:root{color-scheme:dark;--bg:#070b15;--panel:#111a2b;--panel2:#162238;--text:#eaf0fa;--muted:#a7b5c9;--line:#293a55;--accent:#7bb3ff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 50% -10%,#182b49 0,#0b1322 34%,var(--bg) 70%);color:var(--text);font:16px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.shell{max-width:960px;margin:0 auto;padding:28px 20px 68px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:44px}.brand{font-size:20px;font-weight:800;letter-spacing:.13em;text-decoration:none;color:var(--text)}.topnav{display:flex;gap:10px;flex-wrap:wrap}.button{display:inline-block;padding:9px 16px;border:1px solid var(--line);border-radius:11px;background:#17253b;color:var(--text);font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap}.button:hover,.button:focus-visible{border-color:var(--accent);background:#203451}.card{background:linear-gradient(145deg,rgba(23,35,56,.98),rgba(15,24,41,.98));border:1px solid var(--line);box-shadow:0 24px 80px rgba(0,0,0,.3);border-radius:20px;padding:clamp(24px,5vw,54px)}.eyebrow{margin:0 0 8px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}h1{font-size:clamp(30px,5vw,45px);line-height:1.16;letter-spacing:-.025em;margin:0 0 17px}h2{font-size:21px;line-height:1.3;margin:36px 0 10px;color:#f4f7ff}p{margin:11px 0}ul{margin:10px 0;padding-left:22px}li{padding:2px 0}.lead{font-size:17px;color:#cad8e9;margin-bottom:26px}.meta{color:var(--muted);font-size:14px}.note{padding:16px 18px;border-left:3px solid var(--accent);background:var(--panel2);border-radius:0 10px 10px 0}.card a{color:#9ac7ff;text-underline-offset:3px}.footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:25px;color:var(--muted);font-size:14px}.footer a{color:var(--muted)}@media(max-width:600px){.shell{padding:20px 14px 42px}.topbar{align-items:flex-start;flex-direction:column;margin-bottom:20px}.topnav{width:100%}.button{flex:1;text-align:center}.card{border-radius:16px}h2{margin-top:30px}}