:root{
 --midnight:#0d1726;--navy:#15263d;--slate:#35536b;--sky:#5fb3c4;--blaze:#e76f2e;
 --gold:#dfb44a;--paper:#f5f0e7;--panel:#fffdf9;--ink:#17212c;--muted:#5f6b76;
 --line:#d9d4ca;--good:#2e776d;--danger:#9f3e32;--wrap:min(1480px,calc(100% - 36px));
 --radius:18px;--shadow:0 16px 44px rgba(7,18,32,.13)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.68}img{max-width:100%;height:auto}a{color:#145f78}a:hover{color:#a8441b}.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:#111;padding:10px 14px;z-index:999}.skip-link:focus{left:8px}.wrap{width:var(--wrap);margin-inline:auto}
.site-header{background:var(--midnight);color:#fff;border-bottom:4px solid var(--blaze);position:sticky;top:0;z-index:50}.header-inner{width:var(--wrap);margin:auto;display:flex;align-items:center;gap:24px;min-height:76px}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-weight:850;letter-spacing:.01em;min-width:285px}.brand img{width:46px;height:46px;display:block;flex:none}.brand small{display:block;color:#bfe1e8;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.nav-toggle{display:none;margin-left:auto;border:1px solid rgba(255,255,255,.55);background:transparent;color:#fff;border-radius:8px;padding:8px 11px;font:inherit}.site-nav{margin-left:auto}.site-nav ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:3px;flex-wrap:wrap}.site-nav a{display:block;color:#fff;text-decoration:none;padding:11px 11px;border-radius:9px;font-weight:750;font-size:.91rem}.site-nav a:hover,.site-nav a[aria-current="page"]{background:rgba(255,255,255,.13)}
main{min-height:60vh}.hero{background:radial-gradient(circle at 86% 15%,rgba(95,179,196,.25),transparent 24rem),linear-gradient(135deg,var(--midnight),var(--navy));color:#fff;padding:clamp(56px,8vw,108px) 0}.hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);gap:clamp(28px,6vw,78px);align-items:center}.eyebrow,.kicker{color:var(--blaze);font-size:.78rem;font-weight:900;text-transform:uppercase;letter-spacing:.13em}.hero h1,.page-hero h1{font-family:Georgia,"Times New Roman",serif;line-height:1.04;letter-spacing:-.035em;margin:0 0 20px;font-size:clamp(2.55rem,6vw,5.3rem)}.hero p{font-size:clamp(1.05rem,1.8vw,1.3rem);color:#dfeaf0;max-width:760px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:2px solid transparent;border-radius:999px;padding:12px 18px;text-decoration:none;font-weight:850;cursor:pointer;font:inherit}.btn-primary{background:var(--blaze);color:#fff}.btn-primary:hover{background:#ff8a47;color:#111}.btn-secondary{border-color:#bddde5;color:#fff;background:transparent}.btn-secondary:hover{background:#fff;color:var(--midnight)}.hero-card{background:rgba(255,253,249,.97);color:var(--ink);padding:24px;border-radius:24px;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.5)}.hero-card h2{font-size:1.2rem;margin-top:0}.system-list{display:grid;gap:12px}.system-row{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start}.system-row b{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#e7f3f5;color:var(--navy)}
.section{padding:clamp(46px,7vw,86px) 0}.section.alt{background:#e9edf0}.section.dark{background:var(--navy);color:#fff}.section-head{max-width:840px;margin-bottom:30px}.section-head h2,.content h2{font-family:Georgia,"Times New Roman",serif;line-height:1.12;letter-spacing:-.02em}.section-head h2{font-size:clamp(2rem,4vw,3.2rem);margin:0 0 10px}.section-head p{font-size:1.08rem;color:var(--muted)}.dark .section-head p{color:#d8e5eb}.grid{display:grid;gap:22px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 7px 22px rgba(7,18,32,.045)}.card h3{margin-top:0;line-height:1.25}.card p:last-child{margin-bottom:0}.card-link{display:block;height:100%;color:inherit;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease}.card-link:hover{transform:translateY(-3px);box-shadow:var(--shadow);color:inherit}.icon-chip{display:inline-grid;place-items:center;min-width:40px;height:40px;padding:0 10px;border-radius:10px;background:#e3eef2;color:var(--navy);font-weight:900;margin-bottom:15px}.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag{display:inline-flex;border:1px solid #c3d6dd;background:#f2f8fa;border-radius:999px;padding:5px 10px;font-size:.82rem;font-weight:750;color:#244b5e}
.page-hero{padding:64px 0 42px;background:linear-gradient(145deg,#e8eef2,#faf7f0);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(2.35rem,5vw,4.7rem);color:var(--midnight);max-width:1050px}.page-hero .lead{font-size:1.2rem;color:var(--muted);max-width:880px}.breadcrumbs{font-size:.88rem;margin-bottom:18px;color:var(--muted)}.breadcrumbs a{color:var(--muted)}.content-layout{display:grid;grid-template-columns:minmax(0,880px) minmax(240px,1fr);gap:42px;align-items:start;padding:48px 0 76px}.content{font-size:1.035rem}.content h2{font-size:clamp(1.65rem,3vw,2.35rem);color:var(--midnight);margin-top:2.2em}.content h3{font-size:1.25rem;color:var(--slate);margin-top:1.8em}.content ul,.content ol{padding-left:1.3em}.content li{margin:.45em 0}.content table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;font-size:.94rem}.content th,.content td{border:1px solid var(--line);padding:12px 13px;text-align:left;vertical-align:top}.content th{background:#e7eff2;color:var(--midnight)}.table-scroll{overflow-x:auto;margin:24px 0}.table-scroll table{margin:0;min-width:650px}.callout{border-left:5px solid var(--blaze);background:#fff4ec;padding:18px 20px;border-radius:0 12px 12px 0;margin:24px 0}.callout.good{border-left-color:var(--good);background:#edf7f5}.callout.note{border-left-color:var(--sky);background:#eef7fa}.callout.warn{border-left-color:var(--gold);background:#fff8e5}.sidebar{position:sticky;top:102px}.sidebar .card{margin-bottom:18px}.sidebar ul{list-style:none;padding:0;margin:0}.sidebar li+li{border-top:1px solid var(--line)}.sidebar a{display:block;padding:9px 0;text-decoration:none;font-weight:680}.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;color:var(--muted);font-size:.9rem}.meta-pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 10px}.related{margin-top:50px;padding-top:28px;border-top:1px solid var(--line)}.source-list{font-size:.93rem;background:#f3f6f8;border:1px solid var(--line);padding:18px 22px;border-radius:14px}
.tool-shell{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(20px,4vw,36px);box-shadow:var(--shadow)}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}label{font-weight:760;color:var(--midnight)}input,select,textarea{width:100%;border:1px solid #aab8c1;border-radius:9px;padding:11px 12px;background:#fff;color:var(--ink);font:inherit}input:focus,select:focus,textarea:focus{outline:3px solid rgba(95,179,196,.24);border-color:var(--sky)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}button.btn{border:none}button.btn-primary{background:var(--blaze);color:#fff}button.btn-primary:hover{background:#bd4e18;color:#fff}button.btn-muted{background:#e5ebee;color:var(--ink)}.result{margin-top:24px;padding:20px;border-radius:14px;background:#edf7f9;border:1px solid #b8d8df}.result:empty{display:none}.result strong.big{font-size:1.6rem;color:#174d60}.checklist{display:grid;gap:10px}.check-row{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--line);padding:12px;border-radius:10px}.check-row input{width:auto;margin-top:5px}.progress{height:14px;border-radius:999px;background:#dbe2e6;overflow:hidden;margin:15px 0}.progress span{display:block;height:100%;background:var(--blaze);width:0}.data-table{width:100%;border-collapse:collapse;font-size:.9rem}.data-table th,.data-table td{border:1px solid var(--line);padding:8px}.data-table input,.data-table select{min-width:90px;padding:7px}.small{font-size:.9rem;color:var(--muted)}
.diagram{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.site-footer{background:#09111d;color:#dce6eb;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:30px}.site-footer a{color:#a9dbe5}.site-footer h2,.site-footer h3{color:#fff}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:35px;padding-top:20px;font-size:.87rem;color:#aebbc3;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media(max-width:1050px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-grid{grid-template-columns:1fr}.content-layout{grid-template-columns:1fr}.sidebar{position:static}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:780px){:root{--wrap:min(100% - 22px,1480px)}.header-inner{min-height:68px}.brand{min-width:0;font-size:.9rem}.brand small{display:none}.nav-toggle{display:block}.site-nav{position:absolute;left:0;right:0;top:100%;background:var(--midnight);border-top:1px solid rgba(255,255,255,.2);display:none;padding:12px 16px}.site-nav.open{display:block}.site-nav ul{display:grid}.site-nav a{padding:12px}.grid-2,.grid-3,.grid-4,.tool-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.page-hero{padding:42px 0 30px}.content-layout{padding-top:30px}.content table{font-size:.88rem}}
@media print{.site-header,.site-footer,.sidebar,.hero-actions,.nav-toggle,.actions{display:none!important}body{background:#fff}.content-layout{display:block;padding:0}.page-hero{background:#fff;padding:20px 0}a{color:#000;text-decoration:none}}