:root{
  --fg:#1d1d1f; --fg-dim:#6e6e73; --bg:#ffffff; --bg-alt:#f5f5f7;
  --blue:#0071e3; --blue-press:#0077ED; --hair:#d2d2d7;
  --ink:#0b1120; --radius:18px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.5}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* Nav */
.nav{position:sticky;top:0;z-index:50;height:48px;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}
.nav-inner{max-width:1024px;margin:0 auto;height:48px;padding:0 22px;display:flex;align-items:center;gap:28px}
.nav-logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:17px}
.nav-logo img{border-radius:6px}
.nav-links{display:flex;gap:26px;margin-left:8px;font-size:13px;color:#1d1d1f}
.nav-links a{opacity:.85;transition:opacity .2s}
.nav-links a:hover{opacity:1;color:var(--blue)}
.nav-cta{margin-left:auto;font-size:13px;background:var(--blue);color:#fff;padding:5px 13px;border-radius:980px;font-weight:500}
.nav-cta:hover{background:var(--blue-press)}

/* Hero */
.hero{text-align:center;padding:84px 22px 40px;max-width:1024px;margin:0 auto}
.hero-icon{width:96px;height:96px;margin:0 auto 22px;border-radius:22px;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.hero-title{font-size:clamp(44px,8vw,88px);font-weight:700;letter-spacing:-.02em;line-height:1.02}
.hero-sub{font-size:clamp(20px,3.2vw,30px);color:var(--fg-dim);margin-top:14px;font-weight:500;letter-spacing:-.01em}
.hero-actions{display:flex;gap:26px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.hero-actions.center{justify-content:center}
.link-chevron{color:var(--blue);font-size:19px}
.link-chevron::after{content:" ›"}
.link-chevron.ghost{color:var(--blue)}
.link-chevron:hover{text-decoration:underline}

.hero-shot{margin:52px auto 0;max-width:1100px;padding:0 16px}

/* Window frame */
.window{border-radius:14px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.28),0 2px 8px rgba(0,0,0,.12);border:1px solid rgba(0,0,0,.08);background:#0b1120}
.window-bar{height:34px;background:#0f1830;display:flex;align-items:center;gap:8px;padding:0 14px;border-bottom:1px solid rgba(255,255,255,.06)}
.window-bar span{width:12px;height:12px;border-radius:50%;background:#3a4a5a}
.window-bar span:nth-child(1){background:#ff5f57}.window-bar span:nth-child(2){background:#febc2e}.window-bar span:nth-child(3){background:#28c840}
.window img{width:100%;display:block}

/* Sections */
.feature{padding:100px 22px;text-align:center}
.feature.light{background:var(--bg-alt)}
.feature.dark{background:#000;color:#f5f5f7}
.feature-inner{max-width:900px;margin:0 auto}
.eyebrow{font-size:17px;font-weight:600;color:var(--blue);margin-bottom:10px}
.feature.dark .eyebrow{color:#2997ff}
.feature h2{font-size:clamp(32px,5.5vw,56px);font-weight:700;letter-spacing:-.02em;line-height:1.05}
.muted{color:var(--fg-dim)}
.feature.dark .muted{color:#86868b}
.lede{font-size:clamp(17px,2.4vw,21px);line-height:1.5;color:var(--fg-dim);margin:22px auto 0;max-width:720px}
.feature.dark .lede{color:#a1a1a6}
.lede.center{text-align:center}
.feature .window{margin-top:48px}

.pills{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:28px}
.pill{font-size:14px;padding:7px 15px;border-radius:980px;background:rgba(0,0,0,.06);color:#1d1d1f;font-weight:500}
.logos{display:flex;flex-wrap:wrap;gap:14px 34px;justify-content:center;margin-top:34px;font-size:21px;font-weight:600;color:#86868b;letter-spacing:-.01em}

/* How it's used */
.steps{background:#fff;padding:100px 22px;text-align:center}
.steps h2{font-size:clamp(30px,5vw,48px);font-weight:700;letter-spacing:-.02em}
.steps-sub{color:var(--fg-dim);font-size:19px;margin-top:12px}
.step-grid{max-width:1040px;margin:56px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{text-align:left}
.step-n{width:30px;height:30px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;margin-bottom:14px}
.step h3{font-size:19px;font-weight:600;letter-spacing:-.01em}
.step p{color:var(--fg-dim);font-size:15px;margin-top:6px}

/* Gallery */
.gallery{background:var(--bg-alt);padding:90px 22px;text-align:center}
.gallery h2{font-size:clamp(28px,4.5vw,42px);font-weight:700;letter-spacing:-.02em;margin-bottom:40px}
.gallery-grid{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.gallery-grid .window{background:#0b1120}
.gallery figcaption{font-size:14px;color:var(--fg-dim);margin-top:12px;text-align:center}

/* Download */
.download{background:#000;color:#f5f5f7;text-align:center;padding:110px 22px}
.download h2{font-size:clamp(34px,6vw,60px);font-weight:700;letter-spacing:-.02em}
.btn{display:inline-block;background:var(--blue);color:#fff;font-size:17px;font-weight:500;padding:12px 24px;border-radius:980px;transition:background .2s}
.btn:hover{background:var(--blue-press)}
.btn.ghost{background:transparent;border:1px solid #6e6e73;color:#2997ff}
.btn.ghost:hover{background:rgba(255,255,255,.06)}
.fineprint{color:#86868b;font-size:13px;margin-top:18px}

/* Footer */
.footer{background:#f5f5f7;color:#6e6e73;padding:40px 22px;border-top:1px solid var(--hair)}
.footer-inner{max-width:980px;margin:0 auto}
.disclaimer{font-size:13px;line-height:1.5;padding-bottom:16px;border-bottom:1px solid var(--hair);max-width:760px}
.copyright{font-size:12px;margin-top:16px}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
.reveal.in{opacity:1;transform:none}

/* Architecture page */
.doc{max-width:900px;margin:0 auto;padding:64px 22px 100px}
.doc h1{font-size:clamp(34px,6vw,56px);font-weight:700;letter-spacing:-.02em}
.doc .tagline{font-size:20px;color:var(--fg-dim);margin-top:12px;margin-bottom:8px}
.doc h2{font-size:clamp(24px,4vw,34px);font-weight:700;letter-spacing:-.01em;margin:56px 0 10px}
.doc h3{font-size:20px;font-weight:600;margin:32px 0 8px}
.doc p{color:#333;font-size:17px;line-height:1.6;margin:12px 0}
.doc ul{margin:12px 0 12px 22px;color:#333;font-size:17px;line-height:1.6}
.doc code{background:#f5f5f7;padding:2px 6px;border-radius:5px;font-size:14px;font-family:ui-monospace,"SF Mono",Menlo,monospace}
.diagram{background:#f5f5f7;border:1px solid var(--hair);border-radius:16px;padding:22px;margin:22px 0;overflow-x:auto}
.diagram .mermaid{display:flex;justify-content:center}
.c4{display:block;width:100%;max-width:820px;height:auto;margin:0 auto;font-family:var(--font)}
.c4 text{text-anchor:middle;dominant-baseline:middle}
.c4 .t{font-size:15.5px;font-weight:700}
.c4 .s{font-size:12px}
.c4 .s2{font-size:10px;font-style:italic;letter-spacing:.02em}
.c4 .blabel{text-anchor:start;font-size:12px;font-weight:600;fill:#64748b}
.c4 .elabel rect{fill:#f5f5f7}
.c4 .elabel text{font-size:11.5px;fill:#475569}
.callout{background:#eef6ff;border:1px solid #cfe5ff;border-radius:14px;padding:16px 18px;margin:22px 0;font-size:15px;color:#0b4a8f}

@media (max-width:760px){
  .nav-links{display:none}
  .step-grid{grid-template-columns:1fr 1fr}
  .gallery-grid{grid-template-columns:1fr}
}