:root{--moss:#3f5d3a;--moss-d:#26391f;--kraft:#efe6d4;--kraft-2:#e3d6bd;--copper:#b5632d;--ink-n:#1f2a36;--slate-n:#5c6670;--sheet:#fffdf8}
*{box-sizing:border-box}body{margin:0;background:var(--kraft);color:var(--ink-n);font:16px/1.75 "IBM Plex Sans","Gill Sans","Gill Sans MT",Calibri,sans-serif}
a{color:var(--moss);text-underline-offset:3px}a:hover{color:var(--copper)}
.bench{max-width:1100px;margin:0 auto;padding:0 18px}
.lab-mast{border-bottom:2px solid var(--ink-n);background:var(--sheet)}
.lab-mast .bench{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 26px;padding-top:18px;padding-bottom:14px}
.loopmark{font:600 20px/1.1 "IBM Plex Mono",Menlo,Consolas,monospace;color:var(--ink-n);text-decoration:none;letter-spacing:-.01em}
.loopmark b{color:var(--moss);font-weight:600}.loopmark em{font-style:normal;color:var(--copper)}
.index-tabs{display:flex;flex-wrap:wrap;gap:2px 0;font:500 13.5px/1.6 "IBM Plex Mono",Menlo,Consolas,monospace}
.index-tabs a{color:var(--slate-n);text-decoration:none;padding:2px 10px;border-left:1px solid var(--kraft-2)}.index-tabs a:first-child{border-left:0}.index-tabs a:hover{color:var(--moss)}
.loopwrap{display:grid;grid-template-columns:270px 1fr;gap:38px;padding:44px 0 86px}
.stage-list{list-style:none;margin:0;padding:0;position:sticky;top:20px;align-self:start;font:13.5px/1.5 "IBM Plex Mono",Menlo,Consolas,monospace}
.stage-list li{padding:9px 0 9px 26px;position:relative;color:var(--slate-n);border-bottom:1px dotted var(--kraft-2)}
.stage-list li::before{content:"";position:absolute;left:4px;top:13px;width:10px;height:10px;border:2px solid var(--moss);border-radius:50%}
.stage-list li:last-child::after{content:"\21BA  back to design";display:block;margin-top:10px;color:var(--copper)}
.reuse-band h1{font:600 clamp(28px,4.8vw,46px)/1.12 "IBM Plex Sans","Gill Sans",Calibri,sans-serif;margin:0 0 14px;color:var(--moss-d)}
.reuse-band>p{max-width:60ch;color:var(--slate-n);font-size:17px;margin:0 0 30px}
.specimen-row{display:block;background:var(--sheet);border:1px solid var(--kraft-2);border-left:4px solid var(--moss);padding:18px 22px;margin-bottom:14px;text-decoration:none;color:var(--ink-n)}
.specimen-row:hover{border-left-color:var(--copper)}
.specimen-row h2{font-size:19.5px;line-height:1.3;margin:4px 0 6px;color:var(--moss-d)}.specimen-row p{margin:0;font-size:15px;color:var(--slate-n);line-height:1.6}
.sample-id{font:500 11.5px/1.5 "IBM Plex Mono",Menlo,Consolas,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--copper)}
.specimen{max-width:740px;margin:40px auto 86px;background:var(--sheet);border:1px solid var(--kraft-2)}
.specimen-head{padding:26px 34px 20px;border-bottom:2px solid var(--ink-n);background:linear-gradient(90deg,var(--kraft) 0 6px,transparent 6px)}
.specimen-head h1{font:600 clamp(25px,4.4vw,38px)/1.18 "IBM Plex Sans","Gill Sans",Calibri,sans-serif;margin:8px 0 10px;color:var(--moss-d)}
.sheet-summary{margin:0;font-size:17px;color:var(--slate-n)}
.specimen-body{padding:8px 34px 30px}
.specimen-body h2{font-size:19.5px;line-height:1.35;color:var(--moss);margin:30px 0 8px;padding-bottom:4px;border-bottom:1px solid var(--kraft-2)}
.specimen-body ul,.specimen-body ol{padding-left:22px}.specimen-body li{margin:6px 0}
.ledger-note{background:#f4efe2;border:1px solid var(--kraft-2);border-left:4px solid var(--copper);padding:12px 16px;font-size:15.5px}
.material-tag{margin-top:32px;font:12.5px/1.5 "IBM Plex Mono",Menlo,Consolas,monospace;color:var(--slate-n)}
.lab-floor{background:var(--moss-d);color:#c4d0bf;font-size:13.5px}.lab-floor .bench{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 22px;padding-top:22px;padding-bottom:30px}.lab-floor a{color:#fff}
@media(max-width:820px){.loopwrap{grid-template-columns:1fr;gap:20px;padding-top:30px}.stage-list{position:static;display:flex;flex-wrap:wrap;gap:4px 14px}.stage-list li{border-bottom:0;padding:4px 0 4px 20px}.stage-list li::before{top:9px;left:0}.stage-list li:last-child::after{display:none}}
@media(max-width:560px){.specimen{margin-top:20px}.specimen-head{padding:20px 16px 16px}.specimen-body{padding:4px 16px 24px}.specimen-row{padding:16px}}