youtube-full-theater.user.css

/* ==UserStyle==
@name           YouTube Full Theater
@namespace      github.com/ibillingsley
@version        1.1.0
@description    Full screen theatre mode for YouTube
@author         Isaiah Billingsley
@homepageURL    https://github.com/ibillingsley/userstyles
@license        0BSD
==/UserStyle== */

@-moz-document url-prefix("https://www.youtube.com/watch") {

  html, [light] {
    /* Add transparency to top bar, sidebar (#contentContainer.tp-yt-app-drawer) background */
    --yt-spec-base-background: #fffc;
    /* Add transparency to menu background */
    --yt-spec-menu-background: var(--yt-spec-base-background);
    /* Add transparency to search results background */
    --yt-spec-raised-background: var(--yt-spec-base-background);
    --ytd-searchbox-background: hsl( 0 0 100% / 50% );
  }

  html[dark], [dark] {
    /* Add transparency to top bar, sidebar (#contentContainer.tp-yt-app-drawer) background */
    --yt-spec-base-background: #0f0f0fcc;
    /* Add transparency to menu background */
    --yt-spec-menu-background: #282828cc;
    --yt-spec-menu-background: var(--yt-spec-base-background);
    /* Add transparency to search results background */
    --yt-spec-raised-background: #212121cc;
    --yt-spec-raised-background: var(--yt-spec-base-background);
    --ytd-searchbox-background: hsl( 0 0 7% / 50% );
  }

  #guide-content.ytd-app,
  ytd-simple-menu-header-renderer {
    background: unset;
  }

  /* Overlay when sidebar is open */
  #scrim.tp-yt-app-drawer {
    /* Fade video less */
    --app-drawer-scrim-background: rgb(0 0 0 / 20%);
  }

  /* Player occupies full screen height */
  #player.skeleton.theater,
  .ytd-page-manager[theater]:not([fullscreen]) #player-wide-container,
  .ytd-page-manager[theater]:not([fullscreen]) #player-theater-container,
  .ytd-page-manager[theater]:not([fullscreen]) #full-bleed-container {
    max-height: 100vh;
    min-height: 100vh;
  }


  /* Top bar hiding with fade-out and visibility */
  #masthead[fullscreen],
  #masthead[theater] {
    --fadeout-duration: 700ms;
    --fadeout-delay: 500ms;
    /* Fade in-out and enable/disable visibility (clickable). */
    transition:
      opacity var(--fadeout-duration) ease-out,
      visibility var(--fadeout-duration);
    transition-delay:
      var(--fadeout-delay),
      var(--fadeout-delay);
  }

  /* Theater mode top bar is hidden by default */
  #masthead[theater]:not([fullscreen]) {
    opacity: 0;
  }
  /* Show top bar when dropdown is open */
  ytd-app:has( ytd-popup-container tp-yt-iron-dropdown:not([style~="display:"]) ),
  /* Show top bar when title is hovered or focused */
  #content:has( .ytp-chrome-top:is(:hover, :focus-within) ),
  /* Show top bar when hovered or focused */
  #masthead-container:is(:hover, :focus-within) {
  /* #masthead[theater]:not([fullscreen]):is(:focus-within, :hover) { */
    #masthead[theater]:not([fullscreen]) {
      opacity: 1;
      /* Fade in faster */
      transition-duration: 100ms, 100ms;
      transition-delay: 0s, 0s;
    }
  }

  /* Fullscreen top bar is hidden when scrolled to top and not focused */
  ytd-app[masthead-hidden] #masthead[fullscreen]:not(:focus-within) {
    /* Fade out */
    opacity: 0;
    /* Make top bar unclickable. Delayed until after fade out is finished. */
    visibility: hidden;
  }
  /* Fullscreen top bar fades out instead of sliding off-screen */
  ytd-app[masthead-hidden] #masthead-container.ytd-app {
    /* Disable sliding off-screen */
    transform: unset;
    opacity: unset;
    transition: unset;
  }

  /* Top bar background */
  #masthead #background {
    /* Smooth out weird transparency jump when scrolled to top */
    transition: opacity 700ms ease-out;
    /* Blur the top bar's bottom edge */
    box-shadow: 0px -6px 8px 8px var(--yt-spec-base-background);
  }
  /* Add transparency to the searchbox when not focused */
  #container.ytd-searchbox:not(:focus-within) {
    opacity: 80%;
  }
  /* Hide empty iframe showing a scrollbar when search is focused */
  body:has( #container.ytd-searchbox:focus-within ) iframe.sbdd_c {
    display: none;
  }


  /** Top bar responsive CSS **/

  /* Header */
  #masthead #background {
    height: 100%;
  }
  /* Logo */
  ytd-logo.ytd-topbar-logo-renderer {
    display: block;
  }
  yt-icon.ytd-logo {
    padding-block: 0;
    height: 100%;
  }
  #country-code.ytd-topbar-logo-renderer {
    margin-top: -6px;
  }
  #skip-navigation.ytd-masthead:focus-within {
    top: calc( 50% - 18px );
  }
  /* Search */
  #center.ytd-masthead {
    /* height: 40px; */
    height: var(--height--search);
  }
  ytd-searchbox.ytd-masthead,
  #search-form.ytd-searchbox,
  #voice-search-button {
    height: 100%;
  }
  /* Magnifying glass icon */
  #search-icon-legacy.ytd-searchbox {
    height: 100%;
    width: unset;
    aspect-ratio: 64 / 40;
  }
  /* Mic button */
  ytd-button-renderer.ytd-masthead,
  ytd-button-renderer.ytd-masthead > yt-button-shape {
    height: 100%;
  }
  .yt-spec-button-shape-next--overlay.yt-spec-button-shape-next--text {
    height: 100%;
    width: unset;
    aspect-ratio: 1;
  }

  /* Top bar is thinner */
  #container.ytd-masthead {
    height: 44px;
    /* --height--search: calc( 100% - 2 * 8px ); */
    --height--search: 34px;
  }
  /* Top bar is thicker in basic mode */
  #masthead:not( [theater], [fullscreen] ) {
    /* Header */
    #container.ytd-masthead {
    }
  }

  /* Search suggestions popup was off-screen */
  .gstl_50.sbdd_a {
    /* Fix miscalculated position when scrolled down */
    top: 52px !important;

    /* Theater mode has thinner searchbox */
    body:has( #masthead:is( [theater], [fullscreen] ) ) & {
      top: 40px !important;
    }
  }


  /* Replace player top margin with #masthead-container */
  #masthead-container.ytd-app {
    /* Occupy the necessary space for #masthead in default mode */
    position: sticky;
  }
  /* Collapse #masthead-container in fullscreen and theater mode: there's no space above player */
  #masthead[fullscreen],
  #masthead[theater] {
    position: fixed;
  }
  /* Remove top margin */
  #page-manager.ytd-app {
    margin-top: 0;
  }


  /* Move buttons in top-right corner below the top bar in theater mode */
  .ytd-page-manager[theater]:not([fullscreen]) .ytp-overflow-panel-close,
  .ytd-page-manager[theater]:not([fullscreen]) .ytp-chrome-top {
    padding-top: 50px; /* masthead is 56px, buttons have 6px padding */
    height: unset;
  }
  /* Move endscreen video grid below the title */
  .ytd-page-manager[theater]:not([fullscreen]) .ytp-endscreen-content {
    top: calc(50% + 50px);
  }



  /** Show video title and buttons in theater mode, hide when playing video - also in fullscreen **/

  /* Video title gradient shadow is only as high as the title instead of darkening the top 1/3 of the video */
  .ytp-chrome-top {
    /* background-image: linear-gradient(to top, rgb(0 0 0 / 0%), rgb(0 0 0 / 40%) 40px, rgb(0 0 0 / 70%) 100%); */
    /* background-image: linear-gradient(to top, rgb(0 0 0 / 0%), rgb(0 0 0 / 25%) 40px, rgb(0 0 0 / 50%) 100%); */
    padding-bottom: 30px;
    left: 0 !important;
    width: 100% !important;
  }
  .ytp-chrome-top > * {
    margin-inline: 12px;
  }
  .ytp-gradient-top {
    display: none;
  }

  /* Vertically align title and buttons */
  .ytp-chrome-top {
    align-items: center;
  }
  /* Vertically align title and buttons */
  .ytp-chrome-top > * {
    /* Substitute for button padding-top: 6px + button height was: 36px, changed to: 24px, (36-24px)/2 = 6px */
    margin-top: 12px;
  }
  .ytp-big-mode .ytp-chrome-top > * {
    /* Substitute for .ytp-big-mode .ytp-title-text padding-top: 18px */
    margin-top: 18px;
  }
  /* Remove empty space above-below icons, height similar to .ytp-title-text */
  .ytp-chrome-top-buttons {
    height: 24px;
    display: flex;
    align-items: center;
  }
  .ytp-chrome-top .ytp-button {
    padding-top: unset;
  }

  /* Video title text shadow for legibility on light background */
  .ytp-title,
  .ytp-title-text {
    overflow: visible;
  }
  .ytp-title-text.ytp-title-text {
    /* Override .ytp-big-mode .ytp-title-text with precendence */
    color: white;
    text-shadow: 2px 2px 4px black;
    padding: 0px 10px;
    display: inline-block;
  }
  .ytp-title-link {
    display: inline;
  }
  /* Buttons also have shadow */
  .ytp-chrome-top-buttons .ytp-button {
    filter: drop-shadow(1px 1px 2px #000a);
  }
  /* Video title and buttons highlighted with background and shadow */
  /* .ytp-chrome-top-buttons, */
  .ytp-title-text {
    --bgcolor: rgb(0 0 0 / 20%);
    --size--blur: 15px;
    box-shadow: 0 0 var(--size--blur) var(--size--blur) var(--bgcolor);
    background-color: var(--bgcolor);
    border-radius: var(--size--blur);
  }
  /* Watch later button's positioning was inconsistent with other buttons */
  .html5-video-player:not(.ytp-big-mode) .ytp-chrome-top .ytp-watch-later-button {
    min-width: unset;
  }

  /* Video title and buttons fade in-out */
  .ytp-chrome-top {
    /* transition: opacity 100ms; */
    /* transition: opacity 100ms cubic-bezier(.4,0,1,1); */ /* original */
    /* transition-timing-function: ease; */
    /* transition-timing-function: ease-in-out; */
  }
  /* Delay fade-in for a few seconds after paused, so a short pause won't create distraction. No delay when hovered. */
  .paused-mode .ytp-chrome-top:not(:hover) {
    transition-delay: 1s;
    transition-duration: 500ms;
  }
  /* Short transition when hovered */
  #movie_player.ytp-chrome-top:hover {
    transition-delay: 0s;
    /* transition-duration: 100ms; */
  }

  /* Hide video title and buttons when playing and not hovered or focused */
  /* [full-bleed-player] === :is([theater], [fullscreen]) */
  .ytd-page-manager[full-bleed-player] .playing-mode:not(.unstarted-mode) .ytp-chrome-top:not(:hover):not(:focus-within) {
    opacity: 0;
    /* No fade-out delay when hiding */
    transition-delay: 0s;
  }
  /* Show video title and buttons when search is focused */
  #masthead-container:is(:hover, :focus-within) ~ #page-manager .ytp-chrome-top {
    opacity: 1;
  }

  /* Disable hiding of player top buttons and disable fade-out on inactivity */
  /* .ytp-autohide: playing and mouse didn't move for 3 seconds) */
  #movie_player {
    .ytp-title-channel,
    .ytp-title,
    .ytp-chrome-top .ytp-button {
      opacity: unset;
      -webkit-transition: unset;
      transition: unset;
    }
  }

  /* Show title in theater mode: disable .ytp-hide-info-bar (active when not fullscreen) */
  /* and .ytp-autohide (active when paused or for 3 seconds after mouse activity). */
  /* Note: .ytp-autohide-active is added (increases precedence) for < 1s while fading out. */
  .ytp-cards-button,
  .ytp-playlist-menu-button,
  .ytp-back-button,
  /* .ytp-title-channel, */
  .ytp-title {
    /* #movie_player for precedence */
    .ytd-page-manager[full-bleed-player] #movie_player & {
      display: unset;
    }
  }
  /* Buttons will be visible in default and theater modes too */
  .ytp-watch-later-button,
  /* .ytp-cards-button:not([title=null]), */
  .ytp-copylink-button-visible,
  .ytp-overflow-button-visible {
    /* Hidden with style attribute at the end of the video, therefore the !important */
    display: unset !important;
  }

  /* Hide share and search button (visible on fullscreen). Search button seems to be unused. */
  .ytp-search-button,
  .ytp-share-button-visible {
    display: none !important;
  }

  /* Disable hiding of video title and buttons in default and theater mode */
  .ytp-hide-info-bar .ytp-chrome-top {
    /* Disable .ytp-hide-info-bar (active when not fullscreen) */
    height: unset;
  }

}