:root{--bg:#0d0e11;--card:#111214;--edge:#2a2d34;--text:#f5f6f8;--muted:#a9adb7;--blue:#a6c3ff;font-family:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.2;font-weight:600;letter-spacing:-.025em}a{color:var(--blue);text-underline-offset:4px}a:hover{color:#fff}a:focus-visible,summary:focus-visible{outline:2px solid #80adff;outline-offset:5px}img{display:block}strong{font-weight:600}code{font-size:.92em;overflow-wrap:anywhere;color:#e5e9f2}.wrap{max-width:900px;margin:0 auto;padding:0 28px}.site-header{border-bottom:1px solid var(--edge)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:80px}.logo{display:inline-flex;align-items:center;gap:9px;color:#fff;font-size:20px;font-weight:700;text-decoration:none;letter-spacing:-.04em}.back-link{font-size:13px;text-decoration:none;color:var(--muted)}.skip-link{position:absolute;left:20px;top:-100px;padding:12px 18px;background:#fff;color:#111;z-index:10}.skip-link:focus{top:12px}
.intro{padding:64px 0 30px}.eyebrow{font-size:10px;letter-spacing:.14em;font-weight:600;color:var(--muted);margin-bottom:14px}h1{font-size:clamp(32px,5vw,48px);max-width:700px}.lead{font-size:18px;line-height:1.6;color:var(--muted);max-width:660px;margin-top:20px}.explanation{border:1px solid #35465f;border-radius:12px;background:#131b28;padding:24px 28px}.explanation h2{font-size:18px;line-height:1.4}.explanation p{margin-top:12px;color:#bac5d8;font-size:14px}.platform-nav{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 46px}.platform-nav a{display:flex;align-items:center;gap:16px;padding:10px 18px;min-height:44px;border:1px solid var(--edge);border-radius:999px;text-decoration:none;color:var(--text);font-size:13px}.platform-nav a:hover{background:#1a1c21;border-color:#526580}.platform-nav a:last-child{color:var(--muted)}
.platform{border-top:1px solid var(--edge);padding:38px 0 42px;scroll-margin-top:24px}.platform-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.platform-heading .eyebrow{margin-bottom:10px}h2{font-size:28px}.version{flex:none;font-size:12px;color:var(--muted);border:1px solid var(--edge);padding:5px 11px;border-radius:999px}.steps{list-style:none;margin:30px 0 24px;padding:0;counter-reset:step}.steps>li{display:flex;gap:18px;margin-top:26px;counter-increment:step}.steps>li:before{content:counter(step);display:grid;place-items:center;width:30px;height:30px;flex:none;border:1px solid #3c4e69;border-radius:50%;color:#aec8f6;font-size:12px;line-height:1}.steps>li>div{min-width:0;padding-top:4px;flex:1}h3{font-size:17px;line-height:1.4}.steps p{color:var(--muted);margin-top:10px}.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:44px;border:1px solid transparent;border-radius:999px;background:#f2f5fa;color:#101319;text-decoration:none;font-size:13px;font-weight:600;padding:10px 18px;margin-top:16px;text-align:center;line-height:1.5}.button:hover{background:#d6e3fc;color:#101319}.button-outline{background:transparent;color:#d5e3ff;border-color:#4b5c76}.button-outline:hover{background:#1b2638;color:#fff}.download-actions{display:flex;gap:10px;flex-wrap:wrap}.action-path{display:flex;align-items:center;flex-wrap:wrap;gap:9px 12px;border-left:2px solid #729dea;background:#151d2a;border-radius:0 8px 8px 0;padding:16px 18px;margin:16px 0;font-size:14px;line-height:1.5}.action-path>span{color:#83a6e1}.hint{font-size:13px}.source{font-size:13px;display:inline-block;line-height:1.6}
.help{border-top:1px solid var(--edge);padding-top:40px;scroll-margin-top:24px}.help>h2{margin-bottom:24px}.help details{border-top:1px solid var(--edge);scroll-margin-top:24px}.help summary{cursor:pointer;padding:18px 4px;font-size:14px;font-weight:500;line-height:1.6}.help details p{color:var(--muted);font-size:14px;margin:0 4px 22px}.support{display:flex;align-items:center;gap:26px;justify-content:space-between;background:var(--card);border:1px solid var(--edge);border-radius:12px;padding:26px;margin-top:24px}.support p{color:var(--muted);font-size:13px;margin-top:9px;max-width:440px}.support .button{margin:0;flex:none}.footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:56px;padding-bottom:30px;font-size:12px;color:var(--muted)}.footer a{color:var(--muted);text-decoration:none}
@media(max-width:600px){.wrap{padding-left:20px;padding-right:20px}.header-inner{min-height:68px}.logo{font-size:18px}.back-link{font-size:12px}.intro{padding-top:40px}.lead{font-size:16px}.explanation{padding:20px}.platform-nav{gap:8px;margin-bottom:34px}.platform-nav a{padding:9px 14px}.platform-heading{align-items:flex-start;flex-direction:column;gap:12px}.platform-heading h2{font-size:26px}.platform{padding-top:28px}.steps>li{gap:12px}.steps>li:before{width:26px;height:26px}.steps>li>div{padding-top:1px}.action-path{padding:14px}.support{flex-direction:column;align-items:flex-start;padding:22px;gap:20px}.support .button{width:100%}.footer{padding-top:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}