:root{color-scheme:light;--ink:#18312e;--muted:#566b63;--paper:#f5f5ee;--white:#fcfcf7;--line:#d7ded1;--green:#215446;--mint:#d9eadc;--hot:#ad4728;--mono:"IBM Plex Mono",Consolas,monospace;--sans:"Instrument Sans","Segoe UI",sans-serif}
*{box-sizing:border-box} body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.5 var(--sans)} button,input,select{font:inherit;color:inherit} button{cursor:pointer} button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #a9502f;outline-offset:3px} a{color:#205b49;text-underline-offset:3px} h1,h2,h3,p,figure{margin:0} h1,h2,h3{line-height:1.14} h2{font-size:clamp(25px,3vw,38px);letter-spacing:-.035em} h3{font-size:17px} .wrap{width:min(1440px,100% - 70px);margin-inline:auto}
.masthead{background:#17362f;color:#f5f8ed;border-bottom:4px solid #a8c9aa}.mast-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:29px 0 35px}.eyebrow{font:600 12px/1.4 var(--mono);letter-spacing:.075em}.masthead .eyebrow{color:#b9d5be}.masthead h1{font-size:clamp(36px,5.1vw,68px);font-weight:650;letter-spacing:-.058em;margin:6px 0}.masthead p{color:#cadad0}.text-button{background:transparent;border:1px solid currentColor;border-radius:5px;padding:7px 12px;font-weight:650;white-space:nowrap}.masthead .text-button:hover{background:#2d5145}
.weeks{display:grid;grid-template-columns:repeat(4,1fr);margin-top:25px;gap:6px}.week{border:1px solid var(--line);background:var(--white);text-align:left;padding:12px 15px;border-radius:6px 6px 0 0;display:grid;gap:1px}.week span{font:600 11px var(--mono);letter-spacing:.025em}.week strong{font-size:16px}.week[aria-pressed=true]{color:white;background:var(--green);border-color:var(--green)}.week:hover:not([aria-pressed=true]){background:var(--mint)}
.milestone{background:var(--white);border:1px solid var(--line);border-top:3px solid var(--green);padding:23px;display:grid;grid-template-columns:1.45fr 1fr;gap:24px;border-radius:0 0 6px 6px}.milestone h2{margin:5px 0 8px}.milestone p{color:var(--muted);max-width:70ch}.gate{border-left:1px solid var(--line);padding-left:20px;font-size:14px}.gate p+p{margin-top:7px}.gate strong{color:var(--ink)}.course-note{margin:15px 0 26px;border-bottom:1px solid var(--line);padding:0 0 13px}.course-note summary{cursor:pointer;font-weight:650}.course-note summary span{font-weight:400;color:var(--muted);margin-left:8px}.course-note p{max-width:100ch;margin-top:8px;color:var(--muted)}
.index-head{display:flex;align-items:flex-end;justify-content:space-between;gap:15px}.index-head h2{margin-top:3px}.controls{display:flex;gap:9px}.controls label{display:grid;gap:4px;color:var(--muted);font-size:12px;font-weight:650}.controls :is(input,select){min-width:0;border-radius:5px;border:1px solid var(--line);background:var(--white);padding:8px;color:var(--ink);font-size:14px}.count{color:var(--muted);font-size:13px;margin-top:7px}.series{margin-top:20px}.series h3{margin-bottom:8px}.cards{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}.card{min-height:114px;padding:11px;text-align:left;background:var(--white);border:1px solid var(--line);border-radius:6px;display:grid;align-content:start;gap:3px;transition:transform .12s,box-shadow .12s}.card:hover{transform:translateY(-3px);box-shadow:0 5px 14px #19392d1f;border-color:var(--green)}.card-code{font:700 15px var(--mono);color:var(--green);display:flex;justify-content:space-between}.card-title{font-weight:660;line-height:1.2}.card-task{font-size:12px;line-height:1.3;color:var(--muted);margin-top:3px}.footer{padding-block:27px;color:var(--muted);font:12px var(--mono)}
dialog{border:1px solid var(--line);background:var(--white);color:var(--ink);padding:0;border-radius:8px;width:min(1250px,calc(100% - 34px));max-height:92vh;box-shadow:0 12px 60px #142a2354} dialog::backdrop{background:#142a25aa} body:has(dialog[open]){overflow:hidden}.dialog-top{display:flex;align-items:start;justify-content:space-between;gap:14px;padding:18px 20px;border-bottom:1px solid var(--line)}.dialog-top h2{font-size:clamp(23px,3vw,34px)}.dialog-top .eyebrow{margin-bottom:4px}.close{font-size:13px}.mini-weeks{padding:10px 20px;display:flex;gap:5px;flex-wrap:wrap}.mini-weeks button,.dependencies button{background:var(--white);border:1px solid var(--line);border-radius:5px;padding:5px 9px}.mini-weeks button[aria-pressed=true]{background:var(--green);color:white}.sheet-detail{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(275px,1fr);gap:18px;padding:0 20px 20px;align-items:start}.drawing{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#f8f8f0}.drawing canvas{width:100%;height:auto;display:block}.drawing figcaption{padding:8px 10px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;display:flex;align-items:center;justify-content:space-between;gap:6px}.detail-copy h3:not(:first-child){margin-top:14px}.detail-copy p,.detail-copy li{font-size:14px}.detail-copy .hint{color:var(--muted);font-size:12px;margin:4px 0}.detail-copy details{margin-top:8px;font-size:13px}.detail-copy summary{cursor:pointer}.detail-copy ul{padding-left:20px;margin:5px 0}.feature{display:block;text-align:left;width:100%;border:1px solid var(--line);padding:7px 9px;background:white;border-radius:4px;margin:4px 0;font-size:13px}.feature:hover,.feature[aria-pressed=true]{border-color:var(--hot);background:#fff1e7}.dependencies{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.dependencies button{font:12px var(--mono)}.source-item{margin-top:5px;font-size:13px}.source-item span{display:block;color:var(--muted);font-size:12px}.source-copy{padding:20px}.source-copy p{max-width:90ch;margin:8px 0}.source-copy ul{padding-left:20px}.source-copy li+li{margin-top:6px}#sources-dialog{max-width:760px}
@media(max-width:1050px){.cards{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:750px){.wrap{width:calc(100% - 30px)}.cards{grid-template-columns:repeat(3,minmax(0,1fr))}.milestone,.sheet-detail{grid-template-columns:1fr}.gate{border-left:none;border-top:1px solid var(--line);padding:10px 0 0}.mast-inner,.index-head{align-items:flex-start}.sheet-detail{gap:10px}}
@media(max-width:510px){.mast-inner,.index-head{display:block}.masthead .text-button{margin-top:11px}.controls{margin-top:9px}.controls label{flex:1;min-width:0}.week{padding:6px}.week strong{font-size:12px}.week span{font-size:10px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.dialog-top,.mini-weeks{padding-inline:10px}.sheet-detail{padding-inline:10px}}
@media(prefers-reduced-motion:reduce){.card{transition:none}}
#technical{margin-top:14px}#technical h3{margin-bottom:4px}