@import url("fonts/hanken.css");

:root {
  --ground: #ebebe8;
  --ink: #0d1317;
  --ink-2: #2b3136;
  --mute: #5c6166;
  --hair: #cfd2d4;
  --cobalt: #2437f6;
  --cobalt-ink: #ffffff;
  --cobalt-soft: rgba(36, 55, 246, 0.10);
  --font: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --frame-w: min(100cqw, 1680px, calc(100svh * 1344 / 752));   /* the comp frame never outgrows the screen in either direction */
  --u: calc(var(--frame-w) / 1344);          /* one comp pixel */
  color-scheme: light;
}
* { box-sizing: border-box; }
html { background: var(--ground); scrollbar-color: #b9bdc1 var(--ground); }
body { container-type: inline-size; margin: 0; background: var(--ground); color: var(--ink); font-family: var(--font); font-size: 1.0625rem; font-weight: 450; line-height: 1.55; -webkit-font-smoothing: antialiased; font-variant-numeric: tabular-nums; }
::selection { background: var(--cobalt); color: #fff; }
:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 3px; border-radius: 4px; }
a { color: inherit; text-decoration-color: var(--hair); text-underline-offset: 0.22em; }
a:hover { text-decoration-color: var(--cobalt); }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; line-height: 1.04; text-wrap: balance; }
p { margin: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------------------------------------------------------------- hero: the approved comp frame (1344 x 752), every box in % of it */
.hero {
  position: relative; width: var(--frame-w); margin-inline: auto; height: calc(752 * var(--u)); overflow: hidden;
  --x-wordmark: 3.42%; --y-wordmark: 3.19%; --h-wordmark: 2.93%;
  --x-lang: 91.22%; --y-lang: 3.46%; --w-lang: 5.36%; --h-lang: 2.39%;
  --x-rule: 3.57%; --y-rule: 7.05%; --w-rule: 92.86%;
  --x-h1: 5.65%; --y-h1: 10.11%; --w-h1: 88.84%; --h-h1: 9.84%;
  --x-stage: 30.65%; --y-stage: 21.28%; --w-stage: 37.2%; --h-stage: 46.81%;
  --x-label: 44.49%; --y-label: 69.41%; --w-label: 11.01%; --h-label: 2.66%;
  --x-slider: 30.06%; --y-slider: 72.34%; --w-slider: 40.03%; --h-slider: 4.79%;
  --x-cta: 3.57%; --y-cta: 84.31%; --w-cta: 13.69%; --h-cta: 7.05%;
  --x-div: 18.45%; --y-div: 84.57%; --h-div: 6.65%;
  --x-note: 19.94%; --y-note: 86.44%; --h-note: 2.66%;
  --x-spec: 77.23%; --y-spec: 79.79%; --w-spec: 19.2%;
}
.hero > * { position: absolute; margin: 0; }
.wordmark { left: var(--x-wordmark); top: var(--y-wordmark); height: var(--h-wordmark); display: flex; align-items: center; font-size: max(13px, calc(15 * var(--u))); font-weight: 500; letter-spacing: -0.005em; text-decoration: none; color: var(--ink); white-space: nowrap; }
.lang, .lang-menu { left: var(--x-lang); top: var(--y-lang); height: var(--h-lang); display: flex; align-items: center; }
.lang-menu { left: auto; right: calc(100% - var(--x-lang) - var(--w-lang)); }
.lang button { font: 600 max(11px, calc(10.5 * var(--u))) / 1 var(--font); letter-spacing: 0.08em; color: var(--mute); background: none; border: 0; padding: 0; cursor: pointer; }
.lang button[aria-pressed="true"] { color: var(--cobalt); }
.lang button:hover { color: var(--ink); }
.top-rule { left: var(--x-rule); top: var(--y-rule); width: var(--w-rule); height: max(1px, calc(2 * var(--u))); background: #cdd1d2; }
.headline { left: var(--x-h1); top: var(--y-h1); width: var(--w-h1); height: var(--h-h1); display: flex; align-items: center; justify-content: center; font-size: calc(69 * var(--u)); font-weight: 600; letter-spacing: -0.03em; line-height: 1; white-space: nowrap; }
.stage { left: var(--x-stage); top: var(--y-stage); width: var(--w-stage); height: var(--h-stage); }
.stage img, .stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
/* a soft contact shadow seats the jaw on the ground, like a product shot */
.stage::before { content: ""; position: absolute; left: 16%; right: 18%; bottom: 1%; height: 9%; border-radius: 50%; background: radial-gradient(closest-side, rgba(13, 19, 23, 0.16), rgba(13, 19, 23, 0)); filter: blur(4px); }
.stage canvas { opacity: 0; transition: opacity 500ms var(--ease); cursor: grab; }
.stage canvas:active { cursor: grabbing; }
.stage.live canvas { opacity: 1; }
.stage.live img { opacity: 0; transition: opacity 300ms linear 500ms; }
.advance-label { left: var(--x-label); top: var(--y-label); width: var(--w-label); height: var(--h-label); display: flex; align-items: center; justify-content: center; font-size: max(13px, calc(15 * var(--u))); font-weight: 500; white-space: nowrap; color: var(--ink); }
.advance { left: var(--x-slider); top: var(--y-slider); width: var(--w-slider); height: var(--h-slider); display: grid; grid-template-columns: calc(34 * var(--u)) 1fr calc(34 * var(--u)); align-items: center; gap: calc(23 * var(--u)); }
.advance svg { width: 100%; height: auto; display: block; }
.advance .end-retruded { color: #a3a8ad; }
.advance .end-advanced { color: var(--cobalt); }
.range { -webkit-appearance: none; appearance: none; width: 100%; height: calc(24 * var(--u)); min-height: 24px; background: transparent; margin: 0; cursor: pointer; --p: 60%; }
.range::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(to right, var(--cobalt) 0 var(--p), #c4c8cc var(--p) 100%); border-radius: 2px; }
.range::-moz-range-track { height: 2px; background: #c4c8cc; border-radius: 2px; }
.range::-moz-range-progress { height: 2px; background: var(--cobalt); }
.range::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--cobalt); margin-top: -7px; box-shadow: 0 0 0 0 var(--cobalt-soft); transition: box-shadow 200ms var(--ease); }
.range::-moz-range-thumb { width: 16px; height: 16px; border: 0; border-radius: 50%; background: var(--cobalt); }
.range:hover::-webkit-slider-thumb { box-shadow: 0 0 0 6px var(--cobalt-soft); }
.range:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 3px var(--ground), 0 0 0 5px var(--cobalt); }
.range:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 3px var(--ground), 0 0 0 5px var(--cobalt); }
.range:active::-webkit-slider-thumb { box-shadow: 0 0 0 9px var(--cobalt-soft); }
.range:focus-visible { outline: none; }
.cta { left: var(--x-cta); top: var(--y-cta); width: var(--w-cta); height: var(--h-cta); display: inline-flex; align-items: center; justify-content: center; gap: calc(10 * var(--u)); background: var(--cobalt); color: var(--cobalt-ink); border-radius: calc(4 * var(--u)); text-decoration: none; font-weight: 500; font-size: max(13px, calc(15 * var(--u))); transition: background 160ms var(--ease), transform 160ms var(--ease); }
.cta:hover { background: #1526e0; }
.cta:active { transform: translateY(1px); }
.cta svg { width: calc(21 * var(--u)); height: calc(21 * var(--u)); }
.cta-divider { left: var(--x-div); top: var(--y-div); width: 1px; height: var(--h-div); background: #c9cccf; }
.price-note { left: var(--x-note); top: var(--y-note); height: var(--h-note); display: flex; align-items: center; font-size: max(12px, calc(12.5 * var(--u))); color: #62676c; white-space: nowrap; }
.specs { right: calc(100% - var(--x-spec) - var(--w-spec)); top: var(--y-spec); min-width: var(--w-spec); list-style: none; padding: 0; }
.specs li { height: calc(20 * var(--u)); display: flex; align-items: center; font-size: max(12px, calc(13 * var(--u))); color: #5d6267; white-space: nowrap; }
.specs li + li { margin-top: calc(17 * var(--u)); position: relative; }
.specs li + li::before { content: ""; position: absolute; left: 0; right: 0; top: calc(-9 * var(--u)); height: 1px; background: #c9cccf; }

/* language menu: a quiet text control with a chevron; the native select keeps it accessible and easy on phones */
.lang-menu { gap: 6px; color: var(--mute); cursor: pointer; }
.lang-select { -webkit-appearance: none; appearance: none; border: 0; background: transparent; color: var(--ink); font: 600 max(12px, calc(12 * var(--u))) / 1.2 var(--font); letter-spacing: 0.02em; padding: 6px 2px; cursor: pointer; text-align: end; }
.lang-select:hover { color: var(--cobalt); }
.lang-select:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 3px; border-radius: 4px; }
.lang-menu svg { width: 12px; height: 12px; flex: none; pointer-events: none; }

/* scripts beyond Latin: system faces for CJK and Arabic, no negative tracking (it breaks Arabic joining and crowds ideographs) */
html:lang(zh-Hans) { --font: "Hanken Grotesk", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif; }
html:lang(ja) { --font: "Hanken Grotesk", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif; }
html:lang(ar) { --font: "Hanken Grotesk", "SF Arabic", "Geeza Pro", "Noto Sans Arabic", "Segoe UI", Tahoma, sans-serif; }
html:lang(zh-Hans) *, html:lang(ja) *, html:lang(ar) * { letter-spacing: 0 !important; }
html:lang(ar) body { line-height: 1.75; }
html:lang(zh-Hans) .headline, html:lang(ja) .headline, html:lang(ar) .headline { font-weight: 700; }
/* headings break between words, not inside them: phrases for Japanese, punctuation and spaces for Chinese (with a fallback when a run cannot fit) */
html:lang(ja) :is(h1, h2, h3, .hint1) { word-break: auto-phrase; }
html:lang(zh-Hans) :is(h1, h2, h3) { word-break: keep-all; overflow-wrap: anywhere; text-spacing-trim: trim-start; }
/* right to left: text runs right to left in every block; the hero keeps its composition */
[dir="rtl"] .faq summary, [dir="rtl"] .ask-link { text-align: right; }
[dir="rtl"] .ask-link svg { transform: scaleX(-1); }
[dir="rtl"] .ask-link:hover svg { transform: scaleX(-1) translateX(3px); }
[dir="rtl"] .a ul, [dir="rtl"] .a ol { padding-left: 0; padding-right: 1.15em; }
[dir="rtl"] .refs a, [dir="rtl"] .refs li { direction: ltr; unicode-bidi: isolate; }
[dir="rtl"] .refs ol { direction: ltr; text-align: left; }

/* ---------------------------------------------------------------- sections: the hero's grammar at reading size (hairlines, spec rows, the slider track, one cobalt) */
.wrap { width: calc(var(--frame-w) * 0.9286); margin-inline: auto; }
main > section { padding: clamp(80px, 9vw, 152px) 0 0; }
h2 { font-size: clamp(2.1rem, 3.6vw, 3.4rem); letter-spacing: -0.032em; line-height: 1.02; max-width: 18ch; }
h3 { font-size: 1.125rem; letter-spacing: -0.01em; line-height: 1.25; }
.wrap > h2, .topics-head, .sleep-head, .limits-head { margin-bottom: clamp(36px, 4vw, 64px); }

/* ask: claim stays in view while the exchange scrolls */
.pair { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 7vw, 120px); align-items: start; }
.claim { position: sticky; top: 48px; }
.claim p { margin-top: 24px; color: var(--ink-2); font-size: 1.125rem; max-width: 34rem; }
.claim b, .spec-sheet b, .track b { font-weight: 700; color: var(--ink); }
.seg { display: flex; gap: 28px; border-bottom: 1px solid var(--ink); }
.seg button { font: 600 0.95rem/1 var(--font); color: var(--mute); background: none; border: 0; padding: 14px 0; min-height: 44px; cursor: pointer; position: relative; }
.seg button[aria-selected="true"] { color: var(--ink); }
.seg button[aria-selected="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--cobalt); }
.seg button:hover { color: var(--ink); }
.turn { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--hair); }
.who { font-size: 0.8125rem; font-weight: 600; color: var(--mute); line-height: 1.9; }
.turn.bot .who { color: var(--cobalt); }
.q { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.012em; line-height: 1.4; color: var(--ink); }
.cmd { display: inline-block; font: 600 0.9rem/1 var(--font); color: var(--cobalt); background: var(--cobalt-soft); padding: 7px 12px; border-radius: 999px; letter-spacing: 0.01em; }
.a { color: var(--ink-2); font-size: 1rem; line-height: 1.55; max-width: 62ch; }
.a p + p, .a ul + p, .a p + ul, .a p + ol { margin-top: 0.55em; }
.a ul, .a ol { margin: 0; padding-left: 1.15em; }
.a li + li { margin-top: 0.3em; }
.a li::marker { color: var(--cobalt); }
.a b { color: var(--ink); font-weight: 700; }
.refs ol { font-size: 0.9rem; line-height: 1.5; }
.refs li + li { margin-top: 0.7em; }
.refs a { color: var(--cobalt); text-decoration: none; white-space: nowrap; }
.refs a:hover { text-decoration: underline; }
.caption { font-size: 0.8125rem; color: var(--mute); margin-top: 16px; max-width: 62ch; }

/* proofs: the hero's three spec lines, at display size */
.spec-sheet { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.spec-sheet li { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); padding: clamp(28px, 3vw, 44px) 0; border-bottom: 1px solid var(--hair); align-items: baseline; }
.spec-sheet h3 { font-size: clamp(1.6rem, 2.7vw, 2.5rem); letter-spacing: -0.028em; line-height: 1.08; max-width: 16ch; }
.spec-sheet p { color: var(--ink-2); font-size: 1.0625rem; max-width: 52ch; }
.langs { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 18px; font-weight: 600; font-size: 0.95rem; color: var(--ink); }
.langs span[lang="ar"], .langs span[lang="hi"] { font-family: system-ui, sans-serif; font-weight: 500; }

/* sleep: two renders of the same jaw, retruded and advanced */
.sleep-head, .limits-head { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); align-items: end; }
.sleep-head p, .limits-head p { color: var(--ink-2); font-size: 1.125rem; max-width: 46ch; }
.airway { margin: 0; }
.airway-pair { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(16px, 3vw, 48px); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--hair); padding: 12px 0 22px; }
.airway-pair > div { display: grid; justify-items: center; }
.airway-pair img { width: min(100%, 560px); height: auto; display: block; -webkit-mask-image: linear-gradient(to bottom, #000 82%, transparent 98%); mask-image: linear-gradient(to bottom, #000 82%, transparent 98%); }
.airway-pair span { font-weight: 600; font-size: 0.95rem; color: var(--mute); }
.airway-pair span.on { color: var(--cobalt); }
.airway figcaption { font-size: 0.8125rem; color: var(--mute); margin-top: 14px; }
.sleep-list { list-style: none; padding: 0; margin: clamp(36px, 4vw, 56px) 0 0; display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(32px, 6vw, 96px); }
.sleep-list li { padding: 20px 0; border-top: 1px solid var(--hair); color: var(--ink-2); max-width: 54ch; }
.sleep-list b { color: var(--ink); font-weight: 700; display: block; margin-bottom: 4px; }

/* topics: example questions that open the chat with the question typed */
.topics-head { display: flex; justify-content: space-between; align-items: end; gap: 32px; flex-wrap: wrap; }
.topics-head p { color: var(--mute); font-size: 0.95rem; }
.topic-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: clamp(20px, 2.4vw, 40px); row-gap: 48px; }
.topic { border-top: 1px solid var(--ink); }
.topic h3 { padding: 16px 0 18px; font-size: 1.05rem; }
.topic ul { list-style: none; margin: 0; padding: 0; }
.ask-link { display: flex; justify-content: space-between; gap: 14px; align-items: flex-start; padding: 14px 0; border-top: 1px solid var(--hair); text-decoration: none; color: var(--ink-2); font-size: 1rem; line-height: 1.45; transition: color 160ms var(--ease); }
.ask-link svg { flex: 0 0 16px; width: 16px; height: 16px; margin-top: 3px; color: var(--hair); transition: color 160ms var(--ease), transform 220ms var(--ease); }
.ask-link:hover { color: var(--ink); }
.ask-link:hover svg { color: var(--cobalt); transform: translateX(3px); }

/* how: the slider's track, with three stops */
.track { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(24px, 4vw, 64px); position: relative; }
.track::before { content: ""; position: absolute; left: 0; right: 0; top: 7px; height: 2px; background: linear-gradient(to right, var(--cobalt) 0 66%, #c4c8cc 66% 100%); border-radius: 2px; }
.track li { position: relative; padding-top: 40px; }
.track li::before { content: ""; position: absolute; left: 0; top: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--cobalt); box-shadow: 0 0 0 6px var(--cobalt-soft); }
.track h3 { font-size: 1.3rem; letter-spacing: -0.02em; margin-bottom: 10px; max-width: 18ch; }
.track p { color: var(--ink-2); max-width: 40ch; }
.cmds { margin-top: clamp(56px, 6vw, 88px); border-top: 1px solid var(--ink); padding-top: 22px; }
.cmds dl { margin: 18px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px clamp(24px, 4vw, 64px); }
.cmds dl > div { display: grid; gap: 8px; justify-items: start; }
.cmds dt { font: 600 0.9rem/1 var(--font); color: var(--cobalt); background: var(--cobalt-soft); padding: 7px 12px; border-radius: 999px; }
.cmds dd { margin: 0; color: var(--ink-2); font-size: 0.95rem; }
.note { margin-top: 22px; font-size: 0.8125rem; color: var(--mute); }

/* limits */
.bounds { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(32px, 6vw, 96px); border-top: 1px solid var(--ink); }
.bounds li { padding: 26px 0 30px; border-bottom: 1px solid var(--hair); }
.bounds h3 { font-size: 1.25rem; letter-spacing: -0.018em; margin-bottom: 8px; }
.bounds p { color: var(--ink-2); max-width: 50ch; }

/* price */
.price { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 7vw, 120px); align-items: start; }
.price-lead { margin-top: 22px; color: var(--ink-2); font-size: 1.125rem; max-width: 34rem; }
.price .figure { margin-top: 40px; font-size: clamp(5rem, 10vw, 9rem); font-weight: 600; letter-spacing: -0.05em; line-height: 0.88; color: var(--ink); white-space: nowrap; }
.price .figure small { font-size: 1.05rem; font-weight: 600; letter-spacing: 0; color: var(--mute); margin-left: 12px; }
.price .alt { margin-top: 18px; color: var(--ink-2); font-size: 1.05rem; }
.price .alt b { color: var(--ink); }
.terms { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); align-self: end; }
.terms li { padding: 18px 0; border-bottom: 1px solid var(--hair); font-size: 1.0625rem; color: var(--ink-2); }
.terms b { color: var(--ink); font-weight: 700; }
.btn { display: inline-flex; align-items: center; gap: 10px; background: var(--cobalt); color: #fff; text-decoration: none; padding: 0 22px; height: 54px; border-radius: 4px; font-weight: 500; font-size: 1rem; margin-top: 36px; transition: background 160ms var(--ease), transform 160ms var(--ease); }
.btn:hover { background: #1526e0; }
.btn:active { transform: translateY(1px); }
.btn svg { width: 20px; height: 20px; }

/* faq */
.faq { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 7vw, 120px); align-items: start; padding-bottom: clamp(80px, 9vw, 152px); }
.faq > h2 { position: sticky; top: 48px; }
.faq-list { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--hair); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 0; font-weight: 600; font-size: 1.15rem; letter-spacing: -0.01em; display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: 0 0 12px; height: 12px; background: linear-gradient(var(--ink), var(--ink)) center / 12px 1.5px no-repeat, linear-gradient(var(--ink), var(--ink)) center / 1.5px 12px no-repeat; transition: transform 240ms var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary:hover { color: var(--cobalt); }
.faq details p { padding: 0 0 24px; color: var(--ink-2); max-width: 60ch; }

/* footer */
.foot { border-top: 1px solid var(--hair); padding: 40px 0 56px; color: var(--mute); font-size: 0.875rem; }
.foot .row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot b { color: var(--ink); font-weight: 600; }
.foot nav { display: flex; gap: 24px; flex-wrap: wrap; }
.foot .company { margin-top: 10px; }

/* ---------------------------------------------------------------- tablets: the reading grid folds */
@media (max-width: 1100px) {
  .topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cmds dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------------------------------------------------------------- phones: the comp frame becomes a flow */
@media (max-width: 820px) {
  :root { --u: 1px; --frame-w: 100cqw; }
  .hero { height: auto; width: 100%; display: grid; grid-template-columns: 1fr auto; padding: 18px 16px 44px; }
  .hero > * { position: static; }
  .wordmark { height: auto; font-size: 15px; align-self: center; }
  .lang { width: auto; height: auto; align-self: center; }
  .lang button { font-size: 12px; padding: 0; min-width: 44px; min-height: 44px; }
  .lang { gap: 0; margin-right: -12px; }
  .lang-menu { position: static; height: auto; align-self: center; }
  .lang-select { font-size: 13px; min-height: 44px; }
  .top-rule { grid-column: 1 / -1; width: auto; height: 1px; margin-top: 10px; }
  .headline { grid-column: 1 / -1; width: auto; height: auto; display: block; white-space: normal; text-align: left; font-size: clamp(2.5rem, 11.5vw, 3.6rem); letter-spacing: -0.035em; line-height: 0.98; margin-top: 28px; }
  .stage { grid-column: 1 / -1; position: relative; left: auto; top: auto; width: calc(100% + 32px); margin: 14px -16px 0; height: auto; aspect-ratio: 1000 / 704; }
  .advance-label { grid-column: 1 / -1; width: auto; height: auto; font-size: 15px; margin-top: 2px; }
  .advance { grid-column: 1 / -1; width: 100%; height: auto; grid-template-columns: 28px 1fr 28px; gap: 14px; margin-top: 6px; }
  .range { height: 44px; }
  .range::-webkit-slider-thumb { width: 24px; height: 24px; margin-top: -11px; }
  .range::-moz-range-thumb { width: 24px; height: 24px; }
  .cta { grid-column: 1 / -1; width: 100%; height: 56px; font-size: 16px; gap: 10px; border-radius: 4px; margin-top: 30px; }
  .cta svg { width: 20px; height: 20px; }
  .cta-divider { display: none; }
  .price-note { grid-column: 1 / -1; height: auto; justify-content: center; font-size: 14px; margin-top: 12px; white-space: normal; }
  .specs { grid-column: 1 / -1; width: 100%; min-width: 0; margin-top: 30px; border-top: 1px solid #c9cccf; }
  .specs li { height: auto; font-size: 14px; padding: 13px 0; white-space: normal; border-bottom: 1px solid #c9cccf; }
  .specs li + li { margin-top: 0; }
  .specs li + li::before { display: none; }

  .wrap { width: auto; margin-inline: 16px; }
  main > section { padding-top: 72px; }
  h2 { font-size: clamp(2rem, 9vw, 2.6rem); }
  .pair, .price, .faq, .sleep-head, .limits-head { grid-template-columns: 1fr; gap: 28px; }
  .claim, .faq > h2 { position: static; }
  .turn { grid-template-columns: 1fr; gap: 6px; padding: 18px 0; }
  .who { line-height: 1.4; }
  .q { font-size: 1.1rem; }
  .refs a { white-space: normal; word-break: break-all; }
  .spec-sheet li { grid-template-columns: 1fr; gap: 12px; padding: 26px 0; }
  .spec-sheet h3 { font-size: 1.65rem; }
  .airway-pair { gap: 8px; }
  .airway-pair span { font-size: 0.85rem; }
  .sleep-list, .bounds { grid-template-columns: 1fr; }
  .topic-grid { grid-template-columns: 1fr; row-gap: 36px; }
  .track { grid-template-columns: 1fr; gap: 30px; padding-left: 34px; }
  .track::before { left: 7px; right: auto; top: 6px; bottom: 6px; width: 2px; height: auto; background: linear-gradient(to bottom, var(--cobalt) 0 66%, #c4c8cc 66% 100%); }
  .track li { padding-top: 0; }
  .track li::before { left: -34px; top: 3px; }
  .cmds dl { grid-template-columns: 1fr; gap: 0; }
  .cmds dl > div { grid-template-columns: 7.5rem minmax(0, 1fr); align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--hair); }
  .price .figure { font-size: clamp(4.5rem, 24vw, 6.5rem); }
  .btn { width: 100%; justify-content: center; }
  .faq { padding-bottom: 80px; }
  .faq summary { font-size: 1.05rem; padding: 18px 0; }
}

/* reduced motion: no transitions anywhere (the script already skips the intro, the sway and the card swap) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}