:root{color-scheme:light;--bg: #f3efe6;--ink: #1f2a24;--accent: #2f6f5e;--line: #d5cec0;--card: #fffdf8;--error: #8b2e2e;font-family:Segoe UI,IBM Plex Sans,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#e7f0ea,transparent 40%),linear-gradient(180deg,#f7f3ea,#ebe4d7);color:var(--ink)}.app{max-width:1120px;margin:0 auto;padding:2rem 1.25rem 4rem}header,.api-key,nav,.stack{display:flex;gap:.75rem;flex-wrap:wrap;align-items:end}header{justify-content:space-between;margin-bottom:1.5rem}.eyebrow{margin:0;letter-spacing:.08em;text-transform:uppercase;font-size:.75rem;color:var(--accent)}h1,h2,h3{margin:.2rem 0 .8rem}nav{margin-bottom:1.5rem}button,input,textarea,select{font:inherit}button{border:1px solid var(--accent);background:var(--accent);color:#fff;padding:.55rem .9rem;cursor:pointer}nav button{background:transparent;color:var(--ink)}nav button.active{background:var(--accent);color:#fff}label{display:grid;gap:.35rem;min-width:180px}input,textarea,select{border:1px solid var(--line);background:#fff;padding:.55rem .7rem}.card,.list li{background:var(--card);border:1px solid var(--line);padding:1rem;margin-bottom:.75rem}.list{list-style:none;padding:0}.list li{display:grid;gap:.5rem}.meta{color:#5c665f;font-size:.9rem}.error{color:var(--error);background:#f8e8e8;padding:.75rem 1rem;border:1px solid #e2b4b4}.stack{flex-direction:column;align-items:stretch;margin-bottom:1.5rem}button:disabled{opacity:.55;cursor:default}button.ghost{background:transparent;color:var(--accent)}.section-head,.card-head{display:flex;justify-content:space-between;align-items:center;gap:.75rem;flex-wrap:wrap}.section-head{margin-bottom:1rem}.card-head h3{margin:0}label.inline{display:flex;align-items:center;gap:.5rem}.columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1rem;align-items:start}.columns>.stack{margin-bottom:0}.card.stack{margin-bottom:1rem}.row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:end}.row>label{flex:1}.row.actions{align-items:center}fieldset{border:1px solid var(--line);padding:.75rem;margin:0;display:grid;gap:.5rem}legend{padding:0 .35rem}.checks{display:flex;gap:1rem;flex-wrap:wrap}label.check{display:flex;align-items:center;gap:.45rem;min-width:0}.extra-row{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr) auto;gap:.5rem}.notice{color:var(--accent);background:#e6f0eb;padding:.75rem 1rem;border:1px solid #b9d3c7}.announcement{font-size:1.05rem;line-height:1.55;margin:0}.badge{display:inline-block;margin-left:.5rem;padding:.05rem .45rem;font-size:.8rem;border:1px solid var(--accent);color:var(--accent)}.badge.warn{border-color:var(--error);color:var(--error)}.chips{display:flex;flex-wrap:wrap;gap:.4rem}.chip{background:#fff;color:var(--accent);border:1px solid var(--line);padding:.25rem .55rem;font-family:Consolas,Cascadia Mono,monospace;font-size:.85rem}.chip:hover{border-color:var(--accent)}textarea.mono,pre.prompt{font-family:Consolas,Cascadia Mono,monospace;font-size:.88rem;line-height:1.45}pre.prompt{white-space:pre-wrap;word-break:break-word;background:#fff;border:1px solid var(--line);padding:.75rem;margin:0;max-height:32rem;overflow:auto}h4{margin:.5rem 0 0}@media(max-width:760px){.columns{grid-template-columns:1fr}}.list li.inactive{opacity:.6}button.ghost.danger{color:var(--error);border-color:var(--error)}code{font-family:Consolas,Cascadia Mono,monospace;font-size:.85em}