:root{--bg:#0a0a0b;--bg-elevated:#141416;--bg-card:#1a1a1d;--bg-hover:#222226;--border:#27272a;--border-subtle:#1f1f22;--text:#ededed;--text-muted:#a1a1aa;--text-dim:#71717a;--accent:#f97316;--accent-hover:#fb923c;--accent-text:#0a0a0b;--danger:#ef4444;--success:#22c55e;--radius:8px;--radius-sm:6px;--shadow:0 4px 12px #0000004d;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{background:var(--bg);height:100%;color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input,textarea{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;width:100%;padding:10px 12px;font-family:inherit;font-size:14px}input:focus,textarea:focus{border-color:var(--accent)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.auth-shell{place-items:center;min-height:100vh;padding:20px;display:grid}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:420px;box-shadow:var(--shadow);padding:32px}.auth-card h1{margin-bottom:4px;font-size:24px}.auth-card .subtitle{color:var(--text-muted);margin-bottom:24px;font-size:13px}.field{margin-bottom:14px}.field label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:12px;display:block}.btn-primary{background:var(--accent);width:100%;color:var(--accent-text);border-radius:var(--radius-sm);padding:11px 16px;font-size:14px;font-weight:600;transition:background 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var(--border-subtle);margin-bottom:16px;padding-bottom:16px}.sidebar-header .brand{align-items:center;gap:8px;font-size:16px;font-weight:700;display:flex}.sidebar-header .brand-dot{background:var(--accent);border-radius:50%;width:8px;height:8px}.sidebar-header .tenant-name{color:var(--text-muted);margin-top:4px;font-size:12px}.nav-section{margin-bottom:16px}.nav-section-title{text-transform:uppercase;color:var(--text-dim);letter-spacing:.5px;margin-bottom:6px;padding:0 8px;font-size:11px}.nav-link{border-radius:var(--radius-sm);color:var(--text-muted);margin-bottom:2px;padding:8px 10px;font-size:13px;text-decoration:none;display:block}.nav-link:hover{background:var(--bg-hover);color:var(--text);text-decoration:none}.nav-link.active{background:var(--bg-card);color:var(--text)}.sidebar-footer{border-top:1px solid var(--border-subtle);color:var(--text-muted);margin-top:auto;padding-top:16px;font-size:12px}.sidebar-footer .user-email{word-break:break-all;margin-bottom:6px}.main-area{padding:24px 32px;overflow-y:auto}.page-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.page-header h2{font-size:20px;font-weight:600}.doc-grid{gap:10px;display:grid}.doc-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);grid-template-columns:1fr auto;align-items:center;gap:12px;padding:14px 16px;display:grid}.doc-card .filename{margin-bottom:4px;font-size:14px;font-weight:500}.doc-card .meta{color:var(--text-muted);font-size:12px}.status-pill{text-transform:uppercase;letter-spacing:.3px;border-radius:12px;padding:2px 8px;font-size:11px;font-weight:500;display:inline-block}.status-pill.ready{color:#4ade80;background:#22c55e1a}.status-pill.processing{color:#fb923c;background:#f973161a}.status-pill.failed{color:#fca5a5;background:#ef44441a}.empty-state{background:var(--bg-card);border:1px dashed var(--border);border-radius:var(--radius);text-align:center;color:var(--text-muted);padding:40px 20px}.chat-container{flex-direction:column;height:100%;display:flex}.chat-messages{flex:1;padding-right:8px;overflow-y:auto}.chat-empty{height:100%;color:var(--text-muted);text-align:center;place-items:center;display:grid}.chat-empty h3{color:var(--text);margin-bottom:8px;font-size:18px}.message{max-width:720px;margin-bottom:24px}.message.user .role{color:var(--accent)}.message .role{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:6px;font-size:11px;font-weight:600}.message .content{white-space:pre-wrap;word-wrap:break-word;font-size:15px;line-height:1.65}.citations{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);margin-top:14px;padding:12px}.citations-header{text-transform:uppercase;color:var(--text-muted);letter-spacing:.5px;margin-bottom:8px;font-size:11px}.citation{color:var(--text-muted);border-left:2px solid var(--border);margin-bottom:8px;padding-left:12px;font-size:12px}.citation-source{color:var(--text);margin-bottom:2px;font-size:12px;font-weight:500}.cache-badge{color:#4ade80;text-transform:uppercase;letter-spacing:.3px;vertical-align:middle;background:#22c55e1a;border-radius:4px;margin-left:8px;padding:1px 6px;font-size:10px;display:inline-block}.composer{border-top:1px solid var(--border);gap:8px;padding-top:16px;display:flex}.composer textarea{resize:none;min-height:50px;max-height:200px}.upload-input{display:none}.spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:14px;height:14px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.loading-screen{height:100vh;color:var(--text-muted);place-items:center;display:grid}