:root{--ai-blue:#155eef;--ai-ink:#0f172a;--ai-muted:#64748b;--ai-line:#dbe4ee;--ai-bg:#f4f7fb;--ai-card:#fff}
.ai-shell{display:grid;grid-template-columns:300px minmax(0,1fr);height:calc(100vh - 86px);min-height:620px;background:var(--ai-card);border:1px solid var(--ai-line);border-radius:18px;overflow:hidden;box-shadow:0 18px 42px rgba(15,23,42,.08)}
.ai-history{background:#f8fafc;border-right:1px solid var(--ai-line);display:flex;flex-direction:column;min-height:0}.ai-history-head{padding:18px;border-bottom:1px solid var(--ai-line)}.ai-history-head button{width:100%;border:0;background:var(--ai-blue);color:#fff;padding:12px;border-radius:11px;font-weight:900;cursor:pointer}.ai-search{margin-top:10px;width:100%;border:1px solid var(--ai-line);border-radius:10px;padding:10px;font:inherit}.conversation-list{padding:10px;overflow:auto;display:grid;gap:7px}.conversation{border:1px solid transparent;background:transparent;text-align:left;border-radius:11px;padding:11px;cursor:pointer}.conversation:hover,.conversation.active{background:#fff;border-color:var(--ai-line)}.conversation strong{display:block;font-size:13px;color:var(--ai-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation small{color:var(--ai-muted)}
.ai-main{display:grid;grid-template-rows:auto 1fr auto;min-width:0;background:linear-gradient(180deg,#fff,#f8fbff)}.ai-head{padding:18px 22px;border-bottom:1px solid var(--ai-line);display:flex;justify-content:space-between;gap:15px;align-items:center}.ai-head h2{margin:0;color:var(--ai-ink)}.ai-head p{margin:4px 0 0;color:var(--ai-muted);font-size:13px}.ai-state{font-size:12px;font-weight:900;padding:7px 10px;border-radius:999px;background:#e0ecff;color:#174ea6}.ai-state.busy{background:#fff3cd;color:#8a5a00}.ai-state.error{background:#fee2e2;color:#991b1b}
.ai-stream{overflow:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.ai-empty{margin:auto;max-width:760px;text-align:center}.ai-logo{width:72px;height:72px;border-radius:22px;margin:0 auto 14px;display:grid;place-items:center;font-size:36px;background:linear-gradient(135deg,#dbeafe,#eef2ff)}.ai-empty h2{font-size:28px;margin:0 0 8px}.ai-empty p{color:var(--ai-muted);margin:0 auto 22px}.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;text-align:left}.quick{border:1px solid var(--ai-line);background:#fff;border-radius:14px;padding:14px;cursor:pointer;transition:.18s}.quick:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(15,23,42,.08)}.quick b{display:block;margin-bottom:5px}.quick span{font-size:12px;color:var(--ai-muted)}
.msg{display:flex;gap:10px;max-width:900px;width:100%;margin:0 auto}.msg.user{justify-content:flex-end}.bubble{border-radius:16px;padding:14px 16px;line-height:1.55;white-space:pre-wrap;word-break:break-word}.msg.user .bubble{background:var(--ai-blue);color:#fff;max-width:75%}.msg.assistant .bubble{background:#fff;border:1px solid var(--ai-line);color:var(--ai-ink);max-width:86%;box-shadow:0 5px 15px rgba(15,23,42,.04)}.avatar{width:34px;height:34px;border-radius:10px;background:#e0ecff;display:grid;place-items:center;flex:0 0 auto}.msg.user .avatar{display:none}.context-chip{display:inline-flex;margin-top:10px;padding:5px 8px;border-radius:999px;background:#eef4ff;color:#315ca8;font-size:10px;font-weight:800}
.ai-composer{border-top:1px solid var(--ai-line);padding:16px 20px;background:#fff}.composer-box{max-width:920px;margin:auto;border:1px solid #cbd5e1;border-radius:16px;padding:10px;background:#fff;box-shadow:0 8px 22px rgba(15,23,42,.07)}.composer-box textarea{width:100%;min-height:52px;max-height:180px;border:0;outline:0;resize:none;padding:8px;font:inherit}.composer-actions{display:flex;justify-content:space-between;align-items:center;gap:10px}.composer-actions small{color:var(--ai-muted)}.send{border:0;background:var(--ai-blue);color:#fff;width:42px;height:42px;border-radius:12px;font-weight:900;cursor:pointer}.send:disabled{opacity:.5;cursor:not-allowed}
@media(max-width:900px){.ai-shell{grid-template-columns:1fr;height:auto;min-height:760px}.ai-history{display:none}.ai-main{min-height:760px}.quick-grid{grid-template-columns:1fr}.msg.user .bubble,.msg.assistant .bubble{max-width:92%}}

.ai-status-group{display:flex;align-items:center;gap:8px}.provider-badge{font-size:11px;font-weight:800;padding:6px 9px;border-radius:999px;background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}.stop{border:0;background:#fee2e2;color:#991b1b;width:42px;height:42px;border-radius:12px;font-weight:900;cursor:pointer}.stop[hidden]{display:none}.streaming .cursor{display:inline-block;margin-left:2px;animation:blink .8s step-end infinite}@keyframes blink{50%{opacity:0}}
.action-proposal{margin-top:10px;background:#FFFBEB;border:1px solid #FDE68A;border-radius:12px;padding:12px 14px}
.action-proposal-label{font-weight:800;font-size:12.5px;color:#92400E;margin-bottom:10px}
.action-proposal-buttons{display:flex;gap:8px}
.action-confirm-btn{border:0;background:#1D6FE0;color:#fff;border-radius:8px;padding:8px 14px;font-weight:800;font-size:12px}
.action-cancel-btn{border:1px solid #D1D5DB;background:#fff;color:#374151;border-radius:8px;padding:8px 14px;font-weight:700;font-size:12px}
.action-proposal-result{margin-top:8px;font-size:12px;font-weight:700}
.action-proposal-result.ok{color:#15803D}
.action-proposal-result.err{color:#B91C1C}