:root{--bg:#070b12;--panel:#0f1624;--line:#1d2a40;--text:#e8eef9;--muted:#8fa0bd;--cyan:#22e4ff;--red:#ff4d6d;--green:#3dff9a;--r:14px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow-x:hidden}
a{color:var(--cyan);text-decoration:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
header.nav{position:sticky;top:0;z-index:50;background:rgba(7,11,18,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:1.3rem;color:var(--text);letter-spacing:.5px}.logo b{color:var(--cyan)}
.nav nav a{color:var(--muted);margin-left:22px;font-size:.95rem}.nav nav a:hover{color:var(--text)}
.btn{display:inline-block;padding:12px 26px;border-radius:10px;font-weight:700;border:1px solid var(--cyan);color:var(--cyan);transition:.2s}
.btn.primary{background:var(--cyan);color:#001018}.btn:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(34,228,255,.25)}
.hero{position:relative;padding:70px 0 40px;text-align:center}
.hero h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.1;margin-bottom:16px}
.hero h1 span{color:var(--cyan)}
.hero p.lead{color:var(--muted);max-width:640px;margin:0 auto 26px;font-size:1.1rem}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.stage{margin:36px auto 0;max-width:760px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel);overflow:hidden;box-shadow:0 20px 70px rgba(0,0,0,.5)}
.stage canvas{display:block;width:100%;height:auto;aspect-ratio:3/2}
.legend{display:flex;gap:18px;justify-content:center;padding:10px;font-size:.8rem;color:var(--muted);border-top:1px solid var(--line)}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px}
section{padding:70px 0}
h2{font-size:clamp(1.6rem,3.4vw,2.3rem);margin-bottom:10px;text-align:center}
.sub{color:var(--muted);text-align:center;max-width:620px;margin:0 auto 38px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.25s}
.card:hover{border-color:var(--cyan);transform:translateY(-4px)}
.card h3{margin-bottom:8px}.card p{color:var(--muted);font-size:.95rem}
.ico{font-size:1.8rem;margin-bottom:10px}
.compare{position:relative;max-width:520px;margin:0 auto;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);user-select:none;touch-action:none}
.compare img{display:block;width:100%;height:auto}
.compare .top{position:absolute;inset:0;width:50%;overflow:hidden}
.compare .top img{width:var(--w,520px);max-width:none;height:100%;object-fit:cover}
.compare .bar{position:absolute;top:0;bottom:0;left:50%;width:3px;background:var(--cyan);cursor:ew-resize}
.compare .bar::after{content:"\2194";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:50%;background:var(--cyan);color:#001018;display:grid;place-items:center;font-weight:800}
.tag{position:absolute;top:10px;padding:3px 10px;border-radius:6px;font-size:.75rem;background:rgba(0,0,0,.65)}
.steps{counter-reset:s}.steps .card{position:relative;padding-top:46px}
.steps .card::before{counter-increment:s;content:counter(s);position:absolute;top:14px;left:20px;color:var(--cyan);font-weight:800;font-size:1.4rem}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;text-align:center}
.stats b{display:block;font-size:2.2rem;color:var(--cyan)}.stats span{color:var(--muted);font-size:.9rem}
.price{max-width:380px;margin:0 auto;text-align:center}
.price ul{list-style:none;margin:16px 0;text-align:left}.price li{padding:6px 0;color:var(--muted)}.price li::before{content:"\2713  ";color:var(--green)}
details{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}details p{color:var(--muted);margin-top:8px}
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.9rem;text-align:center}
footer a{color:var(--muted);margin:0 10px}
.reveal{opacity:0;transform:translateY(24px);transition:.7s}.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
@media(max-width:640px){.nav nav a:not(.btn){display:none}}

/* ===== Interactive layer ===== */
#bg{position:fixed;inset:0;width:100%;height:100%;z-index:-1;pointer-events:none}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(520px circle at var(--mx,50%) var(--my,30%),rgba(34,228,255,.12),transparent 60%)}
.cursor{position:fixed;left:0;top:0;width:34px;height:34px;margin:-17px 0 0 -17px;border:1.5px solid var(--cyan);border-radius:50%;pointer-events:none;z-index:99;transition:width .2s,height .2s,margin .2s,background .2s,opacity .3s;mix-blend-mode:screen;opacity:0}
.cursor.on{opacity:1}.cursor.big{width:60px;height:60px;margin:-30px 0 0 -30px;background:rgba(34,228,255,.12)}
.cursor-dot{position:fixed;left:0;top:0;width:6px;height:6px;margin:-3px 0 0 -3px;background:#fff;border-radius:50%;pointer-events:none;z-index:99;opacity:0}
.cursor-dot.on{opacity:1}
@media(hover:none){.cursor,.cursor-dot{display:none}}
.hero h1 span{background:linear-gradient(100deg,var(--cyan),var(--green),var(--cyan));background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:flow 6s linear infinite}
@keyframes flow{to{background-position:200% center}}
.stage{position:relative;cursor:crosshair}
.stage .xh{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .2s}
.stage:hover .xh{opacity:1}
.xh i{position:absolute;background:rgba(34,228,255,.45)}
.xh .h{left:0;right:0;height:1px;top:var(--y,50%)}.xh .v{top:0;bottom:0;width:1px;left:var(--x,50%)}
.xh b{position:absolute;left:calc(var(--x,50%) + 12px);top:calc(var(--y,50%) + 10px);font:600 11px ui-monospace,Consolas,monospace;color:var(--cyan);background:rgba(7,11,18,.8);padding:2px 6px;border-radius:4px}
.card{transform-style:preserve-3d;transition:transform .15s ease-out,border-color .25s;position:relative;overflow:hidden}
.card::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .25s;background:radial-gradient(260px circle at var(--gx,50%) var(--gy,50%),rgba(34,228,255,.18),transparent 60%)}
.card:hover::after{opacity:1}
.btn{position:relative;will-change:transform}
.hero h1,.hero p.lead{will-change:transform}