:root{color-scheme:light;--ink:#172e3c;--muted:#4e626b;--paper:#f5f4ef;--line:#c7d2d4;--teal:#16645d;--soft:#e8f0ed}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:#155d66;text-underline-offset:3px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}:focus-visible{outline:3px solid #a95b00;outline-offset:4px}button{min-height:44px;border:1px solid var(--teal);border-radius:7px;background:var(--teal);color:#fff;padding:10px 17px;cursor:pointer;font-weight:650}button:hover{filter:brightness(.94)}button:disabled{cursor:default;background:#e1e4e3;color:#536166;border-color:#a7b5b8}.secondary{background:#fff;color:var(--ink);border-color:#7c9299}.masthead{background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:20px max(24px,calc((100vw - 1360px)/2));gap:24px}.masthead a{color:#fff}.brand{text-decoration:none;font-size:30px;font-weight:750;letter-spacing:-1px}.brand span{display:block;font-size:12px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:#c9d9dc}main{max-width:1360px;margin:auto;padding:40px 24px 50px}.intro{max-width:830px}.intro h1{font-size:clamp(30px,3.2vw,46px);line-height:1.16;letter-spacing:-.035em;margin:8px 0 18px}.intro>p:last-child{font-size:18px;color:var(--muted)}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.11em;text-transform:uppercase;color:#366065;margin:0 0 7px}h2{font-size:24px;letter-spacing:-.025em;margin:0 0 12px}h3{font-size:18px;margin:20px 0 10px}p{margin:0 0 15px}#notice{min-height:32px;padding:10px 0;font-weight:600}#notice.error{color:#8e2920}.context{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:15px 0;border-top:1px solid var(--line)}.context>button{margin-left:auto}.badge{font-size:13px;font-weight:650;background:#dcebe7;color:#15524c;border-radius:20px;padding:4px 12px}.boundary{font-size:14px;color:var(--muted)}.columns{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(430px,1.2fr);gap:24px}.columns>div{min-width:0}section{border:1px solid var(--line);border-radius:12px;background:#fff;padding:26px;margin-bottom:24px}label{display:block;font-weight:600;font-size:14px;margin-bottom:16px}input:not([type=checkbox]),select,textarea{display:block;width:100%;margin-top:6px;border:1px solid #7c9299;border-radius:5px;padding:10px;color:var(--ink);background:#fff;min-height:44px}textarea{resize:vertical}input[type=checkbox]{width:20px;height:20px;vertical-align:middle;margin:0 8px 0 0}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}#dropzone{border:2px dashed #93aaa9;background:#f5f9f7;padding:18px;border-radius:8px;margin:12px 0}.file-label{margin:0;font-size:15px}#files{font-size:13px}.drag-over{outline:3px solid var(--teal)}fieldset{border:1px solid var(--line);border-radius:8px;margin:20px 0;padding:16px;min-width:0}legend{font-weight:650;font-size:14px}.hint{font-size:13px;color:var(--muted)}#steps{padding:0;list-style:none;counter-reset:steps}.step{counter-increment:steps;border:1px solid var(--line);border-left:4px solid #78a499;border-radius:7px;padding:15px;margin:14px 0;background:#f8faf9}.step-heading{display:flex;justify-content:space-between;gap:8px;font-size:12px;color:#38555b;text-transform:uppercase;letter-spacing:.06em;font-weight:700}.step-heading:before{content:counter(steps,decimal-leading-zero)}.step label{margin:10px 0}.move{display:flex;gap:8px}.move button{font-size:13px;min-height:44px;padding:6px 12px}.actions{display:flex;gap:10px;flex-wrap:wrap}.run-list{padding:0;list-style:none}.run-list li{margin:10px 0}.run-list button{width:100%;text-align:left;font-size:14px}progress{display:block;width:100%;height:14px;margin:12px 0 20px;accent-color:var(--teal)}details{border-top:1px solid var(--line);padding:14px 0;overflow-wrap:anywhere}summary{cursor:pointer;font-weight:650;min-height:44px;padding-top:8px}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#eef3f2;padding:12px;border-radius:6px;font:13px/1.55 ui-monospace,monospace}blockquote{margin:12px 0;padding:10px 14px;border-left:3px solid #78a499;background:#f4f8f6}blockquote p{margin:0}cite{font-size:12px;display:block;color:var(--muted);font-style:normal;overflow-wrap:anywhere}#decision{background:var(--soft);border-radius:8px;padding:18px;margin-top:18px}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:10px 5px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}footer{max-width:1360px;margin:auto;padding:20px 24px 35px;color:var(--muted);font-size:13px}.skip{position:absolute;top:-100px;left:20px;z-index:10;background:#fff;padding:12px}.skip:focus{top:10px}[hidden]{display:none!important}@media(max-width:850px){.columns{grid-template-columns:1fr}main{padding:28px 16px}.masthead{padding:16px}.masthead>a:last-child{font-size:14px}section{padding:20px}.field-pair{grid-template-columns:1fr}.context>button{margin-left:0}.intro h1{font-size:32px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
:root{--study-accent:#6b542d}
.model-request{border-top:1px solid var(--line);padding:18px 0;overflow-wrap:anywhere}.model-request h4{font-size:16px;margin:0 0 12px}.model-request .badge{display:inline-block}.model-request:last-child{padding-bottom:0}
.source-lines{max-height:280px;overflow:auto}
.stage-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:12px 0 28px}
.stage-nav button{display:flex;gap:10px;align-items:center;text-align:left;background:#fff;color:#5e6065;border-color:#d2ccc2;font-size:13px;padding:14px}
.stage-nav button[aria-current]{background:#0b0c0e;color:#f7f5f0;border-color:#0b0c0e}.stage-nav button[aria-current] span{color:#d0ad6d}
.studio-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:28px;align-items:start}.studio-main{min-width:0}
.study-sidebar{background:#efeade;border:1px solid #d2ccc2;border-radius:10px;padding:22px;position:sticky;top:20px;overflow-wrap:anywhere}
.study-sidebar h2{font-size:23px;line-height:1.3}.study-sidebar p{font-size:13px}.study-sidebar .sidebar-rule{border-top:1px solid #d2ccc2;padding-top:18px;margin:20px 0}.study-sidebar strong{font-size:13px}.study-sidebar select{font-size:13px}
.field-three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.field-three>*{min-width:0}
.study-case,.baseline-step{padding:18px;margin:16px 0;border:1px solid #d2ccc2;border-radius:8px;background:#fbfaf7}.study-case h3,.baseline-step h3{margin:0;font-size:16px}.row-head{display:flex;gap:12px;justify-content:space-between;align-items:center;margin-bottom:16px}.row-head button{font-size:12px;padding:6px 10px}
.baseline-step .checks{display:flex;gap:20px;flex-wrap:wrap}.baseline-summary,.case-notice{padding:16px;background:#f0ebe0;border-left:3px solid #6b542d;font-size:14px;margin:18px 0}
.workspace-page .eyebrow,.workspace-page a{color:#6b542d}.workspace-page .badge{background:#f0ebe0;color:#49391f}.workspace-page .step{border-left-color:#d0ad6d;background:#fbfaf7}.workspace-page .step-heading{color:#6b542d}.workspace-page #dropzone,.workspace-page blockquote,.workspace-page pre{background:#f7f5f0}.workspace-page blockquote{border-left-color:#d0ad6d}.workspace-page .workspace-brandbar a{color:#d0ad6d}.workspace-page .workspace-brandbar .workspace-brand{color:#f7f5f0}
@media(max-width:950px){.studio-grid{grid-template-columns:1fr}.study-sidebar{position:static}.study-sidebar .sidebar-rule,.study-sidebar>.hint{display:none}.study-sidebar .run-list{max-height:180px;overflow:auto}.stage-nav{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.field-three{grid-template-columns:1fr}.stage-nav button{font-size:12px;gap:7px;padding:12px}.study-case,.baseline-step{padding:13px}.row-head{align-items:flex-start}.row-head h3{padding-top:10px}.study-sidebar{padding:18px}}