stylus/popup/popup.css

html, body {
  height: min-content;
}

body {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  padding: 0 9px 9px;
  font-size: 12px;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  margin: 0;
}

.firefox body {
  background-color: #fff;
}

.firefox .chromium-only {
  display: none;
}

.svg-icon.checked {
  position: absolute;
  height: 8px;
  width: 8px;
  display: none;
  fill: #000;
  margin: 2px 0 0 2px;
}

input[type="checkbox"]:checked:hover + .svg-icon.checked,
.style-name:hover input[type="checkbox"]:checked + .svg-icon.checked {
  fill: hsl(0, 0%, 100%);
}

input[type="checkbox"]:checked + .svg-icon.checked {
  display: inline-flex;
  transition: fill .25s;
}

input[type="checkbox"] {
  -moz-appearance: none;
  -webkit-appearance: none;
  border: 1px solid hsl(0, 0%, 20%);
  height: 12px;
  width: 12px;
  display: inline-flex;
  border-radius: 2px;
  background-color: hsl(0, 0%, 94%);
  outline: none;
  margin: 0;
  transition: background-color .25s, border-color .25s;
}

input[type="checkbox"]:checked:hover, .style-name:hover input[type="checkbox"]:checked {
  background-color: hsl(0, 0%, 54%);
  border-color: #000;
}

input[type="checkbox"]:hover, .style-name:hover input[type="checkbox"],
.entry.disabled .style-name:hover input[type="checkbox"] {
  border-color: #000;
  background-color: hsl(0, 0%, 74%);
}

.entry.disabled input[type="checkbox"],
.entry.not-applied input[type="checkbox"],
.entry.disabled input[type="checkbox"] + .svg-icon.checked,
.entry.not-applied input[type="checkbox"] + .svg-icon.checked {
  transition: background-color .5s ease-in-out .25s, border-color .5s ease-in-out .25s, fill .5s ease-in-out .25s;
}

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

a {
  color: #000;
  transition: color .5s;
  text-decoration-skip: ink;
}

a:hover {
  color: #666;
}

.left-gutter {
  position: relative;
  display: inline-flex;
}

.style-name .left-gutter {
  pointer-events: none;
}

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

#installed {
  border-bottom: 1px solid #000;
  padding-bottom: 2px;
  padding-top: 2px;
  margin: 0 -9px;
  flex-grow: 1;
  width: 100%;
  max-height: 445px;
  overflow-y: auto;
}

#installed .actions {
  cursor: default;
  display: inline-flex;
}

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

/* entry */

.entry {
  display: flex;
  align-items: center;
  padding: 0 9px;
  height: 26px;
}

.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-flex;
  height: 24px;
  width: 18px;
  align-items: center;
  justify-content: center;
}

.entry .main-controls {
  display: inline-flex;
  align-items: center;
  flex-grow: 1;
  overflow: hidden;
  padding-right: 5px;

}

.entry .style-name {
  display: flex;
  flex-grow: 1;
  overflow: hidden;
  height: 100%;
  align-items: center;
}

.entry  .style-name-text {
  color: #000;
  cursor: default;
  font-weight: bold;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin: 1px 0 0 4px;
  pointer-events: none;
}

.entry .style-name:hover .style-name-text {
  color: #000;
}
 
.entry.disabled:not(.not-applied) .style-name,
.entry.disabled:not(.not-applied) .actions,
.entry.not-applied .style-name,
.entry.not-applied .actions {
  opacity: .4;
  transition: opacity .5s ease-in-out .25s;
}

#installed.disabled {
  opacity: .2;
  transition: opacity .5s ease-in-out .25s;
}

#installed.disabled:hover,
#installed.disabled:not(:hover) .entry.disabled:not(.not-applied) .style-name,
#installed.disabled:not(:hover) .entry.disabled:not(.not-applied) .actions,
#installed.disabled:not(:hover) .entry.not-applied .style-name,
#installed.disabled:not(:hover) .entry.not-applied .actions,
.entry.not-applied:hover .style-name,
.entry.not-applied:hover .actions,
.entry.disabled:not(.not-applied):hover .style-name,
.entry.disabled:not(.not-applied):hover .actions {
  opacity: 1;
}

.entry.not-applied .style-name .style-name-text,
.entry.disabled.not-applied .style-name  .style-name-text,
.entry.not-applied .style-name:hover .style-name-text,
.entry.disabled.not-applied .style-name:hover .style-name-text {
  color: hsl(0, 100%, 30%);
}

.entry.not-applied .svg-icon,
.not-applied input[type="checkbox"]:checked + .svg-icon.checked,
.entry.not-applied .style-name:hover input[type="checkbox"]:checked + .svg-icon.checked {
  fill: hsl(0, 100%, 30%);
}

.entry.not-applied .style-name:hover input[type="checkbox"]:checked + .svg-icon.checked,
.entry.not-applied a:hover .svg-icon.remove {
  fill: hsl(0, 100%, 50%);
}

.entry.not-applied a:hover .svg-icon.edit {
  fill: hsl(170, 70%, 38%);
}

.entry.not-applied input[type="checkbox"],
.entry.not-applied .style-name:hover input[type="checkbox"] {
  background-color: hsl(0, 0%, 100%);
  border-color: hsl(0, 100%, 30%);
}

.entry.not-applied .style-name:hover input[type="checkbox"],
.entry.disabled.not-applied .style-name:hover input[type="checkbox"] {
  background-color: hsl(0, 0%, 100%);
  border-color: hsl(0, 100%, 50%);
}

.regexp-problem-indicator {
  background-color: #d00;
  width: 14px;
  height: 14px;
  line-height: 15px;
  border-radius: 8px;
  margin-right: 6px;
  margin-left: 6px;
  text-align: center;
  color: white;
  font-weight: bold;
  box-sizing: border-box;
  cursor: pointer;
  font-size: 90%;
}

.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;
  z-index: 999999;
}

#regexp-explanation button {
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin: auto;
}

#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;
  width: 14px;
  height: 16px;
  fill: #666;
}

a:hover .svg-icon {
  fill: #000;
}

body.blocked #installed > *,
body.blocked .actions > .main-controls,
body.blocked .actions > .left-gutter {
  display: none;
}

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

.enable,
.disable {
  display: none;
}

/* 'New style' links */

#write-style {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
}

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

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

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

#match {
  overflow-wrap: break-word;
  flex-grow: 1;
  min-width: 100%;
}

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

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

/* "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;
}

/* actions/buttons and wrappers */

#popup-manage-button, #popup-shortcuts-button, #popup-options-button  {
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#popup-manage-wrapper, #popup-shortcuts-wrapper, #popup-options-wrapper {
  width: 32%;
}

.firefox #popup-options button {
  width: 48%;
}

#disable-all-wrapper, #write-style-wrapper, #find-styles-wrapper {
  width: 100%;
}
#disable-all-wrapper {
  padding: 12px 0;
}

#write-style-wrapper, #find-styles-wrapper {
  padding: 0 0 12px;
}

#disableAll-label {
  padding-left: 4px;
}


/* confirm */

#confirm {
  align-items: center;
  justify-content: center;
  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,
#confirm.lights-on > div {
  display: none;
}

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

#confirm > div {
  width: 80%;
  max-height: 80%;
  min-height: 6em;
  padding: 1em;
  background-color: #fff;
  display: flex;
  flex-direction: column;
  border: solid 2px rgba(0, 0, 0, 0.5);
}

#confirm > div > *:not(:last-child) {
  padding-bottom: .5em;
}

#confirm > div > div {
  display: flex;
  justify-content: center;
}

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

#confirm button {
  max-width: calc(50% - 9px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#confirm button:first-of-type {
  margin-right: 3px;
}

#confirm button:nth-of-type(2) {
  margin-left: 3px;
}

.unreachable .entry {
  opacity: .25;
}

.unreachable .blocked-info {
  border-bottom: 1px solid black;
}

.blocked-info {
  hyphens: auto;
}

.blocked-info label {
  padding: 5px 0;
  display: block;
  font-weight: bold;
}

.blocked-info p {
  padding: 1px 0 9px;
  display: block;
  font-size: 90%;
  margin: 0;
}

@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;
  }
}

/* Popup adjustments for common zoom levels */

@media (-webkit-min-device-pixel-ratio: 1.05) {
  #installed {
    max-height: 420px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.1) {
  #installed {
    max-height: 393px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.15) {
  #installed {
    max-height: 371px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.2) {
  #installed {
    max-height: 348px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.25) {
  #installed {
    max-height: 326px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.30) {
  #installed {
    max-height: 306px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.35) {
  #installed {
    max-height: 288px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.4) {
  #installed {
    max-height: 271px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.45) {
  #installed {
    max-height: 256px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.5) {
  #installed {
    max-height: 244px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.55) {
  #installed {
    max-height: 199px;
  }
}
@media (-webkit-min-device-pixel-ratio: 1.75) {
  #installed {
    max-height: 144px;
  }
}