html, body, #root, .page {
    height: 100%;
}

html {
    background-color: var(--col-background);
    font-size: 62.5%;
    font-family: 'Karla', Helvetica, Arial, sans-serif;
}

.page {
    display: grid;
    grid-template-columns: 1fr;
    /* default: header content
    override if required */
    grid-template-rows: auto 1fr;
}

main {
    overflow-y: scroll;
    grid-template-columns: minmax(auto, 800px);
    display: grid;
    justify-content: center;
    align-content: start;
}

button, input[type=submit] {
    color: black;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: var(--font-size-normal);
}

p, span, a, div, label {
    font-size: var(--font-size-normal);
}

h1, .h-1 {
    font-size: var(--font-size-xxlarge);
}

h2, .h-2 {
    font-size: var(--font-size-xlarge);
}

h1, .h-1, h2, .h-2 {
    margin-top: 1.3ch;
    margin-bottom: 0.7ch;
    font-weight: bolder;
}

dialog {
    position: fixed;
    top: 2.5rem;
    width: min(75rem, 100%);
    margin: auto;
    border-radius: 0.3rem;
    border: 1px solid var(--col-neutral-4);
    box-sizing: border-box;
    box-shadow: 0rem 2rem 3rem rgba(0, 0, 0, 0.3);
    padding: 2rem;
}


/* TEXT INPUT */

input[type=text], input[type=password] {
    -webkit-appearance: none;
    appearance: none;
    border: none;
    background-color: transparent;
    padding: 0rem;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    border-bottom-width: 0.25rem;
    border-bottom-style: solid;
    border-color: var(--col-neutral-7);
    box-sizing: border-box;
    min-width: 3ch;
}

input[type=text].in-string, input[type=password].in-string {
    padding-left: 0;
    padding-right: 0;
}

input[type=text]:focus, input[type=password]:focus {
    outline: none;
}


/* ICON BUTTONS */

.icon-button {
    -webkit-mask-image: url('/static/vector/circle.svg');
    mask-image: url('/static/vector/circle.svg');

}

.icon-button:hover, .icon-button:focus {
    background-color: var(--col-neutral-8);
    outline: none;
    cursor: pointer;
}

.icon-button:active {
    background-color: var(--col-neutral-5);
}


/* BUTTONS */

button, input[type=submit] {
    --button-edge-col: var(--col-neutral-4);
    position: relative;
    border: 1px solid var(--col-neutral-5);
    border-bottom: var(--button-edge-col) ;
    background-color: var(--col-text-backing);
    border-radius: 5px;
    box-sizing: border-box;
    padding-top: 6px;
    padding-bottom: 6px;
    padding-left: 10px;
    padding-right: 10px;    
    box-shadow: 0 4px var(--button-edge-col);
    
    /* correct for 3D drop shadow */
    margin-bottom: 4px; 

    user-select: none;
}

button:active, input[type=submit]:active  {
    box-shadow: 0 2px var(--button-edge-col);

    /* correct for 3D drop shadow */
    top: 2px
}

button.primary, input[type=submit] {
    --button-edge-col: rgb(57, 93, 175);
    background-color: rgb(119, 160, 255);
    border-color: rgb(66, 115, 229);
}

button.primary:active, input[type=submit]:active {
    --button-edge-col: rgb(56, 99, 199);
}


/* CHECKBOXES */

input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    position: relative;
    width: 1.2rem;
    height: 1.2rem;
    border: 1px solid gray;
    /* Adjusts the position of the checkboxes on the text baseline */
    vertical-align: -2px;
    /* Set here so that Windows' High-Contrast Mode can override */
    color: green;
    box-sizing: border-box;
}

input[type="checkbox"]::before {
    content: "✔";
    position: absolute;
    font-size: 1.2em;
    right: -3px;
    top: -0.55em;
    visibility: hidden;
}

input[type="checkbox"]:checked::before {
    /* Use `visibility` instead of `display` to avoid recalculating layout */
    visibility: visible;
}

input[type="checkbox"]:focus {
    border: 1px solid black;
}


/* LINKS */

a:hover {
    text-decoration-line: underline;
}

a {
    color: var(--col-dark-highlight);
    text-decoration-line: underline;
}

/* EMPHASIS */
mark {
    background-color: rgb(255, 162, 201);
}

/* PLACEHOLDER */

.placeholder > * {
    font-size: var(--font-size-large);
    flex: 0 0 auto;
}

.placeholder {
    padding-bottom: 16px;
    padding-top: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%
}