:root{--ink:#101418;--conc:#E4E8EB;--paper:#fff;--or:#E8590C;--ord:#B84508;--hl:#FFE45C;--mid:#55616C;--rule:#101418;--soft:#F1F3F5}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:16px}
body{margin:0;background:var(--conc);color:var(--ink);font:17px/1.62 "Atkinson Hyperlegible",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}a{color:var(--ord);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--ink)}
.mono,.lbl,nav a,.btn,th,.stamp,.rail h4,.fno{font-family:"IBM Plex Mono",ui-monospace,monospace}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.topbar{background:var(--ink);color:#C9D1D8;font:12px/1 "IBM Plex Mono",monospace;letter-spacing:.04em;text-transform:uppercase}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:9px;padding-bottom:9px}
.topbar b{color:var(--hl);font-weight:500}
.mast{background:var(--paper);border-bottom:3px solid var(--ink);position:sticky;top:0;z-index:50}
.mast .wrap{display:flex;align-items:stretch;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;padding:12px 0;text-decoration:none;color:var(--ink);font:700 26px/1 "Newsreader",Georgia,serif;letter-spacing:-.01em}
.brand i{width:24px;height:24px;background:var(--or);display:block;clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%)}
.mast nav{display:flex;align-items:stretch}
.mast nav a{display:flex;align-items:center;gap:6px;padding:0 13px;border-left:1px solid #C5CCD2;color:var(--ink);text-decoration:none;font-size:12px;letter-spacing:.03em;text-transform:uppercase}
.mast nav a em{font-style:normal;color:var(--or)}
.mast nav a:last-child{border-right:1px solid #C5CCD2}
.mast nav a:hover,.mast nav a.on{background:var(--ink);color:#fff}
.menu-btn{display:none;background:var(--ink);color:#fff;border:0;font:12px "IBM Plex Mono",monospace;text-transform:uppercase;padding:0 16px;cursor:pointer}
.disc{background:var(--hl);border-bottom:1.5px solid var(--ink);font-size:14px}
.disc .wrap{padding-top:7px;padding-bottom:7px}
.disc a{color:var(--ink)}
.shell{max-width:1180px;margin:0 auto;padding:30px 20px 60px;display:grid;grid-template-columns:250px minmax(0,1fr);gap:34px;align-items:start}
.rail{position:sticky;top:84px;display:grid;gap:16px}
.card{background:var(--paper);border:1.5px solid var(--ink);padding:16px 18px}
.rail .fno{font-size:12px;color:var(--mid);text-transform:uppercase;letter-spacing:.05em}
.rail .card b.n{display:block;font:600 22px/1.2 "IBM Plex Mono",monospace;margin:2px 0 10px}
.rail dl{margin:0;font-size:14px}.rail dt{font:11px "IBM Plex Mono",monospace;text-transform:uppercase;color:var(--mid);margin-top:8px}.rail dd{margin:0}
.rail h4{margin:0 0 8px;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--mid);font-weight:500}
#toc{list-style:none;margin:0;padding:0;font-size:14.5px}
#toc a{display:block;padding:5px 0 5px 12px;border-left:3px solid #D0D6DB;color:var(--ink);text-decoration:none;line-height:1.3}
#toc a:hover{border-color:var(--ink)}#toc a.on{border-color:var(--or);font-weight:700}
.doc{min-width:0}
.kick{font:12px "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.07em;color:var(--ord);margin:0 0 8px}
h1,h2,h3{font-family:"Newsreader",Georgia,serif;line-height:1.12;letter-spacing:-.012em;margin:0}
h1{font-size:clamp(34px,5vw,56px);font-weight:700;margin-bottom:14px}
h2{font-size:clamp(26px,3vw,34px);font-weight:700;margin:46px 0 12px;padding-top:12px;border-top:3px solid var(--ink)}
.doc{counter-reset:h}.doc h2{counter-increment:h}.doc h2:before{content:"§ " counter(h,decimal-leading-zero);display:block;font:500 13px "IBM Plex Mono",monospace;color:var(--or);margin-bottom:5px;letter-spacing:.06em}
h3{font-size:22px;margin:26px 0 8px}
.lede{font-size:20px;line-height:1.5;max-width:46em;margin:0 0 18px}
.doc p,.doc li{max-width:46em}
mark{background:var(--hl);padding:0 2px}
.stamp{display:inline-block;border:2px solid var(--or);color:var(--or);padding:3px 10px;font-size:12px;text-transform:uppercase;letter-spacing:.08em;transform:rotate(-2deg);background:var(--paper)}
.hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:26px;align-items:start;margin-bottom:6px}
.score{background:var(--paper);border:1.5px solid var(--ink)}
.score .hd{background:var(--ink);color:#fff;font:12px "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.06em;padding:8px 14px;display:flex;justify-content:space-between}
.score .row{display:grid;grid-template-columns:1fr auto;gap:4px 12px;padding:10px 14px;border-top:1px solid #CBD2D8;align-items:center}
.score .row:first-of-type{border-top:0}
.score .row span.t{font-size:15px}.bar{display:flex;gap:2px}.bar i{width:10px;height:14px;background:#D8DEE3}.bar i.f{background:var(--or)}
.score .row small{grid-column:1/-1;color:var(--mid);font-size:13.5px;line-height:1.4}
.score .tot{display:flex;justify-content:space-between;align-items:baseline;padding:12px 14px;border-top:3px solid var(--ink);font-weight:700}
.score .tot b{font:700 34px "Newsreader",serif}
.btn{display:inline-block;background:var(--ink);color:#fff;border:1.5px solid var(--ink);padding:12px 18px;text-decoration:none;font-size:13px;letter-spacing:.04em;text-transform:uppercase;cursor:pointer}
.btn:hover{background:var(--or);border-color:var(--or);color:#fff}
.btn.alt{background:var(--paper);color:var(--ink)}.btn.alt:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.acts{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}
.callout{background:var(--paper);border:1.5px solid var(--ink);border-left:8px solid var(--or);padding:14px 18px;margin:20px 0}
.callout p{margin:0 0 8px}.callout p:last-child{margin:0}
.pc{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1.5px solid var(--ink);background:var(--paper);margin:18px 0}
.pc div{padding:14px 18px}.pc div+div{border-left:1.5px solid var(--ink)}
.pc h3{margin:0 0 6px;font:600 13px "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.06em}
.pc ul{margin:0;padding-left:20px}.pc li{margin:4px 0}
.tw{overflow-x:auto;margin:18px 0;border:1.5px solid var(--ink);background:var(--paper)}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:560px}
th{background:var(--ink);color:#fff;text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.05em;padding:9px 12px;font-weight:500}
td{padding:10px 12px;border-top:1px solid #CBD2D8;vertical-align:top}tr:nth-child(even) td{background:var(--soft)}
td:first-child{font-weight:700}
.tool{background:var(--paper);border:1.5px solid var(--ink);margin:22px 0}
.tool .hd{background:var(--or);color:#fff;font:12px "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.06em;padding:8px 14px}
.tool .bd{padding:16px 18px}
.fg{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-bottom:12px}
label,.lbl{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-family:"IBM Plex Mono",monospace}
input,select,textarea{width:100%;font:16px "Atkinson Hyperlegible",sans-serif;padding:10px 12px;border:1.5px solid var(--ink);background:#fff;border-radius:0;color:var(--ink)}
input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:3px solid var(--hl);outline-offset:1px;box-shadow:0 0 0 1.5px var(--ink)}
.out{background:var(--soft);border:1.5px dashed var(--ink);padding:12px 14px;margin-top:10px;font-size:16px}
.out b{font-family:"IBM Plex Mono",monospace;font-size:19px}
.seg{display:flex;flex-wrap:wrap;gap:0}.seg button{flex:1 1 140px;font:13px "IBM Plex Mono",monospace;text-transform:uppercase;padding:11px 8px;border:1.5px solid var(--ink);margin:0 -1.5px -1.5px 0;background:var(--paper);cursor:pointer;color:var(--ink)}
.seg button[aria-pressed=true]{background:var(--ink);color:#fff}
.pane{display:none;margin-top:14px}.pane.on{display:block}
.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0}
.steps li{counter-increment:s;position:relative;padding:0 0 14px 56px;max-width:46em}
.steps li:before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:0;width:40px;height:40px;background:var(--ink);color:#fff;font:600 15px/40px "IBM Plex Mono",monospace;text-align:center}
.steps li b{display:block}
details{background:var(--paper);border:1.5px solid var(--ink);margin:-1.5px 0 0}
summary{cursor:pointer;padding:13px 16px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}summary:after{content:"+";font:600 20px "IBM Plex Mono",monospace;color:var(--or)}
details[open] summary:after{content:"–"}details>div{padding:0 16px 14px}details p{margin:0 0 8px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:16px 0}
.cols .card h3{margin:0 0 6px;font-size:20px}.cols .card p{margin:0;font-size:15.5px}
.fine{font-size:14px;color:var(--mid)}
.src{font-size:14px}.src li{margin:3px 0}
.form{display:grid;gap:12px;max-width:620px}.hp{position:absolute;left:-9999px}
.msg{padding:12px 14px;border:1.5px solid var(--ink);background:var(--paper);display:none}.msg.ok{display:block;border-left:8px solid #2B8A3E}.msg.err{display:block;border-left:8px solid #C92A2A}
footer{background:var(--ink);color:#C9D1D8;margin-top:0}
footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;padding-top:34px;padding-bottom:30px}
footer h4{margin:0 0 10px;font:500 12px "IBM Plex Mono",monospace;color:var(--hl);text-transform:uppercase;letter-spacing:.07em}
footer a{color:#fff;display:block;padding:3px 0;text-decoration:none}footer a:hover{color:var(--hl)}
footer p{margin:0 0 8px;font-size:14.5px}.legalline{border-top:1px solid #36424C;font-size:13px;padding:14px 20px;max-width:1180px;margin:0 auto;color:#9AA6B0}
#cn{position:fixed;left:0;right:0;bottom:0;background:var(--ink);color:#fff;z-index:99;padding:12px 20px;display:none;border-top:3px solid var(--or);font-size:14.5px}
#cn.on{display:flex;gap:16px;align-items:center;justify-content:space-between}#cn a{color:var(--hl)}#cn button{background:var(--hl);color:var(--ink);border:0;font:600 13px "IBM Plex Mono",monospace;text-transform:uppercase;padding:10px 16px;cursor:pointer;flex:none}
@media(max-width:980px){.shell{grid-template-columns:1fr;gap:18px}.rail{display:none}.hero{grid-template-columns:1fr}
.menu-btn{display:block}.mast nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);flex-direction:column;border-bottom:3px solid var(--ink)}.mast nav a{padding:13px 20px;border:0;border-top:1px solid #C5CCD2}body.nav-open .mast nav{display:flex}.mast .wrap{position:relative}
footer .wrap{grid-template-columns:1fr 1fr}}
@media(max-width:600px){body{font-size:16.5px}.rail{grid-template-columns:1fr}.pc{grid-template-columns:1fr}.pc div+div{border-left:0;border-top:1.5px solid var(--ink)}footer .wrap{grid-template-columns:1fr}.topbar span:last-child{display:none}.brand{font-size:23px}#cn{flex-direction:column;align-items:flex-start}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}