:root {
    /* variables */
    --main-color: #0481ca; /* 4 129 202 */
    --main-button-color: #0481ca;
    --bg-color: #F8F6F4;
    /* variables end */

    /* generate filters with https://codepen.io/sosuke/pen/Pjoqqp */
    --filter-to-main-color: invert(41%) sepia(78%) saturate(6295%) hue-rotate(185deg) brightness(100%) contrast(97%);
    --filter-to-white: invert(100%);

    --main-color-rgb: rgb(from var(--main-color));
    --button-bg-color: var(--main-button-color);
}

body {
    display: grid;
    grid-template-areas:
        "logo title"
        /*"profile content"*/
        "nav content"
        "footer footer"
    ;
    grid-template-columns: max-content 1fr;
    grid-template-rows: auto 1fr auto;
    column-gap: 1rem;
    margin: 0;
    height: 100vh;
    font-family: "Nunito Sans", Arial, Helvetica, sans-serif;
    font-optical-sizing: auto;
    background-color: var(--bg-color);
    font-stretch: semi-condensed;
    font-variation-settings: "YTLC" 440;
    scrollbar-color: var(--main-color) transparent;

    > .header-logo {
        grid-area: logo;
        margin: 0.5rem 1rem;
        height: 3rem;
        text-align: center;
    }
}

#header-logo {
    height: 100%;
    cursor: pointer;
}

#header-title {
    grid-area: title;
    font-size: 2em;
    font-weight: bold;
    white-space: nowrap;
    padding-right: 1rem;
    width: calc(100% - 1rem);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;

    > span {
        flex-grow: 1;
        text-align: center;
        margin-left: 2em;
    }

    > img {
        width: 2em;
        height: 2em;
        aspect-ratio: 1;
        filter: var(--filter-to-main-color);
    }
}

footer {
    grid-area: footer;
    display: flex;
    padding: 0.25rem;
    padding-left: 1rem;
    margin-top: 0.5rem;
    background-color: var(--main-color);
    column-gap: 0.25rem;
    align-items: center;
    white-space: nowrap;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 -1rem 1rem -0.75rem #333;
    z-index: 1;
}

#footer-name {
    font-style: italic;
    font-weight: bold;
    font-size: 0.75rem;
    line-height: 0.75rem;
    text-align: center;
}

footer img {
    height: 1.5rem;
    vertical-align: middle;
}

footer img.copyright {
    width: 1rem;
    height: 1rem;
}

#footer-status {
    flex-grow: 1;
    margin-right: 1rem;
    font-size: 0.75rem;
    font-weight: bold;
    text-overflow: ellipsis;
    overflow: hidden;
}

#footer-lang {
    padding: 0 0.33rem;
    cursor: pointer;
    position: relative;

    > div {
        display: none;
        position: absolute;
        bottom: 99%;
        left: 50%;
        flex-direction: column;
        row-gap: 0.33rem;
        background-color: var(--main-color);
        padding: 0.33rem;
        transform: translateX(-50%);
        border-radius: 0.125rem;

        img {
            box-shadow: 0 0 0.125rem 0.05rem #000;

            &:hover {
                filter: brightness(125%);
            }
        }
    }

    &:hover > div {
        display: flex;
    }
}

button {
    --button-bg-color: var(--main-button-color);

    display: flex;
    align-items: center;
    justify-content: center;
    column-gap: 0.5rem;
    padding: 0.25rem;
    border-radius: 0.5rem;
    background-color: var(--button-bg-color);
    border: 0.25rem outset var(--button-bg-color);
    cursor: pointer;
    position: relative;

    img {
        width: 1.5em;
        height: 1.5em;
    }

    &:disabled {
        filter: grayscale(80%);
        border-color: transparent;
        cursor: default;
        color: inherit;
        background: repeating-linear-gradient(
            45deg,
            hsl(from var(--button-bg-color) h s calc(l + 10)),
            hsl(from var(--button-bg-color) h s calc(l + 10)) 1em,
            hsl(from var(--button-bg-color) h s calc(l - 10)) 1em,
            hsl(from var(--button-bg-color) h s calc(l - 10)) 2em
        );
        background-origin: border-box;
    }

    &::after {
        content: "";
        background: #000c;
        display: block;
        position: absolute;
        width: 100%;
        height: 100%;
        opacity: 0;
        border-radius: 0.5rem;
        transition: all 0.5s ease-out;
    }

    &:not(:disabled):hover {
       background-color: hsl(from var(--button-bg-color) h s calc(l + 5));
       border-color: hsl(from var(--button-bg-color) h s calc(l + 5));
    }

    &:not(:disabled):active {
        border-style: inset;

        &::after {
            width: 0;
            height: 0;
            opacity: 1;
            transition: 0s;
        }
    }

    /* color types */

    &.new {
        --button-bg-color: #0063ba;
        color: #fff;

        img {
            filter: var(--filter-to-white);
        }
    }

    &.save {
        --button-bg-color: #0a0;

        img {
            filter: var(--filter-to-white);
        }
    }

    &.detail {
        --button-bg-color: #ccc;
        margin: 0 auto;
    }

    &.edit {
        --button-bg-color: #ffc40c;
        color: #000;
    }

    &.warning {
        --button-bg-color: #e05210;
        color: #fff;

        img {
            filter: var(--filter-to-white);
        }
    }
}

#loader {
    background-color: transparent;
    border: none;
    overflow: visible;
    user-select: none;
    outline: none;
    padding: 0;
    width: 10rem;
    aspect-ratio: 1;

    > canvas {
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
    }

    > img {
        width: 100%;
        height: 100%;
        animation: loader 2s infinite cubic-bezier(.65,.20,.35,.80);
        filter: var(--filter-to-main-color);

        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }

    > span {
        color: var(--main-color);
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        font-weight: bold;
        font-size: 1.2rem;
    }

    ::backdrop {
        backdrop-filter: brightness(33%) blur(2px);
    }
}

@keyframes loader {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

#logout-timer path {
    fill: var(--main-color);
    stroke-width: 0;
    stroke: var(--main-color);
}