:root{
  --bg:#0f1f25;
  --bg-2:#152a32;
  --fg:#eef0f5;
  --muted:#9aa3b2;
  --accent:#22c66a;
  --accent-2:#ffb199;
  --line:rgba(255,255,255,.08);
  --card:rgba(255,255,255,.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Inter",system-ui,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.55}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
code{font-family:"SF Mono",ui-monospace,Menlo,monospace;font-size:.92em}

.nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:18px 32px;background:rgba(15,31,37,.75);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.2px}
.brand-mark{width:28px;height:28px}
.nav nav{display:flex;gap:28px}
.nav nav a{color:var(--muted);font-size:14px;transition:color .2s}
.nav nav a:hover{color:var(--fg)}

.hero{position:relative;padding:120px 24px 140px;text-align:center;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-inner{position:relative;z-index:1;max-width:820px;margin:0 auto}
.hero-logo{width:min(220px,55%);margin:0 auto 36px;filter:drop-shadow(0 12px 40px rgba(34,198,106,.35))}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.05;margin:0 0 18px;letter-spacing:-.02em;background:linear-gradient(180deg,#fff,#b9bdc8);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:19px;color:var(--muted);max-width:620px;margin:0 auto 32px}
.lede strong{color:var(--fg)}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 22px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;transition:transform .15s,background .2s,border-color .2s}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 10px 30px -12px rgba(34,198,106,.7)}
.btn.primary:hover{transform:translateY(-1px)}
.btn.ghost{border-color:var(--line);color:var(--fg)}
.btn.ghost:hover{border-color:rgba(255,255,255,.25)}
.sub{margin-top:22px;font-size:13px;color:var(--muted)}

.grid-bg{position:absolute;inset:0;background-image:radial-gradient(circle at 50% 0%,rgba(34,198,106,.18),transparent 60%),linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:auto,44px 44px,44px 44px;mask-image:radial-gradient(ellipse at center,#000 40%,transparent 75%)}

.section{padding:110px 32px;max-width:1120px;margin:0 auto}
.section.dark{max-width:none;background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.dark > *{max-width:1120px;margin-left:auto;margin-right:auto}
.section h2{font-size:clamp(30px,4vw,46px);margin:0 0 14px;letter-spacing:-.02em}
.section-lede{color:var(--muted);font-size:17px;max-width:640px;margin:0 0 48px}

.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;transition:border-color .2s,transform .2s}
.feature:hover{border-color:rgba(34,198,106,.45);transform:translateY(-2px)}
.feature h3{margin:0 0 8px;font-size:17px}
.feature p{margin:0;color:var(--muted);font-size:14.5px}

.tq{display:grid;grid-template-columns:1.4fr 1fr;gap:60px;align-items:center}
.tag{display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);background:rgba(34,198,106,.12);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.tq h2{margin-top:0}
.tq p{color:var(--muted);font-size:16px}
.bullets{padding:0;margin:18px 0 0;list-style:none}
.bullets li{padding:10px 0;border-bottom:1px solid var(--line);font-size:15px}
.bullets li:before{content:"→";color:var(--accent);margin-right:10px}
.card{background:linear-gradient(180deg,rgba(34,198,106,.08),transparent),var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.card-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.card-row:last-child{border-bottom:0}
.card-row span{color:var(--muted)}

.platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.plat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px}
.plat.primary{border-color:rgba(34,198,106,.5);background:linear-gradient(180deg,rgba(34,198,106,.1),transparent),var(--card)}
.plat h3{margin:0 0 8px}
.plat p{color:var(--muted);margin:0;font-size:14.5px}

.code{background:#000;border:1px solid var(--line);border-radius:14px;padding:22px;overflow:auto;font-size:13.5px;color:#e6e6e6}

footer{padding:36px 32px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--muted);font-size:13px;flex-wrap:wrap;gap:10px}

/* Download modal */
.dl-modal{position:fixed;inset:0;background:rgba(0,0,0,.78);backdrop-filter:blur(8px);z-index:100;display:none;align-items:center;justify-content:center;padding:20px;animation:dl-fade .18s ease-out}
.dl-modal.open{display:flex}
@keyframes dl-fade{from{opacity:0}to{opacity:1}}
.dl-card{background:#10232b;border:1px solid var(--line);border-radius:18px;width:100%;max-width:520px;max-height:calc(100vh - 40px);display:flex;flex-direction:column;box-shadow:0 30px 80px -20px rgba(0,0,0,.6)}
.dl-head{display:flex;align-items:center;justify-content:space-between;padding:22px 24px 10px}
.dl-head h3{margin:0;font-size:22px;letter-spacing:-.01em}
.dl-close{background:none;border:0;color:var(--muted);font-size:28px;line-height:1;cursor:pointer;padding:4px 8px;border-radius:8px;transition:color .15s,background .15s}
.dl-close:hover{color:var(--fg);background:rgba(255,255,255,.06)}
.dl-body{padding:4px 24px 22px;overflow-y:auto;display:flex;flex-direction:column;gap:10px}
.dl-lede{margin:0;color:var(--muted);font-size:14px}
.dl-version{font-size:12px;color:var(--accent);background:rgba(34,198,106,.1);border:1px solid rgba(34,198,106,.28);padding:6px 10px;border-radius:999px;align-self:flex-start;font-family:"SF Mono",ui-monospace,Menlo,monospace}
.dl-status{padding:10px 14px;border-radius:10px;font-size:13.5px;font-weight:500}
.dl-status-loading{background:rgba(34,198,106,.08);border:1px solid rgba(34,198,106,.3);color:#8ee5b0}
.dl-status-done{background:rgba(34,198,106,.12);border:1px solid rgba(34,198,106,.45);color:#a9ecc2}
.dl-rec-label{font-size:11px;font-weight:700;color:var(--accent);letter-spacing:.14em;text-transform:uppercase;margin-top:4px}
.dl-plat{display:flex;align-items:center;gap:14px;width:100%;padding:14px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px;color:var(--fg);font:inherit;text-align:left;cursor:pointer;transition:border-color .2s,background .2s,transform .15s}
.dl-plat:hover:not(:disabled){border-color:rgba(34,198,106,.5);background:rgba(34,198,106,.05)}
.dl-plat:disabled{opacity:.55;cursor:not-allowed}
.dl-plat-highlight{border-color:rgba(34,198,106,.55);background:linear-gradient(180deg,rgba(34,198,106,.08),transparent)}
.dl-plat-icon{width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.dl-plat-body{flex:1;min-width:0}
.dl-plat-title{font-weight:600;font-size:15px}
.dl-plat-accent{font-weight:400;font-size:12.5px;color:var(--accent);margin-left:4px}
.dl-plat-sub{font-size:13px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dl-plat-arrow{font-size:18px;color:var(--muted);flex-shrink:0;transition:transform .15s,color .15s}
.dl-plat:hover:not(:disabled) .dl-plat-arrow{color:var(--fg);transform:translateX(3px)}
.dl-toggle{background:none;border:0;color:var(--muted);font:inherit;font-size:13px;padding:6px 0;cursor:pointer;text-align:left;margin-top:4px;transition:color .15s}
.dl-toggle:hover{color:var(--fg)}
.dl-others{display:flex;flex-direction:column;gap:10px;margin-top:2px}
.dl-divider{font-size:11px;color:var(--muted);text-align:center;text-transform:uppercase;letter-spacing:.1em;margin:8px 0 2px;position:relative}
.dl-divider:before,.dl-divider:after{content:"";position:absolute;top:50%;width:calc(50% - 72px);height:1px;background:var(--line)}
.dl-divider:before{left:0}
.dl-divider:after{right:0}
.dl-foot{margin:10px 0 0;font-size:12px;color:var(--muted);text-align:center}
.dl-foot a{color:var(--accent)}

@media (max-width:880px){
  .features,.platforms{grid-template-columns:1fr 1fr}
  .tq{grid-template-columns:1fr}
  .nav nav{display:none}
  .section{padding:80px 24px}
  .hero{padding:80px 20px 100px}
}
@media (max-width:560px){
  .features,.platforms{grid-template-columns:1fr}
}