:root{--bg:#08101d;--accent:#66d4ff;--accent2:#7ef0c2;--max:1160px}*{box-sizing:border-box}body{margin:0;background:#f7f9fc;color:#172033;font:16px/1.72 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}a{color:#0969da;text-decoration:none}a:hover{text-decoration:underline}.container{width:min(var(--max),calc(100% - 36px));margin:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:100}.site-header{position:sticky;top:0;z-index:50;background:rgba(8,16,29,.97);border-bottom:1px solid #1d2b41}.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;color:#fff}.brand:hover{text-decoration:none}.brand-mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06101b;font-weight:900}.brand strong{display:block;font-size:18px;line-height:1}.brand small{display:block;color:#a9b7ca;margin-top:5px;font-size:12px}.main-nav{display:flex;align-items:center;gap:20px}.main-nav a{color:#c7d3e5;font-size:14px;font-weight:700}.main-nav a.active,.main-nav a:hover{color:#fff;text-decoration:none}.yt-link{border:1px solid #365270;border-radius:999px;padding:9px 13px}.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:24px}.hero{background:radial-gradient(circle at 80% 15%,rgba(102,212,255,.18),transparent 28%),linear-gradient(180deg,#08101d,#0c1727);color:#fff;padding:82px 0 72px}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:54px;align-items:center}.eyebrow{display:inline-block;background:#10233a;border:1px solid #2a4766;border-radius:999px;padding:7px 11px;color:#bfeeff;font-size:13px;font-weight:800;text-transform:uppercase}.hero h1{font-size:clamp(40px,6vw,70px);line-height:1.02;margin:18px 0}.hero p{font-size:19px;color:#bac8db;max-width:720px}.hero-card{background:#10203a;border:1px solid #294260;border-radius:24px;padding:26px}.hero-card li{color:#c2d1e4}.btn{display:inline-flex;border-radius:12px;padding:13px 18px;font-weight:800;text-decoration:none;margin:8px 8px 0 0}.btn:hover{text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#07121d}.btn-secondary{border:1px solid #35516e;color:#fff}.section{padding:62px 0}.section.alt{background:#eef3f9}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head h2{font-size:34px;line-height:1.15;margin:0}.section-head p{color:#5d6a7e;max-width:720px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card,.article-card{background:#fff;border:1px solid #dfe7f0;border-radius:18px;padding:23px;box-shadow:0 8px 24px rgba(21,35,55,.05)}.card h3,.article-card h3{margin:5px 0 8px;line-height:1.3}.card p,.article-card p{color:#5d6a7e;margin:0}.cat-icon{display:inline-grid;place-items:center;min-width:42px;height:42px;padding:0 10px;border-radius:12px;background:#e8f8ff;color:#065c7b;font-weight:900}.card-link{display:inline-block;margin-top:15px;font-weight:800}.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.article-card small{color:#637087;font-weight:700}.page-hero{background:linear-gradient(180deg,#08101d,#0d1a2b);color:#fff;padding:58px 0}.page-hero h1{font-size:46px;line-height:1.08;margin:8px 0 14px}.page-hero p{color:#bac8db;max-width:780px;font-size:18px}.breadcrumbs{font-size:13px;color:#8393aa}.breadcrumbs a{color:#a8bad1}.content-wrap{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:38px;padding:48px 0 70px}.article-body{background:#fff;border:1px solid #e0e7ef;border-radius:20px;padding:34px}.article-body h2{font-size:28px;line-height:1.2;margin:36px 0 12px}.article-body .lead{font-size:19px;color:#33425a}.step{border-left:3px solid #42bfea;padding-left:18px;margin:24px 0}.step strong{display:block;font-size:18px}.note{background:#eef8ff;border:1px solid #cbeafa;border-radius:14px;padding:18px}.sidebar{align-self:start;position:sticky;top:92px}.side-box{background:#fff;border:1px solid #e0e7ef;border-radius:16px;padding:20px;margin-bottom:18px}.side-box a{display:block;padding:7px 0;border-bottom:1px solid #edf1f5}.cta{background:#0e1a2b;color:#fff;border-radius:20px;padding:28px;margin-top:34px}.cta p{color:#c1cede}.search-input{width:100%;max-width:540px;padding:13px 15px;border:1px solid #cbd5e1;border-radius:12px;font:inherit;margin-bottom:24px}.policy{max-width:850px;margin:auto;padding:52px 0 72px}.policy h1{font-size:42px}.policy h2{margin-top:34px}.site-footer{background:#08101d;color:#b9c7da;padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.footer-grid a{display:block;color:#c7d3e5;padding:4px 0}.footer-brand{color:#fff;font-size:20px;font-weight:900}.footer-bottom{border-top:1px solid #1d2b41;margin-top:30px;padding-top:18px;font-size:13px;color:#8393aa}
@media(max-width:900px){.hero-grid,.content-wrap{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,1fr)}.sidebar{position:static}.main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:#08101d;padding:18px 22px;flex-direction:column;align-items:flex-start}.main-nav.open{display:flex}.nav-toggle{display:block}.hero-card{display:none}}
@media(max-width:620px){.container{width:min(100% - 24px,var(--max))}.grid,.article-list,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:42px}.page-hero h1{font-size:36px}.article-body{padding:22px}}