframes select {
    to {
        -webkit-user-select: text;
        user-select: text;
    }
}

@media (prefers-color-scheme: dark) {
    html {
        color: white;
        background: #111
    }

    header {
        background: #111;
        background: radial-gradient(circle, rgba(2, 0, 36, 1) 0%, rgba(7, 80, 29, 1) 35%, rgba(0, 0, 0, 1) 100%);
    }

    h1 {
        color: white;
    }

    .container>div {
        background: #111;
        /* background: linear-gradient(304deg, rgba(2, 0, 36, 1) 0%, rgba(77, 77, 77, 1) 18%, rgba(0, 0, 0, 1) 100%); */
        border: 2px solid rgb(117, 117, 117);
    }

    .search>div {
        background-color: grey;
        border-color: rgb(117, 117, 117);
    }

    button {
        color: white;
        background: rgba(7, 80, 29, 1);
        border: 2px solid rgb(117, 117, 117);
    }

    button:hover {
        background: rgb(11, 121, 44);
    }

    button:active {
        background: rgb(5, 59, 21);
    }

    input,
    textarea {
        color: white;
        background-color: #111;
        border: 2px solid rgb(117, 117, 117);
    }
    footer {
        color: white;
        border-top: 1px solid white;
        background: #222;

    }
}