/*
 * 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>, <table>, <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: change :root -> <html> ? */
: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?; add CSS
 * @layer requirements in README */
/* Disable elements with:
 *  `[aria-disabled=true]` - non-form elements (e.g. links),
 *  `[disabled]` - form controls, that may be enabled conditionally,
 *  `[readonly]` - form controls, that stay disabled for form lifetime. */
[aria-disabled=true],
[disabled] {
  border-color: var(--color-border-gray) !important;
  color: var(--color-border-gray) !important;
  /* NOTE: cannot set cursor when `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;
}
/* Styles set `display` without distinguishing between [hidden] elements, making
 * 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.
 */
/* TODO: merge selectors using :is() */
a,
button,
details,
input,
select,
summary,
textarea {
  background-color: inherit;
  font: inherit;
}
details,
input,
select {
  text-align: inherit;
}
input,
select,
summary,
textarea {
  border: 1px solid var(--color-gray);
  border-radius: 0.25em;
  padding: 0.2em 0.4em;
}
svg {
  height: 1.4em;
  margin: 0 0.2em 0 0;
  width: 1.4em;
}
svg:last-child {
  margin-right: 0;
}
textarea {
  margin: 0;
}
input[type=checkbox] {
  accent-color: var(--color-blue);
  appearance: none;
  -webkit-appearance: none;
  display: flex;
  height: 1.1em;
  margin: 0;
  padding: 0;
  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;
  text-align: end;
}
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
/* Text color of table form controls:
 *  - black for row/table forms,
 *  - inherited for internal (column specific) buttons/forms. */
table input,
table select,
table summary,
table textarea {
  border-color: var(--color-border-gray);
}
table input,
table select,
table textarea {
  padding-block: 0.375em;
}
table form input,
table form select,
table form summary,
table form textarea {
  color: inherit;
}
table svg:not(:only-child) {
  height: 1.25em;
  width: 1.25em;
}
input:focus-visible,
/* TODO: select:focus-visible is redundant with -within? */
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);
  color: black;
}
input:hover,
select:hover,
summary:hover,
textarea:hover {
  border-color: var(--color-blue);
  outline: 1px solid var(--color-blue);
}
select:hover,
summary:hover {
  color: black;
  cursor: pointer;
}
/* TODO: style <details>/<summary> focus to match <select> as much as possible.
summary:focus-visible::before,
summary:hover::before {
  background-color: black;
}
 */
input:invalid,
select:invalid,
textarea:invalid {
  border-color: var(--color-red);
  outline-color: var(--color-red);
}
pre {
  display: inline;
  font: inherit;
}

/* `.button`: button-styled <a>, <button>, <input type=submit>.
 * `.link`: any other <a>.
 * `.tab`: tab-styled <a>.
 */
.button,
.link,
.tab {
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.button,
.tab {
  align-items: center;
  color: var(--color-gray);
  display: flex;
  fill: var(--color-gray);
  font-weight: bold;
}
.button {
  border: 1px solid var(--color-gray);
  border-radius: 0.25em;
  font-size: 0.8rem;
  padding: 0.6em 0.5em;
  width: fit-content;
}
.link {
  color: inherit;
  text-decoration: underline 1px var(--color-border-gray);
  text-underline-offset: 0.25em;
}
.auxiliary {
  border-color: var(--color-nav-gray);
  color: var(--color-nav-gray);
  fill: var(--color-nav-gray);
}
table .button {
  border-color: var(--color-border-gray);
  font-weight: normal;
  height: 100%;
  padding: 0.4em;
}
.button:focus-visible,
.tab:focus-visible,
.tab:hover {
  background-color: var(--color-focus-gray);
}
.button: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);
}
.link:focus-visible {
  text-decoration-color: var(--color-gray);
}
.link:hover {
  color: var(--color-blue);
  text-decoration-color: var(--color-blue);
}


/* 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  main    rightside";
  grid-template-columns: 1fr minmax(max-content, 2fr) 1fr;
  font-family: system-ui;
  margin: 0.4em;
}
body:has(> .topside-area) {
  grid-template-areas:
    "header    header  header"
    "nav       nav     nav"
    "leftside  topside rightside"
    "leftside  main    rightside";
}

header {
  grid-area: header;
}

/* TODO: change .navigation -> <nav> ? */
.navigation {
  display: flex;
  grid-area: nav;
}
.navigation > .tab + .tab.right {
  margin-inline-start: 4%;
}
.navigation > .tab {
  border-bottom: 2px solid var(--color-nav-gray);
  flex: 1;
  font-size: 1rem;
  justify-content: center;
  padding-block: 0.4em;
}
.navigation > .tab.active {
  border-bottom: 4px solid 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;
  row-gap: 0.4em;
  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;
  line-height: 2.2em;
  pointer-events: auto;
}
.flash::before {
  filter: invert(1);
  height: 1.4em;
  margin: 0 0.5em;
  width: 1.4em;
}
.flash.alert::before {
  content: url('alert-outline.svg');
}
.flash.alert {
  border-color: var(--color-red);
  background-color: var(--color-red);
}
.flash.notice::before {
  content: url('check-circle-outline.svg');
}
.flash.notice {
  border-color: var(--color-blue);
  background-color: var(--color-blue);
}
.flash svg {
  cursor: pointer;
  fill: white;
  height: 2.2em;
  opacity: 0.6;
  padding: 0.4em 0.5em;
  width: 2.4em;
}
.flash svg:hover {
  opacity: 1;
}


.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;
}

.tabular-form table {
  border: none;
  border-spacing: 0;
}
.tabular-form table td {
  border: none;
  padding-inline-start: 0.4em;
  vertical-align: middle;
}
.tabular-form table td:first-child {
  padding-inline-start: 0;
}
.tabular-form table td:last-child {
  padding-inline-end: 0;
}
.tabular-form table :is(form, input, select, textarea):only-child {
  margin-inline-start: 0;
}


.items-table {
  border: none;
  border-radius: 0.25em;
  border-spacing: 0;
  font-size: 0.85rem;
  text-align: left;
}
.items-table:has(tbody > tr > td) {
  border: 1px solid var(--color-border-gray);
}
.items-table:has(tbody > tr > td) caption {
  display: none;
}
.items-table tbody:not(:has(tr > td)){
  visibility: collapse;
}
.items-table th,
.items-table tr:where(:hover) {
  background-color: var(--color-focus-gray);
}
.items-table th {
  font-size: 0.8rem;
  padding: 0.75em 0 0.75em 1em;
  text-align: center;
}
.items-table th:last-child {
  padding-inline-end: 0.4em;
}
.items-table td {
  border-top: 1px solid var(--color-border-gray);
  height: 2.4em;
  padding: 0.1em 0 0.1em calc(1em + var(--depth) * 0.8em);
}
.items-table td:last-child {
  padding-inline-end: 0.1em;
}
.items-table :is(form, input, select, textarea):only-child {
  margin-inline-start: calc(-0.4em - 0.9px);
}
/* For <a> to fill table cell completely, we use an `::after` pseudoelement. */
/* TODO: expand to whole row? will require adjusting z-index on inputs/buttons */
.items-table td:has(> .link) {
  position: relative;
}
.items-table .link::after {
  content: '';
  inset: -1px 0 0 0;
  position: absolute;
}
.items-table .flex {
  gap: 0.4em;
  justify-content: end;
}
.items-table .dropzone {
  position: relative;
}
.items-table .dropzone::after {
  content: '';
  inset: 1px 0 0 0;
  position: absolute;
  outline: 2px dashed var(--color-blue);
  outline-offset: -1px;
  z-index: var(--z-index-table-row-outline);
}
.items-table .handle {
  cursor: grab;
}
.items-table .form td {
  vertical-align: top;
}
.items-table td:not(:first-child),
.grayed {
  color: var(--color-table-gray);
  fill: var(--color-gray);
}
.items-table td:has(> svg:only-child) {
  text-align: center;
}


.center {
  margin: 0 auto;
}
.hexpand {
  width: 100%;
}
.flex {
  display: flex;
  gap: 0.8em;
}
.flex.reverse {
  flex-direction: row-reverse;
}
.flex.vertical {
  flex-direction: column;
}
.hint {
  color: var(--color-table-gray);
  font-style: italic;
  font-size: 0.9rem;
  text-align: center;
}
.hmin50 {
  min-width: 50%;
}
.hminnumber {
  min-width: 5em;
}
.hmintext {
  min-width: 6em;
}
.hstretch {
  /* `width` conflicts with <input>/<textarea> size defined by [size]/[cols]
   * attributes. It's best to not use these attributes (e.g. set them to 1) when
   * setting width through stylesheet. */
  /* NOTE: `field-sizing` can be considered after upgrade do FF >=152 */
  width: -moz-available;
  width: stretch;
}
.italic {
  color: var(--color-gray);
  font-style: italic;
}
.ralign {
  text-align: right;
}
.rextend {
  margin-right: auto;
}


details {
  align-content: center;
  position: relative;
}
summary {
  align-items: center;
  color: var(--color-gray);
  display: flex;
  gap: 0.4em;
  height: 100%;
  white-space: nowrap;
}
summary::before {
  background-color: currentColor;
  content: "";
  height: 1em;
  mask-image: url('chevron-down.svg');
  mask-size: cover;
  width: 1em;
}
summary:has(.button) {
  padding-block: 0;
  padding-inline-end: 0;
}
summary .button {
  border: 1px solid 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: scaleY(-1);
}
summary::marker {
  padding-left: 0.25em;
}
/* NOTE: use `details[open]::details-content` once widely available. */
details[open] ul {
  background-color: white;
  border: 1px solid 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.
 * */

#measurement_form {
  min-width: 66%;
  width: max-content;
}