deck.css

/* @robertblust/design — deck.css, assembled from the shared blocks: link v1 · lockup v1 ·
   transport v11 · rests v1.
   Editing this file in a site does nothing: the next npm run design overwrites it. */

:where(a){color:inherit}
:where(a:not([class])){color:var(--c-mid); text-decoration:none; border-bottom:1px solid transparent}
:where(a:not([class]):hover, a:not([class]):focus-visible){border-bottom-color:var(--c-mid)}

.name{display:flex; align-items:center; gap:.5em}
.name{grid-column:1; justify-self:start;
      font-family:"Instrument Sans", ui-sans-serif, system-ui, sans-serif; font-size:.72rem}
.name .lockup, .name .nperson{display:flex; align-items:center; gap:.6em}
.name .rbmark{display:flex}
.name .rbmark svg{width:15px; height:15px; display:block}
.name .namemark{color:var(--c-mid); display:flex}
.name .namemark svg{width:15px; height:15px; display:block}
.name a:hover b em, .name a:focus-visible b em{color:var(--ink)}
.name .plate{fill:var(--raise); stroke:var(--rule); stroke-width:1.5}
.name .rb{fill:var(--c-mid)}
.name b{color:var(--ink); font-weight:600; letter-spacing:.01em; text-transform:none}
.name b em{font-style:normal; color:var(--c-mid)}
/* "Talks" is a nav item, so it takes the nav treatment the pages use — dim until
   pointed at. The separators are not links and must not read as one. */
.name .nsep{color:var(--dim)}
.name .nlink{color:var(--dim)}
.name a{text-decoration:none; color:inherit; pointer-events:auto}
.name a:hover, .name a:focus-visible{color:var(--ink)}

.transport{
  grid-column:2; justify-self:center;
  display:flex; align-items:center; gap:.45rem;
  background:var(--slab); border:1px solid var(--rule); border-radius:14px;
  padding:.45rem .55rem;
  box-shadow:inset 0 1px 0 var(--deck-lift), 0 12px 34px var(--deck-drop);
}

/* the display window. The hairline under the number is the position of the clip that
   is speaking — how much of this slide is left — and is empty when nothing speaks. */
.lcd{
  display:flex; flex-direction:column; align-items:center; gap:5px;
  background:var(--lcd); border-radius:8px; padding:.44rem .62rem .38rem;
  box-shadow:inset 0 1px 3px var(--lcd-inset), inset 0 0 0 1px var(--lcd-glow);
  font-family:"Plex Mono", ui-monospace, monospace; line-height:1;
  margin-right:.2rem;
}
.lcd .n{font-size:.76rem; font-weight:600; letter-spacing:.09em; color:var(--lcd-ink); white-space:nowrap}
.lcd .n .sep, .lcd .n #tot{color:var(--lcd-faint)}
.lcd .clip{width:100%; height:2px; background:var(--lcd-track); border-radius:2px; overflow:hidden}
.lcd .clip i{display:block; height:100%; width:0; background:var(--lcd-ink); transition:width .25s linear}

.tmain, .tside{display:flex; align-items:center; gap:.45rem}

.tbtn{
  display:grid; place-items:center; width:34px; height:34px; flex:0 0 auto;
  background:none; border:0; border-radius:9px; color:var(--dim); cursor:pointer;
  transition:color .15s ease, background-color .15s ease, border-color .15s ease;
}
.tbtn svg{width:18px; height:18px; fill:currentColor; display:block}
.tbtn svg.stroked{fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round}
.tbtn:hover{color:var(--ink); background:var(--deck-hover)}
/* aria-disabled, not :disabled — the runtime keeps the control focusable and returns
   early from its own handler instead of removing it from the tab order; see
   `deck runtime`'s render() for why a real `disabled` moves focus under the user. */
.tbtn[aria-disabled="true"]{opacity:.35; cursor:default}
.tbtn[aria-disabled="true"]:hover{color:inherit; background:none}
.tbtn:focus-visible{outline:2px solid var(--c-mid); outline-offset:2px; color:var(--ink)}
.tbtn[aria-pressed="true"]{color:var(--c-mid); background:var(--press)}

.tbtn.play{width:44px; height:44px; border-radius:50%; border:1.5px solid var(--deck-ring); color:var(--c-mid)}
.tbtn.play svg{width:17px; height:17px}
.tbtn.play:hover{background:var(--press); border-color:var(--c-mid); color:var(--c-mid)}
.tbtn .icontract{display:none}
.tbtn[aria-pressed="true"] .icontract{display:block}
.tbtn[aria-pressed="true"] .iexpand{display:none}
.tbtn.play .ipause{display:none}
.tbtn.play.on{background:var(--c-mid); border-color:var(--c-mid); color:var(--ground)}
.tbtn.play.on .iplay{display:none}
.tbtn.play.on .ipause{display:block}

/* the exit is an <a>, so it works with no JS and the browser treats it as
   navigation — history, middle-click and "open in new tab" all behave. */
a.tbtn{text-decoration:none}

.tdiv{width:1px; align-self:stretch; margin:.3rem .25rem; background:var(--deck-divider); flex:0 0 auto}

.seg{display:flex; border:1px solid var(--rule); border-radius:8px; overflow:hidden; flex:0 0 auto}
.seg button{
  background:none; border:0; cursor:pointer; padding:.44rem .48rem;
  font-family:"Plex Mono", ui-monospace, monospace; font-size:.63rem; letter-spacing:.12em;
  color:var(--dim); transition:color .15s ease, background-color .15s ease;
  min-height:calc(1lh + .88rem);
}
.seg button:hover{color:var(--ink)}
.seg button[aria-pressed="true"]{color:var(--c-mid); background:var(--press); font-weight:600}
.seg button:focus-visible{outline:2px solid var(--c-mid); outline-offset:-2px}

/* The theme control rides in the transport beside the language one, so it takes the
   transport's touch sizing rather than the header's — the same 44px minimum the seg buttons
   already meet at the mobile breakpoints. Above them it used to carry a height of its own:
   23.3px against the language control's 29.1px, tops 2.9px apart, in a row whose whole point
   is one line. The language control sets the height here, as it does in the header, and the
   theme control matches it rather than being handed a number.

   It matches two ways, because one of them has to hold in a browser with no `lh`. The
   vertical padding is the language button's own .44rem, so an icon the size of a line box
   lands on that height with no calc involved at all; and `.seg button` above carries one
   line box plus that padding as a floor, so an icon *smaller* than a line box is lifted to
   the height instead of shrinking the control. The header writes an `em` fallback beside its
   `lh` and there is deliberately none here: these buttons inherit `line-height:normal`, and
   no `em` value is honestly equal to a normal line box — a fallback guessed at one would be
   this same misalignment again, in exactly the browsers it was added to serve.

   The floor sits on `.seg button` and not on `.seg.theme button`, which is not a matter of
   taste. The three mobile tiers below restate `min-height` on `.seg button`; a floor written
   one class more specific would outrank all three and silently undo the 44/40/36px touch
   sizing at every width this bar was tuned for. */
.seg.theme button{display:grid; place-items:center; padding:.44rem .42rem}
.seg.theme svg{width:13px; height:13px; display:block; fill:none; stroke:currentColor;
               stroke-width:2; stroke-linecap:round; stroke-linejoin:round}

@media (prefers-reduced-motion: reduce){
  .tbtn, .seg button, .lcd .clip i{transition:none}
}

/* the transport becomes the bottom edge itself: full width, flush, clear of the
   home indicator. The lockup does not fit a collapsed single-column bar, so this is
   the one `.name` rule that lives here rather than in `deck lockup` — it is not the
   lockup's identity, it is the bar's own statement that the lockup drops out at this
   width, and it is byte-identical on all four decks like the rest of this block.

   This tier stays at the 44px touch-target floor all the way to 860px. Even with
   every gap cut and both dividers dropped it cannot be tuned below about 487px —
   that is what a row of 44px controls plus the LCD costs — so nothing this block
   is asked to fit (414px, 430px) is asked of this tier either: both land in the
   430px tier below, which drops to 40px controls to make the room this one can't.
   A width between 431px and 486px is not one of the widths this fix was measured
   against, and this tier alone cannot promise it; it is narrower than every phone
   in the required set and wider than the ones this fix was written for. */
@media (max-width: 860px), (max-aspect-ratio: 4/5){
  .name{display:none}
  .transport{
    grid-column:1; justify-self:stretch; width:100%;
    background:none; border:0; border-radius:0; box-shadow:none;
    padding:.3rem .25rem; gap:.1rem; justify-content:space-between;
  }
  .tmain{gap:.05rem}
  .tside{gap:.05rem}
  .tbtn{width:44px; height:44px}
  .tbtn svg{width:20px; height:20px}
  .tbtn.play{width:46px; height:46px}
  .tdiv{display:none}
  .seg button{padding:0 .16rem; min-width:22px; min-height:44px}
  .lcd{padding:.32rem .34rem .28rem; margin-right:0}
  /* The chat's button sits bottom right on every page of the family, beside the transport on
     a desk. Here the transport spans the whole bottom edge and leaves the button no place:
     over the transport it hides the controls, and above it it hides the slide. So a deck
     shows no chat button on a phone. The chat itself stays, and `?chat=open`, the address a
     PDF page links, still opens it. `body` outranks chat.css's own rule, which a deck
     links after this file. */
  body .rbchat-open{display:none}
}
/* the theme control's two buttons moved this threshold up from 400px: at 40px
   buttons this tier's own floor is under 360px, so 390, 393, 414 and 430 all fit
   it comfortably where they could not fit the 44px tier above. */
@media (max-width: 430px){
  .lcd{display:none}
  .transport{padding:.28rem .15rem; gap:.04rem}
  .tbtn{width:40px; height:40px}
  .tbtn.play{width:42px; height:42px}
  .tmain{gap:0}
  .tside{gap:.02rem}
  .tdiv{display:none}
  .seg button{padding:0 .06rem; min-width:14px; min-height:40px; font-size:.53rem; letter-spacing:0}
  .seg.theme button{padding:.13rem .14rem}
  .seg.theme svg{width:10px; height:10px}
}
/* the smallest phones still in use. body{overflow:hidden} hides a transport that is
   wider than the screen instead of scrolling it, so this has to be measured, not assumed.
   Every value here is smaller than the tier above's, not larger — the 430px tier's own
   rules still apply underneath and the one written later in the file wins, so a value left
   unset here would fall back to a size meant for a wider phone, not shrink further. */
@media (max-width: 350px){
  .transport{padding:.22rem .1rem; gap:.02rem}
  .tbtn{width:36px; height:36px}
  .tbtn svg{width:18px; height:18px}
  .tbtn.play{width:38px; height:38px}
  .tmain{gap:0}
  .tside{gap:0}
  .tdiv{display:none}
  .seg button{min-width:12px; min-height:36px; padding:0 .04rem; font-size:.5rem}
  .seg.theme button{padding:.1rem .1rem}
  .seg.theme svg{width:8px; height:8px}
}

.rests{display:flex; flex-wrap:wrap; align-items:center; gap:1cqmin; margin-top:3.4cqmin}
.rests b{font-weight:400; font-size:clamp(.78rem,1.45cqmin,1.05rem); letter-spacing:.16em; text-transform:uppercase; color:var(--dim); margin-right:.6cqmin}
.rests a{font-family:"Plex Mono", ui-monospace, monospace; font-size:clamp(.78rem,1.45cqmin,1.05rem);
         border:1px solid var(--rule); background:var(--raise); border-radius:6px; padding:.3em .65em;
         color:var(--c-mid); text-decoration:none; transition:border-color .15s ease}
.rests a:hover{border-color:var(--c-mid)}
.rests a:focus-visible{outline:2px solid var(--c-mid); outline-offset:2px}
.rests a i{font-style:normal; color:var(--dim)}