:root{--bg:#f7f8fa;--panel:#ffffff;--text:#171b20;--muted:#65707d;--line:#dce2ea;--accent:#0f766e;--accent-strong:#115e59;--warn:#a34113;--soft-blue:#e9f1ff;--soft-green:#e7f6f2}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}button,input,select{font:inherit}.shell{width:min(1440px,100%);margin:0 auto;padding:24px}.topbar{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}.eyebrow{color:var(--accent);font-size:13px;font-weight:700;margin:0 0 6px;text-transform:uppercase}h1{font-size:28px;line-height:1.15;margin:0}.status{border:1px solid var(--line);border-radius:999px;color:var(--muted);min-width:112px;padding:8px 12px;text-align:center}.status-block{display:grid;grid-gap:8px;gap:8px;min-width:min(360px,100%)}.status.completed,.status.ready{background:var(--soft-green);color:var(--accent-strong)}.status.chatting,.status.submitting{background:var(--soft-blue);color:#24538a}.status.offline{background:#fff8e8;color:#7b4a00}.progress-summary{display:grid;grid-gap:6px;gap:6px}.progress-label{color:var(--muted);display:flex;font-size:12px;justify-content:space-between;gap:12px}.progress-track{background:#e7ebf0;border-radius:999px;height:8px;overflow:hidden}.progress-fill{background:var(--accent);border-radius:inherit;height:100%;transition:width .18s ease}.error,.status.failed{color:var(--warn)}.ingest{display:grid;grid-template-columns:minmax(180px,1fr) minmax(180px,1fr) 150px;grid-gap:12px;gap:12px;margin-bottom:10px}.url-control{display:grid;grid-gap:8px;gap:8px;grid-template-columns:132px minmax(0,1fr)}label{color:var(--muted);display:grid;font-size:13px;grid-gap:6px;gap:6px}input,select{border:1px solid var(--line);border-radius:8px;min-height:42px;padding:0 12px;width:100%}input:disabled,select:disabled{background:#f1f3f6;color:var(--muted)}input:focus,select:focus{border-color:var(--accent);outline:2px solid rgba(15,118,110,.14)}button{align-self:end;background:var(--accent);border:0;border-radius:8px;color:white;cursor:pointer;min-height:42px;padding:0 16px}button:disabled{background:#a8b0b9;cursor:not-allowed}.session{color:var(--muted);font-size:13px;margin:0;overflow-wrap:anywhere}.session-row{align-items:center;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin:8px 0 16px}.secondary-action{background:#eef1f5;border:1px solid var(--line);color:#384250;min-height:34px;padding:0 12px}.limit-strip{color:var(--muted);display:flex;flex-wrap:wrap;font-size:12px;gap:6px;margin:4px 0 12px}.limit-strip span{background:#eef1f5;border:1px solid var(--line);border-radius:999px;padding:5px 8px}.error{background:#fff2ed;border:1px solid #ffd8c8;border-radius:8px;margin:10px 0 16px;padding:10px 12px}.warning-stack{display:grid;grid-gap:8px;gap:8px;margin:8px 0 12px}.warning{background:#fff8e8;border:1px solid #f2d38a;border-radius:8px;color:#7b4a00;font-size:13px;margin:0;padding:9px 10px}.field-error{color:var(--warn);font-size:12px;line-height:1.35}.network-alert{background:#fff8e8;border:1px solid #f2d38a;border-radius:8px;color:#7b4a00;margin:10px 0 16px;padding:10px 12px}.workspace{display:grid;grid-template-columns:minmax(320px,.95fr) minmax(360px,1.05fr);grid-gap:18px;gap:18px}.videos{display:grid;grid-gap:14px;gap:14px}.chat-panel,.video-panel{background:var(--panel);border:1px solid var(--line);border-radius:8px}.video-panel{min-height:238px;padding:18px}.video-panel.empty{color:var(--muted)}.video-topline{align-items:center;display:flex;justify-content:space-between;gap:12px}.platform,.video-label{color:var(--muted);font-size:13px;font-weight:700;text-transform:uppercase}.platform{background:var(--soft-blue);border-radius:999px;padding:5px 8px}h2{font-size:22px;line-height:1.2;margin:12px 0 16px}.pipeline-state{color:var(--muted);display:flex;flex-wrap:wrap;font-size:12px;gap:6px;margin-top:10px}.pipeline-state span{background:#eef1f5;border-radius:999px;padding:4px 7px}.pipeline-state .mini-status.completed{background:var(--soft-green);color:var(--accent-strong)}.pipeline-state .mini-status.failed,.video-error{color:var(--warn)}.video-error{background:#fff2ed;border:1px solid #ffd8c8;border-radius:8px;font-size:12px;line-height:1.35;margin:10px 0 0;padding:8px;overflow-wrap:anywhere}.metrics{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(3,minmax(0,1fr));margin:0}.metrics div{border-top:1px solid var(--line);padding-top:10px}dt{color:var(--muted);font-size:12px}dd{font-size:17px;font-weight:700;margin:4px 0 0;overflow-wrap:anywhere}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}.sources span,.tags span{background:#eef1f5;border-radius:999px;color:#384250;font-size:12px;padding:5px 8px}.empty-line{background:#edf0f3;border-radius:6px;height:18px;margin-top:18px;width:80%}.empty-line.short{width:48%}.chat-panel{display:grid;grid-template-rows:minmax(420px,calc(100vh - 236px)) auto;min-height:520px}.messages{display:flex;flex-direction:column;gap:12px;overflow-y:auto;padding:16px}.empty-chat{align-items:center;color:var(--muted);display:flex;height:100%;justify-content:center;line-height:1.5;text-align:center}.message{border:1px solid var(--line);border-radius:8px;max-width:92%;padding:12px}.message.user{align-self:flex-end;background:var(--soft-blue)}.message.assistant{align-self:flex-start;background:#fff}.role{color:var(--muted);font-size:12px;font-weight:700;margin-bottom:6px;text-transform:uppercase}.message p{line-height:1.5;margin:0;white-space:pre-wrap}.sources{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.chat-input{border-top:1px solid var(--line);display:grid;grid-gap:10px;gap:10px;grid-template-columns:1fr 96px;padding:12px}@media (max-width:900px){.shell{padding:16px}.ingest,.topbar,.workspace{grid-template-columns:1fr}.topbar{align-items:stretch;display:grid}.chat-panel{grid-template-rows:minmax(360px,56vh) auto}.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.url-control{grid-template-columns:1fr}}