:root{--bg:#08111f;--bg2:#0d1730;--card:#111d34;--card2:#0d1a31;--text:#edf4ff;--muted:#9dafc8;--brand:#49d7ff;--brand2:#8b5cf6;--green:#3df29b;--danger:#ff5f7a;--line:rgba(255,255,255,.12);--shadow:0 24px 70px rgba(0,0,0,.32);--radius:22px;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text);background:radial-gradient(circle at 20% 0%,rgba(73,215,255,.22),transparent 32%),radial-gradient(circle at 80% 10%,rgba(139,92,246,.2),transparent 34%),linear-gradient(180deg,var(--bg),#050914 55%,#070b14);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.container{max-width:var(--max);margin:0 auto;padding:0 22px}.skip{position:absolute;left:-999px}.skip:focus{left:18px;top:18px;background:#fff;color:#000;padding:10px 14px;z-index:10;border-radius:10px}.site-header{position:sticky;top:0;z-index:50;background:rgba(8,17,31,.78);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:76px}.brand{display:flex;gap:11px;align-items:center;font-weight:900;font-size:1.1rem;letter-spacing:-.03em}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#03101c;font-weight:900;box-shadow:0 10px 30px rgba(73,215,255,.28)}.main-nav{display:flex;gap:6px;align-items:center}.main-nav a,.dropdown>button{border:0;background:transparent;color:var(--muted);font:inherit;font-weight:700;padding:11px 13px;border-radius:12px;cursor:pointer}.main-nav a:hover,.dropdown>button:hover,.main-nav 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h1{font-size:clamp(2.35rem,6vw,5.15rem);line-height:1;margin:18px 0;letter-spacing:-.075em}.hero p,.page-hero p{font-size:1.12rem;color:var(--muted);max-width:720px}.actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:27px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:9px;padding:13px 18px;border-radius:14px;font-weight:900;border:1px solid var(--line);background:rgba(255,255,255,.07);color:var(--text);cursor:pointer}.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#06101d;border:0}.btn:hover{transform:translateY(-1px)}.hero-card,.tool-panel,.content-card,.tool-card,.stat-card,.article-card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card{padding:24px;min-height:390px}.speed-ring{position:relative;margin:15px auto;width:260px;height:260px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(from 110deg,var(--brand),var(--brand2),var(--green),var(--brand));animation:spin 7s linear infinite}.speed-ring:after{content:"";position:absolute;inset:16px;border-radius:50%;background:#0b1426}.speed-ring strong{position:relative;z-index:1;font-size:4rem;letter-spacing:-.08em}.speed-ring span{position:relative;z-index:1;color:var(--muted);font-weight:800;margin-left:4px}.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.mini-stats div{background:rgba(0,0,0,.22);border:1px solid var(--line);border-radius:16px;padding:14px;text-align:center}.mini-stats b{display:block;font-size:1.35rem}.mini-stats span{font-size:.82rem;color:var(--muted)}section{padding:46px 0}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}.section-head h2,.content-card h2,.tool-panel h2{font-size:clamp(1.65rem,3vw,2.6rem);line-height:1.08;margin:0;letter-spacing:-.055em}.section-head p{max-width:640px;color:var(--muted);margin:8px 0 0}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tool-card{padding:20px;transition:.2s}.tool-card:hover{transform:translateY(-4px);border-color:rgba(73,215,255,.45)}.tool-card .icon{font-size:1.8rem}.tool-card h3{margin:12px 0 8px}.tool-card p{color:var(--muted);font-size:.95rem}.page-hero{padding:62px 0 28px}.breadcrumbs{color:var(--muted);font-size:.92rem}.breadcrumbs a{color:var(--brand)}.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px}.tool-panel{padding:22px;overflow:hidden}.control-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}.metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:18px 0}.metric{border:1px solid var(--line);border-radius:16px;background:rgba(0,0,0,.22);padding:14px}.metric span{display:block;color:var(--muted);font-size:.78rem;text-transform:uppercase;font-weight:800}.metric strong{font-size:1.8rem;letter-spacing:-.06em}.canvas-wrap{height:330px;border:1px solid var(--line);border-radius:18px;background:radial-gradient(circle,#122643,#081021);position:relative;overflow:hidden}.canvas-wrap canvas{display:block;width:100%;height:100%}.stress-dot{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 22px var(--brand);pointer-events:none}.range-wrap{display:grid;gap:8px;color:var(--muted);font-weight:700}.range-wrap input{width:100%}.notice{background:rgba(73,215,255,.1);border:1px solid rgba(73,215,255,.2);padding:13px 15px;border-radius:14px;color:#d9f8ff}.side-box{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:18px}.side-box h3{margin-top:0}.side-box a{display:block;color:var(--brand);margin:8px 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var(--line);border-radius:18px;background:rgba(0,0,0,.22)}.result-large strong{display:block;font-size:clamp(3rem,12vw,7rem);letter-spacing:-.08em}.key-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(54px,1fr));gap:8px}.key{padding:13px 8px;text-align:center;border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.22);font-weight:800}.key.active{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#06101d}.pixel-screen{height:70vh;border-radius:18px;border:1px solid var(--line);display:grid;place-items:center;cursor:pointer}.site-footer{margin-top:54px;padding:46px 0 24px;background:#050914;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:26px}.site-footer p,.footer-bottom{color:var(--muted)}.site-footer a{display:block;color:var(--muted);margin:8px 0}.site-footer a:hover{color:var(--brand)}.footer-bottom{padding-top:26px;margin-top:26px;border-top:1px solid var(--line)}@keyframes 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.btn{width:100%}}@media(max-width:420px){.container{padding:0 15px}.brand span:last-child{display:none}.tool-panel,.content-card,.hero-card{padding:17px}.metric strong{font-size:1.45rem}}