:root{--primary:#09090b;--primary-glow:rgba(9,9,11,0.05);--primary-hover:#27272a;--secondary:#52525b;--accent:#71717a;--bg-base:#fafafa;--bg-chat:#ffffff;--surface:#ffffff;--surface-elevated:#ffffff;--surface-hover:#f4f4f5;--text-primary:#09090b;--text-secondary:#52525b;--text-muted:#a1a1aa;--border:#e4e4e7;--border-light:#f4f4f5;--user-bubble:#09090b;--user-text:#ffffff;--bot-bubble:#ffffff;--bot-text:#09090b;--shadow-sm:0 1px 2px rgba(0,0,0,0.02),0 1px 4px rgba(0,0,0,0.02);--shadow-md:0 4px 12px rgba(0,0,0,0.04),0 1px 3px rgba(0,0,0,0.02);--shadow-lg:0 8px 32px rgba(0,0,0,0.06);--shadow-input:0 2px 14px rgba(0,0,0,0.03);--radius-sm:6px;--radius-md:12px;--radius-lg:18px;--radius-xl:24px;--radius-full:9999px;--font-heading:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";--font-body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol"}@media (prefers-color-scheme:dark){:root{--primary:#ffffff;--primary-glow:rgba(255,255,255,0.08);--primary-hover:#f4f4f5;--secondary:#a1a1aa;--accent:#d4d4d8;--bg-base:#000000;--bg-chat:#09090b;--surface:#09090b;--surface-elevated:#18181b;--surface-hover:#18181b;--text-primary:#ffffff;--text-secondary:#a1a1aa;--text-muted:#52525b;--border:#27272a;--border-light:#18181b;--user-bubble:#ffffff;--user-text:#000000;--bot-bubble:#09090b;--bot-text:#ffffff;--shadow-sm:0 1px 2px rgba(0,0,0,0.4);--shadow-md:0 4px 12px rgba(0,0,0,0.6);--shadow-lg:0 8px 32px rgba(0,0,0,0.8)}}*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background:var(--bg-base);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading)}.app-container{display:flex;flex-direction:column;height:100vh;height:100dvh;max-width:720px;margin:0 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var(--radius-lg) 6px var(--radius-lg);box-shadow:0 2px 12px rgba(0,0,0,.2)}.message-row.bot .message-bubble{background:var(--bot-bubble);color:var(--bot-text);border-radius:var(--radius-lg) var(--radius-lg) var(--radius-lg) 6px;border:1px solid var(--border);box-shadow:var(--shadow-sm)}.message-time{font-size:.68rem;color:var(--text-muted);margin-top:4px;padding:0 4px}.message-row.user .message-time{text-align:right}.markdown-content{font-size:.92rem;word-wrap:break-word;overflow-wrap:break-word}.markdown-content p{margin-bottom:8px}.markdown-content p:last-child{margin-bottom:0}.markdown-content strong{font-weight:700}.message-row.bot .markdown-content strong{color:var(--primary)}.message-row.user .markdown-content strong{color:var(--user-text)}.markdown-content em{font-style:italic;opacity:.9}.markdown-content blockquote{border-left:3px solid var(--primary);padding:8px 14px;margin:10px 0;background:var(--primary-glow);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic;color:var(--text-secondary)}.message-row.user .markdown-content blockquote{border-left-color:var(--user-text);background:rgba(255,255,255,.12);color:var(--user-text);opacity:.85}.markdown-content ol,.markdown-content ul{padding-left:18px;margin-bottom:8px}.markdown-content li{margin-bottom:3px}.markdown-content li::marker{color:var(--primary)}.message-row.user .markdown-content li::marker{color:var(--user-text);opacity:.6}.markdown-content h1,.markdown-content h2,.markdown-content h3{margin-top:12px;margin-bottom:6px;font-weight:700;font-family:var(--font-heading);line-height:1.3}.markdown-content h1{font-size:1.1rem}.markdown-content h2{font-size:1.02rem}.markdown-content h3{font-size:.95rem}.markdown-content a{color:var(--primary);text-decoration:none;border-bottom:1px dashed var(--primary);transition:border-color .2s}.markdown-content a:hover{border-bottom-style:solid}.message-row.user .markdown-content 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16px;position:relative;overflow:hidden}.auth-page:before{content:"";position:absolute;width:380px;height:380px;background:radial-gradient(circle,rgba(124,58,237,.15) 0,rgba(0,0,0,0) 70%);top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none}.auth-card{background:var(--surface);border:1px solid var(--border);padding:36px 28px;border-radius:var(--radius-lg);max-width:420px;width:100%;box-shadow:0 20px 40px rgba(0,0,0,.4);position:relative;z-index:10;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.auth-header{text-align:center;margin-bottom:24px}.auth-logo{width:56px;height:56px;background:var(--primary);color:var(--bg-base);font-weight:800;font-size:1.1rem;letter-spacing:.5px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 8px 24px rgba(0,0,0,.2)}.auth-header h2{font-size:1.4rem;font-weight:800;margin-bottom:4px;color:var(--text-primary);letter-spacing:-.3px}.auth-header p{color:var(--text-muted);font-size:.88rem;margin:0;line-height:1.5}.auth-form{display:flex;flex-direction:column;gap:18px}.auth-form .input-group label{font-size:.8rem;font-weight:600;color:var(--text-secondary);display:flex;align-items:center;gap:6px;margin-bottom:8px}.auth-form .input-group input{width:100%;padding:12px 14px;background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.92rem;outline:none;transition:all .2s}.auth-form .input-group input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(124,58,237,.15)}.auth-submit-btn{width:100%;padding:12px 18px;font-size:.92rem;font-weight:700;background:var(--primary);color:var(--bg-base);border:none;border-radius:var(--radius-sm);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease;margin-top:6px;box-shadow:0 4px 14px 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h3{margin:0 0 2px;font-size:.92rem}.member-title{font-size:.78rem;color:var(--text-muted);display:block;margin-bottom:4px}.member-email{display:flex;align-items:center;gap:4px;font-size:.75rem;color:var(--text-secondary)}.role-tag{position:absolute;top:12px;right:12px;font-size:.62rem;font-weight:800;padding:2px 6px;border-radius:4px}.enrichment-tabs{display:flex;gap:10px;margin-bottom:16px}.tab-btn{background:var(--surface);border:1px solid var(--border);padding:8px 16px;border-radius:var(--radius-md);font-size:.85rem;font-weight:600;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:6px}.tab-btn.active{background:var(--primary);color:var(--bg-base);border-color:var(--primary)}.docs-list{padding:16px;display:flex;flex-direction:column;gap:12px}.doc-item{background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px}.doc-meta{display:flex;align-items:center;gap:10px;margin-bottom:6px}.doc-meta strong{font-size:.9rem}.doc-sub{font-size:.75rem;color:var(--text-muted);display:flex;align-items:center;gap:4px}.doc-excerpt{font-size:.8rem;color:var(--text-secondary);line-height:1.4}.empty-docs{font-size:.85rem;color:var(--text-muted);text-align:center;margin:20px 0}