:root{--bg:#111513;--panel:#171c18;--line:#2a332c;--text:#d9dfd7;--dim:#839080;--lime:#b8e99e;--paper:#faf8f0;--mono:ui-monospace,SFMono-Regular,Menlo,monospace}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:12px/1.5 -apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN",sans-serif}button,input,textarea{font:inherit}button,a{cursor:pointer}button{border:1px solid var(--line);background:transparent;color:var(--text);padding:9px 12px}button:hover{border-color:var(--lime)}button:disabled{opacity:.35;cursor:not-allowed}a{color:var(--dim);text-decoration:none}a:hover{color:var(--lime)}:focus-visible{outline:2px solid var(--lime);outline-offset:3px}header{height:70px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;font:10px 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0}.event-image{width:45px;height:45px;float:right;margin:3px 0 5px 8px}.event-stats{font:8px var(--mono);color:var(--dim);line-height:1.9}.event details{clear:both;padding-top:9px;font:8px var(--mono);color:var(--dim)}.event summary{cursor:pointer}.event pre{white-space:pre-wrap;max-height:200px;overflow:auto;font:9px/1.6 var(--mono);color:#9fb493}.trace-footer{border-top:1px solid var(--line);padding-top:20px}.trace-footer p{font-size:9px;line-height:1.9;color:var(--dim)}footer{padding:20px 28px;border-top:1px solid var(--line);font:8px var(--mono);display:flex;justify-content:space-between;color:var(--dim);gap:15px}footer b{color:var(--lime);font-weight:400}@media(min-width:1500px){main{grid-template-columns:300px minmax(480px,1fr) 320px}.observation{padding:24px 45px}.paper-frame{max-width:700px;margin:auto}textarea{height:420px}}@media(max-width:1150px){main{grid-template-columns:240px minmax(350px,1fr)}.trace{grid-column:1/-1;border-top:1px solid 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span{display:none}.observation-foot{gap:9px;font-size:7px}.canvas-toolbar{font-size:10px;gap:10px}.toggle button{padding:5px;font-size:7px}.section-title{font-size:8px}.delta{font-size:8px;gap:6px}.coordinate-row{font-size:7px}footer{flex-wrap:wrap;font-size:7px;padding:20px 16px}}
/* A bounded observation image keeps material metrics visible in one agent screenshot. */
.paper-frame{max-width:460px;margin:0 auto}.coordinate-row{max-width:460px;margin:0 auto 8px}.comparison img{max-height:150px;object-fit:contain;background:var(--paper)}