/* VERSION HISTORY
2026-10-05 EDT | chatgpt_codex | overnight-catalog | v1: accessible local Guided Build player.
*/
:root{color-scheme:dark;--bg:#070b14;--panel:#121a2c;--line:#294559;--text:#f5f7fb;--muted:#acc2d2;--brand:#3de7ff;--accent:#ffd700;--danger:#ff9393;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}
[hidden]{display:none!important}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--brand);text-underline-offset:3px}button,input,textarea,select{font:inherit}button{cursor:pointer;border:1px solid var(--line);border-radius:8px;background:#173448;color:var(--text);padding:9px 15px}button:hover,button:focus-visible{border-color:var(--brand)}button:disabled{opacity:.45;cursor:default}.primary{background:var(--brand);color:#06271e;font-weight:700}.top{border-bottom:1px solid var(--line);padding:18px max(22px,calc((100vw - 1400px)/2));display:flex;gap:20px;align-items:center;justify-content:space-between}.brand{font-weight:800;letter-spacing:.02em}.brand span{color:var(--brand)}.muted,small{color:var(--muted)}main{max-width:1400px;margin:auto;padding:28px 22px}.hero{padding:30px 0;max-width:950px}.eyebrow{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);font-weight:700}h1{font-size:clamp(1.9rem,4vw,3.5rem);line-height:1.12;margin:12px 0 20px;letter-spacing:-.035em}h2{line-height:1.25;font-size:1.7rem}h3{line-height:1.35}p{margin:12px 0}.tags,.tools,.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.tag{font-size:.8rem;padding:4px 10px;border:1px solid var(--line);border-radius:30px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.card,.box{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px}.card{display:flex;flex-direction:column}.card h2{font-size:1.35rem;margin-top:10px}.card .actions{margin-top:auto;padding-top:16px}.layout{display:grid;grid-template-columns:260px minmax(0,1fr) 280px;gap:20px;align-items:start}.outline{position:sticky;top:18px;max-height:85vh;overflow:auto}.outline button{display:block;width:100%;text-align:left;background:transparent;border:0;margin-bottom:5px;padding:8px 10px;font-size:.88rem}.outline button.current{background:#244359;color:var(--brand)}.outline .unit{padding:12px 10px 4px;font-size:.72rem;text-transform:uppercase;color:var(--muted);letter-spacing:.05em}article{min-width:0}.step-header{padding-bottom:14px;border-bottom:1px solid var(--line)}.do{border-left:4px solid var(--brand);padding:10px 18px;background:#0b302e;margin:20px 0}.check{border-left:4px solid var(--accent)}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#071522;padding:16px;border-radius:8px;border:1px solid var(--line);font-size:.85rem;line-height:1.6}code{font-family:Consolas,Monaco,monospace}textarea,input[type=text]{width:100%;background:#071522;border:1px solid var(--line);border-radius:6px;padding:12px;color:var(--text)}textarea{min-height:115px;resize:vertical}label{display:block;margin:10px 0}details{border-top:1px solid var(--line);padding:12px 0}summary{cursor:pointer;font-weight:600}.status{min-height:1.6em;color:var(--accent)}.status.error{color:var(--danger)}.status.good{color:var(--brand)}.coach{position:sticky;top:18px}.coach p{font-size:.91rem}.coach textarea{min-height:75px}.chat{max-height:270px;overflow:auto}.chat p{padding:10px;background:#071522;border-radius:8px}.progress{width:100%;height:8px;accent-color:var(--brand)}.resource-list a{display:block;padding:6px 0}.checklist label{display:flex;gap:10px;align-items:flex-start}.checklist input{margin-top:6px;accent-color:var(--brand)}.quiz button{display:block;width:100%;text-align:left;margin:7px 0}.quiz button.selected{border-color:var(--brand)}.finish{margin-top:20px;background:#0c302b}.source-list{font-size:.85rem}footer{max-width:1400px;margin:auto;padding:35px 22px;color:var(--muted);font-size:.83rem}.tabs button[aria-pressed=true]{background:var(--brand);color:#06271e}table{border-collapse:collapse;width:100%;font-size:.85rem}td,th{padding:8px;border-bottom:1px solid var(--line);text-align:left}.search{max-width:420px;margin-bottom:20px}@media(max-width:1150px){.layout{grid-template-columns:220px minmax(0,1fr)}.coach{position:static;grid-column:2}}@media(max-width:720px){.layout{grid-template-columns:1fr}.outline,.coach{position:static;grid-column:1;max-height:none}.outline{max-height:230px}.top{padding:14px;flex-wrap:wrap}main{padding:20px 14px}.box,.card{padding:18px}.hero{padding:14px 0}h1{font-size:2.1rem}.grid{grid-template-columns:1fr}}