:root{--brand-blue: #1d92ff;--brand-blue-hover: #1775cc;--brand-blue-active: #0f4980;--brand-blue-soft: #e8f4ff;--brand-blue-line: #bbdeff;--brand-ink: #061d33;--brand-text: #485159;--brand-muted: #728190;--brand-border: #d2d5d7;--brand-surface: #f4f4f4;--brand-coral: #ff3b3b;--brand-coral-dark: #cc2f2f;--brand-coral-soft: #ffebeb;--white: #ffffff;--font-sans: "Inter Tight", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;--font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--panel-width: clamp(264px, 18vw, 320px);--radius: 10px;--topbar-height: 68px;--panel-toggle-width: 36px;--panel-toggle-gap: 14px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{min-width:320px;overflow:hidden;background:var(--white);color:var(--brand-ink);font-family:var(--font-sans);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,select,textarea{font:inherit}:focus-visible{outline:2px solid var(--brand-blue);outline-offset:2px}.app{height:100vh;height:100dvh;display:flex;flex-direction:column;background:var(--white)}.topbar{position:relative;z-index:2;flex:0 0 var(--topbar-height);height:var(--topbar-height);display:flex;align-items:center;padding:0 32px;background:var(--white);border-bottom:1px solid var(--brand-border)}.topbar-left{flex:0 0 auto;width:calc(var(--panel-width) - 32px);height:100%;padding-right:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-right:1px solid transparent;transition:border-color .22s ease}.app:not(.app--panel-collapsed) .topbar-left{border-right-color:var(--brand-border)}.topbar:after{position:absolute;bottom:-1px;left:32px;width:88px;height:3px;background:var(--brand-blue);content:""}.logo-link{display:block;line-height:0;border-radius:var(--radius)}.logo-link:focus-visible{outline:2px solid 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var(--brand-blue-line);border-radius:999px;font:inherit;font-size:13px;cursor:pointer}.load-more:hover:not(:disabled){background:var(--brand-blue-soft)}.load-more:disabled{color:var(--brand-muted);border-color:var(--brand-border);cursor:default}.column{width:100%;min-height:0;display:flex;flex-direction:column;padding:0 28px 0 24px}.messages{flex:1 1 auto;min-height:0;overflow-x:hidden;overflow-y:auto;padding:34px 4px 28px;display:flex;flex-direction:column;gap:28px;scrollbar-color:var(--brand-blue-line) transparent;scrollbar-width:thin}.messages::-webkit-scrollbar{width:8px}.messages::-webkit-scrollbar-thumb{background:var(--brand-blue-line);border:2px solid var(--white);border-radius:var(--radius)}.empty{position:relative;align-self:center;width:min(100%,480px);min-height:96px;margin-top:clamp(48px,13vh,132px);margin-bottom:auto;padding:20px 24px 20px 92px;display:flex;align-items:center;color:var(--brand-text);background:var(--white);border:1px solid var(--brand-blue-line);border-radius:var(--radius);box-shadow:0 12px 30px #061d330f}.empty-mark{position:absolute;top:50%;left:24px;width:48px;height:48px;transform:translateY(-50%);object-fit:cover;border-radius:50%}.empty span{font-size:16px;font-weight:500;letter-spacing:-.01em}.msg{width:100%;display:flex}.msg.user{justify-content:flex-end;padding-left:20%}.msg.assistant{justify-content:flex-start;padding-right:10%}.bubble{overflow-wrap:anywhere}.plain{white-space:pre-wrap}.msg.user .bubble{max-width:620px;padding:11px 15px;color:var(--brand-ink);background:var(--brand-blue-soft);border:1px solid var(--brand-blue-line);border-radius:var(--radius)}.msg.assistant .bubble{width:100%;max-width:820px;padding:2px 0 2px 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var(--brand-border);border-radius:var(--radius);font-size:14px}.documents-search:focus-visible{outline:2px solid var(--brand-blue);outline-offset:1px}.documents-duplicates{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-text);cursor:pointer;white-space:nowrap}.documents-hint{color:var(--brand-muted);font-size:12px}.documents-alert{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.documents-table{width:100%;border-collapse:collapse;font-size:14px}.documents-table th,.documents-table td{padding:10px 12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--brand-border)}.documents-table th{color:var(--brand-muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}.documents-name{overflow-wrap:anywhere}.documents-badge{display:inline-block;margin-left:8px;padding:1px 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720px){.documents-table-scroll{overflow-x:auto}.documents-table{min-width:640px}}.documents-table-scroll{overflow-x:auto}.documents-pager{flex-wrap:wrap}.documents-name{max-width:360px}.sources{max-width:780px;margin-top:20px;padding-top:14px;border-top:1px solid var(--brand-border)}.sources-title{margin-bottom:8px;color:var(--brand-text);font-family:var(--font-mono);font-size:10.5px;font-weight:500;letter-spacing:.09em;text-transform:uppercase}.source{position:relative;margin:4px 0;font-size:14px}.source-details>summary{min-height:42px;padding:9px 10px;display:flex;align-items:center;color:var(--brand-ink);background:var(--white);border-radius:var(--radius);cursor:pointer;font-weight:500;list-style:none;overflow-wrap:anywhere}.source--downloadable 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var(--brand-border);border-radius:var(--radius);font-size:14px}.topic-select:disabled{color:var(--brand-muted);background:var(--brand-surface)}.topic-hint{color:var(--brand-muted);font-size:11px;line-height:1.4}.boot{height:100vh;display:flex;align-items:center;justify-content:center;color:var(--brand-muted);font-size:14px}.login-main{flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(180deg,#e8f4ff94 0,#fff0 200px),var(--white)}.login-card{width:min(100%,380px);padding:28px;display:flex;flex-direction:column;gap:16px;background:var(--white);border:1px solid var(--brand-blue-line);border-radius:var(--radius);box-shadow:0 12px 30px #061d330f}.login-title{margin:0;color:var(--brand-ink);font-size:19px;font-weight:650;letter-spacing:-.01em}.login-field{display:flex;flex-direction:column;gap:6px;color:var(--brand-text);font-size:13px}.login-field input{padding:10px 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