/* ==========================================================================
   NVIL Adapt — responsive interface systems (EXP-006)
   The lab around the frames: near-black, thin lines, mono labels, the red
   mark. The centrepiece is the changing viewport, so the chrome stays
   quiet: a sticky control deck, a frame per bench, a readout that only
   says what the document is actually doing. The demo site inside the
   frames has its own sheet (site.css) and its own palette.
   ========================================================================== */

/* ---------- the page: header becomes a Lab mode bar, like Motion, Shift and Response ---------- */
body.adapt-page .header { position: relative; transform: none; }
body.adapt-page .header:not(.header--menu-open) { background: var(--bg); }
body.adapt-page .header--hidden { transform: none; pointer-events: auto; }
body.adapt-page .header--scrolled { backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: 0 1px 0 var(--line); }
body.adapt-page .nav { padding-block: .55rem; }
body.adapt-page .nav__menu, body.adapt-page .nav__toggle { display: none; }
body.adapt-page .nav__brand img { width: 84px; }
body.adapt-page .footer { position: relative; z-index: 1; }
body.adapt-page .scrollbar { display: none; }
.ad-modebar { display: flex; align-items: center; gap: .9rem; font: 600 .66rem/1 var(--ad-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.ad-modebar__label { color: var(--ink); }
.ad-modebar__exp { margin-left: .5rem; padding: .32rem .5rem; border: 1px solid var(--line); color: var(--accent-text); }
.ad-modebar__exit { color: var(--ink-soft); text-decoration: none; padding: .34rem .55rem; border: 1px solid transparent; transition: color .2s ease, border-color .2s ease; }
.ad-modebar__exit:hover { color: var(--accent-text); border-color: var(--line); }
@media (max-width: 640px) { .ad-modebar__exp { display: none; } }

/* ---------- tokens ---------- */
:root { --ad-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace; }
body.adapt-page {
  --ad-bg: #0D0D0D; --ad-panel: #121214; --ad-raised: #17181C; --ad-line: #2B2E33; --ad-line-soft: rgba(244,244,245,.1);
  --ad-ink: #F4F4F5; --ad-soft: #A6A9AF; --ad-dim: #80848C; --ad-red: #E90012; --ad-red-text: #FF2A3C;
  --ad-ease: cubic-bezier(.22, .8, .3, 1); --sim-w: 1280;
}
body.is-resizing { user-select: none; -webkit-user-select: none; cursor: ew-resize; }
body.is-resizing .ad-frame__site { pointer-events: none; }
.ad { --grid-dot: rgba(244,244,245,.07); color-scheme: dark; position: relative; background: var(--ad-bg); color: var(--ad-ink); font-family: var(--font-body); -webkit-font-smoothing: antialiased; overflow-x: clip; }
.ad *, .ad *::before, .ad *::after { box-sizing: border-box; }
.ad p, .ad h1, .ad h2, .ad h3, .ad dl, .ad dd { margin: 0; }
.ad :focus-visible { outline: 2px solid var(--ad-red); outline-offset: 3px; }
.ad-mono { font: 500 .68rem/1.5 var(--ad-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ad-soft); }
.ad-mono--dim { color: var(--ad-dim); }
.ad-kicker { display: flex; align-items: center; gap: .55rem; flex-wrap: wrap; }
.ad-tag { margin-left: .4rem; padding: .22rem .5rem; border: 1px solid var(--ad-line); color: var(--ad-dim); font-size: .6rem; }
.ad-tri { width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 8px solid var(--ad-red); display: inline-block; margin-right: .5rem; }
.ad-cta { display: inline-flex; align-items: center; gap: .6rem; }
.ad-textlink { color: var(--ad-soft); font: 600 .72rem/1 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; text-decoration: none; border-bottom: 1px solid var(--ad-line); padding-bottom: .3rem; }
.ad-textlink:hover { color: var(--ad-ink); border-color: var(--ad-red); }
.ad .btn--ghost { background: transparent; color: var(--ad-ink); border: 1px solid var(--ad-line); }
.ad .btn--ghost:hover { border-color: var(--ad-ink); }
.ad-nojs { padding: 2rem; text-align: center; font-size: .9rem; color: var(--ad-dim); }
.ad input[type="range"] { accent-color: var(--ad-red); cursor: pointer; margin: 0; }
.ad-btn { display: inline-flex; align-items: center; gap: .5rem; min-height: 38px; padding: .45rem .8rem; background: none; border: 1px solid var(--ad-line); color: var(--ad-ink); cursor: pointer; font: 600 .62rem/1 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; transition: border-color .2s ease, background .2s ease, color .2s ease; }
.ad-btn:hover { border-color: var(--ad-ink); }
.ad-btn b { color: var(--ad-red-text); font-size: .74rem; }
.ad-btn--switch i, .ad-deck__switch i { position: relative; width: 24px; height: 13px; border-radius: 999px; background: var(--ad-line); transition: background .2s ease; }
.ad-btn--switch i::after, .ad-deck__switch i::after { content: ""; position: absolute; top: 2px; left: 2px; width: 9px; height: 9px; border-radius: 50%; background: var(--ad-ink); transition: transform .2s var(--ad-ease); }
.ad-btn--switch[aria-pressed="true"], .ad-deck__switch[aria-pressed="true"] { border-color: var(--ad-ink); color: var(--ad-ink); }
.ad-btn--switch[aria-pressed="true"] i, .ad-deck__switch[aria-pressed="true"] i { background: var(--ad-red); }
.ad-btn--switch[aria-pressed="true"] i::after, .ad-deck__switch[aria-pressed="true"] i::after { transform: translateX(11px); }
.ad-range { display: grid; gap: .4rem; flex: 1 1 14rem; max-width: 26rem; }
.ad-range .ad-mono b { color: var(--ad-ink); margin-left: .3rem; font-variant-numeric: tabular-nums; }
.ad-range input { width: 100%; }
.ad-ctl__note { flex-basis: 100%; }

/* ---------- intro ---------- */
.ad-intro { position: relative; min-height: calc(100vh - 46px); display: flex; align-items: center; padding: clamp(3rem, 8vw, 6rem) clamp(1.25rem, 6vw, 6rem); overflow: hidden; }
.ad-intro__grid { position: absolute; inset: 0; background-image: linear-gradient(var(--ad-line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--ad-line-soft) 1px, transparent 1px); background-size: 64px 64px; opacity: .55; pointer-events: none; -webkit-mask-image: radial-gradient(ellipse at 30% 50%, #000 30%, transparent 75%); mask-image: radial-gradient(ellipse at 30% 50%, #000 30%, transparent 75%); }
.ad-intro__in { position: relative; max-width: 60rem; }
.ad-intro__title { margin: 1.6rem 0 .6rem; font: 800 clamp(2.5rem, 6.8vw, 5.8rem)/.98 var(--font-display); letter-spacing: -.035em; text-transform: uppercase; }
.ad-intro__line { margin: 0 0 1.3rem; font: 800 clamp(1.6rem, 4vw, 3.2rem)/1.02 var(--font-display); letter-spacing: -.03em; text-transform: uppercase; color: var(--ad-red-text); }
.ad-intro__sub { max-width: 36rem; color: var(--ad-soft); font-size: 1.05rem; line-height: 1.65; }
.ad-intro__cue { margin: 2.2rem 0 2.6rem; }
.ad-cue { display: inline-flex; align-items: center; gap: .7rem; color: var(--ad-ink); text-decoration: none; font: 600 .78rem/1 var(--ad-mono); letter-spacing: .2em; text-transform: uppercase; padding: .9rem 1.2rem; border: 1px solid var(--ad-line); transition: border-color .2s ease; }
.ad-cue:hover { border-color: var(--ad-red); }
.ad-cue__arrow { display: inline-block; color: var(--ad-red-text); animation: ad-cue 2.4s cubic-bezier(.65, 0, .35, 1) infinite; }
@keyframes ad-cue { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(5px); } }
.ad-readout { display: grid; grid-template-columns: repeat(4, auto); gap: 1.6rem 2.6rem; margin: 0 0 1.6rem; padding: 1rem 0; border-top: 1px solid var(--ad-line); border-bottom: 1px solid var(--ad-line); width: max-content; max-width: 100%; }
.ad-readout div { display: grid; gap: .35rem; }
.ad-readout dt { font: 500 .6rem/1 var(--ad-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--ad-dim); }
.ad-readout dd { margin: 0; font: 600 .74rem/1 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ad-ink); }
.ad-readout__ok::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--ad-red); margin-right: .5rem; box-shadow: 0 0 0 3px rgba(233,0,18,.2); }
.ad-intro__exp { margin-top: .2rem; }
/* the sketch: a frame that breathes between widths until the visitor takes over */
.ad-intro__sketch { position: absolute; right: clamp(1.25rem, 6vw, 6rem); top: 50%; transform: translateY(-50%); width: min(26vw, 380px); display: grid; gap: .6rem; pointer-events: none; }
.ad-intro__sketch-box { position: relative; height: 210px; border: 1px dashed var(--ad-line); }
.ad-intro__sketch-box i { position: absolute; left: 0; top: 0; bottom: 0; width: 100%; border: 1px solid var(--ad-red); background: repeating-linear-gradient(90deg, rgba(233,0,18,.08) 0 8.33%, transparent 8.33% 10%); animation: ad-breathe 7s ease-in-out infinite; }
.ad-intro__sketch-box i::before { content: ""; position: absolute; left: 10%; right: 10%; top: 18%; height: 3px; background: var(--ad-line); }
.ad-intro__sketch-box i::after { content: ""; position: absolute; left: 10%; top: 30%; width: 44%; height: 34%; border: 1px solid var(--ad-soft); }
.ad-intro__sketch p { display: flex; justify-content: space-between; }
@keyframes ad-breathe { 0%, 100% { width: 32%; } 50% { width: 100%; } }
.ad-intro__sketch.is-manual .ad-intro__sketch-box i { animation: none; width: 100%; }
@media (max-width: 1100px) { .ad-intro__sketch { display: none; } }

/* ---------- the deck: one sticky control strip ---------- */
.ad-deck { position: sticky; top: 0; z-index: 45; display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1.1rem; padding: .5rem clamp(1.25rem, 4vw, 4rem); background: rgba(13,13,13,.94); border-block: 1px solid var(--ad-line); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
@media (max-width: 1280px) { .ad-deck__range { flex-basis: 100%; order: 3; } .ad-deck__presets { order: 4; } .ad-deck__switches { order: 5; margin-left: auto; } }
@media (max-width: 1600px) { .ad-deck__engine { display: none; } .ad-deck__preset small { display: none; } }
.ad-deck__brand { display: inline-flex; align-items: center; font: 600 .62rem/1 var(--ad-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ad-ink); white-space: nowrap; }
.ad-deck__engine { margin-left: .5rem; color: var(--ad-dim); }
.ad-deck__read { display: inline-flex; align-items: baseline; gap: .35rem; font: 500 .58rem/1 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ad-dim); white-space: nowrap; }
.ad-deck__read b[data-w] { font-size: 1rem; color: var(--ad-ink); font-variant-numeric: tabular-nums; min-width: 2.6em; }
.ad-deck__sep { margin-inline: .4rem; }
.ad-deck__bp { padding: .25rem .4rem; border: 1px solid var(--ad-line); color: var(--ad-red-text); font-size: .6rem; }
.ad-deck__bp.is-bumped, .ad-frame__mode.is-bumped { animation: ad-bump .6s ease; }
@keyframes ad-bump { 0% { border-color: var(--ad-red); box-shadow: 0 0 0 4px rgba(233,0,18,.35); } 100% { border-color: var(--ad-line); box-shadow: 0 0 0 0 rgba(233,0,18,0); } }
.ad-deck__range { flex: 1 1 14rem; display: flex; align-items: center; gap: .6rem; font: 500 .52rem/1 var(--ad-mono); letter-spacing: .12em; color: var(--ad-dim); }
.ad-deck__range input { flex: 1; min-width: 6rem; }
.ad-deck__presets { display: flex; gap: .3rem; }
.ad-deck__preset { display: inline-flex; align-items: baseline; gap: .35rem; min-height: 34px; padding: .3rem .5rem; background: none; border: 1px solid var(--ad-line); color: var(--ad-soft); cursor: pointer; font: 600 .54rem/1 var(--ad-mono); letter-spacing: .12em; text-transform: uppercase; text-align: left; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.ad-deck__preset small { font-size: .5rem; color: var(--ad-dim); }
.ad-deck__preset:hover { border-color: var(--ad-ink); color: var(--ad-ink); }
.ad-deck__preset[aria-pressed="true"] { background: var(--ad-ink); border-color: var(--ad-ink); color: var(--ad-bg); }
.ad-deck__preset[aria-pressed="true"] small { color: var(--ad-bg); }
.ad-deck__switches { display: flex; gap: .3rem; }
.ad-deck__switch { display: inline-flex; align-items: center; gap: .45rem; min-height: 34px; padding: .3rem .55rem; background: none; border: 1px solid var(--ad-line); color: var(--ad-soft); cursor: pointer; font: 600 .58rem/1 var(--ad-mono); letter-spacing: .12em; text-transform: uppercase; transition: border-color .2s ease, color .2s ease; white-space: nowrap; }

/* ---------- system shell: head, bench, spec ---------- */
.ad-sys { position: relative; border-top: 1px solid var(--ad-line); padding: clamp(3rem, 6vw, 5rem) clamp(1.25rem, 6vw, 6rem); content-visibility: auto; contain-intrinsic-size: auto 1000px; }
.ad-sys, .ad-compare, .ad-outro { scroll-margin-top: calc(var(--ad-deck-h, 56px) + .5rem); }
.ad-sys__head { display: grid; grid-template-columns: 8rem minmax(0, 1fr); gap: .6rem 2rem; align-items: baseline; margin-bottom: 2rem; }
.ad-sys__id { font: 500 .62rem/1 var(--ad-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ad-dim); }
.ad-sys__id b { display: block; margin-bottom: .5rem; font-size: 1rem; color: var(--ad-red-text); }
.ad-sys__name { font: 800 clamp(1.6rem, 3.4vw, 2.6rem)/1.02 var(--font-display); letter-spacing: -.025em; text-transform: uppercase; }
.ad-sys__desc { grid-column: 2; max-width: 40rem; color: var(--ad-soft); font-size: 1rem; line-height: 1.6; }
.ad-sys__body { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: clamp(1.5rem, 3vw, 3rem); align-items: start; }
.ad-sys--wide .ad-sys__body { grid-template-columns: minmax(0, 1fr) 270px; }
.ad-sys__side { display: grid; gap: 1rem; }
.ad-bench { border: 1px solid var(--ad-line); background: var(--ad-panel); min-width: 0; }
.ad-bench__bar { display: flex; justify-content: space-between; align-items: center; gap: .6rem 1.4rem; flex-wrap: wrap; padding: .7rem 1rem; border-bottom: 1px solid var(--ad-line); }
.ad-prompt { color: var(--ad-soft); }
.ad-read { display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; }
.ad-read div { display: flex; align-items: baseline; gap: .4rem; font: 500 .58rem/1.4 var(--ad-mono); letter-spacing: .12em; text-transform: uppercase; white-space: nowrap; }
.ad-read dt { color: var(--ad-dim); }
.ad-read dd { color: var(--ad-ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.ad-read div:first-child dd { color: var(--ad-red-text); }
.ad-bench__area { padding: clamp(1rem, 2.5vw, 1.8rem) clamp(2.4rem, 4vw, 3rem); background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px); background-size: 28px 28px; }
.ad-bench__ctl { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; padding: .7rem 1rem; border-top: 1px solid var(--ad-line); }
.ad-spec { position: relative; width: 300px; max-width: 100%; padding: 1rem 1.1rem 1.1rem; background: rgba(13,13,13,.92); border: 1px solid var(--ad-line); }
.ad-sys--wide .ad-spec { width: 100%; }
.ad-spec__rows { margin: 0; display: grid; gap: .1rem; }
.ad-spec__rows div { display: grid; grid-template-columns: 5.4rem 1fr; gap: .5rem; align-items: baseline; padding: .42rem 0; border-top: 1px solid var(--ad-line-soft); }
.ad-spec__rows div:first-child { border-top: 0; padding-top: 0; }
.ad-spec__rows dt { font: 500 .58rem/1.4 var(--ad-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ad-dim); }
.ad-spec__rows dd { margin: 0; font: 600 .64rem/1.45 var(--ad-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ad-ink); }
.ad-spec__rows div:first-child dd { color: var(--ad-red-text); }

/* ---------- the frame ---------- */
.ad-frame { --w: var(--sim-w, 1280); --avail: 800; --scale: min(1, calc(var(--avail) / var(--w))); position: relative; width: 100%; }
.ad-frame__box { position: relative; width: calc(var(--w) * 1px * var(--scale)); max-width: 100%; margin-inline: auto; }
.ad-frame__chrome { display: flex; align-items: center; gap: .8rem; height: 34px; padding: 0 .75rem; background: var(--ad-raised); border: 1px solid var(--ad-line); border-bottom: 0; border-radius: 8px 8px 0 0; font: 600 .56rem/1 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ad-soft); white-space: nowrap; overflow: hidden; }
.ad-frame__dots { display: inline-flex; gap: 4px; }
.ad-frame__dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--ad-line); }
.ad-frame__w b { color: var(--ad-ink); font-size: .74rem; margin: 0 .25rem 0 .5rem; font-variant-numeric: tabular-nums; }
.ad-frame__mode { display: inline-flex; align-items: center; gap: .4rem; margin-left: auto; padding: .3rem .5rem; border: 1px solid var(--ad-line); border-radius: 4px; color: var(--ad-ink); }
.ad-frame__mode b { color: var(--ad-red-text); }
.ad-frame__scale { color: var(--ad-dim); }
.ad-frame__scale b { color: var(--ad-ink); margin-left: .35rem; }
.ad-frame__stage { position: relative; width: 100%; height: var(--frame-h, 520px); overflow: hidden; background: #F5F2EB; border: 1px solid var(--ad-line); border-radius: 0 0 8px 8px; }
.ad-frame__site { width: calc(var(--w) * 1px); height: calc(var(--frame-h, 520px) / var(--scale)); transform: scale(var(--scale)); transform-origin: 0 0; overflow: auto; container-type: inline-size; container-name: viewport; background: #F5F2EB; }
.ad-frame__handle { position: absolute; top: 34px; bottom: 0; width: 28px; display: grid; place-items: center; cursor: ew-resize; touch-action: none; z-index: 6; }
.ad-frame__handle--l { left: -34px; } .ad-frame__handle--r { right: -34px; }
.ad-frame__handle i { width: 6px; height: 48px; border-radius: 3px; background: var(--ad-line); transition: background .2s ease, transform .2s ease; }
.ad-frame__handle:hover i, .ad-frame__handle.is-active i, .ad-frame__handle:focus-visible i { background: var(--ad-red); transform: scaleY(1.25); }
.ad-frame__handle:focus-visible { outline: 2px solid var(--ad-red); outline-offset: 2px; border-radius: 6px; }
.ad-frame--fixed .ad-frame__w span { color: var(--ad-dim); }

/* ---------- the device (A-010) ---------- */
.ad-device { --dw: 390; --dh: 720; --dscale: 1; display: grid; justify-items: center; }
.ad-device__stage { width: calc(var(--dw) * 1px * var(--dscale) + 20px); height: calc(var(--dh) * 1px * var(--dscale) + 20px); padding: 10px; background: var(--ad-raised); border: 1px solid var(--ad-line); border-radius: 26px; transition: width .4s var(--ad-ease), height .4s var(--ad-ease); }
.ad-device__screen { width: calc(var(--dw) * 1px); height: calc(var(--dh) * 1px); transform: scale(var(--dscale)); transform-origin: 0 0; overflow: hidden; border-radius: 16px; background: #F5F2EB; container-type: size; container-name: device; }
.ad-device__screen .site { height: 100%; }

/* ---------- the panel (A-012) ---------- */
.ad-panel { padding: .9rem 1rem 1rem; background: rgba(13,13,13,.92); border: 1px solid var(--ad-line); }
.ad-panel__head { display: flex; align-items: center; margin-bottom: .6rem; font: 600 .6rem/1 var(--ad-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--ad-ink); }
.ad-panel__rows { margin: 0; display: grid; }
.ad-panel__rows div { display: grid; grid-template-columns: 5.6rem 1fr; gap: .5rem; padding: .4rem 0; border-top: 1px solid var(--ad-line-soft); font: 500 .58rem/1.4 var(--ad-mono); letter-spacing: .12em; text-transform: uppercase; }
.ad-panel__rows div:first-child { border-top: 0; padding-top: 0; }
.ad-panel__rows dt { color: var(--ad-dim); }
.ad-panel__rows dd { color: var(--ad-ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.ad-panel__rows [data-k="viewport"] dd, .ad-panel__rows [data-k="bp"] dd { color: var(--ad-red-text); }

/* ---------- the comparison ---------- */
.ad-compare { position: relative; border-top: 1px solid var(--ad-line); padding: clamp(3rem, 6vw, 5rem) clamp(1.25rem, 6vw, 6rem); }
.ad-compare__head { max-width: 60rem; margin-bottom: 2rem; }
.ad-compare__title { margin: 1.2rem 0 1rem; font: 800 clamp(2rem, 5vw, 4.4rem)/.98 var(--font-display); letter-spacing: -.035em; text-transform: uppercase; }
.ad-compare__sub { max-width: 38rem; color: var(--ad-soft); font-size: 1.02rem; line-height: 1.65; }
.ad-compare__ctl { display: flex; flex-wrap: wrap; align-items: end; gap: 1rem 2rem; margin-bottom: 1.4rem; }
.ad-compare__presets { display: flex; flex-wrap: wrap; gap: .3rem; }
.ad-compare__pair { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.5rem; }
.ad-compare__col { min-width: 0; padding: 1rem; border: 1px solid var(--ad-line); background: var(--ad-panel); background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px); background-size: 28px 28px; }
.ad-compare__label { margin-bottom: .8rem; font: 500 .62rem/1.5 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ad-soft); }
.ad-compare__label b { color: var(--ad-ink); margin-right: .5rem; }
.ad-compare__col[data-variant="adaptive"] .ad-compare__label b { color: var(--ad-red-text); }

/* ---------- progress rail ---------- */
.ad-rail { position: fixed; right: clamp(.6rem, 2vw, 1.6rem); top: 50%; transform: translateY(-50%); z-index: 40; display: grid; gap: .3rem; }
.ad-rail__item { display: grid; grid-template-columns: auto 8px; align-items: center; gap: .5rem; padding: .12rem .2rem; background: none; border: 0; color: var(--ad-dim); cursor: pointer; font: 600 .56rem/1 var(--ad-mono); letter-spacing: .12em; text-decoration: none; }
.ad-rail__item i { width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--ad-dim); transition: background .25s ease, border-color .25s ease, transform .25s ease; }
.ad-rail__item.is-done i { background: var(--ad-soft); border-color: var(--ad-soft); }
.ad-rail__item.is-on { color: var(--ad-ink); }
.ad-rail__item.is-on i { background: var(--ad-red); border-color: var(--ad-red); transform: scale(1.3); box-shadow: 0 0 0 4px rgba(233,0,18,.18); }
.ad-rail__label { position: absolute; right: 0; bottom: calc(100% + .8rem); white-space: nowrap; padding: .4rem .6rem; background: rgba(13,13,13,.9); border: 1px solid var(--ad-line); font: 600 .6rem/1 var(--ad-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ad-ink); opacity: 0; transition: opacity .3s ease; pointer-events: none; }
.ad-rail.is-active:hover .ad-rail__label, .ad-rail.is-active:focus-within .ad-rail__label { opacity: 1; }
.ad-rail__label b { color: var(--ad-red-text); margin-right: .5rem; }
.ad-rail__mobile { display: none; }

/* ---------- outro ---------- */
.ad-outro { position: relative; min-height: 90vh; display: flex; align-items: center; padding: clamp(4rem, 10vh, 8rem) clamp(1.25rem, 6vw, 6rem); border-top: 1px solid var(--ad-line); background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px); background-size: 28px 28px; }
.ad-outro__in { max-width: 60rem; }
.ad-outro__count { color: var(--ad-soft); }
.ad-outro__count b { color: var(--ad-red-text); margin-right: .8rem; font-size: 1rem; }
.ad-outro__title { margin: 1.4rem 0 1rem; font: 800 clamp(2.2rem, 6.2vw, 5.4rem)/.98 var(--font-display); letter-spacing: -.035em; text-transform: uppercase; }
.ad-outro__line { margin: 0 0 1.4rem; font: 700 clamp(1.3rem, 3.4vw, 2.6rem)/1.08 var(--font-display); letter-spacing: -.03em; text-transform: uppercase; color: var(--ad-red-text); }
.ad-outro__sub { max-width: 38rem; color: var(--ad-soft); font-size: 1.05rem; line-height: 1.65; margin-bottom: 2rem; }
.ad-outro__brand { margin-bottom: 2rem; color: var(--ad-soft); }
.ad-outro__brand b { color: var(--ad-ink); margin-right: .8rem; }
.ad-outro__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2rem; }
.ad-outro__replay { margin-bottom: 2.4rem; }
.ad-outro__in > * { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ad-ease), transform .7s var(--ad-ease); }
.ad-outro.is-in .ad-outro__in > * { opacity: 1; transform: none; }
.ad-outro.is-in .ad-outro__in > :nth-child(2) { transition-delay: .1s; } .ad-outro.is-in .ad-outro__in > :nth-child(3) { transition-delay: .2s; } .ad-outro.is-in .ad-outro__in > :nth-child(4) { transition-delay: .3s; } .ad-outro.is-in .ad-outro__in > :nth-child(5) { transition-delay: .4s; } .ad-outro.is-in .ad-outro__in > :nth-child(6) { transition-delay: .5s; } .ad-outro.is-in .ad-outro__in > :nth-child(7) { transition-delay: .6s; } .ad-outro.is-in .ad-outro__in > :nth-child(8) { transition-delay: .7s; }

/* ---------- phones and small tablets: the frame fills the width and scales the simulation ---------- */
@media (max-width: 900px) {
  .ad-intro { min-height: calc(100vh - 46px); padding: 3rem 1.25rem; }
  .ad-readout { grid-template-columns: 1fr 1fr; gap: 1rem 1.6rem; width: 100%; }
  /* two rows: the readout and the slider, then the presets (scrolling) and the switches */
  .ad-deck { padding: .45rem .9rem; gap: .45rem .7rem; }
  .ad-deck__brand { display: none; }
  .ad-deck__read { flex: none; }
  .ad-deck__k, .ad-deck__unit, .ad-deck__read [data-mode] { display: none; }
  .ad-deck__range { flex: 1 1 200px; order: 0; }
  .ad-deck__min, .ad-deck__max { display: none; }
  .ad-deck__presets { flex: 1 1 150px; order: 0; min-width: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .ad-deck__presets::-webkit-scrollbar { display: none; }
  .ad-deck__preset { flex: none; min-height: 32px; padding-inline: .45rem; }
  .ad-deck__preset small { display: none; }
  .ad-deck__switches { flex: none; order: 0; margin-left: 0; }
  .ad-deck__switch { min-height: 32px; padding-inline: .45rem; }
  .ad-sys { padding: 2.6rem 1.25rem 3rem; contain-intrinsic-size: auto 1200px; }
  .ad-sys__head { grid-template-columns: 1fr; gap: .5rem; margin-bottom: 1.4rem; }
  .ad-sys__desc { grid-column: 1; }
  .ad-sys__body, .ad-sys--wide .ad-sys__body { grid-template-columns: 1fr; gap: 1rem; }
  .ad-spec { width: 100%; }
  .ad-bench__bar { padding: .7rem .9rem; }
  .ad-bench__area { padding: .9rem .75rem; }
  .ad-frame__box { max-width: 100%; }
  .ad-frame__handle { width: 26px; background: linear-gradient(90deg, rgba(13,13,13,.45), transparent); }
  .ad-frame__handle--l { left: 0; } .ad-frame__handle--r { right: 0; background: linear-gradient(-90deg, rgba(13,13,13,.45), transparent); }
  .ad-frame__handle i { background: rgba(244,244,245,.6); }
  .ad-frame__chrome { gap: .5rem; padding: 0 .5rem; }
  .ad-frame__mode span { display: none; }
  .ad-compare { padding: 2.6rem 1.25rem 3rem; }
  .ad-compare__pair { grid-template-columns: 1fr; }
  .ad-outro { padding: 4rem 1.25rem; }
  .ad-rail { display: none; }
  .ad-rail__mobile { display: flex; align-items: center; gap: .6rem; position: fixed; right: .75rem; bottom: .9rem; z-index: 40; padding: .5rem .65rem; background: var(--ad-bg); border: 1px solid var(--ad-line); font: 600 .58rem/1 var(--ad-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ad-ink); max-width: 60vw; }
  .ad-rail__mobile b { color: var(--ad-red-text); white-space: nowrap; }
  .ad-rail__mobile i { display: block; flex: none; width: 44px; height: 2px; background: var(--ad-line); position: relative; }
  .ad-rail__mobile i::after { content: ""; position: absolute; inset: 0; background: var(--ad-red); transform-origin: left; transform: scaleX(var(--pp, 0)); }
  .ad-rail__mobile span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
}
@media (max-width: 560px) {
  .ad-deck__sep, .ad-deck__bp { display: none; }   /* the frame chrome carries the breakpoint on small phones */
  .ad-frame__scale span { display: none; }
  .ad-frame__w span { display: none; }
  .ad-frame__w b { margin-left: 0; }
}

/* ---------- reduced motion: layouts still adapt, the easing goes ----------
   style.css gives every element a .01ms transition under the media query;
   inside Adapt that would let a width write settle a frame late and the
   readouts read stale values, so the lab and the sites get none at all. */
html.ad-reduce .ad *, html.ad-reduce .ad *::before, html.ad-reduce .ad *::after { transition: none !important; animation: none !important; }
html.ad-reduce .ad-cue__arrow { animation: none; }
html.ad-reduce .ad-intro__sketch-box i { animation: none; width: 100%; }
html.ad-reduce .ad-deck__bp.is-bumped, html.ad-reduce .ad-frame__mode.is-bumped { animation: none; }
html.ad-reduce .ad-device__stage { transition: none; }
html.ad-reduce .ad-frame__handle i, html.ad-reduce .ad-rail__item i, html.ad-reduce .ad-btn--switch i::after, html.ad-reduce .ad-deck__switch i::after { transition: none; }
html.ad-reduce .ad-rail__item.is-on i { transform: none; }
html.ad-reduce .ad-outro__in > * { transition: none; opacity: 1; transform: none; }