:root {
    --bg-0: #101010;
    --bg-1: #181818;
    --bg-2: #282828;
    --bg-3: #404040;

    --fg-0: #b0b0b0;
    --fg-1: #c0c0c0;
    --fg-2: #d0d0d0;
    --fg-3: #e0e0e0;

    --col-shadow-0: #0002;
    --col-shadow-1: #0004;
    --col-shadow-2: #0006;
    --col-highlight-0: #ffffff08;
    --col-highlight-1: #fff1;
    --col-highlight-2: #fff2;

    --col-new: #b3ee5b;
    --col-on-new: #1b2013;
    --col-save: #6fd7ff;
    --col-on-save: #283f48;
    --col-delete: #ff7171;
    --col-on-delete: #371919;

    --col-warn: #ffe86a;
    --col-on-warn: var(--bg-0);
    --col-warn-hover: #ffec81;

    --col-link: #a3ef81;

    --shadow-sm:
    0 1px 2px var(--col-shadow-2),
    inset 0 1px 1px var(--col-highlight-2);
    --shadow-md:
    0 2px 4px var(--col-shadow-1),
    inset 0 2px 2px var(--col-highlight-1);
    --shadow-lg:
    0 4px 8px var(--col-shadow-0),
    inset 0 4px 4px var(--col-highlight-0);
}

@media (prefers-color-scheme: light) {
    :root {
        --bg-0: #e8e8e8;
        --bg-1: #f0f0f0;
        --bg-2: #f8f8f8;
        --bg-3: #ffffff;

        --fg-0: #606060;
        --fg-1: #404040;
        --fg-2: #303030;
        --fg-3: #202020;

        --col-shadow-0: #0002;
        --col-shadow-1: #0004;
        --col-shadow-2: #0008;
        --col-highlight-0: #fff2;
        --col-highlight-1: #fff4;
        --col-highlight-2: #fff8;

        --col-warn: #ffe86a;
        --col-on-warn: var(--fg-3);
        --col-warn-hover: #ffec81;

        --col-link: #3c7423;
    }
}

body {
    width: 100%;
    min-height: 100vh;

    margin: 0;
    padding: 0;

    font-family: "Inter", sans-serif;
    font-size: 16px;
    color: var(--fg-0);
    background-color: var(--bg-0);

    transition: background .1s ease-out, color .1s ease-out;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--fg-3);
}

main {
    width: 900px;
    max-width: calc(100% - 2em);
    height: fit-content;
    min-height: calc(100vh - 2em);
    margin: 0 auto;
    padding: 1em;
}

a {
    color: var(--col-link);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color .1s ease-out, background-color .1s ease-out;
}
a:hover {
    text-decoration: underline;
}

img.icon {
    height: .8em;
    transition: filter .1s ease-out;
}

code {
    background: #303030;
    color: #f0f0f0;
    padding: .23em .3em;
    border-radius: 4px;
}

a.delete:not(.button) {
    color: #d22828;
}

.button, button {
    padding: .5em .8em;
    font-family: inherit;
    font-size: inherit;

    color: inherit;
    background-color: var(--bg-2);
    border: none;
    border-radius: 10em;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
    transition: background .1s ease-out, color .1s ease-out;

    cursor: pointer;
    user-select: none;
}
button:hover, .button:hover {
    background: #fff;
}
button:active, .button:active {
    background: #d0d0d0;
}

.button.new, button.new {
    color: var(--col-on-new);
    background-color: var(--col-new);
}
.button.save, button.save {
    color: var(--col-on-save);
    background-color: var(--col-save);
}
.button.delete, button.delete {
    color: var(--col-on-delete);
    background-color: var(--col-delete);
}
.button:hover, button:hover {
    color: var(--bg-3);
    background-color: var(--fg-3);
}
.button:active, button:active {
    color: var(--bg-2);
    background-color: var(--fg-0);
}
.button[disabled], button[disabled] {
    color: var(--fg-0) !important;
    background-color: var(--bg-3) !important;
    opacity: .5;
    cursor: default !important;
}



form {
    width: 100%;
    display: block;
    color: var(--fg-0);
}
form label {
    width: 100%;
    margin: 1rem 0 .5rem 0;
    display: block;
}
form input {
    width: auto;
    max-width: 100%;
    margin: .5em 0;
    padding: .3em .5em;
    display: block;
    border-radius: 4px;
    border: 1px solid #808080;
    font-size: inherit;
    font-family: inherit;
    color: inherit;
    background-color: var(--bg-0);
}
form input[type="text"],
form input[type="password"] {
    width: 16em;
}
form input[type="number"] {
    width: 2em;
}
input[disabled] {
    opacity: .5;
    cursor: not-allowed;
}

@media screen and (max-width: 720px) {
    main {
        padding-top: 0;
    }

    body {
        width: 100%;
        margin: 0;
        font-size: 16px;
    }
}

header {
    width: 900px;
    max-width: calc(100% - 2em);
    margin: 0 auto;
    padding: 1em;

    nav a {
        padding: .2em .4em;
        border-radius: 4px;
        background-color: var(--bg-1);
        box-shadow: var(--shadow-sm);
    }
}