:root{--bg:#0f1821;--panel:#161f2c;--panel-2:#1d2635;--ink:#e4f2ff;--muted:#8ba8c8;--line:rgba(255,255,255,.08);--brand:#22c55e;--brand-2:#ec4899;--accent:#fbbf24;--maxw:1180px;--rad:14px;--shadow:0 10px 40px rgba(0,0,0,.4);--grad:linear-gradient(135deg,#22c55e 0%,#ec4899 100%)}
*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
a{color:var(--brand-2);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
header.nav{position:sticky;top:0;z-index:50;background:rgba(15,24,33,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff}
.brand .dot{width:34px;height:34px;border-radius:10px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:900;font-size:11px}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
nav a{color:var(--ink);font-size:14.5px;opacity:.85}nav a:hover{color:var(--brand-2)}
.cta{background:var(--grad);color:#fff !important;padding:10px 16px;border-radius:999px;font-weight:600;font-size:14px;box-shadow:var(--shadow)}
.hero{padding:80px 0 60px;background:radial-gradient(1200px 600px at 80% -10%,rgba(34,197,94,.15),transparent 60%),radial-gradient(900px 500px at 0% 100%,rgba(236,72,153,.12),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--brand);background:rgba(34,197,94,.08);padding:6px 12px;border-radius:999px;border:1px solid rgba(34,197,94,.25);margin-bottom:18px}
h1{font-size:clamp(34px,5vw,56px);line-height:1.05;margin:0 0 18px;letter-spacing:-.02em}
h1 .ac{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18px;color:var(--muted);max-width:560px;margin:0 0 28px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid var(--line)}
.btn-p{background:var(--grad);color:#fff;border:none;box-shadow:var(--shadow)}
.btn-g{color:var(--ink)}.btn-g:hover{border-color:var(--brand-2);color:var(--brand-2);text-decoration:none}
.art{aspect-ratio:5/4;background:linear-gradient(180deg,var(--panel),var(--panel-2));border-radius:24px;border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.art svg{width:100%;height:100%;display:block}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:20px}
.stat .n{font-size:28px;font-weight:800;color:var(--brand)}.stat .l{color:var(--muted);font-size:13px;margin-top:4px}
section{padding:80px 0}
.head{display:flex;justify-content:space-between;align-items:end;margin-bottom:32px;gap:24px;flex-wrap:wrap}
h2{font-size:clamp(28px,3.4vw,38px);margin:0 0 8px;letter-spacing:-.02em}
.sub{color:var(--muted);max-width:680px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);padding:26px;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-3px);border-color:rgba(236,72,153,.4)}
.card .ic{width:44px;height:44px;border-radius:10px;background:rgba(34,197,94,.12);display:grid;place-items:center;margin-bottom:14px;color:var(--brand)}
.card h3{margin:0 0 8px;font-size:18px}.card p{margin:0;color:var(--muted);font-size:14.5px}
.news-g{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}
.art-c{background:var(--panel);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,border-color .2s}
.art-c:hover{transform:translateY(-3px);border-color:rgba(236,72,153,.4)}
.thumb{aspect-ratio:16/9;display:block;overflow:hidden}.thumb svg{width:100%;height:100%;display:block}
.body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{display:inline-flex;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--brand);background:rgba(34,197,94,.08);padding:4px 10px;border-radius:999px;border:1px solid rgba(34,197,94,.25);align-self:flex-start}
.tag.edu{color:var(--brand-2);background:rgba(236,72,153,.08);border-color:rgba(236,72,153,.25)}
.tag.fun{color:var(--accent);background:rgba(251,191,36,.08);border-color:rgba(251,191,36,.25)}
.art-c h3{margin:0;font-size:20px;line-height:1.3}.art-c.feat h3{font-size:26px}
.art-c p{margin:0;color:var(--muted);font-size:14.5px}
.meta{font-size:12px;color:var(--muted);display:flex;gap:10px;margin-top:auto}.meta .s{width:3px;height:3px;border-radius:50%;background:var(--muted);opacity:.5;align-self:center}
.contact{background:linear-gradient(135deg,rgba(34,197,94,.10),rgba(236,72,153,.06));border:1px solid var(--line);border-radius:24px;padding:48px;text-align:center}
footer{border-top:1px solid var(--line);padding:40px 0 32px;color:var(--muted);font-size:13.5px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
@media (max-width:880px){.hero-grid,.g3,.g2,.news-g{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}nav ul{display:none}}
@media(max-width:900px){#shop [style*="grid-template-columns:repeat(4"]{grid-template-columns:repeat(2,1fr)!important}}
@media(max-width:900px){#why-us [style*="grid-template-columns:repeat(4"]{grid-template-columns:repeat(2,1fr)!important}}@media(max-width:520px){#why-us [style*="grid-template-columns:repeat(4"]{grid-template-columns:1fr!important}}
#brx-tyk *{box-sizing:border-box;margin:0;padding:0}
  #brx-tyk{--brx-blue:#123c6e;--brx-blue-dk:#0d2b4e;--brx-red:#c0272d;--brx-red-dk:#9c1f24;
    --brx-lt:#eef3fa;--brx-line:#dbe2ec;--brx-ink:#1f2733;--brx-muted:#5b6675;--brx-ok:#1c7a4d;--brx-bad:#b5242a;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    color:var(--brx-ink);line-height:1.55;max-width:640px;margin:22px auto;background:#fff;
    border:1px solid var(--brx-line);border-radius:14px;overflow:hidden;
    box-shadow:0 2px 6px rgba(18,60,110,.10),0 12px 34px rgba(18,60,110,.08);text-align:left}
  #brx-tyk .brx-hd{background:linear-gradient(135deg,var(--brx-blue),var(--brx-blue-dk));color:#fff;padding:18px 22px;position:relative}
  #brx-tyk .brx-hd .brx-badge{display:inline-block;background:rgba(255,255,255,.16);color:#fff;font-size:11px;font-weight:700;
    letter-spacing:1px;text-transform:uppercase;padding:4px 10px;border-radius:999px;margin-bottom:8px}
  #brx-tyk .brx-hd h3{font-size:19px;line-height:1.25;font-weight:800;margin:0}
  #brx-tyk .brx-hd p{font-size:13px;opacity:.9;margin-top:5px}
  #brx-tyk .brx-prog{height:5px;background:var(--brx-lt)}
  #brx-tyk .brx-prog > i{display:block;height:100%;width:0;background:var(--brx-red);transition:width .3s}
  #brx-tyk .brx-body{padding:20px 22px 22px}
  #brx-tyk .brx-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--brx-muted);margin-bottom:8px}
  #brx-tyk .brx-topic{font-weight:700;color:var(--brx-blue);background:var(--brx-lt);padding:3px 9px;border-radius:6px}
  #brx-tyk .brx-q{font-size:16.5px;font-weight:600;color:var(--brx-ink);margin:6px 0 14px}
  #brx-tyk .brx-opts{list-style:none;display:flex;flex-direction:column;gap:9px}
  #brx-tyk .brx-opt{display:flex;gap:11px;align-items:flex-start;width:100%;text-align:left;
    border:1px solid var(--brx-line);background:#fff;border-radius:9px;padding:12px 14px;font-size:15px;color:var(--brx-ink);
    cursor:pointer;font-family:inherit;line-height:1.4;transition:background .12s,border-color .12s}
  #brx-tyk .brx-opt:hover:not(:disabled){background:var(--brx-lt);border-color:var(--brx-blue)}
  #brx-tyk .brx-opt .brx-let{font-weight:800;color:var(--brx-blue);flex:0 0 auto}
  #brx-tyk .brx-opt:disabled{cursor:default}
  #brx-tyk .brx-opt.brx-correct{background:#e7f6ee;border-color:var(--brx-ok)}
  #brx-tyk .brx-opt.brx-correct .brx-let{color:var(--brx-ok)}
  #brx-tyk .brx-opt.brx-wrong{background:#fceaea;border-color:var(--brx-bad)}
  #brx-tyk .brx-opt.brx-wrong .brx-let{color:var(--brx-bad)}
  #brx-tyk .brx-fb{margin-top:14px;border-left:4px solid var(--brx-blue);background:#f7faff;border-radius:0 8px 8px 0;padding:12px 15px;display:none}
  #brx-tyk .brx-fb.brx-show{display:block}
  #brx-tyk .brx-fb .brx-verdict{font-weight:800;font-size:14px;margin-bottom:4px}
  #brx-tyk .brx-fb .brx-verdict.ok{color:var(--brx-ok)} #brx-tyk .brx-fb .brx-verdict.bad{color:var(--brx-bad)}
  #brx-tyk .brx-fb .brx-why{font-size:14px;color:var(--brx-ink)}
  #brx-tyk .brx-fb .brx-src{font-size:12.5px;color:var(--brx-muted);margin-top:8px}
  #brx-tyk .brx-fb .brx-src a{color:var(--brx-blue);text-decoration:underline}
  #brx-tyk .brx-actions{margin-top:16px;display:flex;justify-content:flex-end}
  #brx-tyk .brx-btn{border:0;border-radius:9px;padding:11px 22px;font-weight:700;font-size:15px;cursor:pointer;font-family:inherit}
  #brx-tyk .brx-btn.brx-primary{background:var(--brx-red);color:#fff}
  #brx-tyk .brx-btn.brx-primary:hover{background:var(--brx-red-dk)}
  #brx-tyk .brx-btn.brx-ghost{background:#fff;color:var(--brx-blue);border:1px solid var(--brx-line)}
  #brx-tyk .brx-btn.brx-ghost:hover{background:var(--brx-lt)}
  /* results */
  #brx-tyk .brx-result{text-align:center;padding:8px 4px}
  #brx-tyk .brx-result .brx-score{font-size:42px;font-weight:800;color:var(--brx-blue-dk);line-height:1}
  #brx-tyk .brx-result .brx-score small{font-size:20px;color:var(--brx-muted);font-weight:600}
  #brx-tyk .brx-result .brx-msg{font-size:16px;margin:10px 0 4px;color:var(--brx-ink);font-weight:600}
  #brx-tyk .brx-cta{background:linear-gradient(135deg,var(--brx-red),var(--brx-red-dk));color:#fff;border-radius:12px;padding:20px;margin-top:18px}
  #brx-tyk .brx-cta strong{display:block;font-size:17px;margin-bottom:4px}
  #brx-tyk .brx-cta p{font-size:13.5px;opacity:.95;margin-bottom:14px}
  #brx-tyk .brx-cta .brx-enroll{display:inline-block;background:#fff;color:var(--brx-red-dk);font-weight:800;font-size:15px;
    padding:12px 22px;border-radius:9px;text-decoration:none}
  #brx-tyk .brx-cta .brx-enroll:hover{background:#f2f2f2}
  #brx-tyk .brx-retake{margin-top:12px}
  #brx-tyk .brx-retake button{background:none;border:0;color:var(--brx-blue);font-weight:700;cursor:pointer;font-size:14px;text-decoration:underline;font-family:inherit}
  #brx-tyk .brx-foot{border-top:1px solid var(--brx-line);padding:11px 22px;font-size:11.5px;color:var(--brx-muted);background:#fafcff}
  #brx-tyk .brx-foot a{color:var(--brx-blue)}
  @media(max-width:520px){#brx-tyk .brx-hd h3{font-size:17px}#brx-tyk .brx-q{font-size:15.5px}}