stylus/popup.css

body {
  width: 252px;
  font-size: 12px;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  margin: 0;
}

body > div:not(#installed) {
  margin-left: 0.75em;
  margin-right: 0.75em;
}

input[type=checkbox] {
  outline: none;
}

#disable-all-wrapper {
  padding: 0.3em 0 0.6em;
}

#no-styles {
  font-style: italic;
}

#popup-shortcuts-button {
  margin-left: 3px;
}

.checker {
  display: inline;
}

.style-name {
  cursor: default;
  font-weight: bold;
  display: block;
}

a,
a:visited {
  color: black;
  text-decoration-skip: ink;
}

.left-gutter {
  display: table-cell;
  width: 16px;
  vertical-align: top;
}

.left-gutter input {
  margin-bottom: 1px;
  margin-top: 0;
  margin-left: 0;
}

.main-controls {
  display: table-cell;
}

#unavailable,
#installed {
  border-bottom: 1px solid black;
  padding-bottom: 2px;
}

body > DIV:last-of-type,
body.blocked > DIV {
  border-bottom: none;
}

#installed {
  padding-top: 2px;
  max-height: 434px;
  overflow-y: auto;
}

#installed.disabled .style-name {
  text-decoration: line-through;
}

#installed .actions {
  cursor: default;
}

#installed .actions a {
  cursor: pointer;
  text-decoration: none;
}

/* entry */

.entry {
  display: flex;
  align-items: center;
  padding: 5px 0.75em;
}

.entry:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.05);
}

.entry .style-edit-link {
  margin-right: 2px;
}

.entry .style-edit-link,
.entry .delete {
  display: inline-block;
  padding: 0 1px 0;
}

.entry .main-controls {
  display: flex;
  flex: 1;
  width: calc(100% - 20px);
  align-items: center;
}

.entry .main-controls label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 5px;
}

.not-applied .checker,
.not-applied .style-name,
.not-applied .actions > * {
  opacity: .2;
  transition: opacity .5s ease-in-out .25s, color .5s ease-in-out .25s;
}

.not-applied:hover .checker,
.not-applied:hover .style-name,
.not-applied:hover .actions > * {
  opacity: 1;
}

.not-applied:hover .style-name {
  color: darkorange;
}

.regexp-problem-indicator {
  background-color: darkorange;
  width: 15px;
  height: 15px;
  line-height: 16px;
  border-radius: 8px;
  margin-right: 4px;
  margin-left: 4px;
  text-align: center;
  color: white;
  font-weight: bold;
  box-sizing: border-box;
  cursor: pointer;
}

.regexp-partial .actions,
.regexp-invalid .actions {
    order: 2;
}

#regexp-explanation {
  position: fixed;
  background-color: white;
  left: 0;
  right: 0;
  padding: .5rem;
  font-size: 90%;
  border-top: 2px solid black;
  border-bottom: 2px solid black;
  box-shadow: 0 0 100px black;
  display: flex;
  flex-direction: column;
}

#regexp-explanation > div {
  display: none;
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.regexp-partial #regexp-partial,
.regexp-invalid #regexp-invalid {
  display: block;
}

#regexp-explanation > div:not(:last-child) {
  margin-bottom: .5rem;
}

.svg-icon {
  pointer-events: none;
  transition: fill .5s;
}
a:hover .svg-icon {
  fill: #000000;
}

body > .actions {
  margin-top: 0.5em;
}

.actions > div:not(:last-child):not(#disable-all-wrapper),
.actions > .main-controls > div:not(:last-child),
#unavailable:not(:last-child),
#unavailable + .actions {
  margin-bottom: 0.75em;
}

.actions input,
.actions label {
  vertical-align: middle;
}

#unavailable {
  border: none;
  display: none;
  margin-top: 0.75em;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

body.blocked #installed,
body.blocked #find-styles,
body.blocked #write-style,
body:not(.blocked) #unavailable {
  display: none;
}

body.blocked #unavailable {
  display: flex;
}

/* Never shown, but can be enabled with a style */

.enable,
.disable {
  display: none;
}

/* 'New style' links */

#write-style-for {
  margin-right: .6ex
}

.write-style-link {
  margin-left: .6ex
}

.write-style-link::before,
.write-style-link::after {
  font-size: 12px
}

.write-style-link::before {
  content: "\00ad"; /* "soft" hyphen */
}

#match {
  overflow-wrap: break-word;
  display: inline-block;
}

/* "breadcrumbs" 'new style' links */
.breadcrumbs > .write-style-link {
  margin-left: 0
}

.breadcrumbs:hover a {
  color: #bbb;
  text-decoration: none
}

/* use just the subdomain name instead of the full domain name */
.breadcrumbs > .write-style-link[subdomain]:not(:nth-last-child(2)) {
  font-size: 0
}

.breadcrumbs > .write-style-link[subdomain]:not(:nth-last-child(2))::before {
  content: attr(subdomain);
}

/* "dot" after each subdomain name */
.breadcrumbs > .write-style-link[subdomain]::after {
  content: "."
}

/* no "dot" after top-level domain */
.breadcrumbs > .write-style-link:nth-last-child(2)::after {
  content: none
}

/* "forward slash" before path ("this URL") */
.breadcrumbs > .write-style-link:last-child::before {
  content: "\200b/"
}

.breadcrumbs > .write-style-link:last-child:first-child::before,
.breadcrumbs > .write-style-link[subdomain=""] + .write-style-link::before {
  content: none
}

/* suppress TLD-only link */
.breadcrumbs > .write-style-link[subdomain=""] {
  display: none
}

/* :hover style */
.breadcrumbs.url\(\) > .write-style-link,

/* :hover or :focus on "this URL" sets class="url()" */
.breadcrumbs > .write-style-link:hover,
.breadcrumbs > .write-style-link:focus,
.breadcrumbs > .write-style-link:hover ~ .write-style-link[subdomain],
.breadcrumbs > .write-style-link:focus ~ .write-style-link[subdomain] {
  color: inherit;
  text-decoration: underline;
  text-decoration-skip: ink;
}

/* action buttons */

#popup-options {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  padding: 1.2em 0;
}

#popup-options button {
  margin: 0 2px;
  width: 33%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* confirm */

#confirm,
#confirm > div > span {
  align-items: center;
  justify-content: center;
}

#confirm {
  z-index: 2147483647;
  display: none;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  margin: 0 !important;
  box-sizing: border-box;
  background-color: rgba(0, 0, 0, 0.4);
  animation: lights-off .5s cubic-bezier(.03, .67, .08, .94);
  animation-fill-mode: both;
}

#confirm.lights-on {
  animation: lights-on .25s ease-in-out;
  animation-fill-mode: both;
}

#confirm.lights-on > div {
  display: none;
}

#confirm[data-display=true] {
  display: flex;
}

#confirm > div {
  width: 80%;
  height: 100px;
  max-height: 80%;
  min-height: 8em;
  background-color: #fff;
  display: flex;
  flex-direction: column;
  border: solid 2px rgba(0, 0, 0, 0.5);
}

#confirm > div > span {
  display: flex;
  flex: 1;
  padding: 0 10px;
}

#confirm > div > b {
  padding: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#confirm > div > div {
  padding: 10px;
  text-align: center;
}

.non-windows #confirm > div > div {
  direction: rtl;
  text-align: right;
}

@keyframes lights-off {
  from {
    background-color: transparent;
  }
  to {
    background-color: rgba(0, 0, 0, 0.4);
  }
}

@keyframes lights-on {
  from {
    background-color: rgba(0, 0, 0, 0.4);
  }
  to {
    background-color: transparent;
  }
}