:root{--bg:#07070a;--bg2:#0d0d12;--panel:#111117;--line:#22222c;--text:#f3f3f7;--muted:#9a9aab;--a1:#ff3d5a;--a2:#ff8a1f;--grad:linear-gradient(135deg,var(--a1),var(--a2));--r:16px;--ease:cubic-bezier(.2,.8,.2,1)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--bg);color:var(--text);font:16px/1.6 Inter,"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
code,kbd{font-family:"JetBrains Mono",Consolas,ui-monospace,monospace}
code{font-size:.88em;background:var(--panel);border:1px solid var(--line);padding:1px 6px;border-radius:6px}
kbd{display:inline-block;font-size:.85em;font-weight:700;padding:1px 8px;border-radius:7px;background:var(--panel);border:1px solid var(--line);border-bottom-width:3px;color:var(--text)}
.wrap{width:min(1200px,100% - 40px);margin-inline:auto}
.muted{color:var(--muted)}
.bg-grid{position:fixed;inset:0;pointer-events:none;z-index:-1;background:radial-gradient(900px 500px at 75% -5%,color-mix(in srgb,var(--a1) 16%,transparent),transparent 70%),radial-gradient(700px 500px at -10% 30%,color-mix(in srgb,var(--a2) 9%,transparent),transparent 70%),linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px) 0 0/48px 48px,linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px) 0 0/48px 48px;mask-image:linear-gradient(#000 0%,#000 60%,transparent 100%)}

/* nav */
.nav{position:sticky;top:0;z-index:50;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(14px);border-color:var(--line)}
.nav-in{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font:800 italic 20px/1 Sora,Inter,sans-serif;letter-spacing:.1em}
.brand img{width:32px;height:32px}
.links{display:flex;gap:26px;margin-left:auto;font-size:14.5px;font-weight:600;color:var(--muted)}
.links a{position:relative;transition:color .2s}
.links a:hover{color:var(--text)}
.links a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transition:transform .25s var(--ease)}
.links a:hover::after{transform:scaleX(1)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--panel);flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer}
.burger i{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;height:46px;padding:0 20px;border-radius:14px;font-weight:700;font-size:15px;border:1px solid var(--line);background:var(--panel);color:var(--text);cursor:pointer;transition:transform .2s var(--ease),box-shadow .3s,background .2s,border-color .2s}
.btn svg{width:18px;height:18px;fill:currentColor;flex:none}
.btn:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--a1) 50%,var(--line))}
.btn.primary{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 14px 40px -14px color-mix(in srgb,var(--a1) 85%,transparent)}
.btn.primary:hover{box-shadow:0 20px 50px -14px color-mix(in srgb,var(--a1) 95%,transparent);filter:brightness(1.06)}
.btn.ghost{background:transparent}
.btn.sm{height:38px;padding:0 14px;font-size:14px;border-radius:11px}
.btn.big{height:62px;padding:0 26px;border-radius:16px}
.btn.big svg{width:24px;height:24px}
.btn.big span{display:flex;flex-direction:column;line-height:1.15;text-align:left}
.btn.big small{font-weight:500;font-size:12.5px;opacity:.85}

/* hero */
.hero{display:grid;grid-template-columns:1fr 1.15fr;gap:60px;align-items:center;padding:70px 0 40px;min-height:calc(100vh - 68px)}
.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 14px;border-radius:99px;border:1px solid var(--line);background:color-mix(in srgb,var(--panel) 70%,transparent);font-size:13px;font-weight:600;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;background:#ef4444;box-shadow:0 0 0 0 rgba(239,68,68,.6);animation:rec 1.6s infinite}
@keyframes rec{70%{box-shadow:0 0 0 8px transparent}100%{box-shadow:0 0 0 0 transparent}}
h1{font:800 clamp(44px,6.4vw,84px)/1.0 Sora,Inter,sans-serif;letter-spacing:-.035em;margin:22px 0 22px}
h1 em{font-style:italic;background:var(--grad);-webkit-background-clip:text;color:transparent;padding-right:.08em}
.lead{font-size:clamp(17px,1.5vw,19.5px);color:#c9c9d6;max-width:540px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.fine{margin-top:14px;font-size:13px;color:var(--muted)}
.fine code{font-size:11px}
.hero-art{position:relative;perspective:1600px}
.hero-art .glow{position:absolute;inset:10% 5% -5%;background:var(--grad);filter:blur(90px);opacity:.28;border-radius:50%}
.frame{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:0 50px 120px -40px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.03);background:var(--bg2)}
.frame img{width:100%;height:auto}
.tilt{transform:rotateY(-12deg) rotateX(5deg);transition:transform .8s var(--ease)}
.hero-art:hover .tilt{transform:rotateY(-4deg) rotateX(2deg)}
.float{position:absolute;display:flex;align-items:center;gap:12px;border-radius:16px;background:rgba(16,16,22,.92);border:1px solid var(--line);box-shadow:0 20px 50px -14px rgba(0,0,0,.85);backdrop-filter:blur(10px)}
.toast-demo{right:-14px;top:9%;padding:12px 18px 12px 12px;animation:toastIn 4.5s var(--ease) infinite}
.toast-demo .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--grad)}
.toast-demo svg{width:20px;height:20px;fill:#fff}
.toast-demo b{display:block;font-size:14px}.toast-demo small{color:var(--muted);font-size:12px}
@keyframes toastIn{0%,8%{opacity:0;transform:translateX(30px)}16%,80%{opacity:1;transform:none}92%,100%{opacity:0;transform:translateX(30px)}}
.key-demo{left:-18px;bottom:12%;padding:14px}
.key-demo kbd{font-size:24px;padding:8px 18px;animation:press 4.5s infinite}
@keyframes press{0%,4%{transform:translateY(0);border-bottom-width:3px;box-shadow:0 0 0 0 transparent}7%{transform:translateY(3px);border-bottom-width:1px;box-shadow:0 0 0 10px color-mix(in srgb,var(--a1) 25%,transparent)}12%,100%{transform:none;border-bottom-width:3px;box-shadow:0 0 0 0 transparent}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r);background:color-mix(in srgb,var(--panel) 70%,transparent);backdrop-filter:blur(6px);overflow:hidden}
.stats div{padding:24px 26px;border-left:1px solid var(--line)}
.stats div:first-child{border-left:0}
.stats b{display:block;font:800 26px Sora,Inter,sans-serif;background:var(--grad);-webkit-background-clip:text;color:transparent}
.stats span{color:var(--muted);font-size:14px}

/* sections */
.section{padding:110px 0 0}
.sec-head{max-width:720px;margin-bottom:46px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;background:var(--grad);-webkit-background-clip:text;color:transparent;margin-bottom:12px}
h2{font:800 clamp(30px,3.6vw,46px)/1.1 Sora,Inter,sans-serif;letter-spacing:-.025em}
.sec-head p{color:var(--muted);font-size:17.5px;margin-top:14px}
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{padding:28px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line);transition:transform .3s var(--ease),border-color .3s}
.step:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--a1) 40%,var(--line))}
.step .n{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:color-mix(in srgb,var(--a1) 14%,transparent);color:var(--a1);font-weight:800;margin-bottom:18px}
.step h3,.feat h3{font:700 19px Sora,Inter,sans-serif;margin-bottom:8px}
.step p,.feat p{color:var(--muted);font-size:15px}
.buffer-demo{margin-top:26px;padding:26px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line)}
.buffer-demo .track{position:relative;height:56px;border-radius:12px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 6px,transparent 6px 10px);overflow:hidden}
.buffer-demo .bar{position:absolute;inset:0;background:repeating-linear-gradient(90deg,color-mix(in srgb,var(--a1) 75%,transparent) 0 6px,transparent 6px 10px);mask-image:linear-gradient(90deg,transparent,#000 30%);animation:flow 1.2s linear infinite}
@keyframes flow{to{background-position:-10px 0}}
.buffer-demo .playhead{position:absolute;right:0;top:0;bottom:0;width:3px;background:#fff;box-shadow:0 0 18px #fff}
.buffer-demo .saved{position:absolute;right:0;top:0;bottom:0;width:10%;border:2px solid var(--a2);border-radius:10px;background:color-mix(in srgb,var(--a2) 18%,transparent);display:grid;place-items:center;font-size:12px;font-weight:800;white-space:nowrap;opacity:0;transition:opacity .4s,width .6s var(--ease)}
.buffer-demo .saved.on{opacity:1;width:24%}
.buffer-demo .labels{display:flex;justify-content:space-between;margin-top:10px;color:var(--muted);font-size:13px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat{padding:26px;border-radius:var(--r);background:linear-gradient(180deg,color-mix(in srgb,var(--panel) 100%,transparent),color-mix(in srgb,var(--panel) 60%,transparent));border:1px solid var(--line);transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.feat:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--a1) 45%,var(--line));box-shadow:0 30px 60px -30px color-mix(in srgb,var(--a1) 50%,transparent)}
.fi{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--grad);margin-bottom:18px;box-shadow:0 10px 26px -10px var(--a1)}
.fi svg{width:23px;height:23px;fill:#fff}
.show{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.show.rev .show-copy{order:2}
.show-copy h2{margin-bottom:18px}
.show-copy p{margin-bottom:16px}
.ticks{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:8px}
.ticks li{position:relative;padding-left:32px;color:#cfcfdb}
.ticks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:7px;background:color-mix(in srgb,var(--a1) 16%,transparent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23ff3d5a' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/14px no-repeat}
.swatches{display:flex;flex-wrap:wrap;gap:12px;margin:-16px 0 30px}
.swatches button{display:flex;align-items:center;gap:10px;padding:8px 14px 8px 8px;border-radius:99px;border:1px solid var(--line);background:var(--panel);color:var(--text);font:600 14px Inter,sans-serif;cursor:pointer;transition:.2s}
.swatches button i{width:24px;height:24px;border-radius:50%}
.swatches button:hover,.swatches button.on{border-color:var(--a1);transform:translateY(-2px)}
.frame.wide{max-width:1100px;margin:0 auto}
.req{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:16px 22px;border-top:1px solid var(--line);vertical-align:top}
thead th{border-top:0;font:700 14px Sora,Inter,sans-serif;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;background:var(--bg2)}
td:first-child{font-weight:700;width:140px}
td:last-child{color:#d7d7e2}
.install{counter-reset:i;list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.install li{counter-increment:i;padding:26px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line);color:var(--muted);font-size:15px}
.install li::before{content:counter(i);display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--grad);color:#fff;font-weight:800;margin-bottom:14px}
.install b{color:var(--text)}
.changelog{display:flex;flex-direction:column;gap:16px}
.release{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:26px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line)}
.release .ver{font:800 22px Sora,Inter,sans-serif}
.release .date{color:var(--muted);font-size:14px}
.release .tag{display:inline-block;margin-top:8px;font-size:12px;font-weight:700;padding:2px 9px;border-radius:7px;background:color-mix(in srgb,var(--a1) 15%,transparent);color:var(--a1)}
.release h3{font:700 18px Sora,Inter,sans-serif;margin-bottom:10px}
.release ul{padding-left:20px;color:#cfcfdb;display:flex;flex-direction:column;gap:6px}
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px}
details{border-radius:14px;background:var(--panel);border:1px solid var(--line);transition:border-color .2s}
details[open]{border-color:color-mix(in srgb,var(--a1) 40%,var(--line))}
summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:24px;font-weight:400;color:var(--muted);transition:transform .3s var(--ease)}
details[open] summary::after{transform:rotate(45deg);color:var(--a1)}
details p{padding:0 24px 22px;color:var(--muted);animation:fadeDown .35s var(--ease)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}}
.support{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:center;padding:40px;border-radius:24px;background:radial-gradient(500px 300px at 100% 0,color-mix(in srgb,var(--a1) 14%,transparent),transparent 70%),var(--panel);border:1px solid var(--line)}
.support h2{margin-bottom:12px}
.support-links{display:flex;flex-direction:column;gap:10px}
.support-links a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-radius:14px;background:var(--bg2);border:1px solid var(--line);font-weight:700;transition:.2s}
.support-links a:hover{border-color:var(--a1);transform:translateX(4px)}
.support-links small{color:var(--muted);font-weight:500}
.cta{text-align:center;padding:130px 0 110px;display:flex;flex-direction:column;align-items:center;gap:26px}
.cta img{width:84px;filter:drop-shadow(0 16px 40px color-mix(in srgb,var(--a1) 60%,transparent));animation:bob 3s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-8px)}}
.footer{border-top:1px solid var(--line);padding:30px 0;font-size:14px}
.foot-in{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.foot-in nav{display:flex;gap:20px;margin-left:auto;color:var(--muted)}
.foot-in nav a:hover{color:var(--text)}
.os-note{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);padding:12px 18px;border-radius:14px;background:#1a1a22;border:1px solid var(--line);font-size:14px;z-index:60;box-shadow:0 20px 50px -20px #000;width:max-content;max-width:calc(100% - 30px)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}

/* responsive */
@media (max-width:1080px){
  .hero{grid-template-columns:1fr;gap:50px;padding-top:50px;min-height:0;text-align:center}
  .hero-copy{display:flex;flex-direction:column;align-items:center}
  .lead{margin-inline:auto}.cta-row{justify-content:center}
  .tilt{transform:none}
  .features{grid-template-columns:repeat(2,1fr)}
  .show,.show.rev{grid-template-columns:1fr;gap:34px}.show.rev .show-copy{order:0}
  .install{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}.stats div:nth-child(3){border-left:0}.stats div:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:820px){
  .links{position:fixed;inset:68px 0 auto 0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 20px 20px;transform:translateY(-120%);transition:transform .35s var(--ease);margin:0;font-size:17px}
  .links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .links.open{transform:none}
  .burger{display:flex;margin-left:auto}
  .nav .dl-link.sm{display:none}
  .nav.menu-open .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}.nav.menu-open .burger i:nth-child(2){opacity:0}.nav.menu-open .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .how,.release,.support{grid-template-columns:1fr}
  .section{padding-top:80px}
  .toast-demo{right:0;transform:scale(.85)}.key-demo{left:0}
  .support{padding:26px}
}
@media (max-width:560px){
  .features,.install{grid-template-columns:1fr}
  .btn.big{width:100%;justify-content:center}
  .cta-row{width:100%}
  th,td{padding:12px 14px;font-size:14px}td:first-child{width:auto}
  .toast-demo,.key-demo{display:none}
  .foot-in nav{margin-left:0}
}