:root{font-family:Segoe UI,Arial,sans-serif;color:#183e43;background:#f1f4f2;line-height:1.5;--accent:#176c60;--line:#c9d7d3}*{box-sizing:border-box}body{margin:0}header{background:#163f43;color:white;padding:22px max(24px,calc((100vw - 1300px)/2));display:flex;justify-content:space-between;gap:18px;align-items:center;letter-spacing:.08em}header strong span{font-weight:350}.badge{font-size:.77rem;border:1px solid #8caeaa;border-radius:20px;padding:5px 12px;letter-spacing:0}main{max-width:1348px;margin:auto;padding:34px 24px}.intro{max-width:860px}.eyebrow{font-weight:750;letter-spacing:.1em;font-size:.72rem;color:var(--accent);margin:0 0 10px}h1{font-size:clamp(2rem,4vw,3rem);line-height:1.12;letter-spacing:-.035em;margin:0 0 18px}h2{font-size:1.25rem;line-height:1.3;margin:0 0 14px}h3{font-size:.97rem;margin:0 0 10px}p{margin:0 0 14px}.boundary{background:#fbf4e5;border-left:3px solid #b78b40;padding:11px 15px;font-size:.87rem;color:#684f28}.panel{background:white;border:1px solid var(--line);border-radius:10px;padding:25px;margin-bottom:22px;overflow-wrap:anywhere;min-width:0}.login{max-width:650px}.identity{display:flex;justify-content:space-between;align-items:start;border-bottom:1px solid var(--line);margin:28px 0;padding-bottom:12px;gap:24px;overflow-wrap:anywhere;min-width:0}.identity>div{min-width:0}.identity p{font-size:.88rem}.layout{display:grid;grid-template-columns:360px minmax(0,1fr);gap:24px}label{display:block;font-size:.85rem;font-weight:650;margin:15px 0 6px}input,select,textarea{font:inherit;width:100%;border:1px solid #9bb4ae;border-radius:5px;color:#183e43;background:white;padding:10px;min-width:0}textarea{resize:vertical}button{background:var(--accent);color:white;border:1px solid var(--accent);border-radius:5px;padding:10px 15px;font:inherit;font-size:.87rem;font-weight:650;cursor:pointer;margin-top:14px}.secondary{color:var(--accent);background:white}button:disabled,input:disabled,select:disabled,textarea:disabled{opacity:.6;cursor:not-allowed}:focus-visible{outline:3px solid #d28e28;outline-offset:3px}.hint{font-size:.8rem;color:#536d69;margin-top:10px}#status{margin:22px 0;padding:13px 16px;border:1px solid var(--line);border-radius:6px;background:white;font-size:.9rem;overflow-wrap:anywhere}#status.error{color:#873c32;background:#fff4f0;border-color:#c69b8d}details{border-top:1px solid var(--line);padding-top:15px;margin-top:18px}summary{cursor:pointer;font-size:.89rem;font-weight:650}.subtitle{font-size:.87rem;color:#506b66}.review-meta{display:grid;grid-template-columns:1fr 1fr;gap:20px;background:#eef5f2;border-radius:6px;padding:18px;margin:18px 0}ul{padding-left:19px;margin:0;font-size:.87rem}.check{border-top:1px solid var(--line);margin-top:21px;padding-top:19px}.check h3{line-height:1.45}.saved{font-size:.78rem;color:#4d6b66;overflow-wrap:anywhere;white-space:pre-wrap}.check .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.check textarea{min-height:85px}.actions{display:flex;gap:12px;flex-wrap:wrap}#review-list button{display:block;text-align:left;width:100%;overflow-wrap:anywhere}footer{font-size:.78rem;color:#5a706b;margin:24px 0}.empty p{color:#536d69}[hidden]{display:none!important}@media(max-width:920px){.layout{grid-template-columns:300px minmax(0,1fr);gap:15px}.panel{padding:18px}.review-meta,.check .row{grid-template-columns:1fr;gap:8px}}@media(max-width:700px){main{padding:25px 16px}header{padding:19px 20px}.layout{grid-template-columns:1fr}.identity{flex-wrap:wrap}.panel{padding:20px}.badge{max-width:145px}.review-meta{grid-template-columns:1fr}h1{font-size:2.4rem}}
header a{color:#fff;font-size:.85rem;letter-spacing:0;text-underline-offset:3px}header a:visited{color:#e0f0e9}header a:hover{color:#d8f5e9}

/* PR02: put engineering inputs, optional references and output first. */
main{max-width:1290px}.intro{max-width:none}.intro h1{font-size:2.25rem}.intro .boundary{display:inline-block;padding:7px 12px;margin-bottom:0}header{padding-top:17px;padding-bottom:17px}.identity{margin:18px 0;padding-bottom:0;border:0}.identity strong{font-size:.9rem}.identity .actions button{margin:0}.compact{border:0;margin:5px 0;padding:0}.compact summary{font-size:.76rem;font-weight:400}.flow{display:flex;gap:10px;margin:20px 0}.flow a{flex:1;padding:11px 16px;background:#e4eee7;border-radius:7px;text-decoration:none;color:#1b584a;font-weight:650;font-size:.9rem}.flow small,label span{font-weight:400;font-size:.75rem;color:#5a7362}.setup-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:20px}.setup-grid .panel{margin:0}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dropzone{border:1.5px dashed #98b5a3;background:#f7faf7;border-radius:7px;padding:16px;margin-top:16px}.dropzone.drag{background:#e0f0e4;border-color:var(--accent)}.dropzone p{font-size:.81rem;margin:5px 0}.dropzone input{font-size:.76rem;padding:6px}.dropzone label{font-size:.8rem}.dropzone input::file-selector-button{border:0;background:#dceadf;color:#1c5c45;border-radius:4px;padding:7px}.file-row{display:grid;grid-template-columns:minmax(0,1fr) 95px auto;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.file-row strong{font-size:.82rem}.file-row p{font-size:.75rem;margin:3px 0}.file-row label{font-size:.7rem;margin:0}.file-row input{padding:6px}.file-row button{font-size:.74rem;padding:7px;margin:0}.prepare-bar{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:16px 22px;border:1px solid #bfd2c5;background:#e9f2eb;border-radius:8px;margin:18px 0 25px}.prepare-bar strong{font-size:.86rem}.prepare-bar p{margin:4px 0 0}.prepare-bar button{margin:0;white-space:nowrap;min-width:170px}.output-heading{display:flex;justify-content:space-between;gap:20px;align-items:start}.output-heading>div{min-width:0}.output-heading .actions button{margin-top:0}.stats{display:flex;gap:10px;flex-wrap:wrap;margin:17px 0}.stat{background:#eaf3ed;border-radius:6px;padding:8px 14px;font-size:.79rem}.stat strong{font-size:1.1rem;padding-right:5px}.saved-source{border:1px solid var(--line);border-radius:6px;padding:12px;display:flex;justify-content:space-between;gap:12px;margin:8px 0}.saved-source>div{min-width:0}.saved-source strong{font-size:.84rem}.saved-source p{font-size:.76rem;margin:4px 0}.saved-source button{margin:0;padding:7px 10px;font-size:.76rem}.output-tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin:22px 0 15px;padding-bottom:8px}.output-tabs button{background:white;color:var(--accent);border-color:transparent;margin:0}.output-tabs button[aria-selected=true]{background:#e5f0e8;border-color:#accab8}.comment-row{display:grid;grid-template-columns:45px minmax(0,1fr) auto;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:.85rem}.comment-row p{margin:4px 0;white-space:pre-wrap}.comment-row .label{font-size:.75rem;color:#4f705a}.comment-row button{margin:0}.check-wrap{border:1px solid var(--line);border-radius:7px;padding:12px 15px;margin:10px 0}.check-wrap summary{font-weight:600}.check-wrap summary span{display:block;font-size:.74rem;color:#526d60;margin-top:4px}.check{border:0;margin:0;padding-top:10px}.review-meta{background:none;padding:12px 0 0}#review-list{display:flex;gap:10px;flex-wrap:wrap}#review-list button{width:auto;max-width:100%}dialog{width:850px;max-width:94vw;border:1px solid var(--line);border-radius:12px;padding:24px;color:#183e43}dialog::backdrop{background:#15352e88}dialog pre{white-space:pre-wrap;overflow-wrap:anywhere;font: .8rem Consolas,monospace;background:#f2f6f3;padding:14px;max-height:60vh;overflow:auto}@media(max-width:760px){.setup-grid,.field-pair{grid-template-columns:1fr}.prepare-bar,.output-heading,.saved-source{flex-wrap:wrap}.prepare-bar button{width:100%}.flow{gap:5px}.flow a{padding:10px 7px;font-size:.78rem}.flow small{display:block}.file-row{grid-template-columns:minmax(0,1fr) 80px}.file-row button{grid-column:1/-1;justify-self:start}.comment-row{grid-template-columns:35px minmax(0,1fr)}.comment-row button{grid-column:2;justify-self:start}.intro h1{font-size:1.9rem}}

/* Keep long source identities inside the preview dialog at narrow widths. */
dialog{overflow-wrap:anywhere}#preview-title{min-width:0;flex:1;overflow-wrap:anywhere}#preview-dialog .output-heading{min-width:0}#close-preview{flex-shrink:0}

/* PR03: one task-focused form; supporting material stays optional. */
main{max-width:1080px}.intro h1{font-size:2rem}.review-composer .panel{padding:26px 30px}.dropzone label{margin-top:0;font-size:.9rem}.review-composer .prepare-bar{margin:22px 0 0;padding:14px 16px}.optional-section>summary span,#project-details>summary span{font-weight:400;font-size:.78rem;color:#536d69;margin-left:6px}#output-panel:has(#review[hidden]){display:none}.review-composer details{margin-top:15px;padding-top:13px}.review-composer .file-list:empty{display:none}@media(max-width:700px){.review-composer .panel{padding:20px}.intro h1{font-size:1.8rem}}

/* Keep lesson choices beside their labels on desktop and narrow screens. */
#approved-learning label:has(input[type=checkbox]){display:flex;align-items:flex-start;gap:10px;font-weight:500}
#approved-learning input[type=checkbox]{width:auto;flex:0 0 auto;margin:4px 0 0;padding:0}
#approved-learning button{margin-right:8px}

[data-learning-chain]{overflow-wrap:anywhere}[data-learning-chain] pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:32rem;overflow:auto}