:root{
 --ink:#26172d;--ink2:#4b3554;--paper:#fffaf0;--paper2:#f7efd9;
 --purple:#5b2a86;--purple2:#35164e;--coral:#e75b4d;--gold:#d8a51e;
 --lime:#9ebc2d;--line:#d8cdb8;--white:#fff;--shadow:0 16px 36px rgba(53,22,78,.12);
 --radius:18px;--wrap:1460px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.68 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--purple);text-decoration-thickness:.08em;text-underline-offset:.16em}a:hover{color:var(--coral)}
img,svg{max-width:100%;height:auto}.wrap{width:min(calc(100% - 2rem),var(--wrap));margin:auto}
.skip{position:absolute;left:-9999px;top:.5rem;background:#fff;padding:.7rem 1rem;z-index:999}.skip:focus{left:.5rem}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,240,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:1rem}.brand{display:flex;align-items:center;gap:.7rem;font-weight:850;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--purple),var(--coral));color:#fff;font-size:.8rem;box-shadow:0 5px 0 var(--gold)}
nav ul{display:flex;align-items:center;gap:.25rem;list-style:none;padding:0;margin:0}nav a{display:block;padding:.65rem .78rem;border-radius:10px;text-decoration:none;color:var(--ink2);font-weight:700;font-size:.93rem}nav a:hover,nav a[aria-current=page]{background:#efe3f4;color:var(--purple2)}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:.55rem .8rem;font-weight:800}
.hero{overflow:hidden;background:
 radial-gradient(circle at 82% 18%,rgba(158,188,45,.25),transparent 20rem),
 radial-gradient(circle at 15% 80%,rgba(231,91,77,.22),transparent 24rem),
 linear-gradient(135deg,#34154e,#5b2a86 58%,#742b6f);color:#fff;padding:5.2rem 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:4rem;align-items:center}
.hero h1{font-size:clamp(2.7rem,6vw,5.7rem);line-height:.96;letter-spacing:-.055em;margin:.2rem 0 1.3rem;max-width:850px}.hero p{font-size:clamp(1.05rem,2vw,1.3rem);max-width:720px;color:#f3eaf8}
.eyebrow{display:inline-flex;align-items:center;gap:.45rem;text-transform:uppercase;letter-spacing:.12em;font-weight:850;font-size:.78rem;color:#f7dc75}.eyebrow:before{content:"";width:28px;height:3px;background:currentColor}
.actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:.7rem 1.05rem;border-radius:11px;font-weight:850;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit}
.btn-primary{background:var(--gold);color:#24142c}.btn-primary:hover{background:#f0c33d;color:#24142c}.btn-secondary{border-color:rgba(255,255,255,.65);color:#fff;background:rgba(255,255,255,.07)}.btn-secondary:hover{background:#fff;color:var(--purple2)}
.flow-board{position:relative;min-height:380px;border:1px solid rgba(255,255,255,.28);border-radius:28px;background:rgba(255,255,255,.08);padding:1.6rem;box-shadow:0 28px 70px rgba(20,6,28,.35)}
.flow-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.node{background:#fff;color:var(--ink);padding:1rem;border-radius:14px;border-left:6px solid var(--coral);box-shadow:0 10px 24px rgba(0,0,0,.16)}.node strong{display:block}.node small{color:var(--ink2)}
.bus{grid-column:1/-1;background:var(--gold);color:#26172d;text-align:center;border-radius:999px;padding:.7rem;font-weight:900;letter-spacing:.03em}.pulse{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 7px rgba(158,188,45,.19);margin-right:.45rem}
.section{padding:4.5rem 0}.section.alt{background:var(--paper2);border-block:1px solid var(--line)}.section.dark{background:var(--purple2);color:#fff}.section-head{max-width:850px;margin-bottom:2rem}.section-head h2{font-size:clamp(2rem,4vw,3.3rem);line-height:1.05;letter-spacing:-.04em;margin:.3rem 0}.section-head p{color:var(--ink2);font-size:1.08rem}.dark .section-head p{color:#e8dced}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.45rem;box-shadow:0 3px 0 rgba(91,42,134,.07)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow);transition:.18s ease}.card h3{margin:.35rem 0 .55rem;line-height:1.2}.card p{color:var(--ink2);margin:.4rem 0}.card-link{font-weight:850}.tag{display:inline-block;background:#eee1f4;color:var(--purple2);padding:.25rem .55rem;border-radius:999px;font-size:.76rem;font-weight:850}.tag.coral{background:#fde1dd;color:#8a281f}.tag.lime{background:#edf4cf;color:#405209}
.callout{display:flex;justify-content:space-between;align-items:center;gap:2rem;background:linear-gradient(120deg,#fff,#f0e2f4);border:1px solid #cdb4d8;border-left:9px solid var(--coral);border-radius:22px;padding:2rem}.callout h2{margin:0 0 .4rem}
.page-hero{padding:3.6rem 0 2.8rem;background:linear-gradient(145deg,#ede0f3,#fff8e8);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(2.4rem,5vw,4.6rem);line-height:1;letter-spacing:-.045em;margin:.35rem 0 1rem;max-width:1050px}.page-hero p{max-width:850px;font-size:1.14rem;color:var(--ink2)}
.breadcrumbs{font-size:.86rem;color:var(--ink2);margin-bottom:.5rem}.breadcrumbs a{font-weight:750}
.article-wrap{display:grid;grid-template-columns:minmax(0,850px) minmax(250px,330px);gap:3rem;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(1.35rem,3vw,2.7rem);box-shadow:0 6px 20px rgba(53,22,78,.06)}.article h2{font-size:clamp(1.65rem,3vw,2.3rem);line-height:1.15;margin:2.2rem 0 .7rem;color:var(--purple2)}.article h3{font-size:1.25rem;margin:1.6rem 0 .45rem}.article p,.article li{color:#382640}.article table{width:100%;border-collapse:collapse;margin:1.2rem 0;font-size:.95rem}.article th,.article td{text-align:left;padding:.7rem;border:1px solid var(--line);vertical-align:top}.article th{background:#f0e3f4}.article code{background:#f3ecdc;padding:.1rem .3rem;border-radius:5px}.article blockquote{margin:1.5rem 0;padding:1rem 1.2rem;border-left:5px solid var(--gold);background:#fff8df}
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:1.2rem}.toc h2{font-size:1rem;margin:0 0 .65rem}.toc ul{list-style:none;padding:0;margin:0}.toc li+li{border-top:1px solid #eee6d6}.toc a{display:block;padding:.45rem 0;font-size:.9rem;text-decoration:none}
.note,.warning,.example{padding:1rem 1.1rem;border-radius:12px;margin:1.2rem 0}.note{background:#eee4f3;border-left:5px solid var(--purple)}.warning{background:#fff0d2;border-left:5px solid var(--gold)}.example{background:#edf4d2;border-left:5px solid var(--lime)}
.tool-shell{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(290px,.85fr);gap:1.4rem}.tool-panel,.result-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:1.5rem}.result-panel{background:#352043;color:#fff}.result-panel h2,.result-panel h3{color:#fff}.result-panel .metric{font-size:2rem;font-weight:900;color:#f7dc75}.field{margin-bottom:1rem}.field label{display:block;font-weight:800;margin-bottom:.3rem}.field input,.field select,.field textarea{width:100%;padding:.7rem .75rem;border:1px solid #bcaec2;border-radius:9px;background:#fff;font:inherit;color:var(--ink)}.field textarea{min-height:110px}.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.tool-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1rem}.tool-actions button{border:0}.btn-dark{background:var(--purple);color:#fff}.btn-dark:hover{background:var(--purple2);color:#fff}.btn-light{background:#eee4f3;color:var(--purple2)}
.output-table{width:100%;border-collapse:collapse;margin-top:1rem}.output-table td,.output-table th{padding:.55rem;border-bottom:1px solid rgba(255,255,255,.22);text-align:left}.bar{height:14px;background:#e7dcc8;border-radius:99px;overflow:hidden;margin:.3rem 0}.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--coral),var(--gold))}
.checklist{list-style:none;padding:0}.checklist li{display:flex;gap:.7rem;padding:.7rem 0;border-bottom:1px solid var(--line)}.checklist input{width:1.2rem;height:1.2rem;margin-top:.2rem}
.table-wrap{overflow-x:auto}.search-box{max-width:540px;margin-bottom:1.5rem}.search-box input{width:100%;padding:.8rem;border:1px solid var(--line);border-radius:10px;font:inherit}
.site-footer{background:#22102d;color:#f5eefa;padding:3.5rem 0 1.2rem}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:2rem}.site-footer h3{margin-top:0;color:#f7dc75}.site-footer ul{list-style:none;padding:0}.site-footer a{color:#eadcf0;text-decoration:none}.site-footer a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.16);padding-top:1rem;margin-top:2rem;color:#cdbcd4;font-size:.88rem}
@media(max-width:1000px){.hero-grid,.article-wrap,.tool-shell{grid-template-columns:1fr}.toc{position:static}.grid.four{grid-template-columns:repeat(2,1fr)}.hero{padding:4rem 0}.flow-board{min-height:auto}}
@media(max-width:760px){body{font-size:16px}.menu-btn{display:block}nav{display:none;position:absolute;left:1rem;right:1rem;top:70px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:.6rem;box-shadow:var(--shadow)}nav.open{display:block}nav ul{display:block}nav a{padding:.75rem}.grid,.grid.two,.grid.four,.footer-grid,.row{grid-template-columns:1fr}.hero-grid{gap:2rem}.flow-grid{grid-template-columns:1fr}.bus{grid-column:1}.callout{display:block}.callout .btn{margin-top:1rem}.article{padding:1.15rem}.page-hero{padding:2.6rem 0 2rem}}
@media print{.site-header,.site-footer,.toc,.actions,.tool-actions,.no-print{display:none!important}body{background:#fff}.article,.tool-panel,.result-panel{box-shadow:none;border:0;color:#000}.result-panel{background:#fff}.wrap{width:100%}}