:root{color-scheme:light;--ink: #1b1d21;--muted: #616773;--line: #d9dde4;--paper: #f7f8fa;--panel: #ffffff;--accent: #2997d8;--accent-dark: #12608f;--blue: #65c7f2}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:var(--paper)}a{color:inherit;text-decoration:none}button{font:inherit}.topbar{padding:16px clamp(20px,5vw,64px);border-bottom:1px solid var(--line);background:#f7f8faeb;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);position:sticky;top:0;z-index:10}.topbar-inner{width:min(100%,1120px);margin:0 auto;display:flex;align-items:center;justify-content:space-between}.brand,nav{display:flex;align-items:center;gap:18px;font-size:16px;font-weight:650}.brand-mark{width:18px;height:18px;border-radius:50%;background:radial-gradient(circle at 50% 50%,#ffffff 0 20%,transparent 21%),conic-gradient(from 30deg,var(--accent),var(--blue),#111827,var(--accent));box-shadow:0 0 0 1px #0000001a}nav a{color:var(--muted)}.language-button{min-width:46px;min-height:36px;padding:0 10px;border:1px solid var(--line);border-radius:8px;color:var(--accent-dark);background:var(--panel);cursor:pointer}main{overflow:hidden}.section-inner{width:min(100%,1120px);margin:0 auto;padding-left:clamp(20px,4vw,40px);padding-right:clamp(20px,4vw,40px)}.hero{min-height:calc(100svh - 76px);width:min(100%,1120px);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.88fr);gap:clamp(24px,4vw,48px);align-items:center;padding:clamp(44px,7vw,84px) clamp(20px,4vw,40px) 38px}.eyebrow{margin:0 0 16px;color:var(--accent-dark);font-size:15px;font-weight:760;letter-spacing:0}h1{margin:0;font-size:clamp(56px,9vw,124px);line-height:.92;letter-spacing:0}.lead{max-width:620px;margin:24px 0 0;color:var(--muted);font-size:clamp(18px,2vw,23px);line-height:1.55}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:8px;font-size:16px;font-weight:720;border:1px solid var(--line)}.button.primary{color:#fff;background:var(--accent);border-color:var(--accent)}.button.mac{background:var(--ink);border-color:var(--ink)}.button.windows{background:#0078d4;border-color:#0078d4}.button.secondary{color:var(--ink);background:var(--panel)}.product-visual{position:relative;min-height:560px;display:grid;place-items:center}.product-visual:before{content:"";position:absolute;width:min(78vw,520px);aspect-ratio:1;border-radius:50%;background:#e9f6fd;filter:blur(2px);z-index:-1}.product-photo{width:min(70vw,390px);height:auto;display:block;filter:drop-shadow(0 30px 46px rgba(27,29,33,.18));-webkit-mask-image:radial-gradient(ellipse 48% 48% at 50% 50%,#000 64%,rgba(0,0,0,.86) 72%,rgba(0,0,0,.34) 84%,transparent 100%);mask-image:radial-gradient(ellipse 48% 48% at 50% 50%,#000 64%,rgba(0,0,0,.86) 72%,rgba(0,0,0,.34) 84%,transparent 100%)}.features{background:var(--paper)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:clamp(20px,4vw,46px);padding-top:clamp(34px,6vw,64px);padding-bottom:clamp(34px,6vw,64px)}.features article{padding-top:0}h2{margin:0;font-size:clamp(22px,3vw,32px);letter-spacing:0}.features p,.download-band p{margin:12px 0 0;color:var(--muted);font-size:17px;line-height:1.65}.download-band{background:#eef7fc}.download-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:clamp(34px,6vw,64px);padding-bottom:clamp(34px,6vw,64px)}.download-inner>div{max-width:620px}.story{background:var(--paper)}.story-grid{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(280px,1.2fr);gap:clamp(24px,5vw,70px);align-items:start;padding-top:clamp(38px,7vw,78px);padding-bottom:clamp(38px,7vw,78px)}.story-grid>p{margin:0;color:var(--muted);font-size:clamp(18px,2vw,22px);line-height:1.7}.flasher{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.flasher-grid{display:grid;grid-template-columns:minmax(280px,.9fr) minmax(320px,1.1fr);gap:clamp(24px,5vw,64px);align-items:center;padding-top:clamp(38px,7vw,78px);padding-bottom:clamp(38px,7vw,78px)}.flasher-copy>p:not(.eyebrow),.firmware-note,.browser-warning{margin:14px 0 0;color:var(--muted);font-size:17px;line-height:1.65}.flash-steps{margin:22px 0 0;padding-left:22px;color:var(--ink);font-size:16px;line-height:1.7}.flasher-panel{padding:clamp(18px,3vw,28px);border:1px solid var(--line);border-radius:8px;background:var(--paper)}.flasher-meta{display:flex;justify-content:space-between;gap:16px;color:var(--ink);font-size:15px;font-weight:720}.flasher-meta span:last-child{color:var(--muted);text-align:right}.progress-track{width:100%;height:10px;margin-top:18px;overflow:hidden;border-radius:999px;background:#dfe5ec}.progress-track span{display:block;width:0;height:100%;border-radius:inherit;background:var(--accent);transition:width .18s ease}.flasher-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.flasher-actions .button:disabled{cursor:not-allowed;opacity:.55}.browser-warning{color:#9f2f24}.flash-log{min-height:150px;max-height:220px;margin-top:18px;padding:14px;overflow:auto;border:1px solid var(--line);border-radius:8px;color:#d8f0ff;background:#17202a;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;font-size:13px;line-height:1.55}.flash-log p{margin:0;overflow-wrap:anywhere}footer{padding:22px 0;color:var(--muted);font-size:15px}.footer-inner{display:flex;align-items:center;justify-content:space-between}@media(max-width:820px){.hero{grid-template-columns:1fr;min-height:auto}.product-visual{min-height:560px}.features-grid{grid-template-columns:1fr}.download-inner{align-items:flex-start;flex-direction:column}.story-grid,.flasher-grid{grid-template-columns:1fr}}@media(max-width:520px){.topbar,.topbar-inner{align-items:flex-start;gap:14px;flex-direction:column}nav{flex-wrap:wrap}.product-visual{min-height:500px}}