:root{--bg:#05070f;--pn:#0b1224;--pn2:#101a33;--ln:#1a2646;--tx:#e8eeff;--mut:#8b98bd;--bl:#2f7bff;--cy:#4dd2ff}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.7 "Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;background-image:radial-gradient(circle at 80% -10%,rgba(47,123,255,.22),transparent 40%)}
.mo,.n{font-family:ui-monospace,"SF Mono",Consolas,"Courier New",monospace}
a{color:var(--cy)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--cy);outline-offset:3px}
.w{max-width:1040px;margin:0 auto;padding:0 22px}
.bar{position:sticky;top:0;z-index:5;background:rgba(5,7,15,.9);border-bottom:1px solid var(--ln);backdrop-filter:blur(6px)}
.bar .w{display:flex;justify-content:space-between;align-items:center;height:62px}
.lg{display:flex;gap:10px;align-items:center;color:var(--tx);text-decoration:none;font-weight:800;letter-spacing:.3px}.lg b{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--bl),var(--cy));display:grid;place-items:center;color:#031022;font-size:16px}
.bar nav{display:flex;gap:22px;align-items:center}.bar nav a{color:var(--mut);text-decoration:none;font-size:14px}
.b{display:inline-block;background:var(--bl);color:#fff;font-weight:700;padding:13px 26px;border-radius:10px;text-decoration:none;border:1px solid var(--bl);cursor:pointer;font:700 15px inherit;font-family:inherit;box-shadow:0 0 24px rgba(47,123,255,.35)}
.b:hover{background:#4a8dff}.bar .b{padding:8px 16px;font-size:13px;color:#fff}.b.g{background:none;color:var(--tx);border-color:var(--ln);box-shadow:none}.b.g:hover{background:var(--pn)}
.hero{text-align:center;padding:84px 0 56px}
.chip{display:inline-block;border:1px solid var(--ln);background:var(--pn);color:var(--cy);border-radius:50px;padding:4px 16px;font-size:13px;margin-bottom:22px}
h1{font-size:clamp(36px,6.6vw,72px);line-height:1.05;margin:0 auto 20px;letter-spacing:-2px;max-width:860px}h1 span{background:linear-gradient(90deg,var(--bl),var(--cy));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--mut);font-size:19px;max-width:600px;margin:0 auto 30px}
.con{max-width:700px;margin:50px auto 0;background:var(--pn);border:1px solid var(--ln);border-radius:16px;text-align:left;overflow:hidden}
.con .h{display:flex;gap:7px;padding:12px 16px;border-bottom:1px solid var(--ln);background:var(--pn2)}.con .h i{width:10px;height:10px;border-radius:50%;background:#2a3a63}
.con .l{display:flex;justify-content:space-between;gap:14px;padding:13px 22px;border-bottom:1px solid var(--ln);font-size:14px}.con .l:last-child{border:0}
.con .x{color:#ff7b8a}.con .o{color:#52e0a0;font-weight:700}
section{padding:64px 0;border-top:1px solid var(--ln)}h2{font-size:clamp(26px,4vw,38px);margin:0 0 10px;letter-spacing:-1px}.sub{color:var(--mut);margin:0 0 28px;max-width:560px}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.tabs button{padding:10px 20px;border-radius:50px;border:1px solid var(--ln);background:var(--pn);color:var(--mut);cursor:pointer;font:600 14px inherit;font-family:inherit}.tabs button[aria-selected=true]{background:var(--bl);border-color:var(--bl);color:#fff}
.pane{display:none;background:var(--pn);border:1px solid var(--ln);border-radius:16px;padding:28px;grid-template-columns:1.4fr .6fr;gap:28px;align-items:center}.pane.on{display:grid}
.pane h3{margin:0 0 8px;font-size:22px}.pane p{margin:0;color:var(--mut)}.pane .pr{font-size:30px;font-weight:800;color:var(--cy);text-align:right}.pane .pr small{display:block;color:var(--mut);font-size:13px;font-weight:400;font-family:"Segoe UI",sans-serif}
.st{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}.st div{background:var(--pn);border:1px solid var(--ln);border-radius:14px;padding:22px}.st .n{color:var(--bl);font-size:14px;font-weight:700;margin-bottom:8px}.st h3{margin:0 0 4px;font-size:17px}.st p{margin:0;color:var(--mut);font-size:14px}
.cal{display:grid;grid-template-columns:1fr 1fr;gap:26px}.cal label{display:block;font-weight:600;font-size:14px;margin-bottom:8px;color:var(--mut)}
.cal input[type=number]{width:100%;padding:14px;border:1px solid var(--ln);border-radius:10px;background:var(--pn);color:var(--tx);font:700 20px ui-monospace,Consolas,monospace;margin-bottom:20px}
.rc{display:grid;grid-template-columns:1fr 1fr;gap:12px}.rc input{position:absolute;opacity:0}.rc label{margin:0;padding:16px;border:1px solid var(--ln);border-radius:12px;background:var(--pn);cursor:pointer;color:var(--tx);font-weight:600}.rc label small{display:block;color:var(--mut);font-weight:400}
.rc input:checked+label{border-color:var(--bl);box-shadow:0 0 0 1px var(--bl) inset,0 0 20px rgba(47,123,255,.25)}.rc input:focus-visible+label{outline:2px solid var(--cy)}
.out{background:linear-gradient(160deg,#0f2150,#07112a);border:1px solid #20366e;border-radius:16px;padding:26px;display:flex;flex-direction:column;justify-content:center}.out .m{color:var(--mut);font-size:13px}.out .n{font-size:24px;font-weight:700;margin-bottom:12px}.out .n.k{color:var(--cy);font-size:42px;margin:0}
details{border-bottom:1px solid var(--ln);padding:18px 0}summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--cy);font-size:22px;line-height:1}details[open] summary:after{content:"\2212"}details p{margin:10px 0 0;color:var(--mut)}
.fin{text-align:center}.fin p{color:var(--mut);margin:0 auto 26px;max-width:500px}
.ft{border-top:1px solid var(--ln);padding:28px 0;color:var(--mut);font-size:14px}.ft .w{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}.ft a{color:var(--mut);margin-right:20px}
.doc{padding:54px 0 70px;max-width:740px}.doc h1{font-size:38px;margin:0 0 6px;text-align:left;letter-spacing:-1px}.doc h2{font-size:21px;margin:30px 0 6px}.doc p,.doc li{color:#b3bedb}
.nt{position:fixed;left:16px;right:16px;bottom:16px;max-width:520px;background:var(--pn2);border:1px solid var(--ln);border-radius:14px;padding:14px 18px;display:none;gap:14px;align-items:center;box-shadow:0 12px 40px rgba(0,0,0,.6);z-index:9;font-size:14px}
.nt.on{display:flex}.nt .b{padding:7px 16px;font-size:13px;white-space:nowrap}
@media(max-width:780px){.pane.on,.cal{grid-template-columns:1fr}.pane .pr{text-align:left}.bar nav a.x{display:none}section{padding:46px 0}.hero{padding:56px 0 40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}