*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#020817;-webkit-text-size-adjust:100%}
body{margin:0;min-width:320px;background:#020817;color:#fff;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow-x:clip}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,a{-webkit-tap-highlight-color:transparent}

.site-header{height:72px;width:100%;padding:0 clamp(16px,4vw,64px);display:flex;align-items:center;gap:24px;background:rgba(2,8,23,.97);border-bottom:1px solid #173968;position:sticky;top:0;z-index:50;backdrop-filter:blur(12px)}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex:0 0 auto}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;border:1px solid #285c99;background:#071a34;color:#78b9ff;font-size:21px;box-shadow:0 0 20px #1377ff22;flex:0 0 auto}
.brand-text{display:grid;line-height:.82;font-weight:950;letter-spacing:1.1px;font-size:18px;text-shadow:2px 2px #000;white-space:nowrap}
.brand-text b{color:#fff}.brand-text strong{color:#ffac12}
.main-nav{display:flex;align-items:center;justify-content:center;gap:clamp(16px,2.2vw,34px);margin-left:auto;min-width:0}
.main-nav a{height:72px;display:flex;align-items:center;color:#c9d8f1;font-size:14px;font-weight:700;border-bottom:2px solid transparent;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{color:#62b3ff;border-color:#4aa9ff}
.play-now,.primary-btn,.demo-button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;background:linear-gradient(180deg,#ffd630,#ffa600);color:#08111d;font-weight:950;box-shadow:0 8px 28px rgba(255,165,0,.18)}
.play-now{padding:12px 18px;margin-left:4px;white-space:nowrap;flex:0 0 auto}
.menu-toggle{display:none;margin-left:auto;background:#07152b;border:1px solid #28548d;color:#fff;border-radius:10px;font-size:24px;line-height:1;padding:9px 11px}

.hero{background:#061027;border-bottom:1px solid #153661}
.hero-art{width:100%;aspect-ratio:16/7;max-height:650px;min-height:300px;overflow:hidden;position:relative;background:#061027}
.hero-source{width:100%;height:100%;object-fit:cover;object-position:center 29%;user-select:none;pointer-events:none}
.hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,8,23,.04),rgba(2,8,23,.04) 72%,#061027 100%);pointer-events:none}
.hero-actions{position:static;transform:none;width:min(100%,760px);margin:0 auto;padding:22px 20px 28px;display:flex;justify-content:center;gap:12px}
.primary-btn,.secondary-btn{min-height:50px;padding:0 25px;border-radius:12px;font-weight:900;white-space:nowrap}
.secondary-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid #3a8ad3;background:#07152b;color:#fff}

.features{width:min(100%,1440px);margin:0 auto;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding:4px clamp(18px,4vw,64px) 34px;background:#061027}
.features article{min-width:0;min-height:90px;border:1px solid #1769c5;border-radius:14px;background:linear-gradient(180deg,#07172f,#041027);display:flex;align-items:center;justify-content:center;gap:14px;padding:16px}
.features article>span{font-size:32px;flex:0 0 auto}.features article>div{min-width:0}.features b,.features small{display:block}.features b{font-size:13px;letter-spacing:.7px}.features small{color:#aebed9;margin-top:5px;font-size:13px;line-height:1.35}

.demo-section{width:100%;padding:70px clamp(22px,6vw,90px);display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.85fr);gap:clamp(34px,6vw,80px);align-items:center;background:radial-gradient(circle at 20% 40%,#0a2245 0,#041027 34%,#020817 78%);border-top:1px solid #173968}
.demo-preview{position:relative;overflow:hidden;aspect-ratio:16/9;border:7px solid #19355d;border-radius:20px;background:#071229;box-shadow:0 28px 70px #0008;min-width:0}
.demo-source{width:100%;height:100%;object-fit:cover;object-position:center 76%;user-select:none;pointer-events:none}
.preview-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:76px;height:76px;border-radius:50%;border:3px solid #a8d6ff;background:#12345bdf;color:#fff;font-size:31px;display:grid;place-items:center;box-shadow:0 0 30px #2b99ff55}
.eyebrow{display:block;color:#52aaff;font-size:12px;font-weight:900;letter-spacing:1.8px;margin-bottom:10px}
.demo-copy{min-width:0}.demo-copy h2,.about-section h2,.cta-section h2{font-size:clamp(32px,4vw,54px);line-height:1.04;margin:0 0 16px}.demo-copy p,.about-section p{color:#c2cee3;font-size:17px;line-height:1.65;margin:0;max-width:650px}
.controls{display:flex;gap:14px;align-items:flex-end;border:1px solid #285a94;border-radius:12px;padding:14px 16px;margin:22px 0;max-width:470px;background:#041027;flex-wrap:wrap}.controls span{display:flex;align-items:center;gap:5px;flex-wrap:wrap;justify-content:center}.controls small{display:block;width:100%;text-align:center;color:#cdd8ed;margin-top:5px;font-size:11px}.controls kbd{border:1px solid #d9ebff;border-radius:5px;padding:4px 7px;background:#071022;color:#fff;box-shadow:inset 0 -2px #0d315e}.demo-button{font-size:18px;padding:15px 28px}.browser-note{display:block;color:#8fa6c6;margin-top:13px}

.about-section{padding:76px clamp(24px,8vw,130px);display:grid;grid-template-columns:minmax(250px,.8fr) minmax(0,1.2fr);gap:clamp(34px,7vw,100px);align-items:center;background:#030c20;border-top:1px solid #142c53}.about-section h2{margin-bottom:0}.about-section p{font-size:18px}.cta-section{padding:64px clamp(24px,8vw,130px);display:flex;align-items:center;justify-content:space-between;gap:28px;background:linear-gradient(120deg,#06162e,#071d3c 52%,#0a2448);border-top:1px solid #204975}.cta-section h2{margin-bottom:0;font-size:clamp(30px,4vw,48px)}.cta-section .primary-btn{min-width:180px}

footer{border-top:1px solid #23466f;padding:24px clamp(24px,5vw,80px);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px;background:#020817;color:#9fb1ce}.footer-brand .brand-mark{width:32px;height:32px;font-size:18px}.footer-brand .brand-text{font-size:15px}footer nav{display:flex;justify-content:center;gap:24px;flex-wrap:wrap}footer nav a:hover{color:#fff}footer p{white-space:nowrap;font-size:12px}

@media (max-width:1050px){
  .site-header{padding:0 18px;gap:16px}.main-nav{gap:14px}.main-nav a{font-size:13px}.play-now{padding:11px 15px}
  .hero-art{aspect-ratio:16/8;min-height:320px}.hero-source{object-position:center 30%}
  .features{grid-template-columns:repeat(2,minmax(0,1fr))}
  .demo-section{grid-template-columns:1fr 1fr;gap:30px;padding-left:28px;padding-right:28px}
}

@media (max-width:820px){
  .site-header{height:66px;padding:0 14px}.brand-mark{width:34px;height:34px}.brand-text{font-size:16px}.menu-toggle{display:block}.play-now{display:none}
  .main-nav{display:none;position:absolute;left:0;right:0;top:66px;padding:8px 14px 16px;background:#030c20;border-bottom:1px solid #214e86;flex-direction:column;align-items:stretch;gap:0;margin:0;max-height:calc(100dvh - 66px);overflow:auto}.main-nav.open{display:flex}.main-nav a{height:auto;padding:14px;border-bottom:1px solid #102d50}
  .hero-art{aspect-ratio:4/3;min-height:0;max-height:none}.hero-source{object-position:center 27%}.hero-actions{padding:16px 14px 22px}
  .features{grid-template-columns:repeat(2,minmax(0,1fr));padding:6px 14px 28px}
  .demo-section{grid-template-columns:1fr;padding:54px 18px;gap:32px}.demo-preview{width:min(100%,680px);margin:0 auto}.demo-copy{text-align:center}.demo-copy p,.controls{margin-left:auto;margin-right:auto}.browser-note{text-align:center}
  .about-section{grid-template-columns:1fr;text-align:center;padding:62px 24px}.about-section p{margin:auto}.cta-section{text-align:center;flex-direction:column;padding:58px 24px}
  footer{grid-template-columns:1fr;text-align:center}.footer-brand{justify-content:center}footer p{white-space:normal}
}

@media (max-width:520px){
  .site-header{padding:0 12px}.brand-text{font-size:14px}.brand-mark{width:30px;height:30px;font-size:17px}.menu-toggle{font-size:22px;padding:8px 10px}
  .hero-art{aspect-ratio:1/1.05}.hero-source{object-position:center 24%}.hero-actions{display:grid;grid-template-columns:1fr;gap:10px;padding:14px 14px 20px}.primary-btn,.secondary-btn{width:100%;min-height:50px;padding:0 14px;font-size:15px}
  .features{grid-template-columns:1fr;gap:9px;padding:4px 12px 24px}.features article{justify-content:flex-start;min-height:74px;padding:13px 18px}.features article>span{font-size:28px}.features b{font-size:12px}.features small{font-size:12px}
  .demo-section{padding:44px 12px;gap:26px}.demo-preview{border-width:4px;border-radius:14px}.preview-play{width:60px;height:60px;font-size:24px}.demo-copy h2{font-size:32px}.demo-copy p{font-size:15px}.controls{gap:9px;padding:11px;justify-content:center}.demo-button{width:100%}
  .about-section{padding:50px 18px}.about-section h2{font-size:32px}.about-section p{font-size:16px}.cta-section{padding:50px 18px}.cta-section .primary-btn{width:100%}
  footer{padding:24px 16px}footer nav{gap:14px;font-size:13px}
}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}