:root{--ink:#eaf7ff;--muted:#a9bfd0;--bg:#06101c;--panel:#0b1d2e;--panel2:#10283d;--line:#21445e;--cyan:#3dd6d0;--violet:#9b8cff;--gold:#ffd166;--max:1460px;--shadow:0 18px 50px rgba(0,0,0,.28)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% 5%,rgba(155,140,255,.15),transparent 28%),radial-gradient(circle at 10% 35%,rgba(61,214,208,.1),transparent 30%),var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.7}a{color:#79e8e2;text-underline-offset:.18em}a:hover{color:#fff}img{max-width:100%;height:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;background:#fff;color:#000;padding:.6rem 1rem;z-index:99}.site-head{position:sticky;top:0;z-index:30;background:rgba(6,16,28,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(121,232,226,.18)}.head-inner{max-width:var(--max);margin:auto;padding:.85rem 1.3rem;display:flex;align-items:center;justify-content:space-between;gap:2rem}.brand{display:flex;align-items:center;gap:.8rem;color:#fff;text-decoration:none;min-width:270px}.brand strong{display:block;font-size:1.06rem}.brand small{display:block;color:var(--muted);font-size:.72rem}.brand-mark{width:42px;height:42px;border:1px solid var(--cyan);border-radius:11px;position:relative;background:linear-gradient(145deg,#102d46,#07131f);box-shadow:0 0 28px rgba(61,214,208,.15)}.brand-mark i{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}.brand-mark i:nth-child(1){left:8px;top:8px}.brand-mark i:nth-child(2){right:8px;top:10px;background:var(--violet)}.brand-mark i:nth-child(3){left:12px;bottom:8px;background:var(--gold)}.brand-mark i:nth-child(4){right:9px;bottom:9px}.brand-mark:after,.brand-mark:before{content:"";position:absolute;height:1px;background:linear-gradient(90deg,var(--cyan),var(--violet));transform-origin:left}.brand-mark:after{width:24px;left:10px;top:13px;transform:rotate(42deg)}.brand-mark:before{width:23px;left:12px;bottom:13px;transform:rotate(-32deg)}nav{display:flex;align-items:center;gap:.25rem;flex-wrap:wrap;justify-content:flex-end}nav a{color:#cadde9;text-decoration:none;padding:.55rem .72rem;border-radius:8px;font-weight:650;font-size:.9rem}nav a:hover,nav a.active{background:#14324a;color:#fff}.menu{display:none;background:#10283d;color:#fff;border:1px solid var(--line);padding:.55rem .8rem;border-radius:8px}main{max-width:var(--max);margin:auto;padding:0 1.3rem 4rem}.hero{min-height:610px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:3rem;padding:5rem 0 4rem}.hero h1,.page-hero h1{font-size:clamp(2.5rem,6vw,5.35rem);line-height:1.02;margin:.25rem 0 1.3rem;letter-spacing:-.045em}.hero p,.page-hero p{font-size:clamp(1.05rem,1.5vw,1.28rem);color:#c1d6e4;max-width:760px}.eyebrow{display:inline-block;color:var(--cyan);font-weight:800;text-transform:uppercase;letter-spacing:.12em;font-size:.76rem}.hero-art img{filter:drop-shadow(0 28px 60px rgba(0,0,0,.38))}.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.6rem}.btn{display:inline-block;text-decoration:none;font-weight:800;padding:.82rem 1.05rem;border-radius:10px;background:linear-gradient(135deg,var(--cyan),#55aef7);color:#03131d}.btn:hover{color:#03131d;transform:translateY(-1px)}.btn.secondary{background:#122b42;color:#fff;border:1px solid #315a76}.section{padding:3.8rem 0}.section-head{max-width:880px;margin-bottom:1.6rem}.section-head h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.1;margin:.3rem 0}.section-head p{color:var(--muted);font-size:1.05rem}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.card{background:linear-gradient(145deg,rgba(16,40,61,.96),rgba(9,25,40,.96));border:1px solid var(--line);border-radius:16px;padding:1.35rem;box-shadow:var(--shadow);min-width:0}.card h2{font-size:1.22rem;line-height:1.25;margin:.45rem 0}.card h2 a{color:#fff;text-decoration:none}.card p{color:#b7ccda}.card-kicker{font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--cyan);font-weight:800}.more{font-weight:800;text-decoration:none}.page-hero{padding:4.2rem 0 2.3rem;max-width:1050px}.page-hero h1{font-size:clamp(2.4rem,5vw,4.6rem)}.breadcrumbs{font-size:.86rem;color:var(--muted);margin-bottom:1rem}.breadcrumbs a{color:#b9d8e9}.article-layout{display:grid;grid-template-columns:minmax(0,920px) minmax(240px,1fr);gap:2.4rem;align-items:start}.article{background:rgba(10,29,46,.75);border:1px solid var(--line);border-radius:18px;padding:clamp(1.2rem,3vw,2.5rem);box-shadow:var(--shadow)}.article h2{font-size:1.75rem;line-height:1.2;margin-top:2.1rem}.article h3{font-size:1.25rem}.article p,.article li{color:#d2e2ec}.article ul,.article ol{padding-left:1.25rem}.callout{border-left:4px solid var(--cyan);background:#0e2a40;padding:1rem 1.2rem;border-radius:0 12px 12px 0;margin:1.5rem 0}.warning{border-left-color:var(--gold)}.side{position:sticky;top:95px}.side-box{background:#0d2438;border:1px solid var(--line);border-radius:14px;padding:1rem 1.1rem;margin-bottom:1rem}.side-box h2{font-size:1rem;margin:.1rem 0 .6rem}.side-box ul{list-style:none;padding:0;margin:0}.side-box li{border-top:1px solid #1d425c;padding:.48rem 0}.side-box li:first-child{border:0}.side-box a{text-decoration:none}.meta{display:flex;gap:.7rem;flex-wrap:wrap;color:var(--muted);font-size:.86rem;margin:1rem 0 1.5rem}.pill{border:1px solid var(--line);border-radius:999px;padding:.22rem .62rem}.toc{background:#0b2235;border:1px solid var(--line);border-radius:12px;padding:1rem 1.2rem;margin:1.4rem 0}.toc strong{display:block;margin-bottom:.4rem}.toc ol{margin:.3rem 0}.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.cat-block{background:#0c2235;border:1px solid var(--line);border-radius:16px;padding:1.35rem}.cat-block h2{margin:.2rem 0 .5rem}.cat-block ul{columns:2;padding-left:1.1rem}.cat-block li{margin:.35rem 0;break-inside:avoid}.tool{background:#0b2235;border:1px solid var(--line);border-radius:16px;padding:1.4rem}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.field label{display:block;font-weight:750;margin-bottom:.3rem}.field input,.field select{width:100%;background:#071827;color:#fff;border:1px solid #315a76;border-radius:8px;padding:.72rem}.result{margin-top:1.2rem;padding:1rem;background:#071827;border:1px solid var(--cyan);border-radius:10px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;min-width:600px}th,td{text-align:left;border-bottom:1px solid var(--line);padding:.7rem}th{color:var(--cyan)}footer{border-top:1px solid var(--line);background:#040b13;padding:3rem 1.3rem 1rem}.foot-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.45fr repeat(3,1fr);gap:2rem}.foot-grid h2{font-size:1rem}.foot-grid ul{list-style:none;padding:0;margin:0}.foot-grid li{display:block;margin:.38rem 0}.foot-grid a{display:inline-block}.foot-brand{font-weight:850;font-size:1.2rem;color:#fff;text-decoration:none}.foot-grid p{color:var(--muted)}.small{font-size:.85rem}.foot-bottom{max-width:var(--max);margin:2rem auto 0;border-top:1px solid #142d40;padding-top:1rem;color:#849cab;font-size:.85rem}@media(max-width:1000px){.hero{grid-template-columns:1fr;min-height:auto}.hero-art{max-width:720px}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:1fr}.side{position:static}.foot-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.head-inner{align-items:flex-start}.menu{display:block}.head-inner nav{display:none;position:absolute;left:0;right:0;top:69px;background:#07131f;padding:1rem;flex-direction:column;align-items:stretch}.head-inner nav.open{display:flex}.brand small{display:none}.brand{min-width:0}.hero{padding-top:3.5rem}.card-grid,.category-grid,.form-grid{grid-template-columns:1fr}.cat-block ul{columns:1}.foot-grid{grid-template-columns:1fr}.article{padding:1.1rem}.hero h1,.page-hero h1{font-size:2.55rem}}