:root[data-theme=os] {
  @media (prefers-color-scheme: light) {
    --c-main-text: #3B3F45;
    --c-main-bg: #F8FAFC;

    --c-ebike: #000;

    --c-table-stripe: #FFF;
    --c-table-border: #DDD;
    --c-table-hover: #0FF;

    color-scheme: light;
  }
  
  @media (prefers-color-scheme: dark) {
    --c-main-text: #F8FAFC;
    --c-main-bg: #1B1B1B;

    --c-ebike: #FFF;

    --c-table-stripe: #000;
    --c-table-border: #444;
    --c-table-hover: #000080;

    color-scheme: dark;
  }
}
:root[data-theme=light] {
  --c-main-text: #3B3F45;
  --c-main-bg: #F8FAFC;

  --c-ebike: #000;

  --c-table-stripe: #FFF;
  --c-table-border: #DDD;
  --c-table-hover: #0FF;

  color-scheme: light;
}
:root[data-theme=dark] {
  --c-main-text: #F8FAFC;
  --c-main-bg: #1B1B1B;

  --c-ebike: #FFF;

  --c-table-stripe: #000;
  --c-table-border: #444;
  --c-table-hover: #000080;

  color-scheme: dark;
}
:root {
  /* color-scheme: light dark; */
  --c-theme-first: #0075B0;
  --c-theme-second: #00ABDF;
  --c-bike: #0075B0;
  --c-ebike-strike: #FFE074;
  --c-dock: #1E4B70;

  --c-tooltip-bg: #FFF;

  --c-bg-alert: unset;
  --c-fg-alert: unset;
  --c-alert-info-light: #D9EDF7;
  --c-alert-info-dark: #31708F;
  --c-alert-error-light: #F2DEDE;
  --c-alert-error-dark: #A94442;
  --c-alert-success-light: #DFF0D8;
  --c-alert-success-dark: #3C763D;
  --c-alert-warning-light: #FCF8E3;
  --c-alert-warning-dark: #8A6D3B;

  --l-border-radius: 3px;
  --l-gap: .5rem;
  --l-height-top: 2rem;
  --l-height-bottom: 2.8rem;
  --l-icon-size: 1em;

  --s-border: 1px dotted var(--c-theme-first);

  --kpi-col: 2;

  /* --c-button-border: buttonborder; */
  /* --c-button-bg: buttonface; */
}
*, *:after, *:before {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
html {
  font-size: 18px;
}
body {
  background: var(--c-main-bg);
  margin: 0;
}
body, input, button, textarea, dialog {
  color: var(--c-main-text);
  font-family: Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.4;
}
a {
  color: var(--c-theme-first);
  text-decoration: none;
}
label, button, input[type=button], input[type=submit], input[type=reset], summary {
  cursor: pointer;
  user-select: none;
}
button:disabled {
  cursor: not-allowed;
}
fieldset {
  border: var(--s-border);
  border-radius: var(--l-border-radius);
}
hr {
  border: 0 none;
  border-bottom: var(--s-border);
  width: 100%;
}

.icon {
  display: block;
  fill: currentColor;
  height: var(--l-icon-size);
  margin: 0 auto;
  width: var(--l-icon-size);
}

.icon--bike {
  color: var(--c-bike);
}
.icon--ebike {
  color: var(--c-ebike);
  fill: var(--c-ebike-strike);
}
.icon--dock {
  color: var(--c-dock);
}

.hide {
  display: none !important;
}

.button-toggle {
  span:first-child, &[aria-pressed=true] span:last-child {
    display: revert;
  }
  span:last-child, &[aria-pressed=true] span:first-child {
    display: none;
  }
}

/*=== alert */
.alerts-wrapper {
  bottom: var(--l-height-bottom);
  left: var(--l-gap);
  position: fixed;
  width: calc(100% - var(--l-gap) * 2);
  z-index: 1;
}
.alert {
  align-items: center;
  border: 1px solid rgba(0, 0, 0, .25);
  border-radius: var(--l-border-radius);
  display: flex;
  justify-content: space-between;
  margin: 1em 0;
  padding: .25em .5em;
  width: 100%;
  background: var(--c-bg-alert);
  color: var(--c-fg-alert);

  a {
    text-decoration: underline;
  }
}
.alert__close {
  --l-icon-size: 2em;
  background: transparent;
  border: 0 none;
  border-radius: 100%;
  color: inherit;
  font-size: inherit;
  height: 2em;
  margin-left: var(--l-gap);
  padding: 0;

  &:hover,
  &:focus,
  &:active {
    background: var(--c-fg-alert);
    box-shadow: 0 0 0 2px var(--c-fg-alert);
    color: var(--c-bg-alert);
  }
}
.alert--info {
  --c-bg-alert: var(--c-alert-info-light);
  --c-fg-alert: var(--c-alert-info-dark);
}
.alert--error {
  --c-bg-alert: var(--c-alert-error-light);
  --c-fg-alert: var(--c-alert-error-dark);
}
.alert--success {
  --c-bg-alert: var(--c-alert-success-light);
  --c-fg-alert: var(--c-alert-success-dark);
}
.alert--warning {
  --c-bg-alert: var(--c-alert-warning-light);
  --c-fg-alert: var(--c-alert-warning-dark);
}

/*=== tooltip */
*[tabindex="0"][title]:focus {
  outline: 2px solid var(--c-main-text);
  position: relative;

  &:after {
    background: var(--c-tooltip-bg);
    border: 2px solid var(--c-main-text);
    border-radius: var(--l-border-radius);
    color: var(--c-main-text);
    content: attr(title);
    left: -100%;
    padding: 0 0.2em;
    position: absolute;
    top: -90%;
    width: max-content;
    z-index: 0;
  }
}

/*=== button spinner */
.button-spinner {
  &.rotating {
    pointer-events: none;
    svg {
      animation: rotating 2s linear infinite;
    }
  }
  &.success {
    svg {
      color: var(--c-alert-success-dark);
    }
    .icon-clipboard {
      display: unset;
    }
  }
  & .icon-clipboard {
    display: none;
  }
}
@keyframes rotating {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/*=== grid */
html, body {
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
}
.main-content {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  overflow: auto;
}
.main-section--settings {
  margin-top: auto;
}

/*=== header */
.main-header {
  background: var(--c-theme-first);
  /* background: linear-gradient(to right, var(--c-theme-first) 0%, var(--c-theme-second) 100%); */
  color: var(--c-main-bg);
  user-select: none;
}
.main-header__title {
  font-size: inherit;
  margin: 0;
}
.main-header__title__icon {
  --l-icon-size: var(--l-height-top);
  display: inline;
  fill: transparent; /* to hide the strike */
  margin-right: var(--l-gap);
  vertical-align: middle;
}

/*=== footer */
.main-footer {
  background: linear-gradient(to right, var(--c-theme-first) 0%, var(--c-theme-second) 100%);
  color: var(--c-main-bg);
  display: flex;
  padding-bottom: calc(var(--l-gap) / 2);
  padding-top: calc(var(--l-gap) / 2);

  button {
    margin-left: auto;
    position: relative;
  }
}

/*=== sections */
.main-header,
.main-section,
.main-footer {
  padding-left: var(--l-gap);
  padding-right: var(--l-gap);
}

/* === kpi */
.kpi {
  display: grid;
  grid-column: span var(--kpi-col);
  grid-template-areas:
  "count icon" 
  "type  type";
  grid-template-columns: subgrid;
  justify-items: center;
}
.kpi__count {
  font-size: 1.8rem;
  font-weight: bold;
  grid-area: count;
  justify-self: right;
  line-height: 2rem;
}
.kpi .icon {
  --l-icon-size: 2em;
  grid-area: icon;
  justify-self: left;
  margin: 0;
}
.kpi__type {
  font-size: 0.6rem;
  grid-area: type;
}

/*=== favorite */
.favorites {
  --favs: 1;
  --fav-col: calc(var(--items) * var(--kpi-col));
  --col: calc(var(--fav-col) * var(--favs));
  display: grid;
  gap: 0 var(--l-gap);
  grid-template-columns: repeat(var(--col), 1fr);

  .compact & {
    --favs: 2;
  }
}
.favorite {
  display: grid;
  grid-column: span var(--fav-col);
  grid-row: span 5;
  grid-template-columns: subgrid;
  grid-template-rows: subgrid;
  margin-bottom: calc(var(--l-gap) * 2);

  > * {
    grid-column: 1 / -1;
  }

  .compact & {
    border: var(--s-border);
  }
}
.favorite__title {
  font-weight: bold;
  grid-row: 2;
}
.favorite__id {
  font-size: 0.8rem;
  font-weight: normal;
}
.favorite__description {
  grid-row: 3;
}
.description__label {
  display: none;

  .edit & {
    display: block;
  }
}
.description__textarea {
  pointer-events: none;

  &:empty {
    display: none;
  }

  .edit & {
    background: field;
    border: 1px solid var(--c-main-text);
    border-radius: var(--l-border-radius);
    padding: 2px;
    pointer-events: unset;

    &:empty {
      display: revert;
    }
  }
}
.favorite__actions {
  display: none;
  grid-row: 1;

  .edit & {
    display: block;
  }
}
.favorite:first-child .favorite__up,
.favorite:last-child .favorite__down {
  visibility: hidden;
}
.favorite__status {
  grid-row: 4;
}
.favorite__kpis {
  display: grid;
  grid-row: 5;
  grid-template-columns: subgrid;
}
.favorite__status span:after {
  content: attr(title);
  font-size: 0.6rem;
  padding-left: 0.1rem;
}

/*=== generic table */
table {
  border-spacing: 0;
  min-width: 100%;
  position: relative;
  user-select: none;
}
th, td {
  border: .5px solid var(--c-table-border);
  padding: 2px;
}
thead {
  position: sticky;
  top: 0;
  z-index: 1; /* to fix the disabled bike strikethrough */

  tr {
    background: var(--c-main-bg);
  }
}
tbody {
  tr {
    background: var(--c-main-bg);
  }
  th {
    background: inherit;
    font-weight: normal;
    left: 0;
    position: sticky;
    text-align: left;
  }
  tr:hover {
    background: var(--c-table-hover) !important;
  }
}

/*=== stations table */
.stations-header-container {
  display: flex;
  flex-direction: column;
  gap: var(--l-gap);
  left: 0;
  margin: 0 var(--l-gap);
  position: sticky;
  width: calc(100vw - var(--l-gap) * 2);
}
.stations-search {
  line-height: 1.6;
}
.stations-list {
  table& {
    margin-bottom: calc(var(--l-gap) * 2);
    margin-left: calc(-1 * var(--l-gap));
    margin-right: calc(-1 * var(--l-gap));
    min-width: calc(100% + var(--l-gap) * 2);

    &:has(#toggle-stations[aria-pressed=false]) {
      thead tr:nth-child(2),
      .stations-search,
      .stations-last-updated,
      tbody {
        display: none;
      }
    }
  }
  thead {
    th {
      background: var(--c-theme-second);
      border-color: var(--c-theme-first);
    }
    th:nth-child(2) {
      left: 0;
      position: sticky;
    }
    tr:nth-child(1) {
      td {
        background: unset;
        border: unset;
        padding: unset;
        text-align: unset;
        vertical-align: unset;
      }
    }
  }
  tbody {
    tr:nth-child(odd) {
      background: var(--c-table-stripe);
    }
    td, th {
      vertical-align: top;
    }
  }
  td {
    &:nth-child(3),
    &:nth-child(6),
    &:nth-child(7),
    &:nth-child(8),
    &:nth-child(9),
    &:nth-child(10) {
      text-align: right;
    }
    &:nth-child(4) {
      text-align: center;
    }
    &[colspan="11"] {
      text-align: center;
    }
  }
}

.station__favorite-toggle {
  background: transparent;
  border-color: transparent;
  border-top-width: 0;
  padding-top: 0;
  pointer-events: none;

  .edit & {
    background: revert;
    border-color: revert;
    border-top-width: revert;
    padding-top: revert;
    pointer-events: revert;
  }

  span {
    font-size: 1.2rem;
    line-height: 1;
  }
}

/*=== station detail */
.detail-dialog {
  background: var(--c-main-bg);
  height: 100%;
  width: 100%;
}
.detail-dialog__body {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.detail-dialog__main {
  flex: 1 1 auto;
  overflow: auto;
}
.detail-dialog__footer {
  column-gap: calc(var(--l-gap) * 2);
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;

  > div {
    flex-basis: 100%;
    padding: .5em 0;
  }
}
.detail {
  display: grid;
  gap: calc(var(--l-gap) / 2);

  td:nth-child(3),
  td:nth-child(4) {
    text-align: right;
  }
}
.detail__title {
  font-weight: bold;
}
.detail__id {
  font-size: 0.8rem;
  font-weight: normal;
}
.detail__description {
  white-space: break-spaces;
}
.detail__status {
  span {
    white-space: nowrap;
  }
  small {
    padding-right: 0.1rem;
  }
  .not-charging {
    filter: grayscale(1);
  }
}
.detail__kpis {
  display: grid;
  gap: 0 var(--l-gap);
  grid-template-columns: repeat(calc(var(--kpi-col) * 3), 1fr);
}
.detail__table {
  .icon {
    --l-icon-size: 1.5em;
  }
  .icon--dock {
    display: inline-block;
    vertical-align: bottom;
  }
}
.detail__bike-disabled td {
  position: relative;

  &:before {
    border-bottom: 1px solid var(--c-main-text);
    content: "";
    left: 0;
    position: absolute;
    top: 50%;
    width: 100%;
  }
}
.detail__bike-id {
  display: inline-block;
  max-width: 5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
  white-space: nowrap;
}
.detail__bike-show {
  display: flex;
  gap: var(--l-gap);

  input[type=radio] {
    cursor: inherit;
    height: 0;
    margin: 0;
    opacity: 0;
    padding: 0;
    width: 0;

    &:focus ~ span {
      outline: 2px solid var(--c-theme-first);
      outline-offset: 2px;
      border-radius: 1px;
    }

    &:focus:not(:focus-visible) ~ span {
      outline: none;
    }

    &:checked ~ span {
      border-bottom: 3px solid var(--c-theme-first);
      font-weight: bold;
    }
  }

  &:has(#detail__bike-show-0:checked)  ~ table tbody {
    tr:nth-child(odd) {
      background: var(--c-table-stripe);
    }
  }
  &:has(#detail__bike-show-1:checked)  ~ table tbody {
    .detail__bike-ebike {
      display: none;
    }
    tr:nth-child(odd of .detail__bike-bike) {
      background: var(--c-table-stripe);
    }
  }
  &:has(#detail__bike-show-2:checked) ~ table tbody {
    .detail__bike-bike {
      display: none;
    }
    tr:nth-child(odd of .detail__bike-ebike) {
      background: var(--c-table-stripe);
    }
  }
}

/*=== settings */
.settings__details {
  border: var(--s-border);
  border-radius: var(--l-border-radius);
  margin-bottom: calc(var(--l-gap) * 2);
  padding: 0 var(--l-gap);

  &[open] {
    .settings-summary {
      border-bottom: var(--s-border);
      margin: 0 calc(-1 * var(--l-gap));
      padding-left: var(--l-gap);
    }
  }
}
.settings__summary {
  background: var(--c-main-bg);
  line-height: 1.4;
  padding: 2px 0;
  position: sticky;
  top: 0;
  z-index: 1;
}
.settings__content {
  display: flex;
  flex-direction: column;
  gap: calc(var(--l-gap) * 2);
  margin: calc(var(--l-gap) * 2) 0;
}
.settings__fieldset-block {
  display: flex;
  flex-direction: column;
  gap: var(--l-gap);
}

/* === info */
.main-section--info {
  font-size: 0.9rem;
}

/* === button load */
.load-bikes,
.load-information {
  & {
    align-items: center;
    display: flex;
    justify-content: center;
  }
  span {
    margin-right: 0.2em;
  }
  svg {
    margin: 0;
  }
}

/*=== input checkbox with svg icons */
.input-checkbox__label {
  align-items: center;
  display: flex;
  gap: var(--l-gap);
  position: relative;
  width: fit-content;
}
.input-checkbox__check {
  cursor: inherit;
  font-size: 100%;
  height: var(--l-icon-size);
  margin: 0;
  opacity: 0;
  padding: 0;
  position: absolute;
  width: var(--l-icon-size);
}
.input-checkbox__icon {
  margin: 0;
}
/* visually show focus outline when the SVG receives focus */
.input-checkbox__check:focus ~ .input-checkbox__icon {
  outline: 2px solid var(--c-theme-first);
  outline-offset: 2px;
  border-radius: 1px;
}
/* hide the focus styles for mouse users */
.input-checkbox__check:focus:not(:focus-visible) ~ .input-checkbox__icon {
  outline: none;
}
.input-checkbox__icon__checked {
  display: none;
}
.input-checkbox__check:checked ~ .input-checkbox__icon .input-checkbox__icon__checked {
  display: block;
}

/* === input file */
.input-file__label,
.input-file__input {
  display: none;
}

/* === debug */
*::selection {
  color: red !important;
  background-color: yellow !important;
}
::backdrop {
  background-image: linear-gradient(
    45deg,
    magenta,
    rebeccapurple,
    dodgerblue,
    green
  );
  opacity: 0.75;
}