/* Old-YouTube-inspired layouts. Each one is switched on by <html data-layout="...">
   (chosen in Settings > Appearance). "modern" is the normal Homereel look and has no
   rules here. These layouts only change structure and shape; every colour still comes
   from the variables in style.css, so the accent colour picked in Settings applies to
   all of them (and they follow light/dark mode). */

/* =====================================================================
   Shared by all the old layouts: flat surfaces, small corners
   ===================================================================== */
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) {
  --radius: 3px;
  --shadow-sm: 0 0 0 0 transparent;
  --shadow-md: 0 0 0 0 transparent;
  --shadow-lg: 0 0 0 0 transparent;
  --shadow-inset: 0 0 0 0 transparent;
  --sheen: none;
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .btn {
  border-radius: 3px; font-weight: 700;
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .btn::before { display: none; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .btn-primary {
  background: var(--accent); box-shadow: inset 0 -2px 0 rgba(0, 0, 0, .18);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .btn-soft {
  background: linear-gradient(180deg, var(--paper), var(--soft)); box-shadow: 0 0 0 1px var(--line);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .btn-soft[aria-pressed="true"] {
  background: var(--accent); color: var(--accent-ink);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .search {
  border-radius: 3px; box-shadow: 0 0 0 1px var(--line);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .search input { padding-left: 12px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .search button {
  border-radius: 0 3px 3px 0; background: var(--soft); box-shadow: -1px 0 0 var(--line);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .input { border-radius: 3px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .account-chip {
  border-radius: 3px; background: transparent;
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .icon-btn {
  border-radius: 3px; background: linear-gradient(180deg, var(--paper), var(--soft)); box-shadow: 0 0 0 1px var(--line);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .menu-dropdown {
  border-radius: 3px; box-shadow: 0 0 0 1px var(--line), 0 4px 10px rgba(0, 0, 0, .15);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .avatar { border-radius: 3px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .avatar.lg { border-radius: 4px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .tile-thumb { box-shadow: none; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .badge { border-radius: 2px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .player { box-shadow: none; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .tabs {
  gap: 0; padding: 0; border-radius: 0; background: none; box-shadow: none; border-bottom: 1px solid var(--line);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .tab {
  border-radius: 3px 3px 0 0; padding: 6px 14px; color: var(--accent); font-weight: 700; margin-bottom: -1px;
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .tab[aria-current="page"] {
  background: var(--paper); color: var(--ink); box-shadow: 0 0 0 1px var(--line); border-bottom: 1px solid var(--paper);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .desc { box-shadow: none; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .tile-meta h2 a:hover { color: var(--accent); }

/* =====================================================================
   Shared by the layouts whose navigation is a row of tabs under the header
   (2006, 2008, 2011): the sidebar turns into a tab bar.
   ===================================================================== */
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) .layout { display: block; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) .topbar {
  position: static; padding-left: var(--gutter); padding-right: var(--gutter);
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) .sidebar {
  position: static; width: auto; height: auto; flex-direction: row;
  align-items: flex-end; justify-content: flex-start;
  gap: 2px; padding: 6px var(--gutter) 0;
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) .side-btn {
  flex-direction: row; width: auto; padding: 7px 16px;
  border-radius: 3px 3px 0 0; font-size: .85rem; font-weight: 700;
}
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) .side-icon { display: none; }
@media (max-width: 900px) {
  html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) .sidebar {
    display: flex; overflow-x: auto; padding-left: 12px; padding-right: 12px;
  }
}

/* =====================================================================
   2005-2006  Original
   Plain white page, text tabs, a simple list of videos.
   ===================================================================== */
html[data-layout="2006"] {
  --gutter: max(16px, calc((100vw - 960px) / 2 + 32px));
  --font: Arial, Helvetica, sans-serif;
  font-size: 14px;
}
html[data-layout="2006"] body { background: var(--paper); }
html[data-layout="2006"] .topbar {
  background: var(--paper); box-shadow: none;
  border-bottom: 4px solid color-mix(in srgb, var(--accent) 35%, var(--paper));
}
html[data-layout="2006"] .brand { font-size: 1.5rem; letter-spacing: -0.04em; font-style: italic; }
html[data-layout="2006"] .sidebar {
  background: color-mix(in srgb, var(--accent) 12%, var(--paper));
  border-bottom: 1px solid var(--line);
}
html[data-layout="2006"] .side-btn { color: var(--accent); }
html[data-layout="2006"] .side-btn.active {
  background: var(--paper); color: var(--ink);
  box-shadow: 0 0 0 1px var(--line); border-bottom: 1px solid var(--paper); margin-bottom: -1px;
}
html[data-layout="2006"] .page:not(.narrow) { max-width: 960px; padding-top: 20px; }
html[data-layout="2006"] .page-head h1 { font-size: 1.15rem; }
html[data-layout="2006"] .grid { grid-template-columns: 1fr; gap: 10px; }
html[data-layout="2006"] .grid .tile {
  display: grid; grid-template-columns: 176px minmax(0, 1fr); gap: 14px; align-items: start;
  padding: 8px; border-bottom: 1px solid var(--line);
}
html[data-layout="2006"] .grid .tile .tile-meta { margin-top: 0; }
html[data-layout="2006"] .tile-meta h2 a { color: var(--accent); font-weight: 700; }
html[data-layout="2006"] .watch {
  max-width: 960px; grid-template-columns: minmax(0, 1fr) 300px; gap: 20px; padding-top: 20px;
}
html[data-layout="2006"] .watch-title { font-size: 1.2rem; }
html[data-layout="2006"] .desc { background: color-mix(in srgb, var(--accent) 7%, var(--paper)); border: 1px solid var(--line); }
html[data-layout="2006"] .watch-side > h2,
html[data-layout="2006"] .watch-side .side-head h2 {
  font-size: .95rem; padding: 4px 8px; background: color-mix(in srgb, var(--accent) 12%, var(--paper));
  border: 1px solid var(--line);
}
html[data-layout="2006"] .watch-side .side-head { margin-bottom: 10px; }
html[data-layout="2006"] .watch-side .side-head h2 { flex: 1; }

/* =====================================================================
   2008-2010  Blue boxes
   Light boxes, a four-across grid, and a watch page with a related box.
   ===================================================================== */
html[data-layout="2008"] {
  --gutter: max(16px, calc((100vw - 980px) / 2 + 32px));
  --font: Arial, Helvetica, sans-serif;
  --box-bg: color-mix(in srgb, var(--accent) 9%, var(--paper));
  --box-edge: color-mix(in srgb, var(--accent) 28%, var(--paper));
  font-size: 14px;
}
html[data-layout="2008"] body { background: var(--paper); }
html[data-layout="2008"] .topbar { background: var(--paper); box-shadow: none; padding-bottom: 8px; }
html[data-layout="2008"] .brand { font-size: 1.45rem; letter-spacing: -0.04em; }
html[data-layout="2008"] .sidebar {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 26%, var(--paper)), var(--box-bg));
  border-top: 1px solid var(--box-edge); border-bottom: 1px solid var(--box-edge);
}
html[data-layout="2008"] .side-btn { color: var(--accent); border-radius: 6px 6px 0 0; }
html[data-layout="2008"] .side-btn:hover { background: color-mix(in srgb, var(--paper) 45%, transparent); }
html[data-layout="2008"] .side-btn.active {
  background: var(--paper); color: var(--ink);
  box-shadow: 0 0 0 1px var(--box-edge); border-bottom: 1px solid var(--paper); margin-bottom: -1px;
}
html[data-layout="2008"] .page:not(.narrow) { max-width: 980px; padding-top: 18px; }
html[data-layout="2008"] .page-head {
  padding: 7px 12px; margin-bottom: 16px; border: 1px solid var(--box-edge); border-radius: 6px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 20%, var(--paper)), var(--box-bg));
}
html[data-layout="2008"] .page-head h1 { font-size: 1.05rem; }
html[data-layout="2008"] .page-head .tabs { border-bottom: 0; }
html[data-layout="2008"] .page-head .tab { padding: 3px 10px; border-radius: 3px; margin-bottom: 0; }
html[data-layout="2008"] .page-head .tab[aria-current="page"] { border-bottom: 0; background: var(--paper); box-shadow: 0 0 0 1px var(--box-edge); }
html[data-layout="2008"] .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px 14px; }
html[data-layout="2008"] .tile-thumb { border: 1px solid var(--line); }
html[data-layout="2008"] .tile-meta h2 { font-size: .9rem; }
html[data-layout="2008"] .tile-meta h2 a { color: var(--accent); font-weight: 700; }
html[data-layout="2008"] .tile-meta p { font-size: .8rem; }
html[data-layout="2008"] .watch {
  max-width: 980px; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; padding-top: 18px;
}
html[data-layout="2008"] .watch-title { font-size: 1.25rem; }
html[data-layout="2008"] .player { border: 1px solid var(--box-edge); }
html[data-layout="2008"] .desc,
html[data-layout="2008"] .watch-side {
  background: var(--box-bg); border: 1px solid var(--box-edge); border-radius: 6px; padding: 12px;
}
html[data-layout="2008"] .watch-side-col { gap: 16px; }
html[data-layout="2008"] .watch-side > h2,
html[data-layout="2008"] .watch-side .side-head h2 { font-size: 1rem; }
html[data-layout="2008"] .comments {
  padding: 4px 14px 10px; border: 1px solid var(--box-edge); border-radius: 6px; background: var(--box-bg);
}
html[data-layout="2008"] .comment { border-top-color: var(--box-edge); }
html[data-layout="2008"] .comments h2 { padding-top: 10px; }

/* =====================================================================
   2011-2012  Cosmic Panda
   A dark top bar on a gray page, with the content in white panels.
   ===================================================================== */
html[data-layout="2011"] {
  --gutter: max(16px, calc((100vw - 1120px) / 2));
  --font: Arial, Helvetica, sans-serif;
  --panda-bg: color-mix(in srgb, var(--ink) 9%, var(--paper));
  font-size: 14.5px;
}
html[data-layout="2011"] body { background: var(--panda-bg); }
html[data-layout="2011"] .topbar {
  background: linear-gradient(180deg, #3b3b3b, #1d1d1d); color: #e8e8e8;
  border-bottom: 1px solid #000; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12);
  padding-top: 8px; padding-bottom: 8px;
}
html[data-layout="2011"] .brand { color: #fff; }
html[data-layout="2011"] .search { background: #fff; box-shadow: inset 0 1px 2px rgba(0, 0, 0, .3), 0 0 0 1px #000; }
html[data-layout="2011"] .search input { color: #1d1d1d; }
html[data-layout="2011"] .search button { background: linear-gradient(180deg, #f6f6f6, #dcdcdc); color: #444; box-shadow: -1px 0 0 #999; }
html[data-layout="2011"] .account-chip { color: #eee; }
html[data-layout="2011"] .icon-btn,
html[data-layout="2011"] .topbar .btn-soft {
  background: linear-gradient(180deg, #4d4d4d, #2c2c2c); color: #eee; box-shadow: 0 0 0 1px #000, inset 0 1px 0 rgba(255, 255, 255, .15);
}
html[data-layout="2011"] .icon-btn { width: 34px; height: 34px; }
html[data-layout="2011"] .menu-dropdown { background: var(--paper); }
html[data-layout="2011"] .sidebar {
  background: linear-gradient(180deg, var(--paper), color-mix(in srgb, var(--ink) 6%, var(--paper)));
  border-bottom: 1px solid var(--line); padding-top: 0;
}
html[data-layout="2011"] .side-btn {
  color: var(--slate); border-radius: 0; padding: 11px 16px;
  border-bottom: 3px solid transparent;
}
html[data-layout="2011"] .side-btn:hover { color: var(--ink); }
html[data-layout="2011"] .side-btn.active { color: var(--ink); border-bottom-color: var(--accent); }
html[data-layout="2011"] .page:not(.narrow),
html[data-layout="2011"] .watch {
  max-width: 1120px; margin: 16px auto 32px; background: var(--paper);
  border: 1px solid var(--line); border-radius: 3px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .08);
}
html[data-layout="2011"] .page:not(.narrow) { padding: 18px 24px 40px; }
html[data-layout="2011"] .watch { grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; padding: 18px 20px 40px; }
html[data-layout="2011"] .channel-page .page:not(.narrow) { border: 0; box-shadow: none; background: transparent; }
html[data-layout="2011"] .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px 16px; }
html[data-layout="2011"] .tile-thumb { box-shadow: 0 1px 3px rgba(0, 0, 0, .35); }
html[data-layout="2011"] .tile-meta h2 { font-size: .9rem; font-weight: 700; }
html[data-layout="2011"] .tile-meta p { font-size: .8rem; }
html[data-layout="2011"] .watch-title { font-size: 1.3rem; }
html[data-layout="2011"] .player { background: #000; }
html[data-layout="2011"] .desc { background: color-mix(in srgb, var(--ink) 4%, var(--paper)); border: 1px solid var(--line); }

/* =====================================================================
   2013-2015  The Guide
   Flat and white, with the wide Guide list down the left.
   ===================================================================== */
html[data-layout="2013"] {
  --font: Roboto, Arial, "Segoe UI", sans-serif;
  --guide-bg: color-mix(in srgb, var(--ink) 5%, var(--paper));
  font-size: 14.5px;
}
html[data-layout="2013"] body { background: var(--guide-bg); }
html[data-layout="2013"] .topbar {
  padding: 8px 20px; background: var(--paper);
  box-shadow: 0 1px 0 var(--line), 0 1px 3px rgba(0, 0, 0, .06);
}
html[data-layout="2013"] .sidebar {
  width: 196px; padding: 10px 0; gap: 0; align-items: stretch;
  top: 57px; height: calc(100vh - 57px);
  background: var(--paper); border-right: 1px solid var(--line);
}
html[data-layout="2013"] .side-btn {
  flex-direction: row; gap: 14px; padding: 9px 18px; border-radius: 0;
  font-size: .875rem; font-weight: 500; color: var(--ink);
}
html[data-layout="2013"] .side-icon { width: 24px; height: 24px; background: none; box-shadow: none; color: var(--slate); }
html[data-layout="2013"] .side-btn:hover { background: var(--soft); }
html[data-layout="2013"] .side-btn:hover .side-icon { box-shadow: none; }
html[data-layout="2013"] .side-btn.active { background: var(--soft); font-weight: 700; box-shadow: inset 3px 0 0 var(--accent); }
html[data-layout="2013"] .side-btn.active .side-icon { color: var(--accent); box-shadow: none; }
html[data-layout="2013"] .page:not(.narrow) { max-width: 1500px; padding-top: 20px; }
html[data-layout="2013"] .page-head { margin-bottom: 18px; }
html[data-layout="2013"] .page-head h1 { font-size: 1.15rem; font-weight: 500; }
html[data-layout="2013"] .grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr)); gap: 22px 14px; }
html[data-layout="2013"] .tile-meta h2 { font-size: .875rem; font-weight: 500; }
html[data-layout="2013"] .tile-meta p { font-size: .8rem; }
html[data-layout="2013"] .watch { max-width: 1400px; grid-template-columns: minmax(0, 1fr) 402px; gap: 24px; }
html[data-layout="2013"] .watch-title { font-size: 1.3rem; font-weight: 500; }
html[data-layout="2013"] .desc { background: var(--paper); border: 1px solid var(--line); }
html[data-layout="2013"] .comments { padding: 16px 20px; background: var(--paper); border: 1px solid var(--line); border-radius: 2px; }
html[data-layout="2013"] .watch-side > h2,
html[data-layout="2013"] .watch-side .side-head h2 { font-weight: 500; }

/* Phones and small windows: give every layout the same simple single column. */
@media (max-width: 1000px) {
  html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .watch {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 760px) {
  html[data-layout="2008"] .grid,
  html[data-layout="2011"] .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  html[data-layout="2006"] .grid .tile { grid-template-columns: 130px minmax(0, 1fr); }
}

/* "Videos" tab: where the sticky selection bar sits under each layout's header */
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"]) #my-videos { --mv-top: 8px; }
html[data-layout="2013"] #my-videos { --mv-top: 65px; }
html[data-layout="2008"] .mv-row,
html[data-layout="2008"] .mv-toolbar { background: color-mix(in srgb, var(--accent) 6%, var(--paper)); }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .mv-row { box-shadow: 0 0 0 1px var(--line); }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .mv-row.is-selected { box-shadow: 0 0 0 2px var(--accent); }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .mv-toolbar { box-shadow: 0 0 0 1px var(--line); }

/* Playlist popup in the flat layouts */
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .modal-box { border-radius: 4px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .pl-check { border-radius: 3px; }
html:is([data-layout="2006"], [data-layout="2008"], [data-layout="2011"], [data-layout="2013"]) .pl-plus { border-radius: 3px; }