/* B01 owns its header, responsive rail and motion. No lower-section overrides. */
.site-header{position:sticky;top:0;z-index:20;background:rgba(5,5,6,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--dark-line)}
.header-inner{display:flex;align-items:center;min-height:72px;gap:24px}
.stage-badge{display:grid;place-items:center;min-width:44px;min-height:44px;padding:0;background:none;color:var(--dark-muted);font-size:10px;letter-spacing:.04em}
.header-inner nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.header-inner nav a{padding-block:18px;color:var(--dark-muted);font-size:14px;transition:color .18s}
.header-inner nav a:hover{color:var(--white)}
.header-start{min-height:44px;border-radius:9px}
.menu-toggle{display:none}

/* One film, one message. Text lives in HTML, never in generated footage. */
.hero{padding-top:0;padding-bottom:0}
.hero>.shell{width:100%;max-width:none}
.hero-film{position:relative;isolation:isolate;overflow:hidden;border-radius:0;background:#151519;min-height:520px;height:min(640px,calc(100svh - 160px));display:flex;flex-direction:column;justify-content:space-between}
.hero-film-media{position:absolute;inset:0;z-index:-2}
.hero-film-media img,.hero-film-media video{width:100%;height:100%;object-fit:cover;object-position:72% 55%}
.hero-film-media video{position:absolute;inset:0;opacity:0;transition:opacity .3s}
.hero-film.has-played video{opacity:1}
.hero-film:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(5,5,6,.87),rgba(5,5,6,.68) 38%,rgba(5,5,6,.12) 76%),linear-gradient(0deg,rgba(5,5,6,.86),transparent 40%)}
.hero-film-content{padding:42px max(var(--gutter),calc((100% - 1440px)/2)) 20px}
.hero-signature{display:flex;align-items:center;gap:10px;margin-bottom:34px;font-size:36px;font-weight:600;line-height:1;letter-spacing:-.04em}
.hero-signature img{width:38px;height:38px;object-fit:contain;mix-blend-mode:screen}
.hero-signature-line{font-size:13px;color:#d0cdd6;font-weight:400;letter-spacing:0;margin-left:14px;padding-left:20px;border-left:1px solid #ffffff40}
.hero h1{font-size:clamp(42px,4.5vw,68px);line-height:1.04;letter-spacing:-.048em;max-width:820px}
.hero h1 span{color:#d5ceff}
.hero-film-description{font-size:16px;line-height:1.6;color:#e0dfe5;margin-top:22px;max-width:500px}
.hero-film-action{margin-top:28px}
.hero-cta{min-width:192px;min-height:50px;padding:14px 20px;gap:30px}
.hero-film-action small{display:block;margin-top:12px;color:#dedce4;font-size:12px}
.hero-film-action small>span{margin-inline:4px}
.hero-film-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 max(var(--gutter),calc((100% - 1440px)/2)) 24px}
.hero-shortcuts{display:flex;gap:8px;flex-wrap:wrap}
.hero-shortcuts button{background:#0a0a0b66;color:#e5e3e9;border:1px solid #ffffff30;border-radius:8px;padding:10px 13px;min-height:44px;font-size:12px;display:flex;align-items:center;gap:14px;backdrop-filter:blur(10px)}
.hero-shortcuts button:hover{background:#ffffff20}
.hero-shortcuts button span{color:#d5ceff}
.hero-film-toggle{flex:none;display:grid;place-items:center;width:48px;height:48px;border:1px solid #ffffff80;border-radius:50%;background:#10101499;color:white;font-size:17px;backdrop-filter:blur(10px)}
.hero-film-toggle:hover{background:#705bff}
.hero-models{display:flex;align-items:center;gap:20px;border-bottom:1px solid var(--dark-line);width:min(calc(100% - var(--gutter)*2),var(--shell));min-height:68px;margin:14px auto 0;font-size:13px;color:var(--dark-muted)}
.model-label{white-space:nowrap}
.model-window{min-width:0;flex:1;overflow:hidden;mask-image:linear-gradient(to right,transparent,#000 20px,#000 calc(100% - 20px),transparent);padding-block:8px}
.model-track{display:flex;width:max-content;animation:kai-models 48s linear infinite;animation-play-state:paused}
.model-track[data-moving=true]{animation-play-state:running}
.model-set{display:flex;gap:32px;align-items:center;flex:none;padding-right:32px}
.model-chip{display:flex;align-items:center;gap:9px;flex:none;white-space:nowrap;color:rgba(255,255,255,.8);font-size:13px}
.model-chip img{width:22px;height:22px;object-fit:contain;flex:none}
.hero-models>a{white-space:nowrap;min-height:44px;display:flex;align-items:center;gap:10px;font-size:13px}
.model-motion-toggle{border:0;min-width:44px;min-height:44px;font-size:16px;color:var(--dark-muted)}
.model-motion-toggle:hover{color:var(--white)}
.model-window:hover .model-track,.model-window:focus-within .model-track{animation-play-state:paused}
.hero-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
@keyframes kai-models{from{transform:translateX(0)}to{transform:translateX(-50%)}}

@media(min-width:1600px){.hero-film{height:640px}.hero-film-content{padding-top:48px}.hero-signature{margin-bottom:40px}}
@media(max-width:1190px){
.header-inner{gap:16px}.header-inner nav{gap:20px}.header-inner nav a{font-size:13px}
.hero-film{min-height:490px}.hero-film-content{padding:32px 32px 20px}.hero-signature{margin-bottom:28px;font-size:32px}.hero-film-bottom{padding-left:32px}.hero h1{font-size:clamp(40px,4.7vw,56px)}.hero-film-description{font-size:15px}.hero-shortcuts{gap:6px}.hero-shortcuts button{font-size:11px;padding-inline:10px}
}
@media(max-width:920px){
.stage-badge{margin-right:auto}.header-start{margin-left:auto}.header-inner{gap:14px}
.menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;min-height:44px;min-width:44px;border:0;border-radius:8px}
.menu-toggle span{display:block;width:20px;height:1px;background:var(--white);transition:transform .18s}
.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3px) rotate(-45deg)}
.header-inner nav{display:none;position:absolute;left:0;right:0;top:100%;margin:0;padding:12px var(--gutter) 20px;background:var(--core);border-bottom:1px solid var(--dark-line)}
.header-inner nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:0}.header-inner nav a{font-size:16px;padding:13px 0}
.hero-film{height:570px}.hero-film-content{padding:32px 28px}.hero h1{font-size:44px}.hero-film-description{max-width:400px}.hero-film:before{background:linear-gradient(90deg,#050506dd,#05050699 48%,#05050615),linear-gradient(0deg,#050506bb,transparent 60%)}.hero-shortcuts{max-width:450px}.hero-film-bottom{padding-left:28px}.model-label{display:none}
}
@media(min-width:681px) and (max-width:920px){.hero h1{max-width:370px;font-size:40px}.hero-film-description{max-width:320px;font-size:14px}.hero-film-action{margin-top:22px}}
@media(max-width:680px){
.header-inner{min-height:64px;gap:12px}.header-inner .brand{font-size:22px}.header-inner .brand img{width:28px;height:28px}.stage-badge{display:none}.header-start{font-size:13px;min-height:44px;padding:10px 14px;gap:14px}
.hero{padding-top:12px}.hero>.shell{width:calc(100% - 24px)}
.hero-film{height:auto;min-height:650px;border-radius:18px;justify-content:flex-end}
.hero-film-media{height:330px;bottom:auto}
.hero-film-media img,.hero-film-media video{object-position:85% 50%}
.hero-film:before{background:linear-gradient(0deg,#101012 0%,#101012 46%,#101012e6 53%,#10101200 80%),linear-gradient(0deg,transparent 85%,#05050655)}
.hero-film-content{padding:265px 22px 18px}
.hero-signature{position:absolute;top:24px;left:22px;font-size:29px;gap:8px;margin:0}.hero-signature img{width:30px;height:30px}.hero-signature-line{font-size:11px;margin-left:7px;padding-left:12px}
.hero h1{font-size:clamp(30px,8.2vw,39px);line-height:1.07;letter-spacing:-.046em}
.hero-film-description{font-size:14px;line-height:1.55;margin-top:16px;max-width:350px}
.hero-film-description br{display:none}.hero-film-description br:after{content:" "}
.hero-film-action{margin-top:20px}.hero-cta{width:100%;min-height:50px}
.hero-film-action small{font-size:11px;text-align:center;margin-top:12px;white-space:nowrap}
.hero-film-bottom{padding:0 22px 22px;display:block}
.hero-shortcuts{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.hero-shortcuts button{justify-content:space-between;gap:4px;padding:10px;font-size:11px;background:#ffffff06;border-color:#ffffff21}
.hero-film-toggle{position:absolute;top:208px;right:20px;width:46px;height:46px}
.hero-models{width:100%;gap:8px;min-height:64px;margin-top:4px;padding-inline:8px}.model-chip{font-size:12px;gap:8px}.model-chip img{width:21px;height:21px}.model-set{gap:24px;padding-right:24px}.hero-models>a{font-size:11px;gap:5px}.model-window{mask-image:linear-gradient(to right,transparent,#000 8px,#000 calc(100% - 8px),transparent)}
}
@media(prefers-reduced-motion:reduce){
.model-track{animation:none!important;transform:none!important}.model-set[aria-hidden=true]{display:none}.model-window{overflow-x:auto;mask-image:none;scrollbar-width:none}.model-motion-toggle{display:none}.hero-film-media video,.menu-toggle span{transition:none}
}