/* Mobile control vocabulary. Desktop presentation retains its existing styles. */
@media(max-width:899px){
  [hidden]{display:none!important}
  :root{--mc-line:#c8cbc3;--mc-surface:#e9ebe5;--mc-ink:#171b17;--mc-selected:#171b17;--mc-selected-ink:#f2f3ec;--mc-muted:#515a50}
  #intelligence,.reactive-intelligence,.experience.is-dark,.signal-editorial,#cinema,#reading-cinema,body:has(.reading-header){--mc-line:#454e43;--mc-surface:#1c231d;--mc-ink:#f2f3ec;--mc-selected:#f2f3ec;--mc-selected-ink:#111711;--mc-muted:#bec6b9}
  button,a,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
  button:not([hidden]),summary{min-height:48px}
  :is(button,a,summary):focus-visible{outline:2px solid currentColor;outline-offset:4px}
  :is(button,a,summary){transition:background-color .16s ease,border-color .16s ease,color .16s ease,opacity .16s ease}
  button:active,a:active,summary:active{opacity:.72}
  button:disabled{opacity:.4;cursor:default}
  .control-glyph{display:inline-flex!important;align-items:center;justify-content:center;flex:none!important;width:22px;height:22px;font-size:0!important;line-height:0!important;vertical-align:middle}
  .control-glyph::before{content:'';display:block;width:20px;height:20px;background:currentColor;mask:var(--mc-icon) center/contain no-repeat;-webkit-mask:var(--mc-icon) center/contain no-repeat}
  .control-glyph--up-right{--mc-icon:url('/signal/assets/icons/arrow-up-right.svg')}
  .control-glyph--left{--mc-icon:url('/signal/assets/icons/arrow-left.svg')}
  .control-glyph--down{--mc-icon:url('/signal/assets/icons/arrow-down.svg')}
  .control-glyph--plus{--mc-icon:url('/signal/assets/icons/arrow-right.svg')}
  .control-glyph--close{--mc-icon:url('/signal/assets/icons/close.svg')}
  a[download] .control-glyph{--mc-icon:url('/signal/assets/icons/download.svg')}
  .se-read .control-glyph{--mc-icon:url('/signal/assets/icons/arrow-right.svg')}
  .se-read[href^='#'] .control-glyph{--mc-icon:url('/signal/assets/icons/arrow-down.svg')}
  :is(.text-line,.archive-row,.contribution,.se-archive-row)>span.control-glyph{width:36px;height:36px;border:1px solid var(--mc-line);border-radius:50%;color:inherit}
  :is(.text-line,.archive-row,.contribution,.se-archive-row){gap:16px;min-height:64px}
  :is(.text-line,.archive-row,.contribution,.se-archive-row):active{background:var(--mc-surface)}

  /* Compact utility controls retain visible text alongside the icons. */
  #open-menu,.dialog-top>[data-close],.cinema-top>[data-close],.reading-close,#sheet-back,.reading-header nav a{
    display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:10px 15px;border:1px solid var(--mc-line);border-radius:999px;background:transparent;color:inherit;font:500 14px/1 Such,Arial,sans-serif;text-decoration:none;white-space:nowrap
  }
  #sheet-back[hidden]{display:none}
  .reading-header nav a:last-child{display:none}
  .reading-close>span{display:none}
  :is(.dialog-top>[data-close],.cinema-top>[data-close],.reading-close)::after,#sheet-back::before{content:'';display:block;flex:none;width:18px;height:18px;background:currentColor;mask:var(--mc-icon) center/contain no-repeat;-webkit-mask:var(--mc-icon) center/contain no-repeat}
  :is(.dialog-top>[data-close],.cinema-top>[data-close],.reading-close){--mc-icon:url('/signal/assets/icons/close.svg')}
  #sheet-back{--mc-icon:url('/signal/assets/icons/arrow-left.svg')}
  #open-menu .menu-lines{display:block;width:20px;height:20px;border:0;background:currentColor;mask:url('/signal/assets/icons/menu.svg') center/contain no-repeat;-webkit-mask:url('/signal/assets/icons/menu.svg') center/contain no-repeat}
  .menu-nav button{gap:16px;min-height:76px}
  .menu-nav button::after{content:'';margin-left:auto;flex:none;width:22px;height:22px;background:currentColor;mask:url('/signal/assets/icons/arrow-right.svg') center/contain no-repeat;-webkit-mask:url('/signal/assets/icons/arrow-right.svg') center/contain no-repeat}
  .menu-bottom :is(a,button){min-height:48px}
  .chapter-navigation{grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;padding:5px 0;border:0}
  .chapter-navigation a,.chapter-navigation a:nth-child(4){display:flex;justify-content:center;align-items:center;min-height:48px;padding:10px 6px;border-radius:999px;border:0;font-size:13px;color:var(--mc-muted)}
  .chapter-navigation a[aria-current]{background:var(--mc-selected);color:var(--mc-selected-ink)}
  .chapter-navigation a span{padding-block:0;align-self:center}.chapter-navigation a::after,.chapter-navigation a[aria-current] span::after{display:none}

  /* Film entry and playback controls. */
  .signal-editorial .se-actions{gap:12px 16px}
  .signal-editorial .se-watch{background:#f2f3ec;color:#111711;border-radius:999px;padding:10px 22px 10px 10px;min-height:64px;gap:12px}
  .signal-editorial .se-watch-disc{width:44px;height:44px;border:0;background:#111711;color:#f2f3ec}
  .signal-editorial .se-watch small{color:#50594d}
  .signal-editorial .se-watch-disc::after{width:20px;height:20px;margin:0;border:0;background:currentColor;mask:url('/signal/assets/icons/play.svg') center/contain no-repeat;-webkit-mask:url('/signal/assets/icons/play.svg') center/contain no-repeat}
  .signal-editorial .se-watch:hover .se-watch-disc{background:#111711;color:#f2f3ec}
  .signal-editorial .se-read{display:inline-flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 18px;min-height:48px;border:1px solid var(--mc-line);border-radius:999px;font-weight:500;text-decoration:none}
  .arrival-play,.route-light-control{width:48px;height:48px;border-radius:50%;border:1px solid #bbc1b5;background:#f2f3ec;color:#111711}
  .arrival-play .play-mark{width:20px;height:20px;margin:0;border:0;background:currentColor;mask:url('/signal/assets/icons/play.svg') center/contain no-repeat;-webkit-mask:url('/signal/assets/icons/play.svg') center/contain no-repeat}
  .route-light-control svg,.route-invitation>svg{stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
  .route-invitation>svg{width:24px;height:24px}
  .reading-cinema-bar{gap:14px;padding-bottom:12px;min-height:118px}
  .reading-formats{display:flex;padding:4px;gap:4px;border:1px solid var(--mc-line);border-radius:999px;background:#151c16}
  .reading-formats button{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:10px 16px;border:0;border-radius:999px;color:var(--mc-muted);font-weight:500}
  .reading-formats button[aria-pressed=true]{background:#f2f3ec;color:#111711;border:0}
  .reading-formats button::before{content:'';display:block;flex:none;width:18px;height:18px;background:currentColor;mask:var(--mc-icon) center/contain no-repeat;-webkit-mask:var(--mc-icon) center/contain no-repeat}
  .reading-formats [data-format=Portrait]{--mc-icon:url('/signal/assets/icons/portrait.svg')}
  .reading-formats [data-format=Widescreen]{--mc-icon:url('/signal/assets/icons/widescreen.svg')}
  .reading-cinema-foot{gap:12px;min-height:68px}
  .reading-cinema-foot span{max-width:130px}
  .reading-cinema-foot #caption-toggle{min-height:48px;padding:10px 14px;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--mc-line);border-radius:999px;font:500 11px/1.2 Such,Arial,sans-serif;text-decoration:none;white-space:nowrap}
  #caption-toggle::before{content:'';flex:none;width:18px;height:18px;background:currentColor;mask:url('/signal/assets/icons/captions.svg') center/contain no-repeat;-webkit-mask:url('/signal/assets/icons/captions.svg') center/contain no-repeat}
  #caption-toggle[aria-pressed=true]{background:#f2f3ec;color:#111711;border-color:#f2f3ec}
  .signal-editorial .se-motion{display:inline-flex;align-items:center;gap:7px;padding:8px 11px;min-height:48px;border:1px solid var(--mc-line);border-radius:999px;font-size:10px}
  .signal-editorial .se-motion::before{content:'';display:block;flex:none;width:14px;height:14px;background:currentColor;mask:var(--mc-icon) center/contain no-repeat;-webkit-mask:var(--mc-icon) center/contain no-repeat}
  .se-motion{--mc-icon:url('/signal/assets/icons/pause.svg')}
  .se-motion[aria-pressed=true]{--mc-icon:url('/signal/assets/icons/play.svg')}

  /* Selected controls read as distinct, generous touch targets. */
  .signal-editorial .se-conditions{gap:8px;border:0;padding:3px 0 8px;scroll-padding-inline:0}
  .signal-editorial .se-condition,.signal-editorial .se-condition+.se-condition{flex:0 0 46%;min-height:94px;padding:16px;border:1px solid var(--mc-line);border-radius:14px;background:transparent}
  .signal-editorial .se-condition[aria-pressed=true]{background:#1c231d;border-color:#87917f}
  .signal-editorial .se-condition[aria-pressed=true]::before{display:none}
  .route-scenario-controls,.reactive-intelligence__controls{gap:6px;border:0}
  .route-scenario-controls button,.reactive-intelligence .reactive-intelligence__state,.reactive-intelligence__state+.reactive-intelligence__state,.revision-trail button{min-height:48px;padding:12px 10px;border:1px solid var(--mc-line);border-radius:12px;text-align:center}
  .reactive-intelligence__state{font-size:11px}
  .route-scenario-controls button[aria-pressed=true],.reactive-intelligence__state[aria-pressed=true]{background:var(--mc-selected);color:var(--mc-selected-ink);border-color:var(--mc-selected)}
  .route-scenario-controls button[aria-pressed=true]::after,.reactive-intelligence__state[aria-pressed=true]::after{display:none}
  .revision-trail{gap:8px}
  .revision-trail button{font:500 12px/1.4 Such,Arial,sans-serif}
  .route-station{border-radius:12px;padding-inline:10px;min-height:60px}
  .route-station[aria-pressed=true]{background:var(--mc-surface)}
  .route-source-actions button,.reactive-intelligence__inspect{min-height:52px}

  /* Disclosure chevrons and directional/download links share one stroke style. */
  summary{display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;min-height:56px;cursor:pointer}
  summary::-webkit-details-marker{display:none}
  summary>.control-glyph{display:none!important}
  summary::after,.route-scenarios summary::after,.route-scenarios[open] summary::after{content:'';display:block;flex:none;width:20px;height:20px;background:currentColor;mask:url('/signal/assets/icons/chevron-down.svg') center/contain no-repeat;-webkit-mask:url('/signal/assets/icons/chevron-down.svg') center/contain no-repeat;transition:transform .16s ease}
  details[open]>summary::after{transform:rotate(180deg)}
  .signal-editorial .se-library-top button{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:8px 12px;border:1px solid var(--mc-line);border-radius:999px}
  .reading-downloads{display:grid;gap:8px;padding-top:20px}
  .reading-downloads a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 16px;min-height:52px;border:1px solid var(--mc-line);border-radius:14px;text-decoration:none;font-weight:500}
  .companion>a:last-child{gap:10px;min-height:48px;padding:12px 16px;border:1px solid var(--mc-line);border-radius:999px;text-decoration:none}
  @media(max-width:359px){.chapter-navigation a{font-size:12px;padding-inline:3px}}
  @media(prefers-reduced-motion:reduce){:is(button,a,summary),summary::after{transition:none!important}}
  @media(forced-colors:active){.control-glyph::before,button::before,button::after,summary::after{background:ButtonText}.reading-formats button[aria-pressed=true],.chapter-navigation a[aria-current]{outline:2px solid Highlight}}
}