:root { color-scheme: light; --page: #e9ecef; }
  @media (prefers-color-scheme: dark) { :root { color-scheme: dark; --page: #07090d; } }
  * { box-sizing: border-box; }
  html, body { height: 100%; margin: 0; }
  body { background: var(--page); display: flex; align-items: center; justify-content: center; padding: 16px; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
  .frame { position: relative; width: 100%; max-width: 1120px; aspect-ratio: 16 / 9; max-height: calc(100vh - 32px); border-radius: 12px; overflow: hidden; background: #0b1714; color: #f3f6f4; container-type: inline-size; box-shadow: 0 20px 60px rgba(0,0,0,.4); user-select: none; -webkit-user-select: none; }
  .frame:fullscreen, .frame.pseudo-fs { max-width: none; max-height: none; width: 100vw; height: 100vh; aspect-ratio: auto; border-radius: 0; }
  .frame.pseudo-fs { position: fixed; inset: 0; z-index: 99; }
  .frame.idle { cursor: none; }
  .stage { position: absolute; inset: 0; background:
      radial-gradient(ellipse at 30% 20%, rgba(70,140,110,.18), transparent 60%),
      linear-gradient(160deg, #10251f, #0a1613 70%); }
  .stage::before { content: ""; position: absolute; inset: 0; opacity: .5;
      background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: 3cqw 3cqw; }
  .chip { position: absolute; top: 2.2cqw; left: 2.6cqw; font-size: 1.25cqw; font-weight: 600; letter-spacing: .02em; color: #9fe3bf; background: rgba(0,0,0,.25); padding: .45cqw 1cqw; border-radius: .7cqw; transition: opacity .4s; }

  .board { position: absolute; top: 5.6cqw; left: 4cqw; right: 4cqw; bottom: 15.5cqw; transition: right .7s cubic-bezier(.6,0,.2,1); }
  .with-panel .board { right: calc(46% * (1 - var(--bk, 0)) + 4cqw * var(--bk, 0)); }   /* --bk: camera board shot */
  .heading { font-size: 2.4cqw; font-weight: 750; color: #ffe08a; margin-bottom: 1.2cqw; letter-spacing: -.01em; }
  .viewport { position: absolute; top: 4.4cqw; left: 0; right: 0; bottom: 0; overflow: hidden; }
  .lines { transition: transform .7s cubic-bezier(.5,0,.2,1); }
  .ln { display: flex; align-items: center; gap: 1.6cqw; padding: .35cqw 0; }
  .ln .m { position: relative; font-size: 2.45cqw; padding: .25cqw .9cqw; border-radius: .6cqw; }
  .ln .m .katex-display { margin: 0; text-align: left; }
  .ln .m .katex-display > .katex { text-align: left; }
  .ln .m::after { content: ""; position: absolute; inset: -.15cqw; border: .22cqw solid #ffe08a; border-radius: .7cqw; opacity: 0; transform: scale(1.04); transition: opacity .5s, transform .5s; }
  .ln.boxed .m::after { opacity: 1; transform: none; box-shadow: 0 0 1.4cqw rgba(255,224,138,.25); }
  .ln .note { font-size: 1.35cqw; color: #ffb86b; font-style: italic; max-width: 16cqw; line-height: 1.25; opacity: 0; transition: opacity .5s; }
  .ln .note::before { content: "← "; }
  .ln.noted .note { opacity: 1; }
  .panel { position: absolute; top: 6cqw; right: 3cqw; width: 39%; bottom: 14cqw; display: flex; align-items: center; justify-content: center; opacity: 0; transform: translateX(4%); transition: opacity .6s, transform .6s; pointer-events: none; }
  .with-panel .panel { opacity: 1; transform: none; }
  .panel svg { width: 100%; height: 100%; overflow: visible; }
  .panel text { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }

  .count { position: absolute; right: 2.6cqw; top: 2cqw; display: flex; align-items: center; gap: 1.2cqw; background: rgba(0,0,0,.35); border: 1px solid rgba(255,255,255,.15); border-radius: 99px; padding: .7cqw 1.6cqw .7cqw .8cqw; font-size: 1.5cqw; opacity: 0; transition: opacity .4s; }
  .count svg { width: 3.4cqw; height: 3.4cqw; }

  .title { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: radial-gradient(ellipse at 50% 45%, #12352a, #08120f 75%); }
  .title .lvl { font-size: 1.3cqw; letter-spacing: .14em; text-transform: uppercase; color: #9fe3bf; }
  .title h1 { margin: 1cqw 0 .6cqw; font-size: 6.4cqw; letter-spacing: -.02em; line-height: 1; }
  .title p { margin: 0; font-size: 1.9cqw; color: #c9d6cf; }
  .title .eq { margin-top: 2.6cqw; font-size: 2.6cqw; color: #ffe08a; }
  .endcard { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2cqw; background: rgba(6,14,11,.9); opacity: 0; pointer-events: none; transition: opacity .6s; }
  .endcard strong { font-size: 4.2cqw; }
  .endcard button { pointer-events: auto; font: inherit; font-size: 1.6cqw; color: #08120f; background: #9fe3bf; border: 0; border-radius: 99px; padding: .9cqw 2.4cqw; cursor: pointer; }
  .endcard.on { opacity: 1; pointer-events: auto; }
  .endcard:not(.on) button { pointer-events: none; }   /* invisible end-card buttons must never catch taps meant for Play */

  .cap { position: absolute; left: 50%; bottom: 3.2cqw; transform: translateX(-50%); width: 84%; text-align: center; font-size: 1.75cqw; line-height: 1.4; transition: bottom .3s; pointer-events: none; }
  .cap span { background: rgba(0,0,0,.72); padding: .2cqw .7cqw; border-radius: .4cqw; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
  .frame.ctl .cap { bottom: 8.4cqw; }
  .caps-off .cap { display: none; }
  .caps-off .board { bottom: 8cqw; }


  /* ===== theme layer ===== */
  .bg { position: absolute; inset: 0; width: 100%; height: 100%; }
  .stage { background: #0b1714; }
  .stage::before { z-index: 0; }
  .frame:not([data-theme="classic"]) .stage::before { display: none; }
  .chip, .board, .panel, .count, .cap, .mascot, .toast { z-index: 2; }
  .title, .endcard { z-index: 5; }
  .board { padding: 1.3cqw 1.8cqw; border-radius: 1.8cqw; }
  .viewport { top: 6cqw; left: 1.8cqw; right: 1.8cqw; bottom: 1.2cqw; }
  .heading { display: inline-block; transform-origin: left center; }
  .ln { transform-origin: left center; }
  .ln .m { transform-origin: left center; }
  .spk { position: absolute; left: 50%; top: 50%; width: 1.2cqw; height: 1.2cqw; margin: -.6cqw; opacity: 0; pointer-events: none;
         background: var(--spark, #ffe08a); clip-path: polygon(50% 0, 62% 38%, 100% 50%, 62% 62%, 50% 100%, 38% 62%, 0 50%, 38% 38%); }
  .pin { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; transform-origin: 50% 80%; }
  .pin svg { width: 100%; height: 100%; }
  .panel { padding: 1cqw; border-radius: 1.8cqw; }
  .cap { width: 70%; }
  .mascot { position: absolute; left: 1cqw; bottom: .6cqw; width: 9.5cqw; height: 11cqw; pointer-events: none; transition: bottom .3s; }
  .mascot svg { width: 100%; height: 100%; overflow: visible; }
  .frame.ctl .mascot { bottom: 6.2cqw; }
  .frame[data-theme="classic"] .mascot { display: none; }
  .toast { position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%) scale(.6); font-size: 3.4cqw; font-weight: 900; color: #fff; padding: 1cqw 2.6cqw; border-radius: 99px; background: rgba(0,0,0,.55); opacity: 0; pointer-events: none; }
  .toast.show { animation: toast 1.6s ease forwards; }
  @keyframes toast { 0% { opacity: 0; transform: translate(-50%,-50%) scale(.6); } 15% { opacity: 1; transform: translate(-50%,-50%) scale(1.08); } 25% { transform: translate(-50%,-50%) scale(1); } 80% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%,-50%) scale(1); } }
  .frame:not([data-theme="classic"]) { font-family: ui-rounded, "SF Pro Rounded", "Nunito", "Trebuchet MS", system-ui, sans-serif; }
  .frame:not([data-theme="classic"]) .heading { font-weight: 900; padding: .25cqw 1.2cqw; border-radius: 99px; color: #1b1020; }
  .frame:not([data-theme="classic"]) .chip { color: #fff; font-weight: 800; border-radius: 99px; padding: .5cqw 1.3cqw; }
  .frame:not([data-theme="classic"]) .cap span { padding: .35cqw 1cqw; border-radius: .9cqw; }
  .frame:not([data-theme="classic"]) .title { background: transparent; }
  .frame:not([data-theme="classic"]) .title h1 { font-weight: 900; text-shadow: 0 .5cqw 0 rgba(0,0,0,.25), 0 0 3cqw rgba(0,0,0,.25); }
  .frame:not([data-theme="classic"]) .title h1 span { display: inline-block; }
  .frame:not([data-theme="classic"]) .title .lvl, .frame:not([data-theme="classic"]) .title p, .frame:not([data-theme="classic"]) .title .eq { background: rgba(0,0,0,.35); padding: .3cqw 1.2cqw; border-radius: 99px; }

  /* Safari Sunset */
  .frame[data-theme="safari"] { --spark: #ffd36b; }
  .frame[data-theme="safari"] .board, .frame[data-theme="safari"] .panel { background: rgba(52,24,14,.88); box-shadow: 0 1cqw 2.6cqw rgba(40,10,0,.45), inset 0 0 0 .3cqw #f2b134; }
  .frame[data-theme="safari"] .board::before { content: ""; position: absolute; left: 1.8cqw; right: 1.8cqw; top: 0; height: .7cqw; border-radius: 0 0 .4cqw .4cqw;
      background: repeating-linear-gradient(90deg, #f2b134 0 2cqw, #1f8a3e 2cqw 3cqw, #c0392b 3cqw 4.2cqw, #111 4.2cqw 4.8cqw); }
  .frame[data-theme="safari"] .heading { background: linear-gradient(90deg, #ffd36b, #ff9a3c); }
  .frame[data-theme="safari"] .chip { background: #c0392b; }
  .frame[data-theme="safari"] .cap span { background: rgba(43,16,8,.88); box-shadow: 0 0 0 .2cqw #f2b134; }
  .frame[data-theme="safari"] .ln.boxed .m::after { border-color: #ffd36b; }

  /* Green Vegetation */
  .frame[data-theme="vegetation"] { --spark: #fff36b; }
  .frame[data-theme="vegetation"] .board, .frame[data-theme="vegetation"] .panel { background: rgba(14,52,30,.9); box-shadow: 0 1cqw 2.6cqw rgba(0,40,10,.35), inset 0 0 0 .35cqw #8b5a2b, inset 0 0 0 .6cqw #b07a40; }
  .frame[data-theme="vegetation"] .heading { background: linear-gradient(90deg, #c8f56b, #5fd38a); }
  .frame[data-theme="vegetation"] .chip { background: #1f7a3e; }
  .frame[data-theme="vegetation"] .cap span { background: rgba(10,44,24,.9); box-shadow: 0 0 0 .2cqw #8bd36a; }

  /* Ankara Fiesta */
  .frame[data-theme="fiesta"] { --spark: #fff36b; }
  .frame[data-theme="fiesta"] .board, .frame[data-theme="fiesta"] .panel { background: rgba(36,12,72,.9); box-shadow: 0 1cqw 2.6cqw rgba(30,0,40,.45), inset 0 0 0 .3cqw #ff5fa2; }
  .frame[data-theme="fiesta"] .board::before { content: ""; position: absolute; left: 1.8cqw; right: 1.8cqw; top: 0; height: .7cqw; border-radius: 0 0 .4cqw .4cqw;
      background: repeating-linear-gradient(90deg, #ffd23f 0 1.4cqw, #00c2b8 1.4cqw 2.8cqw, #ff5fa2 2.8cqw 4.2cqw); }
  .frame[data-theme="fiesta"] .heading { background: linear-gradient(90deg, #ffd23f, #ff8a3d); }
  .frame[data-theme="fiesta"] .chip { background: #00a39a; }
  .frame[data-theme="fiesta"] .cap span { background: rgba(30,8,60,.9); box-shadow: 0 0 0 .2cqw #ff5fa2; }
  .title .word { white-space: nowrap; font-weight: inherit; }
  .ln .note { flex-shrink: 0; white-space: nowrap; max-width: none; }
  .bigplay { position: absolute; left: 50%; top: 66%; transform: translate(-50%,-50%); width: 7.5cqw; height: 7.5cqw; min-width: 64px; min-height: 64px; border-radius: 50%; border: 0; background: rgba(255,255,255,.95); color: #0b1714; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 40px rgba(0,0,0,.45); }
  .bigplay { z-index: 6; }   /* always above the title card and end card */
  /* The title card fades out but stays on top of the stage: it must never catch taps, or it swallows every
     tap on the control bar (the original "touching the controls stops the video" bug). */
  .title { pointer-events: none; }
  .controls { z-index: 7; }   /* the control bar is above every layer of the picture */
  .bigplay svg { width: 40%; height: 40%; margin-left: 8%; }
  .bigplay[hidden] { display: none; }

  .controls { position: absolute; left: 0; right: 0; bottom: 0; padding: 2.4cqw 1.6cqw 1cqw; background: linear-gradient(transparent, rgba(0,0,0,.78)); opacity: 0; transition: opacity .3s; }
  .frame.ctl .controls { opacity: 1; }
  .seek { position: relative; height: 18px; display: flex; align-items: center; margin: 0 .4cqw .4cqw; }
  .seek input { position: relative; z-index: 2; width: 100%; margin: 0; accent-color: #7cf0a5; cursor: pointer; background: transparent; }
  .ticks { position: absolute; left: 0; right: 0; top: 50%; height: 0; z-index: 1; pointer-events: none; }
  .ticks i { position: absolute; top: -4px; width: 2px; height: 8px; background: rgba(255,255,255,.55); }
  .bar { display: flex; align-items: center; gap: 6px; }
  .bar button { width: 40px; height: 40px; border: 0; border-radius: 8px; background: transparent; color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; flex: none; }
  .bar button:hover { background: rgba(255,255,255,.12); }
  .bar button svg { width: 22px; height: 22px; }
  .bar button.on { color: #7cf0a5; }
  .time { font-size: 13px; color: #dfe8e3; font-variant-numeric: tabular-nums; margin-left: 4px; }
  .chname { flex: 1; min-width: 0; font-size: 13px; color: #b9c9c1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: right; padding-right: 6px; }
  .frame button:focus-visible, .seek input:focus-visible { outline: 2px solid #7cf0a5; outline-offset: 2px; }
  @media (max-width: 560px) { .chname { display: none; } .bar button { width: 36px; height: 36px; } }

  /* ===== captions: never more than two lines (runtime shows long lines in timed chunks) ===== */
  .cap span { display: inline; }
  .frame.ctl .cap { bottom: 9.6cqw; }
  .cap span { white-space: nowrap; }
  .frame.ctl .mascot { opacity: 0; }
  .mascot { transition: bottom .3s, opacity .3s; }

  /* ===== embedded in a lesson (host said hello): size to content so the host can fit the iframe ===== */
  html.embedded, html.embedded body { height: auto; }
  html.embedded body { display: block; padding: 0; background: transparent; }
  html.embedded .frame { max-height: none; max-width: none; box-shadow: none; }
  /* the lesson made this video fullscreen: fill the whole (landscape) iframe */
  html.host-fs, html.host-fs body { height: 100%; overflow: hidden; background: #000; }
  html.host-fs .frame.pseudo-fs { width: 100vw; height: 100vh; border-radius: 0; }

  /* ===== unit fonts: inside a StudyPipe unit the theme's bundled fonts are used (assets/css/fonts.css) ===== */
  .frame { font-family: var(--font-body, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif); }
  .frame .heading, .frame .title h1, .frame .endcard strong { font-family: var(--font-display, inherit); }
  .frame:not([data-theme="classic"]):not([data-theme="unit"]) { font-family: var(--video-rounded, var(--font-body, ui-rounded, "Nunito", system-ui, sans-serif)); }
  .frame[data-theme="unit"], .frame[data-theme="classic"] { font-family: var(--font-body, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif); }
  .panel text { font-family: var(--font-body, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif); }

  /* ===== Unit world: built from the unit theme's tokens (themes/README.md) ===== */
  .frame[data-theme="unit"] { --spark: var(--amber, #ffb23f); }
  .frame[data-theme="unit"] .board, .frame[data-theme="unit"] .panel { background: rgba(var(--ink-900-rgb, 10, 15, 29), .9); box-shadow: 0 1cqw 2.6cqw rgba(0,0,0,.4), inset 0 0 0 1px var(--line-strong, rgba(206,220,255,.18)); }
  .frame[data-theme="unit"] .heading { font-weight: 700; padding: .25cqw 1.2cqw; border-radius: 99px; color: var(--on-amber, #1b1206); background: linear-gradient(90deg, var(--amber, #ffb23f), var(--orange, #ff7a2f)); }
  .frame[data-theme="unit"] .chip { color: #fff; font-weight: 700; border-radius: 99px; padding: .5cqw 1.3cqw; background: var(--crimson, #d22e56); }
  .frame[data-theme="unit"] .cap span { background: rgba(var(--ink-950-rgb, 6, 9, 18), .9); box-shadow: 0 0 0 1px var(--line-strong, rgba(206,220,255,.18)); padding: .35cqw 1cqw; border-radius: .9cqw; }
  .frame[data-theme="unit"] .title { background: transparent; }
  .frame[data-theme="unit"] .title .lvl { color: var(--amber, #ffb23f); }
  .frame[data-theme="unit"] .title .eq { color: var(--amber, #ffb23f); }
  .frame[data-theme="unit"] .ln.boxed .m::after { border-color: var(--amber, #ffb23f); }
  .frame[data-theme="unit"][data-mascot="off"] .mascot { display: none; }

  /* ===== Small landscape frames (phone held sideways, ~550–820 px): give the kit more room ===== */
  @container (max-width: 820px) {
    .with-panel .board { right: calc(51% * (1 - var(--bk, 0)) + 4cqw * var(--bk, 0)); }
    .panel { width: 46%; right: 2cqw; top: 5cqw; bottom: 12cqw; }
  }
  .frame.ctl .cap { bottom: calc(66px + 2cqw); }   /* the control bar is fixed px; clear it at every size */

  /* ===== Camera (plan op { camera: 'wide' | 'kit' | 'board', focus, dur, drift, cut }) =====
     Driven frame-by-frame from the video clock, so CSS transitions are switched off while a shot is active. */
  .stage.cam .board, .stage.cam .panel { transition: none !important; }
  .panel.cam-zoom, .panel.cam-zoom svg { overflow: hidden; }
  .panel { transform-origin: 50% 50%; }
  .board { transform-origin: 0 0; }
  /* Phones held sideways: no page margin, use the full height (16:9 at 360 px tall = 640 px wide) */
  /* Short landscape screens (phones sideways, fullscreen): keep the title card clear of the caption and control bar */
  @media (max-height: 480px) and (min-width: 620px) {
    .title { justify-content: flex-start; padding-top: 7vh; }
    .title h1 { font-size: 5.4cqw; margin: .6cqw 0 .4cqw; }
    .title .eq { margin-top: 1.4cqw; }
  }
  @media (max-height: 480px) and (min-width: 620px) {
    body { padding: 0; }
    .frame { max-height: 100vh; border-radius: 0; box-shadow: none; }
  }   /* the control bar is fixed px; clear it at every size */

  /* ===== Portrait / narrow screens (phones held upright, lesson columns) =====
     The 16:9 overlay layout is unreadable below ~620 px, so the frame becomes a column:
     header · board · kit panel · caption inside the stage, then a control bar that is always visible.
     Sizes are fixed minimums in px, not fractions of the width. */
  @media (max-width: 619px) {
    body { padding: 0; align-items: flex-start; }
    .frame { aspect-ratio: auto; max-height: none; height: auto; border-radius: 14px; }
    .frame.pseudo-fs, .frame:fullscreen { overflow-y: auto; }
    .stage { position: relative; inset: auto; height: clamp(520px, 162vw, 700px); display: flex; flex-direction: column; gap: 8px; padding: 50px 10px 10px; }
    .stage > .bg { position: absolute; inset: 0; }
    .chip { top: 12px; left: 12px; font-size: 12px; padding: 4px 10px; max-width: calc(100% - 96px); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .mascot { left: auto; right: 8px; top: 2px; bottom: auto; width: 40px; height: 46px; }
    .frame.ctl .mascot { bottom: auto; }
    .board { position: relative; inset: auto; flex: 1 1 auto; min-height: 150px; padding: 10px 12px; border-radius: 16px; }
    .with-panel .board { right: auto; }
    .board::before { left: 12px !important; right: 12px !important; height: 5px !important; }
    .heading { font-size: 16px; margin-bottom: 6px; }
    .frame:not([data-theme="classic"]) .heading { padding: 3px 12px; }
    .viewport { top: 46px; left: 12px; right: 12px; bottom: 8px; }
    .ln { flex-wrap: wrap; gap: 2px 10px; padding: 3px 0; }
    .ln .m { font-size: 17px; padding: 2px 6px; border-radius: 8px; }
    .ln .m::after { border-width: 2px; border-radius: 9px; inset: -2px; }
    .ln .note { font-size: 12.5px; white-space: normal; flex-basis: 100%; padding-left: 8px; }
    .ln .note::before { content: "↳ "; }
    .spk { width: 8px; height: 8px; margin: -4px; }
    .panel { position: relative; inset: auto; width: 100%; flex: 0 0 0px; height: 0; padding: 0; transform: none; border-radius: 16px; transition: opacity .5s, flex-basis .6s; overflow: hidden; }
    .with-panel .panel { flex: 0 0 calc(min(270px, 72vw) * (1 - var(--bk, 0))); padding: calc(6px * (1 - var(--bk, 0))); }
    .cap { position: relative; left: auto; bottom: auto; transform: none; width: 100%; flex: 0 0 auto; min-height: 3.1em; font-size: 14.5px; line-height: 1.45; display: flex; align-items: center; justify-content: center; }
    .frame.ctl .cap { bottom: auto; }
    .caps-off .cap { display: none; }
    .cap span { padding: 3px 8px; border-radius: 8px; white-space: normal; }
    .frame.ctl .mascot { opacity: 1; }
    .count { top: 56px; right: 18px; font-size: 13px; padding: 5px 12px 5px 6px; gap: 8px; }
    .count svg { width: 26px; height: 26px; }
    .toast { font-size: 22px; padding: 8px 20px; }
    .title { padding: 0 18px; }
    .title .lvl { font-size: 11px; }
    .title h1 { font-size: clamp(28px, 9vw, 40px); margin: 10px 0 8px; }
    .title p { font-size: 14px; }
    .title .eq { font-size: 16px; margin-top: 16px; }
    .frame:not([data-theme="classic"]) .title .lvl, .frame:not([data-theme="classic"]) .title p, .frame:not([data-theme="classic"]) .title .eq { padding: 3px 12px; }
    .endcard { gap: 14px; padding: 0 18px; text-align: center; }
    .endcard strong { font-size: 24px; }
    .endcard > div { flex-direction: column; gap: 10px !important; }
    .endcard button { font-size: 15px; padding: 10px 22px; }
    .bigplay { top: 76%; width: 72px; height: 72px; }
    .controls { position: relative; opacity: 1; padding: 6px 8px 8px; background: rgba(0,0,0,.88); }
    .frame.idle { cursor: auto; }
    .seek { margin: 0 2px 2px; height: 26px; }
    .bar { gap: 2px; }
    .bar button { width: 38px; height: 40px; }
    #themeBtn { display: none; }   /* the unit theme sets the look; keep the bar to what fits a phone (fullscreen must stay reachable) */
    .time { font-size: 12px; margin-right: auto; white-space: nowrap; min-width: 0; overflow: hidden; }
  }