stylus/options/options.css

html {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: none;
}

body {
  background: none;
  font-family: "Helvetica Neue", Helvetica, sans-serif;
  font-size: 12px;
  display: flex;
  flex-direction: column;
  width: auto;
  max-width: 800px;
  max-height: calc(100vh - 32px);
  border: 1px solid var(--c60);
  box-shadow: 0px 5px 15px 3px hsla(0, 0%, 0%, .35);
  animation: scalein .25s ease-in-out;
}

body.scaleout {
  animation: scaleout .25s ease-in-out;
}

#options {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.options-wrapper {
  overflow-y: auto;
}

a {
  color: var(--fg);
  transition: color .5s;
}

a:hover {
  color: var(--c40);
}

a:hover .svg-icon,
.svg-icon:hover {
  fill: var(--fg);
}

.svg-inline-wrapper .svg-icon {
  pointer-events: none;
}

#options-close-icon .svg-icon {
  fill: var(--c40);
  transition: fill .5s;
}

#options-close-icon:hover .svg-icon {
  fill: var(--fg);
}

#options-close-icon {
  display: inline-flex;
  cursor: pointer;
  position: absolute;
  right: 6px;
  top: 6px;
}

#options-close-icon .svg-icon {
  height: 20px;
  width: 20px;
}

#options-title {
  font-weight: bold;
  background-color: var(--accent-3);
  padding: .75rem 26px .75rem calc(30% + 4px);
  font-size: 22px;
  letter-spacing: .5px;
  position: relative;
  min-height: 42px;
  box-sizing: border-box;
  border-bottom: 1px solid var(--c40);
}

#options-title::before {
  content: "";
  width: 0;
  height: 0;
  padding: 0 32px 32px 0;
  background: url(/images/icon/32.png);
  position: absolute;
  left: 26px;
  top: 0;
  bottom: 0;
  margin: auto;
}

.firefox .chromium-only,
.chromium-only.chrome-no-popup-border {
  display: none;
}
label.chromium-only > :first-child::after {
  content: '(Chrome)';
  color: var(--c50);
  margin-left: .5ex;
}

.block {
  display: flex;
  align-items: center;
  margin: 1em 0;
  border-bottom: 1px dotted var(--c80);
  padding: 0 16px .75em;
  position: relative;
}

.options-wrapper .block:last-child {
  margin-bottom: 0;
  border-bottom: none;
}

h1 {
  min-width: 30%;
  width: 30%;
  margin: 0;
  font-size: 120%;
  font-weight: bold;
  padding-right: 8px;
  box-sizing: border-box;
  overflow-wrap: break-word;
}

.items {
  min-width: 70%;
  width: 70%;
}

label,
.label {
  display: flex;
  margin: .25ex 0;
  align-items: center;
}

.label {
  flex-grow: 1;
  justify-content: space-between;
}

label > :first-child {
  transition: text-shadow .1s;
}
.items:not(.no-stretch) label > :first-child {
  margin-right: 8px;
  flex-grow: 1;
}
label:not([disabled]):hover > :first-child {
  text-shadow: 0 0 0.01px rgba(0, 0, 0, .25);
}

input[type=number],
input[type="color"],
select,
.onoffswitch {
  width: 60px;
  box-sizing: border-box;
  flex-shrink: 0;
}

select.cloud-name {
  width: auto;
}

button {
  text-align: center;
}

input[type=number] {
  text-align: right;
}

input[type=number]:invalid,
input[type=text]:invalid {
  background-color: rgba(255, 0, 0, 0.1);
  color: darkred;
}

input[type="color"] {
  box-sizing: border-box;
  height: 2em;
}

input[type=time] {
  margin: 0 .5em;
  max-width: 7em; /* TODO: remove when strict_min_version >= 57 */
}

input[type=radio] {
  margin-top: 0;
  vertical-align: text-top;
}

#actions {
  justify-content: space-around;
  align-items: stretch;
  flex-wrap: wrap;
  padding: .5em 1em 1em;
  white-space: nowrap;
  background-color: rgba(0, 0, 0, .05);
  margin: 0;
  border-top: 1px solid var(--c60);
  border-bottom: none;
  min-height: min-content; /* workaround for old Chrome ~70 bug when the window height is small */
}

#actions button {
  width: auto;
  margin-top: .5em;
}

#actions button:not(:last-child) {
  margin-right: 4px;
}

[data-cmd="check-updates"] button {
  position: relative;
}
[data-cmd="note"] {
  padding: .5em 0 .5em 0;
  cursor: pointer;
}
.update-in-progress [data-cmd="check-updates"] {
  opacity: .5;
  pointer-events: none;
}

.update-in-progress #update-progress {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  background-color: currentColor;
  content: "";
  opacity: .35;
}

#updates-installed {
  position: absolute;
  font-size: 85%;
  margin-top: 1px;
}

#updates-installed::after {
  content: attr(data-value);
  margin-left: .5ex;
  font-weight: bold;
}

#updates-installed:not([data-value]),
#updates-installed[data-value=""] {
  display: none;
}

html:not(.firefox):not(.opera) #updates {
  margin-bottom: 0;
}

.svg-inline-wrapper .svg-icon {
  width: 16px;
  height: 16px;
  fill: var(--c40);
  vertical-align: sub;
}

.svg-inline-wrapper:hover .svg-icon {
  fill: var(--fg);
}

#message-box.note {
  align-items: center;
  justify-content: center;
  white-space: pre-wrap;
}

#message-box.note > div {
  max-width: 40em;
  top: unset;
  right: unset;
  position: relative;
}

.sync-status {
  width: 0; /* together with flex-grow makes it reuse the current width */
  flex-grow: 1;
  padding-right: 8px;
  box-sizing: border-box;
}
.sync-status::first-letter {
  text-transform: uppercase;
}
.sync-options .drive-options {
  margin: 0;
  padding: 0;
  border: 0;
}
.drive-options > :not([hidden]) {
  display: table;
  width: 100%;
}
.drive-options > * > label {
  display: table-row;
}
.drive-options > * > label > * {
  display: table-cell;
}
.drive-options > * input {
  width: 100%;
  box-sizing: border-box;
}
.sync-options .actions button {
  margin-top: .5em;
}

@keyframes scalein {
  0% {
    transform: scale3d(.3, .3, .3);
  }
  100% {
    transform: scale3d(1, 1, 1);
  }
}

@keyframes scaleout {
  100% {
    transform: scale3d(0, 0, 0);
  }
}