:root{--paper:#faf9f6;--ink:#151c21;--muted:#687076;--line:#dedcd6;--yellow:#ffeb8b;--player-ink:#0b0f10d6;--page-width:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.5}a{color:inherit;text-underline-offset:.18em}a:hover{text-decoration-thickness:2px}button{font:inherit}.container{width:min(calc(100% - 64px), var(--page-width));margin-inline:auto}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:10;color:var(--paper);background:var(--ink);padding:10px 14px;position:fixed;top:12px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}:focus-visible{outline:3px solid var(--ink);outline-offset:4px}.site-header{border-bottom:1px solid var(--line)}.header-inner{justify-content:space-between;align-items:center;gap:24px;min-height:104px;display:flex}.brand{letter-spacing:-.045em;align-items:center;gap:16px;font-size:29px;font-weight:700;text-decoration:none;display:inline-flex}.brand img{border-radius:16px;width:60px;height:60px}.site-nav{align-items:center;gap:38px;display:flex}.site-nav a{font-size:16px;text-decoration:none}.site-nav a:hover{text-decoration:underline}.site-nav .nav-cta{border:1px solid var(--ink);border-radius:4px;padding:12px 20px}.site-nav .nav-cta:hover{background:var(--ink);color:var(--paper);text-decoration:none}.hero{padding-top:92px;padding-bottom:62px}.eyebrow{letter-spacing:.12em;text-transform:uppercase;margin:0 0 22px;font-size:13px;font-weight:700}.hero h1{letter-spacing:-.065em;max-width:760px;margin:0;font-size:clamp(48px,6.2vw,86px);line-height:1.04}.hero-copy{max-width:620px;color:var(--muted);letter-spacing:-.035em;margin:26px 0 0;font-size:clamp(19px,2vw,23px);line-height:1.45}.hero-actions{align-items:center;gap:26px;margin-top:36px;display:flex}.button{border:1px solid var(--ink);border-radius:4px;padding:16px 22px;text-decoration:none;display:inline-block}.button-primary{background:var(--ink);color:#fff}.button-primary:hover{background:#30383e}.quiet-link{color:var(--muted);text-decoration:none}.quiet-link:hover{color:var(--ink);text-decoration:underline}.demo-section{padding-bottom:64px}.demo-player{background:#111;border:1px solid #c9c6bf;border-radius:9px;margin:0;overflow:hidden}.demo-topbar{background:var(--paper);height:81px;color:var(--ink);align-items:center;padding:16px 22px;display:flex}.demo-topbar strong{font-size:16px;display:block}.demo-topbar small{color:var(--muted);margin-top:2px;display:block}.demo-stage{min-height:620px;position:relative;overflow:hidden}.demo-stage>img{object-fit:cover;object-position:78% center;width:100%;height:100%;position:absolute;inset:0}.demo-stage:after{content:"";z-index:1;pointer-events:none;background:linear-gradient(#0000,#0000008c);height:50%;position:absolute;inset:auto 0 0}.word-anchor{white-space:nowrap;display:inline-block;position:relative}.word-explanation{z-index:4;border:1px solid var(--line);width:232px;color:var(--ink);text-align:left;white-space:normal;background:#fffefa;border-radius:7px;padding:14px 16px;font-size:13px;line-height:1.5;position:absolute;bottom:calc(100% + 12px);left:50%;transform:translate(-50%);box-shadow:0 3px 12px #0000001f}.word-explanation:after{content:"";border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fffefa;width:8px;height:8px;position:absolute;bottom:-5px;left:50%;transform:translate(-50%)rotate(45deg)}.word-explanation strong{font-size:17px;display:block}.word-explanation>span{display:block}.word-meaning{border-top:1px solid var(--line);margin-top:10px;padding-top:10px}.word-example{margin-top:10px}.word-translation{color:var(--muted);display:block}.subtitle-stack{z-index:3;text-align:center;color:#fff;position:absolute;bottom:73px;left:40px;right:40px}.subtitle-stack p{background:var(--player-ink);border-radius:3px;margin:4px auto;padding:4px 10px;font-size:clamp(19px,2.4vw,28px);line-height:1.25;display:table}.subtitle-stack p+p{color:var(--yellow)}.subtitle-stack button{color:inherit;border:0;border-bottom:2px solid var(--yellow);cursor:pointer;background:0 0;padding:0}.subtitle-stack button:focus-visible{outline-color:var(--yellow);outline-offset:3px}.chat-demo{grid-template-columns:minmax(0,1fr) minmax(0,400px);grid-template-areas:"intro capture";align-items:start;gap:30px 64px;max-width:840px;padding:36px 0 64px;display:grid}.chat-demo__intro{grid-area:intro;max-width:400px}.chat-demo__intro h2{letter-spacing:-.055em;max-width:12ch;margin:0;font-size:clamp(30px,4vw,40px);line-height:1.08}.chat-demo__intro p{color:var(--muted);margin:18px 0 0;font-size:19px;line-height:1.5}.chat-demo__capture{grid-area:capture;width:100%;margin:0}.chat-preview{color:#f2f2f2;background:#0f1115;border:1px solid #272c35;border-radius:14px;overflow:hidden}.chat-preview__header{border-bottom:1px solid #292e37;padding:20px 22px 16px}.chat-preview__header>span{font-size:16px;font-weight:650}.chat-preview__header p{color:#b8bcc6;margin:8px 0 0;font-size:13px;line-height:1.5}.chat-preview__messages{padding:20px;font-size:16px;line-height:1.55}.chat-preview__question{color:#f2f2f2;background:#11372d;border:1px solid #258060;border-radius:12px 12px 3px;margin:0 0 16px 28px;padding:12px 15px}.chat-preview__answer{background:#1a1d24;border-radius:12px 12px 12px 3px;padding:15px}.chat-preview__answer p{margin:0}.chat-preview__answer p+p{margin-top:13px}.chat-preview__answer .chat-preview__translation{color:#b8bcc6;margin-top:3px;font-size:14px}.capture-caption{color:var(--muted);margin-top:12px;font-size:14px}.features{grid-template-columns:repeat(2,minmax(0,1fr));gap:64px;max-width:840px;margin-bottom:52px;display:grid}.features article{border-top:1px solid var(--line);padding:22px 0}.features h3{letter-spacing:-.035em;margin:0;font-size:23px;line-height:1.2}.features p{color:var(--muted);margin:8px 0 0}.reading-section{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) 341px;gap:64px;max-width:840px;padding:48px 0;display:grid}.reading-section h2{letter-spacing:-.055em;margin:0;font-size:clamp(30px,4vw,40px);line-height:1.08}.reading-section p{color:var(--muted);margin:0 0 18px;font-size:19px;line-height:1.5}.access-section h2{letter-spacing:-.05em;margin:0;font-size:clamp(26px,3vw,32px);line-height:1.15}.access-section{border-bottom:1px solid var(--line);padding:100px 0}.access-inner{max-width:760px;margin-left:max(32px, calc((100vw - var(--page-width)) / 2))}.access-inner>p{max-width:610px;color:var(--muted);margin:18px 0 0;font-size:19px}.site-footer{padding:36px 0}.footer-inner{justify-content:space-between;gap:30px;display:flex}.footer-brand{letter-spacing:-.04em;font-size:20px;font-weight:700;text-decoration:none}.site-footer nav{align-items:flex-start;gap:32px;display:flex}.site-footer nav a{text-decoration:none}.site-footer nav a:hover{text-decoration:underline}.document{padding:76px 0 100px}.page-intro{border-bottom:1px solid var(--line);max-width:760px;margin-bottom:36px;padding-bottom:42px}.page-intro h1{letter-spacing:-.06em;margin:0;font-size:clamp(42px,5vw,64px);line-height:1.06}.document-intro{color:#555b60;max-width:600px;margin:20px 0 0;font-size:20px;line-height:1.6}.document-date{color:#62686d;margin-top:20px;font-size:13px}.prose{max-width:760px;font-size:17px;line-height:1.75}.prose h2{letter-spacing:-.04em;margin:48px 0 14px;font-size:26px;line-height:1.15}.prose p,.prose li{color:#343b3f}.back-link{color:inherit;text-underline-offset:4px;font-size:14px}.prose p,.prose ol{margin:0 0 18px}.prose ol{padding-left:23px}.prose li{margin:7px 0;padding-left:4px}.prose a{color:inherit;text-underline-offset:4px;overflow-wrap:anywhere;text-decoration:underline}@media (width<=820px){.reading-section{grid-template-columns:1fr;gap:22px;padding:36px 0}.chat-demo{grid-template-columns:1fr;grid-template-areas:"intro""capture";gap:32px;padding:12px 0 52px}.chat-demo__intro{max-width:460px;padding-top:0}.chat-demo__intro h2{max-width:none}.chat-demo__capture{justify-self:center;max-width:460px}.features{grid-template-columns:1fr;gap:0}}@media (width<=700px){.container{width:min(calc(100% - 36px), var(--page-width))}.header-inner{flex-wrap:wrap;min-height:81px;padding-block:12px}.brand{gap:10px;font-size:23px}.brand img{border-radius:12px;width:45px;height:45px}.site-nav{gap:16px}.site-nav a{font-size:14px}.site-nav a:first-child{display:none}.site-nav .nav-cta{padding:9px 11px}.hero{padding-top:61px;padding-bottom:43px}.hero h1{font-size:clamp(43px,12vw,59px)}.hero-copy{font-size:19px}.demo-stage{min-height:490px}.word-explanation{width:220px}.subtitle-stack{bottom:61px;left:12px;right:12px}.subtitle-stack p{font-size:18px}.access-section{padding:70px 0}.access-inner{width:min(calc(100% - 36px), var(--page-width));margin-inline:auto}.document{padding-top:36px;padding-bottom:64px}.document-intro{font-size:18px}.prose{font-size:16px}.prose h2{font-size:23px}.footer-inner{display:block}.site-footer nav{flex-wrap:wrap;gap:12px 23px;margin-top:29px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}