:root{--ink:#183d35;--orange:#ef704c;--muted:#68766e;--line:#dbe3df;--paper:#fff;--ease:cubic-bezier(.2,.7,.2,1)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:auto}button,input,textarea{font:inherit}a{color:inherit;text-underline-offset:5px}button,a{touch-action:manipulation}.wrap{width:min(1200px,calc(100% - 80px));margin-inline:auto}header{height:100px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:700;letter-spacing:4px;font-size:24px}.brand img{object-fit:contain}nav{display:flex;gap:30px;align-items:center;font-size:13px}nav a{text-decoration:none}.nav-button{background:var(--ink);color:white;border-radius:100px;padding:15px 24px}.hero{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding-block:38px 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@media(max-width:1000px){.wrap{width:calc(100% - 50px)}.hero{gap:30px}h1{font-size:76px}.hero-visual{height:510px}.hero-actions{gap:17px}.screen-card{padding:23px 18px}.screen-title h3{font-size:21px}.connection{gap:45px}.signup{gap:40px;padding:40px}.section-heading{gap:30px}.case-file,.step-result{padding:28px}.studio-bottom{gap:12px}}
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@media(max-width:360px){h1{font-size:56px}.hero-actions{gap:13px}.quiet-link{font-size:10px}.brand{font-size:18px}.screen-card{flex-basis:94%}.signup{padding:25px 18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.button:hover{transform:none}}

.swipe-hint{display:none}@media(max-width:700px){h1{font-size:54px;letter-spacing:-3px}.swipe-hint{display:block;font-weight:600;margin-bottom:5px}}@media(max-width:360px){h1{font-size:48px}}

@media(max-width:700px){.analysis-studio[data-step="1"] .case-file,.analysis-studio[data-step="2"] .case-file{display:none}}

.gallery-controls{display:none}@media(max-width:700px){.gallery-controls{display:flex;gap:8px;margin-bottom:18px}.gallery-controls button{border:1px solid var(--line);border-radius:30px;padding:11px 14px;background:white;color:var(--ink);font-size:12px;cursor:pointer}.gallery-controls button:hover,.gallery-controls button:focus-visible{background:#e7eee9}}


/* Video and its illustrative result belong together, on the first screen. */
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@media(max-width:900px) and (min-width:701px){.hero-product{gap:30px}.hero-product h1{font-size:64px;letter-spacing:-3px}.hero-film{height:280px}.answer-row{grid-template-columns:85px 1fr;gap:8px}.example-answer{padding:16px}}
@media(max-width:700px){.hero-product{display:flex;flex-direction:column;gap:24px;padding-block:12px 28px;align-items:stretch}.hero-product .hero-copy{display:contents}.hero-product .eyebrow{order:0;margin:0}.hero-product h1{order:1;font-size:49px;letter-spacing:-2.8px;margin:0;line-height:1.02}.hero-product h1 br:first-child{display:none}.hero-product .intro{order:2;font-size:14px;line-height:1.6;margin:0}.hero-example{order:3}.hero-product .hero-actions{order:4;margin:0}.hero-product .availability{order:5;margin:0;font-size:10px}.hero-film{height:285px}.hero-film video{object-position:50% 42%}.example-answer{padding:16px 17px}.answer-heading strong{font-size:13px}.answer-row{grid-template-columns:83px 1fr;gap:10px}.answer-row p{font-size:12px}.answer-row>span{font-size:10px}.owner-question{font-size:12px}.hero-play{justify-content:flex-end;align-items:flex-end;padding:16px}.hero-play span{width:42px;height:42px;font-size:17px}.hero-play strong{font-size:11px}.film-label{font-size:7px;top:12px;left:12px}.app-section{padding-top:45px}}

.hero-play{align-items:flex-end;justify-content:flex-end;padding:18px}.hero-play strong{font-size:12px}@media(max-width:700px){.hero-play{padding:14px}}

/* An embedded, silent walkthrough. The complete answer stays in place. */
.hero-product{grid-template-columns:.74fr 1.26fr;gap:38px}.hero-product h1{font-size:clamp(58px,5.5vw,76px);letter-spacing:-4px}.hero-product .intro{font-size:16px}.hero-example{display:grid;grid-template-columns:.94fr 1fr;align-items:stretch}.hero-film{height:505px;border-radius:20px 0 0 20px}.hero-film video{object-position:50% 42%}.example-answer{border-top:1px solid #e0e7dc;border-left:0;border-radius:0 20px 20px 0;padding:22px 20px;display:flex;flex-direction:column;justify-content:center}.answer-heading{flex-wrap:wrap;gap:8px}.answer-heading strong{font-size:13px;flex:1}.answer-heading>span{font-size:7px}.answer-row{display:block;padding:10px;margin:1px -10px;border-radius:9px;transition:background .3s}.answer-row>span{display:block;margin-bottom:5px;font-size:10px}.answer-row p{font-size:12px;line-height:1.6}.answer-row.observed-now{background:#e3ead9}.answer-row.next.observed-now{background:#f5e3d0}.answer-note{margin-top:14px;font-size:9px}.player-note{grid-column:1/-1}.behavior-overlay{position:absolute;inset:0;pointer-events:none}.head-marker{position:absolute;border-radius:15px;background:#d7ffce06;box-shadow:0 0 24px #c7f1b917;transition:opacity .2s}.head-marker[hidden]{display:none}.head-marker i{position:absolute;width:24px;height:24px;border:2px solid #e4ffbf;filter:drop-shadow(0 1px 2px #183d3566)}.head-marker i:nth-child(1){top:0;left:0;border-right:0;border-bottom:0;border-radius:12px 0 0}.head-marker i:nth-child(2){top:0;right:0;border-left:0;border-bottom:0;border-radius:0 12px 0 0}.head-marker i:nth-child(3){bottom:0;left:0;border-right:0;border-top:0;border-radius:0 0 0 12px}.head-marker i:nth-child(4){bottom:0;right:0;border-left:0;border-top:0;border-radius:0 0 12px}.head-marker>span{position:absolute;left:9px;top:-9px;background:#193e33e8;color:#efffdf;font-size:7px;letter-spacing:1px;padding:5px 7px;border-radius:4px}.behavior-caption{position:absolute;left:14px;right:14px;bottom:58px;display:flex;align-items:center;gap:8px;padding:12px;background:#173d32e8;border:1px solid #e2f4d933;color:#fff;border-radius:11px;font-size:11px;line-height:1.4;min-height:54px;backdrop-filter:blur(8px)}.observation-dot{width:6px;height:6px;flex:0 0 6px;border-radius:50%;background:#c9ed9c}.video-timeline{position:absolute;left:16px;right:16px;height:3px;bottom:47px;background:#fff5;border-radius:4px;overflow:hidden}.video-timeline i{display:block;width:100%;height:100%;background:#d9efa7;transform:scaleX(0);transform-origin:left}.motion-toggle{position:absolute;bottom:10px;right:14px;min-height:30px;border:1px solid #ffffff70;border-radius:20px;background:#173d32d9;color:#fff;padding:6px 13px;font-size:10px;cursor:pointer}.motion-toggle:focus-visible{outline:3px solid var(--orange);outline-offset:2px}.film-label{font-size:7px;left:13px;top:13px;padding:8px 10px}
@media(max-width:1050px) and (min-width:701px){.hero-product{grid-template-columns:.8fr 1.2fr;gap:28px}.hero-product h1{font-size:58px}.hero-example{grid-template-columns:1fr}.hero-film{height:320px;border-radius:20px 20px 0 0}.example-answer{border-left:1px solid #e0e7dc;border-top:0;border-radius:0 0 20px 20px;padding:17px 20px}.answer-row{display:grid;grid-template-columns:83px 1fr;gap:10px}.answer-row>span{margin:0}.head-marker>span{display:none}}
@media(max-width:700px){.hero-product{gap:20px}.hero-product h1{font-size:49px;letter-spacing:-2.8px}.hero-product .intro{font-size:14px}.hero-example{display:block}.hero-film{height:310px;border-radius:20px 20px 0 0}.example-answer{border-left:1px solid #e0e7dc;border-top:0;border-radius:0 0 20px 20px;padding:17px}.answer-row{display:grid;grid-template-columns:80px 1fr;gap:10px;margin:0 -8px;padding:9px 8px}.answer-row>span{margin:0}.answer-heading strong{font-size:14px}.behavior-caption{bottom:54px;min-height:40px;font-size:11px;padding:10px 12px}.video-timeline{bottom:44px}.motion-toggle{bottom:8px}.film-label{font-size:7px}.player-note{margin-top:10px}}

/* Source-frame tracking and cumulative observations. */
.head-marker{left:0;top:0;will-change:transform,width,height;background:none;box-shadow:none;transition:none}.head-marker>span{top:6px;left:8px;font-size:6px;padding:4px 6px}.head-marker i{width:18px;height:18px;border-color:#eaffce}.muzzle-focus{position:absolute;width:38px;height:38px;border:1.5px solid #fff5b2;border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 5px #fff6b21f;pointer-events:none}.muzzle-focus[hidden]{display:none}.muzzle-focus span{position:absolute;top:43px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:9px;background:#173d32eb;color:#fff5b2;padding:6px 9px;border-radius:6px}.behavior-findings{list-style:none;padding:0;margin:0;min-height:240px}.behavior-findings li{display:flex;gap:10px;padding:12px 10px;margin:0 -10px;border-radius:10px;min-height:80px;visibility:visible;transition:background .35s}.behavior-findings li.revealed{visibility:visible}.behavior-findings li.observed-now{background:#e3ead9}.behavior-findings time{flex:0 0 43px;font-size:9px;font-variant-numeric:tabular-nums;color:#61715c;padding-top:2px}.behavior-findings strong{display:block;font-size:12px;line-height:1.4}.behavior-findings p{font-size:11px;line-height:1.55;margin:5px 0 0}.behavior-context{border-top:1px solid #d9e2d2;margin-top:12px;padding-top:13px}.behavior-context strong{font-size:11px}.behavior-context p{font-size:11px;line-height:1.6;margin:5px 0 0}.example-answer{justify-content:flex-start;padding-top:24px}.hero-film{height:550px}.answer-note{font-size:8px;margin-top:12px}.owner-question{margin-bottom:4px}.behavior-caption{font-variant-numeric:tabular-nums}.hero-example{align-items:stretch}
@media(max-width:1050px) and (min-width:701px){.hero-film{height:320px}.behavior-findings{min-height:0}.behavior-findings li{min-height:65px}.behavior-findings strong{font-size:13px}.behavior-findings p{font-size:12px}}
@media(max-width:700px){.hero-film{height:310px}.behavior-findings{min-height:240px}.behavior-findings li{min-height:80px}.behavior-findings strong{font-size:13px}.behavior-findings p{font-size:12px}.behavior-context p{font-size:12px}.answer-note{font-size:9px}.head-marker>span{font-size:6px}.muzzle-focus{width:32px;height:32px}.muzzle-focus span{top:37px}}

.behavior-overlay{z-index:2}.hero-film .film-label,.hero-film .motion-toggle{z-index:3}
.behavior-overlay[data-phase="complete"] .behavior-caption{border-color:#d9efa7aa}.behavior-overlay[data-phase="complete"] .observation-dot{animation:none;background:#d9efa7}

/* Final readability and interaction pass. */
.demo-playing .behavior-findings li:not(.revealed){visibility:hidden}
.hero-product h1{font-size:clamp(58px,5.1vw,70px)}
.hero-copy,.example-answer,.screen-card{min-width:0}
.answer-note,.player-note,.screen-caption,.credits{font-size:11px;line-height:1.65}
.behavior-findings p,.behavior-context p{font-size:13px;line-height:1.6}
.behavior-findings strong,.behavior-context strong{font-size:13px}
.behavior-findings time{font-size:10px}
.behavior-findings li{min-height:87px}
.example-answer{padding:22px}
.hero-film{height:auto;min-height:550px}
.screen-card>p,.connection-row p{font-size:14px;line-height:1.7}
.screen-title{min-height:115px}
.connection-row strong{font-size:13px}
.motion-toggle{min-height:44px;min-width:76px;font-size:12px;bottom:8px}
.behavior-caption{bottom:69px}.video-timeline{bottom:60px}
input:not([type=radio]),textarea{font-size:16px}
.form-note,.platform-note,.privacy-link{font-size:12px}
.form-note a,.credits a{text-decoration-thickness:1px}
.platform-note{min-height:58px}
.gallery-controls button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:white}
.gallery-controls button{min-height:44px}
.screen-zoom{display:block;border:0;padding:0;width:100%;background:transparent;cursor:zoom-in;border-radius:28px}
.screen-zoom:focus-visible{outline-offset:-5px}
.request-preview{border-top:1px solid #d8bdab;margin-top:20px;padding-top:20px}
.request-preview[hidden]{display:none}
.request-preview h3{font-size:19px;margin:0 0 14px}
.request-preview>p,.request-preview>strong{font-size:13px;line-height:1.6}
.request-preview pre{font:14px/1.7 Arial,sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;padding:18px;background:#fffaf6;border-radius:12px;border:1px solid #d8bdab}
.dialog-open{overflow:hidden}
#screen-dialog{border:1px solid var(--line);border-radius:20px;padding:0;width:min(490px,calc(100% - 32px));max-height:90dvh;background:#f6f7f2;color:var(--ink)}
#screen-dialog::backdrop{background:#10251ed9;backdrop-filter:blur(6px)}
.dialog-heading{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;background:#f6f7f2;border-bottom:1px solid var(--line);z-index:1}
.dialog-heading h2{font-size:19px;letter-spacing:-.4px}
.dialog-heading button{background:white;border:1px solid var(--line);border-radius:24px;padding:10px 16px;min-height:44px;font-size:13px;cursor:pointer}
#screen-detail{display:block;width:100%;height:auto}
@media(min-width:701px) and (max-width:1050px){.hero-product h1{font-size:clamp(42px,5.2vw,54px);letter-spacing:-2.7px}.hero-film{height:320px;min-height:0}.hero-example{align-self:start}}
@media(max-width:700px){.hero-product h1{font-size:49px;letter-spacing:-2.8px}.hero-film{height:310px;min-height:0}.example-answer{padding:20px 18px}.screen-title{min-height:108px}.hero-product .availability{font-size:11px}.signup h2{font-size:32px}.connection-row{grid-template-columns:105px 1fr}.privacy-link{display:inline-block;padding-block:10px}.screen-card{flex-basis:90%}.screen-caption{margin-top:12px}.platform-note{min-height:76px}}
@media(max-width:360px){.hero-product h1{font-size:42px}.hero-actions .button{padding-inline:16px}.signup h2{font-size:29px}.device{max-width:100%}.gallery-controls{gap:5px}.gallery-controls button{padding-inline:11px}}
@media(min-width:701px) and (max-width:1050px){
.hero-product{grid-template-columns:1fr;gap:30px;align-items:start}
.hero-copy{display:grid;grid-template-columns:1fr 1fr;gap:18px 30px}
.hero-product .eyebrow{grid-column:1/-1;margin:0}
.hero-product h1{grid-column:1;grid-row:2/4;margin:0}
.hero-product .intro{grid-column:2;margin:0}
.hero-product .hero-actions{grid-column:2;margin:0;gap:16px}
.hero-product .availability{grid-column:1/-1;margin:0}
.hero-example{grid-template-columns:.94fr 1fr;width:100%}
.hero-film{height:auto;min-height:550px;border-radius:20px 0 0 20px}
.example-answer{border:1px solid #e0e7dc;border-left:0;border-radius:0 20px 20px 0}
}
.hero-film video{position:absolute;inset:0}
/* Five-language navigation and copy that can grow without clipping. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
header.wrap{gap:24px}header nav{margin-left:auto;gap:22px}
.language-picker{flex:0 0 auto}
.language-picker select{font:600 12px/1.4 Arial,sans-serif;color:var(--ink);background:#f5f7f3;border:1px solid var(--line);border-radius:24px;min-height:44px;width:144px;padding:10px 12px;cursor:pointer}
h1,h2,h3{overflow-wrap:break-word}
.screen-title{min-height:130px}.answer-heading strong{line-height:1.4}.behavior-caption{min-height:54px}.screen-card>p{overflow-wrap:break-word}
html[lang="ru"] .hero-product h1{font-size:clamp(48px,4.7vw,62px);letter-spacing:-2.7px}
html[lang="ru"] h2{letter-spacing:-1.7px}
@media(min-width:701px) and (max-width:1050px){header.wrap{flex-wrap:wrap;height:auto;padding-block:22px;gap:16px}header nav{order:3;width:100%;justify-content:flex-end}header .language-picker{margin-left:auto}html[lang="ru"] .hero-product h1{font-size:42px}.screen-title{min-height:150px}}
@media(max-width:700px){header.wrap{height:auto;min-height:80px;padding-block:18px;flex-wrap:wrap;gap:12px}.language-picker{margin-left:auto}.language-picker select{width:140px}header nav{order:3;width:100%;justify-content:flex-end;margin:0}header nav .nav-button{font-size:12px;min-height:44px;display:inline-flex;align-items:center}.brand{font-size:19px;letter-spacing:2.5px;gap:8px}.screen-title{min-height:130px}.screen-caption{overflow-wrap:anywhere}.gallery-controls{flex-wrap:wrap}.hero-product h1{font-size:46px}html[lang="ru"] .hero-product h1{font-size:40px;letter-spacing:-1.8px}.platform-explanation{grid-template-columns:65px 1fr}.hero-actions .quiet-link{font-size:12px}}
@media(max-width:360px){.brand{font-size:17px;gap:6px;letter-spacing:2px}.brand img{width:30px;height:30px}.language-picker select{width:133px}.hero-product h1{font-size:40px}html[lang="ru"] .hero-product h1{font-size:36px}.hero-product .hero-actions{gap:15px}.hero-actions .quiet-link{font-size:11px}.gallery-controls button{font-size:11px}}

/* Keep native keyboard and mobile selection, with a compact closed label. */
.language-picker{position:relative;display:inline-flex;align-items:center;justify-content:center;width:68px;height:44px;border:1px solid var(--line);border-radius:24px;background:#f5f7f3;flex:0 0 68px}
.language-picker .language-code{font-size:12px;font-weight:700;letter-spacing:.6px;padding-right:13px;pointer-events:none}
.language-picker::after{content:'';position:absolute;right:13px;top:17px;width:6px;height:6px;border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);transform:rotate(45deg);pointer-events:none}
.language-picker select{position:absolute;inset:0;width:100%;height:100%;min-height:44px;opacity:0;margin:0;padding:0;cursor:pointer}
.language-picker:has(select:focus-visible){outline:3px solid var(--orange);outline-offset:4px}
.language-picker:hover{background:#eaf0e9}

/* Readability: native font rendering, stronger secondary text, legible labels. */
:root{--muted:#4f6258}
.eyebrow,.hero .eyebrow,.film-label,.answer-heading>span,.screen-title>span,.promise span{font-size:12px;letter-spacing:1px}
.film-label{background:#fffef2;color:#183d35;line-height:1.4;max-width:calc(100% - 26px)}
.answer-heading>span{color:#4f6258;letter-spacing:.5px}
.availability,.hero-product .availability,.answer-note,.player-note,.screen-caption,.credits,.privacy summary,.footer-top>a:last-child{font-size:12px;line-height:1.7}
.answer-note,.owner-question,.behavior-findings time{color:#4f6258}
.behavior-findings time{font-size:12px;flex-basis:49px}
.behavior-findings p,.behavior-context p,.behavior-findings strong,.behavior-context strong{font-size:14px;line-height:1.6}
.behavior-caption{font-size:13px;line-height:1.5;background:#173d32;backdrop-filter:none}
.head-marker>span{font-size:12px;line-height:1.4;letter-spacing:.4px;background:#193e33;padding:4px 7px}
.muzzle-focus span{font-size:12px;line-height:1.4;background:#173d32}
.platform-explanation,.platform-explanation span,.form-note,.platform-note,.privacy-link{font-size:13px;line-height:1.7}
.device{width:min(100%,250px)}
#screen-dialog{width:min(620px,calc(100% - 32px))}
@media(max-width:700px){.hero-actions .quiet-link{font-size:12px}.gallery-controls button{font-size:12px}.platform-explanation{grid-template-columns:65px 1fr}.answer-heading{gap:8px}.answer-heading strong{flex-basis:190px}.promise span{font-size:12px}.eyebrow,.hero .eyebrow{letter-spacing:.8px}}
.hero-product h1{letter-spacing:-.035em}
html[lang="ru"] .hero-product h1{letter-spacing:-.02em}
h2,html[lang="ru"] h2{letter-spacing:-.025em}