:root{--bg: #0b1220;--bg-soft: #0f172a;--bg-card: #111827;--line: #1f2937;--line-strong: #334155;--text: #e5e7eb;--muted: #94a3b8;--accent: #2563eb;--accent-soft: #93c5fd;--success: #22c55e}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:linear-gradient(180deg,#020617,#0b1220);color:var(--text)}button,textarea{font:inherit}pre{margin:0;white-space:pre-wrap;word-break:break-word}.app-shell{min-height:100%;display:grid;grid-template-columns:260px minmax(480px,1fr) 420px}.sidebar{background:#0f172af2;border-right:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:16px}.brand__title{font-size:22px;font-weight:700}.brand__subtitle{color:var(--muted);font-size:12px;margin-top:4px}.primary-button{background:var(--accent);color:#fff;border:0;border-radius:12px;padding:12px 16px;cursor:pointer}.primary-button:hover{background:#1d4ed8}.primary-button:disabled{opacity:.65;cursor:not-allowed}.history-list{display:flex;flex-direction:column;gap:8px;overflow:auto}.history-item{width:100%;text-align:left;background:var(--bg-card);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px;cursor:pointer}.history-item.active,.history-item:hover{border-color:var(--accent);background:#020617}.main-column{min-width:0;display:flex;flex-direction:column}.main-header{display:flex;justify-content:space-between;gap:16px;padding:20px 24px;border-bottom:1px solid var(--line);background:#0b1220f2}.main-header h1{margin:0;font-size:24px}.main-header p{margin:6px 0 0;color:var(--muted)}.status-pill{align-self:start;padding:8px 12px;border-radius:999px;background:#2563eb24;border:1px solid rgba(37,99,235,.35);color:var(--accent-soft);font-size:13px}.chat-column{display:flex;flex-direction:column;min-height:0}.conversation-title{padding:12px 24px;color:var(--accent-soft);border-bottom:1px solid rgba(31,41,55,.65)}.chat-window{flex:1;overflow:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.chat-window::-webkit-scrollbar,.inspector::-webkit-scrollbar,.history-list::-webkit-scrollbar{width:8px}.chat-window::-webkit-scrollbar-thumb,.inspector::-webkit-scrollbar-thumb,.history-list::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}.message{max-width:88%;padding:14px 16px;border-radius:18px;animation:fadeIn .22s ease}.message.user{align-self:flex-end;background:var(--accent);color:#fff}.message.assistant{align-self:flex-start;background:var(--bg-card);border:1px solid var(--line)}.message.streaming .message__content:after{content:"▍";animation:blink 1s infinite;margin-left:2px}.message__role{font-size:12px;color:var(--muted);margin-bottom:6px}.message.user .message__role{color:#fffc}.message__content{white-space:pre-wrap;line-height:1.5}.empty-state{max-width:640px;padding:18px;border:1px dashed var(--line-strong);border-radius:16px;color:var(--muted)}.composer{border-top:1px solid var(--line);padding:16px 24px 24px;background:#0f172af2}.composer textarea{width:100%;min-height:120px;resize:vertical;background:#020617;color:var(--text);border:1px solid var(--line-strong);border-radius:14px;padding:14px}.composer__actions{margin-top:12px;display:flex;justify-content:flex-end}.inspector{background:#0f172afa;border-left:1px solid var(--line);padding:16px;overflow:auto}.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.tab{background:#111827;color:var(--text);border:1px solid var(--line);border-radius:999px;padding:8px 12px;cursor:pointer;font-size:12px}.tab.active{border-color:var(--accent);color:var(--accent-soft);background:#2563eb1f}.panel-stack{display:flex;flex-direction:column;gap:12px}.panel-card{background:var(--bg-card);border:1px solid var(--line);border-radius:16px;padding:14px}.panel-card h3{margin:0 0 12px;color:var(--accent-soft);font-size:13px;text-transform:uppercase;letter-spacing:.04em}.panel-card__body{font-size:12px;line-height:1.5}.panel-card__body>.muted{color:var(--muted)}.strategy-highlight{border-left:4px solid var(--success)}.evidence-list{margin:0;padding-left:18px}.evidence-list li{margin-bottom:8px}.timeline-list{position:relative;padding-left:16px}.timeline-list:before{content:"";position:absolute;left:4px;top:2px;bottom:2px;width:2px;background:var(--line)}.timeline-item{position:relative;margin-bottom:10px;padding-left:12px}.timeline-item:before{content:"";position:absolute;left:-2px;top:5px;width:8px;height:8px;border-radius:50%;background:var(--accent)}.canvas-box{width:100%;max-width:100%;border:1px solid var(--line);border-radius:12px;background:#020617}.risk-box{display:flex;flex-direction:column;gap:8px}.risk-bar{width:100%;height:10px;background:#0f172a;border:1px solid var(--line);border-radius:999px;overflow:hidden}.risk-bar span{display:block;height:100%;background:linear-gradient(90deg,#22c55e,#eab308,#ef4444)}.muted{color:var(--muted)}@keyframes blink{0%{opacity:1}50%{opacity:0}to{opacity:1}}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 1400px){.app-shell{grid-template-columns:220px 1fr 360px}}@media (max-width: 1100px){.app-shell{grid-template-columns:1fr}.sidebar,.inspector{display:none}}