:root{--chalk:#F3F4F1;--plaster:#E2DED6;--lead:#4A5560;--cord:#C8372D;--brass:#C9A227;--ink:#1B1E22;--soft:#59626B;--disp:'Prata',Georgia,serif;--body:'Nunito Sans',system-ui,sans-serif;--mono:'Inconsolata',ui-monospace,monospace}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--chalk);color:var(--ink);font:400 1.0625rem/1.7 var(--body)}
a{color:var(--cord);text-underline-offset:3px}a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--brass);outline-offset:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--chalk);padding:.6rem 1rem;z-index:9}.skip:focus{left:1rem}
.wrap{width:min(1100px,100% - 2.5rem);margin-inline:auto}
h1,h2,h3{font-family:var(--disp);font-weight:400;line-height:1.12;margin:0 0 .6em}
h1{font-size:clamp(2.3rem,5vw,3.8rem)}h1 em{display:block;font-style:normal;color:var(--cord)}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}h3{font-size:1.25rem}
.mark{font:700 .82rem/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--lead);margin:0 0 1rem;padding-left:1rem;border-left:2px solid var(--cord)}
.prose{max-width:62ch}.prose p{margin:0 0 1rem}
.cord{background:var(--chalk);border-bottom:1px solid var(--plaster);position:relative}
.cord::after{content:"";position:absolute;left:50%;top:100%;width:2px;height:42px;background:var(--cord);opacity:.6}
.cord__in{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 0;gap:1rem}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--ink);text-decoration:none;font:400 1.6rem/1 var(--disp)}.brand svg{width:18px;height:30px}
.cord nav{display:flex;gap:1.5rem}.cord nav a{color:var(--lead);text-decoration:none;font-weight:700}.cord nav a:hover{color:var(--cord)}
.hero{padding:5rem 0 4rem;background:linear-gradient(90deg,transparent calc(50% - 1px),rgba(200,55,45,.18) calc(50% - 1px),rgba(200,55,45,.18) calc(50% + 1px),transparent calc(50% + 1px)),var(--chalk)}
.hero__grid{display:grid;grid-template-columns:1.5fr 1fr;gap:3rem;align-items:center}
.lede{font-size:1.15rem;max-width:58ch}
.level{background:var(--ink);color:var(--chalk);padding:1.6rem 1.7rem;border-top:6px solid var(--brass)}
.level h2{font-size:1.5rem;color:var(--brass)}
.level ul{list-style:none;padding:0;margin:0 0 1rem}.level li{padding:.45rem 0 .45rem 1.6rem;border-bottom:1px solid rgba(243,244,241,.15);position:relative}
.level li::before{content:"";position:absolute;left:.3rem;top:.5rem;width:2px;height:1.1rem;background:var(--cord)}
.level p{font:400 .85rem var(--mono);color:var(--plaster);margin:0}
.wall{padding:4.5rem 0;background:var(--plaster)}
.wall__grid{display:grid;grid-template-columns:1.3fr 1fr;gap:3rem;align-items:center}
.course{margin:0;background:var(--chalk);padding:1rem;border:1px solid var(--lead)}
.course svg{width:100%;height:auto;display:block}.course figcaption{font-size:.9rem;color:var(--soft);margin-top:.6rem}
.course .beam{stroke:var(--ink);stroke-width:6}
.course .claim rect{stroke:var(--ink);stroke-width:1.5}.course .claim text{font:700 13px var(--mono);text-anchor:middle;fill:var(--ink)}
.course .far rect{fill:#F2C9C4}.course .near rect{fill:#F1E3B5}.course .true rect{fill:#CFE0CF}
.course .deg{font:700 12px var(--mono);text-anchor:start;fill:var(--cord)}.course .true .deg{fill:var(--lead)}
.course .string{stroke:var(--cord);stroke-width:2}.course .weight{fill:var(--brass);stroke:var(--ink);stroke-width:1.5}
@media (prefers-reduced-motion:no-preference){.course .bob{transform-origin:330px 8px;animation:swing 3.2s ease-in-out 2 both}.course .claim{animation:lay .5s ease-out both;animation-delay:calc(var(--i) * .18s)}}
@keyframes swing{0%{transform:rotate(5deg)}25%{transform:rotate(-3deg)}50%{transform:rotate(1.5deg)}75%{transform:rotate(-.6deg)}100%{transform:rotate(0)}}
@keyframes lay{from{opacity:0;transform:translateX(-24px)}to{opacity:1;transform:none}}
.check-sec{padding:4.5rem 0}
.tbl-wrap{overflow-x:auto;margin-top:1.5rem;border:1px solid var(--lead);background:#fff}
.tbl{border-collapse:collapse;width:100%;min-width:680px}
.tbl caption{text-align:left;padding:.8rem 1rem;font:400 .85rem var(--mono);color:var(--soft);border-bottom:1px solid var(--lead)}
.tbl th,.tbl td{padding:.8rem 1rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--plaster)}
.tbl thead th{font:700 .8rem var(--mono);text-transform:uppercase;letter-spacing:.08em;background:var(--lead);color:var(--chalk)}
.tbl tbody th{font-family:var(--disp);font-weight:400;font-size:1.05rem}
.lean{display:inline-block;font:700 .75rem var(--mono);padding:.1rem .5rem;text-transform:uppercase;border-radius:2px}
.lean.far{background:var(--cord);color:#fff}.lean.near{background:var(--brass);color:var(--ink)}.lean.ok{background:var(--lead);color:#fff}
.off{padding:4.5rem 0;background:var(--ink);color:var(--chalk)}.off .mark{color:var(--plaster)}
.off-list{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.2rem}
.off-list li{border-top:2px solid var(--cord);padding-top:1rem}.off-list span{font:700 .75rem var(--mono);letter-spacing:.12em;color:var(--brass)}
.off-list h3{margin-top:.5rem}.off-list p{margin:0;font-size:.95rem;color:var(--plaster)}
.mason{padding:4.5rem 0}
.mason__grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.reading{list-style:none;margin:0;padding:0}.reading li{border-top:1px solid var(--plaster)}
.reading a{display:block;padding:.9rem 0;text-decoration:none;color:var(--ink)}.reading span{display:block;font:700 .75rem var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--cord)}
.reading strong{font:400 1.3rem var(--disp)}.reading a:hover strong{text-decoration:underline}
.page{padding:3.5rem 0 4.5rem}.page article{max-width:68ch}.page h2{font-size:1.55rem;margin-top:2rem}.page .meta{font:400 .9rem var(--mono);color:var(--soft)}
.page ul{padding-left:1.2rem}.page li{margin-bottom:.5rem}
.backlink{display:inline-block;margin-top:2rem;font-weight:700}
.foot{background:var(--plaster);color:var(--soft);padding:2.5rem 0;font-size:.9rem;border-top:4px solid var(--ink)}
.foot nav{display:flex;flex-wrap:wrap;gap:1.2rem;margin-bottom:1rem}.foot a{color:var(--ink)}
@media (max-width:860px){.hero__grid,.wall__grid,.mason__grid{grid-template-columns:1fr}.hide-sm{display:none}.cord::after{display:none}}