:root{--bg:#f5f6f8;--panel:#ffffff;--ink:#16202b;--muted:#596573;--line:#d9dee6;--accent:#05668d;--accent-soft:#d7ebf3;--danger:#b42318}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top right,#e8f0f5 0,var(--bg) 55%);color:var(--ink);font-family:IBM Plex Sans,Segoe UI,sans-serif}main{max-width:1100px;margin:0 auto;padding:28px 16px 48px}h1,h2,h3{margin:0;font-family:Space Grotesk,Avenir Next,sans-serif}.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px}.grid{display:grid;grid-gap:14px;gap:14px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:#fff}textarea{min-height:84px;resize:vertical}button{border:0;border-radius:9px;padding:10px 14px;background:var(--accent);color:#fff;cursor:pointer}button.secondary{background:var(--accent-soft);color:var(--ink)}button:disabled{opacity:.55;cursor:not-allowed}table{width:100%;border-collapse:collapse}td,th{border-bottom:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}.badge{display:inline-block;border-radius:999px;padding:2px 10px;font-size:12px;border:1px solid var(--line)}.tone-pos{background:#e9f8ef}.tone-neg{background:#fcebea}.tone-neutral{background:#e8f2ff}.badge.tone-neg,.badge.tone-neutral,.badge.tone-pos{border-color:transparent;color:#173044;font-weight:600}.run-card{color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:10px 12px}.run-card:hover{filter:brightness(.98)}.mechanism-text{white-space:pre-wrap;line-height:1.5;max-width:62ch;color:#1f3447}.mechanism-list{margin:0;padding-left:18px;display:grid;grid-gap:4px;gap:4px}.causal-list{margin:8px 0 0;padding-left:20px;display:grid;grid-gap:10px;gap:10px}.error{color:var(--danger)}.muted{color:var(--muted)}