:root{--bg:#0b1220;--bg2:#111a2e;--card:#16213a;--tx:#e8edf6;--mu:#9fb0c8;--ac:#facc15;--ac2:#38bdf8;--ok:#34d399;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--tx);line-height:1.6}
a{color:var(--ac2)}img{max-width:100%}
.w{max-width:1120px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:9;background:rgba(11,18,32,.92);backdrop-filter:blur(8px);border-bottom:1px solid #1e2a44}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.25rem;color:#fff;text-decoration:none}
.nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}.nav ul a{color:var(--mu);text-decoration:none;font-size:.93rem}.nav ul a:hover{color:#fff}
.btn{display:inline-block;background:var(--ac);color:#111;font-weight:700;padding:12px 22px;border-radius:999px;text-decoration:none;border:0;cursor:pointer;font-size:1rem}
.btn:hover{filter:brightness(1.08)}.btn.g{background:transparent;color:#fff;border:1px solid #334155}
.nav .btn{padding:8px 16px;font-size:.9rem}
section{padding:80px 0;border-bottom:1px solid #16213a}section:nth-of-type(even){background:var(--bg2)}
h1{font-size:clamp(2rem,4.5vw,3.2rem);line-height:1.15;margin:0 0 18px}h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 12px}h3{margin:0 0 8px;font-size:1.15rem}
.lead{color:var(--mu);font-size:1.12rem;max-width:720px}.eb{color:var(--ac);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:72px 0}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 14px}.small{font-size:.85rem;color:var(--mu)}
.grid{display:grid;gap:20px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid #23314f;border-radius:var(--r);padding:24px}
.num{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--ac);color:#111;font-weight:800;margin-bottom:10px}
.tag{display:inline-block;font-size:.75rem;padding:3px 10px;border-radius:999px;background:#1e2a44;color:var(--mu);margin:2px 4px 2px 0}
.demo{border:1px dashed #475569;font-size:.75rem;color:var(--ac);padding:2px 8px;border-radius:6px;display:inline-block;margin-bottom:10px}
.panel{background:#0e1628;border:1px solid #23314f;border-radius:var(--r);padding:20px}
.lane{margin:14px 0}.lane b{display:block;font-size:.9rem;margin-bottom:6px}
.bar{height:12px;background:#1e2a44;border-radius:6px;overflow:hidden}.bar i{display:block;height:100%;width:0;border-radius:6px;transition:width .3s linear}
.m i{background:#f87171}.a i{background:var(--ok)}
.qs{display:flex;gap:6px;margin-top:6px}.qs span{flex:1;height:8px;border-radius:4px;background:#1e2a44}.qs span.on{background:var(--ok)}
.pk ul{padding-left:18px;color:var(--mu)}.pk .p{font-size:1.5rem;font-weight:800;color:var(--ac);margin:8px 0}
.big{font-size:2.4rem;font-weight:800;color:var(--ok);line-height:1}
label{display:block;font-size:.9rem;margin:12px 0 4px;color:var(--mu)}
input,select,textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid #334155;background:#0e1628;color:var(--tx);font:inherit}
input[type=range]{padding:0}
.res{font-size:3rem;font-weight:800;color:var(--ok)}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.filters button{background:#1e2a44;color:var(--tx);border:1px solid #334155;border-radius:999px;padding:7px 14px;cursor:pointer;font:inherit;font-size:.88rem}.filters button.on{background:var(--ac);color:#111;border-color:var(--ac)}
details{background:var(--card);border:1px solid #23314f;border-radius:var(--r);padding:16px 20px;margin-bottom:12px}summary{cursor:pointer;font-weight:700}summary h3{display:inline;font-size:1.05rem}details p{color:var(--mu);margin:10px 0 0}
.conf{border-left:4px solid var(--ac)}
footer{padding:36px 0;color:var(--mu);font-size:.9rem}
@media(max-width:900px){.hero,.g2,.g3,.g4{grid-template-columns:1fr}.nav ul{display:none}section{padding:56px 0}.hero{padding:44px 0}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}