/* Copyright 2012 The Chromium Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

html,
body {
  height: 100%;
  overflow: hidden;
}

html {
  --ease-in-out: cubic-bezier(0.4, 0.0, 0.2, 1);
  --shadow-color: rgba(0, 0, 0, 0.1);

  --google-blue-300-rgb: 138, 180, 248;
  --google-blue-300: rgb(var(--google-blue-300-rgb));
  --google-blue-400: rgb(102, 157, 246);
  --google-blue-500-rgb: 66, 133, 244;
  --google-blue-500: rgb(var(--google-blue-500-rgb));
  --google-blue-600-rgb: 26, 115, 232;
  --google-blue-600: rgb(var(--google-blue-600-rgb));
  --google-blue-700: rgb(25, 103, 210);
  --google-grey-100: rgb(241, 243, 244);
  --google-grey-200-rgb: 232, 234, 237;
  --google-grey-200: rgb(var(--google-grey-200-rgb));
  --google-grey-300: rgb(218, 220, 224);
  --google-grey-500: rgb(154, 160, 166);
  --google-grey-700: rgb(95, 99, 104);
  --google-grey-900-rgb: 32, 33, 36;
  --google-grey-900: rgb(var(--google-grey-900-rgb));
  /* --google-grey-900 + 4% white blended together. */
  --google-grey-900-white-4-percent: #292a2d;
  --google-red-300: rgb(242, 139, 130);
  --google-red-700: rgb(197, 34, 31);

  --interactive-color: var(--google-blue-600);
  --primary-color: var(--google-grey-900);
  --secondary-color: var(--google-grey-700);
  --warning-color: var(--google-red-700);

  --focus-shadow-color: rgba(var(--google-blue-600-rgb), 0.4);
  --input-background: var(--google-grey-100);
  --link-color: var(--google-blue-700);
  --separator-color: rgba(0, 0, 0, .06);
  --toolbar-color: white;

  background: white;
}

@media (prefers-color-scheme: dark) {
  html {
    --interactive-color: var(--google-blue-300);
    --primary-color: var(--google-grey-200);
    --secondary-color: var(--google-grey-500);
    --warning-color: var(--google-red-300);

    --focus-shadow-color: rgba(var(--google-blue-300-rgb), 0.4);
    --input-background: rgba(0, 0, 0, .3);
    --link-color: var(--google-blue-300);
    --separator-color: rgba(255, 255, 255, .1);
    --toolbar-color: var(--google-grey-900-white-4-percent);

    background: var(--google-grey-900);
  }
}

body {
  color: var(--primary-color);
  display: flex;
  flex-direction: column;
  font-size: 0.8125em;
  margin: 0;
}

a {
  color: var(--link-color);
  font-size: .8125rem;
}

h1 {
  color: var(--primary-color);
  font-size: 1.4625rem;
  font-weight: 400;
  margin-top: 0;
  padding: 0;
}

button {
  cursor: pointer;
  font-weight: 500;
}

#body-container {
  flex: 1;
  /* Force the vertical scrollbar to always be displayed, to avoid UI jumps. */
  overflow-y: scroll;
}

#flagsTemplate {
  --side-padding: 20px;
  box-sizing: border-box;
  padding: 1rem var(--side-padding) 8px;
  margin: 0 auto;
  max-width: calc(700px + 2 * var(--side-padding));
  width: 100%;
}

:focus-visible {
  box-shadow: 0 0 0 2px var(--focus-shadow-color);
  outline: none;
}

@media (forced-colors: active) {
  :focus-visible {
    /* Outline is needed for Windows HCM. Color of outline does not matter; it
     * is overridden by the OS. */
    box-shadow: none;
    outline: 2px solid transparent;
  }
}

@media (prefers-color-scheme: dark) {
  #flagsTemplate {
    background: rgba(255, 255, 255, .04);
  }
}

.flex {
  align-self: center;
  flex: 1 1 auto;
}

.flex-container {
  display: flex;
  padding: 8px 1em;
}

#flagsTemplate > .flex-container:first-child {
  padding: 0;
}

#header {
  background: var(--toolbar-color);
  box-shadow: 0 2px 2px 0 var(--shadow-color);
  box-sizing: border-box;
}

@media (prefers-color-scheme: dark) {
  #header {
    border-bottom: 1px solid var(--separator-color);
  }
}

#header .flex-container {
  box-sizing: border-box;
  margin: 0 auto;
  max-width: 700px;
}

#header .flex-container .flex:first-child {
  text-align: left; /* csschecker-disable-line left-right */
}

#header .flex-container .flex:last-child {
  text-align: right; /* csschecker-disable-line left-right */
}

.hidden {
  display: none;
}

.search-container {
  margin-inline-end: 8px;
  position: relative;
}

#search {
  background: var(--input-background) url(chrome://resources/images/icon_search.svg) no-repeat 8px 50%;
  border: 1px solid transparent;
  border-radius: 3px;
  box-sizing: border-box;
  color: inherit;
  font-size: .8125rem;
  padding: 12px 36px;
  width: 100%;
}

#search::placeholder {
  color: rgba(var(--google-grey-900-rgb), .71);
}

@media (prefers-color-scheme: dark) {
  #search {
    background-image: url(chrome://resources/images/dark/icon_search.svg);
  }

  #search::placeholder {
    color: rgba(var(--google-grey-200-rgb), .51);
  }
}

.clear-search {
  -webkit-mask-image: url(chrome://resources/images/icon_cancel.svg);
  -webkit-mask-size: 20px;
  background: var(--secondary-color);
  border: 0;
  display: none;
  height: 20px;
  opacity: 0.5;
  position: absolute;
  right: 8px;
  top: calc(50% - 10px);
  width: 20px;
}

.clear-search:focus {
  opacity: 1;
  outline: 0;
}

.searching .clear-search {
  display: inline-block;
}

.searching .blurb-container,
.searching #promos {
  display: none;
}

.blurb-container {
  color: var(--primary-color);
  font-size: .875rem;
  line-height: 1.4;
  margin-bottom: 1rem;
}

.blurb-warning {
  color: var(--warning-color);
  text-transform: uppercase;
}

.screen-reader-only {
  clip: rect(0,0,0,0);
  display: inline-block;
  position: fixed;
}

#promos {
  color: var(--secondary-color);
  font-size: .875rem;
}

button:not(.primary) {
  background: none;
  border: 1px solid var(--google-grey-300);
  border-radius: 3px;
  color: var(--google-blue-600);
  font-size: .8125rem;
  padding: 8px 12px;
}

@media (prefers-color-scheme: dark) {
  button:not(.primary) {
    border-color: var(--google-grey-700);
    color: var(--google-blue-300);
  }
}

button:not(.primary):hover {
  background: rgba(var(--google-blue-500-rgb), .04);
}

@media (prefers-color-scheme: dark) {
  button:not(.primary):hover {
    background: rgba(var(--google-blue-300-rgb), .08);
  }
}

.tabs {
  display: flex;
  width: 100%;
}

.tab {
  color: var(--secondary-color);
  cursor: pointer;
  display: block;
  flex: 1;
  font-size: 1rem;
  font-weight: normal;
  padding: 14px 21px;
  position: relative;
  text-align: center;
  text-decoration: none;
  transition: color 200ms var(--ease-in-out);
  user-select: none;
  width: 50%;
  z-index: 1;
}

.tab::before {
  background: currentColor;
  bottom: 0;
  content: '';
  display: block;
  height: 1px;
  left: 0;
  position: absolute;
  transition: height 200ms var(--ease-in-out);
  width: 100%;
}

.tabs .tab.selected,
.tabs .tab.selected:focus {
  color: var(--interactive-color);
}

.tabs .tab.selected::before,
.tabs .tab.selected:focus::before {
  height: 2px;
}

html:not(.focus-outline-visible) .tab:focus {
  outline: 0;
}

.tab-content {
  display: none;
  line-height: 25px;
  /* Bottom padding should be greater than evaluated height of needs-restart */
  padding-bottom: 100px;
  position: relative;
}

.tab-content.selected,
.tab-content.selected .template {
  display: block;
}

/* Restart tray. */
#needs-restart {
  background: var(--toolbar-color);
  bottom: 0;
  box-shadow: 0 -2px 2px 0 var(--shadow-color);
  box-sizing: border-box;
  left: 0;
  opacity: 0;
  padding: 16px;
  position: fixed;
  transform: translateY(300px);
  transition: all 225ms var(--ease-in-out);
  width: 100%;
  z-index: 10;
}

#needs-restart .flex:last-child {
  text-align: right; /* csschecker-disable-line left-right */
}

#needs-restart.show {
  opacity: 1;
  transform: translate(0);
}

.no-match {
  margin-top: 75px;
}

.restart-notice {
  font-size: .9375rem;
  line-height: 1.4;
}

button.primary {
  background: var(--link-color);
  border: 0;
  border-radius: 3px;
  color: white;
  font-size: .875rem;
  padding: 14px 38px;
}

@media (prefers-color-scheme: dark) {
  button.primary {
    color: var(--google-grey-900);
  }
}

button.primary:-webkit-any(:active, :hover) {
  background: var(--google-blue-600);
}

#version {
  color: var(--secondary-color);
  text-align: right; /* csschecker-disable-line left-right */
}

#os-flags-link-container {
  background-image: url(chrome://resources/images/os_flags_app_icon.svg);
}

@media (max-width: 360px) {
  #experiment-reset-all {
    font-size: .65rem;
    padding: 2px 8px;
  }

  #flagsTemplate > .flex-container {
    flex-direction: column;
  }

  #version {
    text-align: initial;
  }

  button.primary {
    padding: 8px;
  }

  #search {
    padding: 8px 36px;
  }
}

@media (max-width: 480px) {
  #flagsTemplate > .flex-container:first-child:not('.version') {
    flex-direction: column;
    text-align: left; /* csschecker-disable-line left-right */
  }

  #flagsTemplate > .flex-container:first-child .flex {
    width: 100%;
  }

  #needs-restart {
    padding: 8px 12px;
  }

  button.primary {
    padding: 8px 16px;
  }

  .restart-notice {
    font-size: .8125rem;
    padding: 4px;
  }

  .searching flags-experiment::part(body) {
    overflow: visible;
    white-space: normal;
  }
}

@media (max-width: 732px) {
  #version,
  .blurb-warning {
    display: block;
    margin-bottom: 1rem;
  }
}

@media (max-height: 400px) {
  #header {
    position: relative;
  }

  #flagsTemplate {
    padding-top: 1.5rem;
  }
}