:root{color-scheme:light;--bg:#f4f7f6;--panel:#fff;--ink:#17211f;--muted:#62716d;--line:#dce4e1;--accent:#0f766e;--soft:#e7f3f1;--danger:#b42318;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink)}button,select,textarea,input{font:inherit}.shell{max-width:1180px;margin:0 auto;min-height:100vh;padding:22px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px;padding:18px 20px;background:#111c1a;color:#f6fbfa;border-radius:8px}.brand{display:flex;gap:12px;align-items:center}.mark{display:grid;place-items:center;width:42px;height:42px;border-radius:8px;background:#2dd4bf;color:#06201d;font-weight:800}.brand strong,.brand span{display:block}.brand span{color:#aac2bd;font-size:13px;margin-top:2px}.header-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.status{display:flex;align-items:center;gap:8px;color:#c8dcd8;font-size:14px}.status span{width:9px;height:9px;border-radius:99px;background:#22c55e}.model-chip,#requestId{white-space:nowrap;border:1px solid var(--line);background:var(--soft);color:#0b5f58;border-radius:999px;padding:9px 12px;font-weight:700;font-size:13px}.app-header .model-chip{border-color:rgba(45,212,191,.3);background:rgba(45,212,191,.12);color:#d9fffa}.main-stack{display:grid;gap:18px}.intro{padding:14px 4px 4px}.intro p,.result-head p{margin:0 0 6px;color:var(--accent);font-size:13px;font-weight:800;text-transform:uppercase}.intro h1{max-width:900px;margin:0;font-size:clamp(30px,4vw,48px);line-height:1.04;letter-spacing:0}.chat-card,.response-card,.utility-card{border:1px solid var(--line);border-radius:8px;background:#fff;padding:20px}h2,h3{margin:0;letter-spacing:0}h2{font-size:22px}h3{font-size:15px;margin:18px 0 10px}.control-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:14px}label{display:block;color:var(--muted);font-size:13px;font-weight:800;margin:0 0 7px;text-transform:uppercase}select,textarea,input[type=text]{width:100%;border:1px solid var(--line);border-radius:7px;background:#fbfdfc;color:var(--ink)}select,input[type=text]{height:44px;padding:0 12px;margin-bottom:18px}textarea{resize:vertical;min-height:150px;padding:12px;line-height:1.5}.actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}.actions button,.file-button{min-height:42px;border:0;border-radius:7px;padding:0 16px;background:var(--accent);color:#fff;font-weight:800;cursor:pointer;display:inline-flex;align-items:center}.actions .secondary{background:#e8eeec;color:#22302d}.attach-row{display:flex;align-items:center;gap:12px;margin-top:14px;flex-wrap:wrap}.attach-row input{display:none}.attach-row span{color:var(--muted);font-size:14px}.result-head{display:flex;justify-content:space-between;gap:14px;align-items:start}.answer{margin:16px 0;color:#283936;line-height:1.65}.answer.blocked{color:var(--danger);font-weight:700}.compact-text{font-size:14px;margin-bottom:0}.meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}.meta-grid div{border:1px solid var(--line);border-radius:7px;padding:12px;background:#fbfdfc}.meta-grid span{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}.meta-grid strong{overflow-wrap:anywhere}.file-list{display:grid;gap:10px}.file-list.compact{margin-top:12px}.file-card{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:7px;background:#fbfdfc;padding:11px 12px}.file-card strong{display:block;overflow-wrap:anywhere}.file-card span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.file-card a{color:#0b5f58;font-weight:800;text-decoration:none;white-space:nowrap}.utility-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:18px;align-items:start}.utility-card summary{cursor:pointer;font-weight:900;color:#0b5f58;margin:-2px 0 14px}.utility-card textarea{min-height:110px}.rich-answer{min-height:260px;max-height:680px;overflow:auto;border:1px solid var(--line);border-radius:8px;background:linear-gradient(180deg,#fbfdfc 0%,#f6faf8 100%);padding:0;margin-bottom:18px;color:#17211f}.rich-answer h4{position:relative;margin:0;padding:16px 18px 10px 46px;border-top:1px solid var(--line);font-size:16px;color:#0b5f58;background:#f0f8f6}.rich-answer h4:first-child{border-top:0;border-radius:8px 8px 0 0}.rich-answer h4::before{content:"";position:absolute;left:18px;top:18px;width:14px;height:14px;border-radius:4px;background:#0f766e;box-shadow:inset 0 0 0 3px #c9f3ec}.rich-answer p{margin:0;padding:12px 18px;line-height:1.7;color:#263936}.rich-answer ol,.rich-answer ul{margin:0;padding:8px 18px 14px 44px;line-height:1.65}.rich-answer li{padding:4px 0}.rich-answer li::marker{font-weight:800;color:#0f766e}.rich-answer code{background:#e7f3f1;color:#0b5f58;border:1px solid #cde8e3;border-radius:5px;padding:2px 5px;font-size:.94em}.rich-answer strong{color:#10211e}.answer-code,pre{overflow:auto;white-space:pre-wrap;padding:14px;background:#101817;color:#d9f8f3;border-radius:7px;font-size:12px;line-height:1.5}.answer-code{margin:12px 18px 16px}.empty-answer{padding:24px;color:var(--muted);font-weight:700}.codex-response{font-size:15px}.version-list{display:grid;gap:10px;max-height:360px;overflow:auto}.version-card{width:100%;text-align:left;border:1px solid var(--line);border-radius:8px;background:#fbfdfc;color:var(--ink);padding:13px 14px;cursor:pointer}.version-card:hover{border-color:#9fd8cf;background:#f0f8f6}.version-card strong{display:block;color:#0b5f58}.version-card span{display:block;color:var(--muted);font-size:12px;margin:4px 0 7px}.version-card p{margin:0;line-height:1.45;color:#263936}@media(max-width:980px){.utility-grid,.control-grid{grid-template-columns:1fr}.app-header{align-items:flex-start;flex-direction:column}.meta-grid{grid-template-columns:1fr}}@media(max-width:640px){.shell{padding:0}.app-header{border-radius:0;margin:0}.main-stack{padding:0 14px 18px}.intro h1{font-size:30px}.chat-card,.response-card,.utility-card{padding:16px}.file-card{align-items:flex-start;flex-direction:column}.model-chip,#requestId{white-space:normal}}