:root{color-scheme:light;--paper:#fbfaf9;--ink:#2a2622;--muted:#665f57;--line:#d8d0c6;--accent:#9b641b;--gold:#d28d2d;--panel:#f2eee8;--sans:'Montserrat',Arial,sans-serif;--serif:'Cormorant Garamond',Georgia,serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65}a{color:inherit;text-underline-offset:4px}button,select{font:inherit}button{cursor:pointer;background:transparent;border:1px solid var(--line);border-radius:4px;padding:9px 15px;font-size:14px;color:var(--ink)}button:hover{background:#eee7de}button:disabled{opacity:.4;cursor:default}button.primary{background:var(--ink);color:white;border-color:var(--ink)}button.primary:hover{background:#4a3c2d}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.skip{position:absolute;left:12px;top:-90px;background:white;padding:12px;z-index:10}.skip:focus{top:12px}.brand{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 3vw;border-bottom:1px solid var(--line)}.wordmark{font-family:var(--serif);font-size:32px;letter-spacing:-.7px;text-decoration:none;white-space:nowrap}.wordmark strong{font-weight:600}.brand>span,.eyebrow,.nav-heading,.visual-label,footer{font-size:12px;font-weight:600;letter-spacing:.12em}.brand>span{color:var(--muted)}.project{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:28px 3vw 30px;max-width:1750px;margin:auto}.eyebrow{color:var(--accent)}h1,h2{font-family:var(--serif);font-weight:500;letter-spacing:-.025em;line-height:1.05;margin:8px 0 12px}h1{font-size:50px}.project p{margin:0;font-size:14px;color:var(--muted)}.project p span{margin:0 7px}.project-note{display:flex;flex-direction:column;align-items:flex-end;gap:3px;font-size:12px;color:var(--muted)}.project-note strong{font-size:16px;color:var(--ink);font-weight:500}.project-note a{margin-top:8px;font-size:13px}.workspace{display:grid;grid-template-columns:230px minmax(0,1fr);gap:32px;max-width:1750px;margin:0 auto;padding:0 3vw}.navigation{border-top:2px solid var(--ink);align-self:start;position:sticky;top:20px;max-height:calc(100vh - 40px);overflow:auto;scrollbar-width:thin;padding-top:17px}.nav-heading{display:flex;justify-content:space-between;margin:0 0 16px}.nav-heading span{color:var(--muted)}#sequence details{border-top:1px solid var(--line);padding:13px 0}#sequence summary{font-size:14px;line-height:1.4;cursor:pointer;list-style:none;display:flex;gap:10px;align-items:baseline}#sequence summary:before{content:'+';color:var(--accent);font-size:17px;width:10px;flex-shrink:0}#sequence details[open] summary:before{content:'−'}#sequence summary small{color:var(--accent);font-size:12px}#sequence .steps{display:grid;margin-top:9px}#sequence button{display:flex;align-items:baseline;gap:9px;border:0;border-radius:0;text-align:left;font-size:13px;padding:9px 9px 9px 20px;line-height:1.5}#sequence button .num{color:var(--muted);font-size:12px;min-width:19px}#sequence button[aria-current=step]{background:var(--ink);color:white;border-left:3px solid var(--gold);padding-left:17px}#sequence button[aria-current=step] .num{color:#e1b573}.nav-note{font-size:12px;color:var(--muted);line-height:1.7;margin:17px 0 0}#step-select,.mobile-label{display:none}main{min-width:0;outline:none}.stepbar{display:flex;align-items:center;justify-content:space-between;gap:15px;padding-bottom:13px}.stepbar>span{font-size:13px;font-weight:500;color:var(--muted)}.stepbar>div{display:flex;gap:8px}.reading-progress{height:2px;background:var(--line);margin-bottom:23px}#progress{height:100%;background:var(--accent);transition:width .2s}.step-heading{max-width:920px;margin-bottom:23px}h2{font-size:39px}.step-heading>p{color:var(--muted);margin:0;max-width:850px;font-size:16px;line-height:1.6}.work-columns{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,1fr);gap:27px;align-items:start}.visual-column{position:sticky;top:18px;min-width:0}.visual-card,.assembly-card{border:1px solid var(--line);border-radius:4px;overflow:hidden}.visual-card{background:var(--ink);color:var(--paper)}.visual-label{font-size:10px;letter-spacing:.095em;display:flex;align-items:center;justify-content:space-between;padding:12px 15px;gap:12px}.visual-label strong{font-weight:500}.visual-label>span{font-weight:400;letter-spacing:0;font-size:12px;white-space:nowrap}.visual-card .visual-label{border-bottom:1px solid #51473c;color:#e5dccf}iframe{width:100%;height:432px;border:0;display:block;background:var(--ink)}.model-note{font-size:12px;line-height:1.6;margin:0;padding:12px 15px 15px;color:#ded5c9;border-top:1px solid #51473c}.assembly-card{margin-top:16px;background:var(--panel)}.assembly-card .visual-label{border-bottom:1px solid var(--line)}#detail-visual{padding:16px 16px 0}#detail-visual svg{display:block;width:100%;height:auto}#detail-visual text{font-family:var(--sans);fill:var(--ink);font-size:14px}#detail-caption{font-size:12px;color:var(--muted);line-height:1.6;margin:0;padding:12px 16px 16px}.meta{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);padding-bottom:17px;border-bottom:1px solid var(--line)}#trade{color:var(--ink);font-weight:500}#references{color:var(--accent)}h3{font-size:16px;font-weight:600;margin:0 0 10px;line-height:1.4}.instructions section{margin-top:24px}.instructions p{margin:0;font-size:15px;line-height:1.75}.prerequisite{padding-left:14px;border-left:2px solid var(--line)}.prerequisite p{color:var(--muted)}.actions{list-style:none;padding:0;counter-reset:step;margin:0}.actions li{position:relative;padding:0 0 19px 38px;font-size:16px;line-height:1.7;counter-increment:step}.actions li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--accent);font-size:13px;font-weight:600;padding-top:3px}.actions li:not(:last-child):after{content:'';position:absolute;left:11px;top:29px;bottom:5px;width:1px;background:var(--line)}.materials{border-top:1px solid var(--line);padding-top:18px}.materials ul{display:flex;flex-wrap:wrap;gap:7px;list-style:none;padding:0;margin:0}.materials li{padding:4px 9px;background:var(--panel);font-size:13px;border-radius:3px}.gate{padding:18px 20px;background:#efe6d7;border-left:3px solid var(--gold)}.gate .eyebrow{font-size:10px;display:block;margin-bottom:6px}.gate h3{font-size:15px}.gate p{font-size:14px}.watch h3{font-size:14px}.watch p{font-size:14px;color:var(--muted)}.end-step{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);margin:32px 0 42px;padding-top:20px}.end-step span{font-size:14px;color:var(--muted)}.basis{border-top:2px solid var(--ink);padding:26px 0 16px;max-width:100%;scroll-margin-top:20px}.basis h2{font-size:32px}.basis>p{font-size:14px;color:var(--muted);max-width:950px}.basis details{border-top:1px solid var(--line);padding:17px 0}.basis summary{cursor:pointer;font-size:15px;font-weight:500}.basis details p,.basis li{font-size:14px;line-height:1.75}.basis li{margin-bottom:10px}.basis details ul{padding-left:22px}.basis a{color:var(--accent)}footer{max-width:1750px;margin:40px auto 0;padding:24px 3vw;display:flex;justify-content:space-between;border-top:1px solid var(--line);color:var(--muted);font-size:11px}footer a{font-size:13px;letter-spacing:0;font-weight:400}
@media(min-width:1500px){iframe{height:470px}}@media(max-width:1180px){.workspace{grid-template-columns:200px minmax(0,1fr);gap:24px}.work-columns{grid-template-columns:1fr}.visual-column{position:static;display:grid;grid-template-columns:1.25fr 1fr;gap:16px}.assembly-card{margin:0;align-self:start}iframe{height:410px}.visual-label{font-size:9px}.visual-label span{font-size:10px}h1{font-size:44px}.instructions{max-width:800px}.instructions section{margin-top:21px}}@media(max-width:800px){.brand{padding:14px 20px}.brand>span{display:none}.wordmark{font-size:29px}.project{padding:25px 20px;display:block}.project-note{align-items:flex-start;margin-top:16px;gap:0}.project-note strong{font-size:14px}.project-note>span{display:none}.project-note a{margin-top:3px}.workspace{display:block;padding:0 20px}.navigation{position:static;max-height:none;border-top:0;padding:0 0 22px;overflow:visible}#sequence,.nav-heading,.nav-note{display:none}#step-select{display:block;width:100%;padding:12px 10px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:14px;border-radius:4px}.mobile-label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}.work-columns{gap:24px}.visual-column{display:block}.assembly-card{margin-top:14px}.assembly-card svg{max-height:210px}.stepbar button{font-size:13px;padding:8px 10px}.stepbar>span{font-size:12px}h1{font-size:43px}h2{font-size:34px}.project p{font-size:12px}.project p span{margin:0 3px}.step-heading>p{font-size:15px}.step-heading{margin-bottom:20px}.visual-label{font-size:10px}.visual-label span{font-size:12px}iframe{height:440px}.end-step{align-items:flex-start}.end-step>span{max-width:60%}footer{padding:20px;font-size:10px}.instructions p,.actions li{font-size:16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}#progress{transition:none}}
#drawing-facts:empty{display:none}#drawing-facts{padding:0 16px 15px}#drawing-facts table{border-collapse:collapse;width:100%;font-size:12px;line-height:1.5}#drawing-facts caption{text-align:left;font-size:10px;letter-spacing:.12em;color:var(--accent);padding:0 0 8px;font-weight:600}#drawing-facts td,#drawing-facts th{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}#drawing-facts th{font-weight:600}#drawing-facts p{font-size:12px;line-height:1.6;color:var(--muted);margin:12px 0 0}
.explorer-link{display:block;color:#efd1a5;padding:0 15px 14px;font-size:13px}.step-drawings{display:flex;flex-wrap:wrap;gap:8px;margin-top:7px}.step-drawings a{font-size:12px;background:var(--panel);padding:6px 9px;color:var(--accent);text-decoration:none;border:1px solid var(--line);border-radius:3px}.step-drawings a:hover{text-decoration:underline}.visual-label strong{font-size:12px}#detail-visual text{font-size:14px}.project p{font-size:14px}.project-note>span{font-size:13px}.nav-note{font-size:13px}.model-note,#detail-caption{font-size:13px}#sequence button{font-size:14px}.meta{font-size:13px}
@media(max-width:800px){.project p{font-size:14px}.project-note>span{display:block}iframe{height:430px}.stepbar>div{gap:5px}}

/* A continuous learning guide: the reason, the work, and the handoff. */
[hidden]{display:none!important}
.project .guide-purpose{font-size:17px;color:var(--ink);margin:0 0 9px;max-width:600px;line-height:1.6}
.project h1{font-size:clamp(2.4rem,3.5vw,3.4rem);max-width:870px}
.project-note{min-width:180px;max-width:290px;text-align:right}
.learning-reason{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;background:var(--ink);color:var(--paper);padding:25px 28px;margin:0 0 26px;border-top:3px solid var(--gold);border-radius:3px}
.learning-reason .eyebrow{color:#e6b56e;display:block;margin-bottom:5px}
.learning-reason h3{font-family:var(--serif);font-weight:500;font-size:27px;line-height:1.2;margin-bottom:10px}
.learning-reason p{font-size:16px;line-height:1.75;margin:0;color:#f1ebe3}
.why-now{border-left:1px solid #756a5b;padding-left:28px;align-self:center}
.why-now h3{font:600 15px var(--sans);line-height:1.5;color:#e6b56e}
.why-now p{font-size:15px}
.planning-card{border:1px solid var(--line);border-radius:4px;overflow:hidden;background:#fff}
.planning-card .visual-label{background:var(--panel);border-bottom:1px solid var(--line)}
.planning-card img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain}
.planning-card>a{display:block;text-decoration:none}
.planning-card>a span{display:block;font-size:14px;padding:12px 16px;color:var(--accent);text-decoration:underline}
.planning-card>p{font-size:14px;color:var(--muted);padding:0 16px 17px;margin:0;line-height:1.7}
.owner-decision{padding:19px 20px;background:var(--panel);border:1px solid var(--line);border-radius:3px}
.owner-decision .eyebrow,.handoff .eyebrow{display:block;margin-bottom:8px}
.watch h4{font-size:15px;color:var(--ink);margin:18px 0 7px;font-weight:600}
.handoff{border-top:2px solid var(--accent);padding-top:19px}
.instructions .handoff p{font-size:16px}
.terms{margin-top:26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:15px 0}
.terms summary{font-size:15px;font-weight:500;cursor:pointer}
.terms dl{margin:15px 0 0}.terms dl div+div{margin-top:12px}
.terms dt,.team-list dt{font-size:15px;font-weight:600}
.terms dd,.team-list dd{margin:4px 0 0;font-size:15px;line-height:1.7;color:var(--muted)}
.team-list{display:grid;grid-template-columns:1fr 1fr;gap:20px 30px;margin:22px 0}
.meta{font-size:14px}.meta .eyebrow{font-size:12px}#trade{font-size:15px;line-height:1.65}#references{font-size:13px;line-height:1.6;margin-top:7px}
.instructions p{font-size:16px}.gate p,.watch p{font-size:15px}.materials li{font-size:14px}.step-drawings a{font-size:13px}
.visual-column{position:static}
@media(min-width:1181px){.work-columns{grid-template-columns:minmax(0,.94fr) minmax(0,1.12fr)}.visual-label{flex-wrap:wrap;gap:3px 12px}}
@media(max-width:1180px){.learning-reason{grid-template-columns:1fr;gap:20px}.why-now{border-left:0;border-top:1px solid #756a5b;padding:17px 0 0}.why-now p{font-size:16px}.planning-card{align-self:start}.planning-card .visual-label{flex-wrap:wrap}}
@media(max-width:800px){.project-note{text-align:left;max-width:none}.project .guide-purpose{font-size:16px}.learning-reason{padding:22px 20px;margin-bottom:22px}.learning-reason h3{font-size:26px}.why-now h3{font-size:15px}.team-list{grid-template-columns:1fr}.visual-column{display:block}.planning-card img{max-height:350px}.stepbar>span{font-size:13px}.visual-label strong{font-size:12px}.step-drawings a{font-size:14px}.project h1{font-size:42px}.basis>p,.basis details p,.basis li{font-size:15px}}
@media(max-width:380px){.workspace{padding:0 14px}.stepbar button{font-size:12px;padding:8px}.stepbar{gap:8px}.stepbar>span{font-size:12px}.project h1{font-size:36px}.learning-reason{padding:18px 16px}}