/*
 * This is a manifest file that'll be compiled into application.css, which will
 * include all the files listed below.
 *
 * Any CSS (and SCSS, if configured) file within this directory,
 * lib/assets/stylesheets, or any plugin's vendor/assets/stylesheets directory
 * can be referenced here using a relative path.
 *
 * You're free to add application-wide styles to this file and they'll appear at
 * the bottom of the compiled file so the styles you add here take precedence
 * over styles defined in any other CSS files in this directory. Styles in this
 * file should be added after the last require_* statement.  It is generally
 * better to create a new file per style scope.
 *
 *= require_self
 */

/* Strive for simplicity:
 * * style elements/tags only - if possible,
 * * replace element/tag name with class name - if element has to be styled
 * differently depending on context (e.g. <form>; <a> as link/button),
 * * styles with multiple selectors should have all selectors with same
 * specificity, to allow proper rule specificity vs order management.
 *
 * NOTE: style in a modular way, similar to how CSS @scope would be used,
 * to make transition easier once @scope is widely available. */
/* TODO: review styles with multiple selectors and try to convert them to the same
 * specificity. */
:root {
  --color-focus-gray: #f3f3f3;
  --color-border-gray: #dddddd;
  --color-nav-gray: #c7c7c7;
  --color-gray: #a0a0a0;
  --color-table-gray: #909090;
  --color-text-gray: #707070;

  --color-dark-blue: #006c9b;
  --color-blue: #009ade;
  --color-dark-red: #b21237;
  --color-red: #ff1f5b;

  --depth: 0;

  --z-index-flashes: 100;
  --z-index-table-row-outline: 10;
}

*,
::before,
::after {
  box-sizing: border-box;
}
::selection {
  background-color: var(--color-blue);
  color: white;
}
:focus-visible {
  outline: none;
}
/* NOTE: move to higher priority layer instead of using !important? */
[disabled] {
  border-color: var(--color-border-gray) !important;
  color: var(--color-border-gray) !important;
  /* NOTE: cannot set cursor with `pointer-events: none`; can be fixed by setting
   * `cursor` on wrapping element.
  cursor: not-allowed; */
  fill: var(--color-border-gray) !important;
  pointer-events: none !important;
}
/* [hidden] submit elements cannot have `display` set as it makes them visible. */
[hidden] {
  display: none !important;
}


/* Color coding of input controls' background:
 *  blue - target for interaction with pointer,
 *  gray - target for interaction with keyboard,
 *  red - destructive, non-undoable action.
 */
button,
details,
input,
select,
textarea {
  background-color: inherit;
  font: inherit;
}
details,
input,
select {
  text-align: inherit;
}
a,
button,
input[type=submit] {
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.button,
button,
input[type=submit],
.tab {
  align-items: center;
  color: var(--color-gray);
  display: flex;
  fill: var(--color-gray);
  font-weight: bold;
}
.button,
button,
input[type=submit] {
  font-size: 0.8rem;
  padding: 0.6em 0.5em;
  width: fit-content;
}
input:not([type=submit]):not([type=checkbox]),
select,
summary,
textarea {
  padding: 0.2em 0.4em;
}
.button,
button,
input,
select,
summary,
textarea {
  border: solid 1px var(--color-gray);
  border-radius: 0.25em;
}
[name=cancel],
.auxiliary {
  border-color: var(--color-border-gray);
  color: var(--color-nav-gray);
  fill: var(--color-nav-gray);
}
input[type=checkbox],
svg,
textarea {
  margin: 0
}
input[type=checkbox] {
  accent-color: var(--color-blue);
  appearance: none;
  -webkit-appearance: none;
  display: flex;
  height: 1.1em;
  width: 1.1em;
}
input[type=checkbox]:checked {
  appearance: checkbox;
  -webkit-appearance: checkbox;
}
/* Hide spin buttons of <input type=number>. */
/* TODO: add spin buttons inside <input type=number>: before (-) and after (+) input. */
input[type=number] {
  appearance: textfield;
  -moz-appearance: textfield;
}
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.button > svg,
.tab > svg,
button > svg {
  height: 1.4em;
  width: 1.4em;
}
.button > svg:not(:last-child),
.tab > svg:not(:last-child),
button > svg:not(:last-child) {
  margin-right: 0.2em;
}
/* TODO: move normal, non-button links (<a>:hover/:focus) styling here (i.e.
 * page-wide, top-level) and remove from `table.items` - as the style should be
 * same everywhere. */
.button:focus-visible,
button:focus-visible,
input[type=submit]:focus-visible {
  background-color: var(--color-focus-gray);
}
input:focus-visible,
select:focus-visible,
select:focus-within,
/* TODO: how to achieve `summary:focus-within` for `::details-content`? */
summary:focus-visible,
textarea:focus-visible {
  accent-color: var(--color-dark-blue);
  background-color: var(--color-focus-gray);
}
.button:hover,
button:hover,
input[type=submit]:hover {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: white;
  fill: white;
}
.dangerous:hover {
  background-color: var(--color-red);
  border-color: var(--color-red);
}
input:hover,
select:hover,
summary:hover,
textarea:hover {
  border-color: var(--color-blue);
  outline: solid 1px var(--color-blue);
}
select:hover,
summary:hover {
  cursor: pointer;
}
input:invalid,
select:invalid,
textarea:invalid {
  border-color: var(--color-red);
  outline: solid 1px var(--color-red);
}
input[type=text]:read-only,
textarea:read-only {
  border: none;
  padding-inline: 0;
}


/* NOTE: collapse gaps around empty rows (`topside`) once possible with
 * `grid-collapse` property and remove alternative `grid-template-areas`.
 * https://github.com/w3c/csswg-drafts/issues/5813 */
body {
  display: grid;
  gap: 0.8em;
  grid-template-areas:
    "header    header  header"
    "nav       nav     nav"
    "leftside  topside rightside"
    "leftside  main    rightside";
  grid-template-columns: 1fr minmax(max-content, 2fr) 1fr;
  font-family: system-ui;
  margin: 0.4em;
}
body:not(:has(.topside-area)) {
  grid-template-areas:
    "header    header  header"
    "nav       nav     nav"
    "leftside  main    rightside";
}

header {
  grid-area: header;
}

.navigation {
  display: flex;
  grid-area: nav;
}
.navigation > .tab + .tab.right {
  margin-inline-start: 4%;
}
.navigation > .tab {
  border-bottom: solid 2px var(--color-nav-gray);
  flex: 1;
  font-size: 1rem;
  justify-content: center;
  padding-block: 0.4em;
}
.navigation > .tab:hover,
.navigation > .tab:focus-visible {
  background-color: var(--color-focus-gray);
}
.navigation > .tab.active {
  border-bottom: solid 4px var(--color-blue);
  color: var(--color-blue);
  fill: var(--color-blue);
}

.topside-area {
  grid-area: topside;
}
.leftside-area {
  grid-area: leftside;
}
.main-area {
  grid-area: main;
}
.rightside-area {
  grid-area: rightside;
}

.buttongrid {
  display: grid;
  gap: 0.4em;
  grid-template-areas: "context empty tools";
  grid-template-columns: auto 1fr auto;
  grid-template-rows: max-content;
}
.tools-area {
  grid-area: tools;
}


#flashes {
  display: grid;
  gap: 0.2em;
  grid-template-columns: 1fr auto auto auto 1fr;
  left: 0;
  pointer-events: none;
  position: fixed;
  right: 0;
  top: 0.4em;
  z-index: var(--z-index-flashes);
}
.flash {
  align-items: center;
  border-radius: 0.2em;
  color: white;
  display: grid;
  grid-column: 2/5;
  grid-template-columns: subgrid;
  pointer-events: auto;
}
.flash.alert:before {
  content: url('pictograms/alert-outline.svg');
  height: 1.4em;
  margin: 0 0.5em;
  width: 1.4em;
}
.flash.alert {
  border-color: var(--color-red);
  background-color: var(--color-red);
}
.flash.notice:before {
  content: url('pictograms/check-circle-outline.svg');
  height: 1.4em;
  margin: 0 0.5em;
  width: 1.4em;
}
.flash.notice {
  border-color: var(--color-blue);
  background-color: var(--color-blue);
}
.flash > div {
  grid-column: 2;
}
/* NOTE: currently flash <button> inherits some unnecessary styles from generic
 * <button>. */
.flash > button {
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 1.4em;
  font-weight: bold;
  grid-column: 3;
  opacity: 0.6;
  padding: 0.2em 0.4em;
}
.flash > button:hover {
  opacity: 1;
}


/* TODO: hover over `:invalid` should work like in measurements
 * (thin vs thick border). */
.labeled-form {
  align-items: center;
  display: grid;
  gap: 0.9em 1.1em;
  grid-template-columns: 1fr minmax(max-content, 0.5fr) 1fr;
}
.labeled-form label {
  color: var(--color-gray);
  font-size: 0.9rem;
  grid-column: 1;
  text-align: right;
  white-space: nowrap;
}
.labeled-form label.required {
  font-weight: bold;
}
/* Don't style `label.error + input` if case already covered by `input:invalid`. */
.labeled-form label.error {
  color: var(--color-red);
}
.labeled-form em {
  color: var(--color-text-gray);
  font-size: 0.75rem;
  font-weight: normal;
}
.labeled-form input {
  grid-column: 2;
}
.labeled-form input[type=submit] {
  font-size: 1rem;
  margin: 1em auto 0 auto;
  padding: 0.75em;
}
.labeled-form .auxiliary {
  grid-column: 3;
  /* If more buttons are needed, `grid-row` can be replaced with
   * `reading-flow: grid-columns` to ensure proper [tabindex] order. */
  grid-row: 1;
  height: 100%;
  padding-block: 0;
}


/* TODO: remove `.items` class (?) and make `form table` work properly. */
table.items {
  border-spacing: 0;
  border: solid 1px var(--color-border-gray);
  border-radius: 0.25em;
  font-size: 0.85rem;
  text-align: left;
}
table:not(:has(tr)) {
  display: none;
}
table.items thead {
  font-size: 0.8rem;
}
table.items thead,
table.items tbody tr:hover {
  background-color: var(--color-focus-gray);
}
table.items th {
  padding-block: 0.75em;
  text-align: center;
}
table.items th,
table.items td {
  padding-inline: 1em 0;
}
/* For <a> to fill <td> completely, we use an `::after` pseudoelement. */
table.items td.link {
  padding: 0;
  position: relative;
}
table.items td.link a {
  color: inherit;
  font: inherit;
}
table.items td.link a::after {
  content: '';
  inset: 0;
  position: absolute;
}
table.items td:first-child {
  padding-inline-start: calc(1em + var(--depth) * 0.8em);
}
table.items td:has(input, select, textarea) {
  padding-inline-start: calc(0.6em - 0.9px);
}
table.items td:first-child:has(input, select, textarea) {
  padding-inline-start: calc(0.6em + var(--depth) * 0.8em - 0.9px);
}
table.items th:last-child {
  padding-inline-end: 0.4em;
}
table.items td:last-child {
  padding-inline-end: 0.1em;
}
table.items td {
  border-top: solid 1px var(--color-border-gray);
  height: 2.4em;
  padding-block: 0.1em;
}
table.items .actions {
  display: flex;
  gap: 0.4em;
  justify-content: end;
}
table.items .actions.centered {
  justify-content: center;
}
table.items tr.dropzone {
  position: relative;
}
table.items tr.dropzone::after {
  content: '';
  inset: 1px 0 0 0;
  position: absolute;
  outline: dashed 2px var(--color-blue);
  outline-offset: -1px;
  z-index: var(--z-index-table-row-outline);
}
table.items td.handle {
  cursor: move;
}
table.items tr.form td {
  vertical-align: top;
}

/* TODO: replace `:hover:focus-visible` combos with proper LOVE style order. */
/* TODO: update table styling: simplify selectors, deduplicate, remove non-font rem. */
table.items td.link a:hover,
table.items td.link a:focus-visible,
table.items td.link a:hover:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 0.05rem;
  text-underline-offset: 0.2rem;
}
table.items td.link a:hover {
  color: var(--color-blue);
}
table.items td.link a:focus-visible {
  text-decoration-color: var(--color-gray);
}
table.items td.link a:hover:focus-visible {
  color: var(--color-dark-blue);
}

table.items td:not(:first-child),
.grayed {
  color: var(--color-table-gray);
  fill: var(--color-table-gray);
}
table.items svg {
  height: 1rem;
  vertical-align: middle;
  width: 1rem;
}
table.items svg:last-child {
  height: 1.2rem;
  width: 1.2rem;
}
table.items td.svg {
  text-align: center;
}
table.items td.number {
  text-align: right;
}
table.items .button,
table.items button,
table.items input[type=submit] {
  font-weight: normal;
  height: 100%;
  padding: 0.4em;
}
table.items input:not([type=submit]):not([type=checkbox]),
table.items select,
table.items textarea {
  padding-block: 0.375em;
}
/* TODO: find a way (layers?) to style <input>s differently while making sure
 * hover works properly without using `:not(:hover)` selectors here. */
table.items .button:not(:hover),
table.items button:not(:hover),
table.items input:not(:hover),
table.items select:not(:hover),
table.items textarea:not(:hover) {
  border-color: var(--color-border-gray);
}
table.items .button:not(:hover),
table.items button:not(:hover),
table.items input[type=submit]:not(:hover),
table.items select:not(:hover) {
  color: var(--color-table-gray);
}
table.items select:focus-within,
table.items select:focus-visible {
  color: black;
}
form table.items {
  border: none;
}
form table.items td {
  border: none;
  text-align: left;
  vertical-align: middle;
}
form table.items td:first-child {
  color: inherit;
}


.centered {
  margin: 0 auto;
}
.extendedright {
  margin-right: auto;
}
.hexpand {
  width: 100%;
}
.hflex {
  display: flex;
  gap: 0.8em;
}
.hflex.reverse {
  flex-direction: row-reverse;
}
.hflex.centered {
  justify-content: center;
}
.hint {
  color: var(--color-table-gray);
  font-style: italic;
  font-size: 0.9rem;
  text-align: center;
}
.vflex {
  display: flex;
  gap: 0.8em;
  flex-direction: column;
}


details {
  align-content: center;
  position: relative;
}
summary {
  align-items: center;
  color: var(--color-gray);
  display: flex;
  gap: 0.2em;
  height: 100%;
  white-space: nowrap;
}
summary::before {
  background-color: #000;
  content: "";
  height: 1em;
  mask-image: url('pictograms/chevron-down.svg');
  mask-size: cover;
  width: 1em;
}
summary:has(.button) {
  padding-block: 0;
  padding-inline-end: 0;
}
summary .button {
  border: solid 1px var(--color-border-gray);
  border-radius: inherit;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-style: none none none solid;
  height: 100%;
}
summary span {
  width: 100%;
}
details[open] summary::before {
  transform: rotate(180deg);
}
summary::marker {
  padding-left: 0.25em;
}
/* NOTE: use `details[open]::details-content` once widely available. */
details[open] ul {
  background: white;
  border: solid 1px var(--color-border-gray);
  border-radius: 0.25em;
  box-shadow: 1px 1px 3px var(--color-border-gray);
  margin: -1px 0 0 0;
  padding-left: 0;
  position: absolute;
  width: 100%;
}
li:hover {
  background-color: var(--color-focus-gray);
}
li label {
  align-items: center;
  display: flex;
  line-height: 1.4em;
}
li input[type=checkbox] {
  margin: 0 0.25em;
}
li::marker {
  content: '';
}
/*
 * TODO:
 * * disable <label> containing disabled checkbox: `label:has(input[disabled])`,
 * * disabled label styling,
 * * focused label styling (currently only checkbox has focus),
 * * disabled checkbox blue square focus removal.
 * */