@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap";:root{--primary: #4f8ef7;--primary-light: #88b3f9;--primary-dark: #1e62d0;--primary-glow: rgba(79, 142, 247, .25);--accent: #7c3aed;--accent-light: #a78bfa;--accent-dark: #5b21b6;--accent-glow: rgba(124, 58, 237, .25);--danger: #ef4444;--danger-light: #f87171;--warning: #f59e0b;--success: #10b981;--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-tertiary: #161622;--bg-elevated: #1a1a26;--bg-hover: #1e1e2e;--bg-pattern-dot: rgba(255, 255, 255, 1);--glass-bg: rgba(18, 18, 26, .8);--glass-border: #1e1e2e;--glass-shadow: 0 8px 32px rgba(0, 0, 0, .6);--text-primary: #e2e8f0;--text-secondary: #94a3b8;--text-muted: #64748b;--text-inverse: #0a0a0f;--border-subtle: #1e1e2e;--border-default: #1e1e2e;--border-strong: #3f3f56;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;--sidebar-width: 280px;--header-height: 56px}body.light,[data-theme=light]{--bg-pattern-dot: rgba(0, 0, 0, .77)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow:hidden;height:100vh}#root{height:100vh;display:flex;flex-direction:column}.icon-muted{color:var(--text-muted)}.icon-accent{color:var(--accent)}.icon-primary{color:var(--primary-light)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.icon-spin{animation:spin 1s linear infinite;color:var(--primary-light)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.app-layout{display:flex;height:100vh;width:100%;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;height:100vh;transition:transform var(--transition-base)}.sidebar-header{padding:24px 24px 20px;border-bottom:1px solid var(--border-subtle)}.sidebar-header h1{font-size:1.15rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em;display:flex;align-items:center;gap:8px}.sidebar-logo-icon{flex-shrink:0}.sidebar-header h1 svg{-webkit-text-fill-color:initial}.sidebar-header p{font-size:.72rem;color:var(--text-secondary);margin-top:4px;letter-spacing:.01em}.upload-section{padding:16px 20px;border-bottom:1px solid var(--border-subtle)}.dropzone{border:2px dashed var(--border-default);border-radius:var(--radius-md);padding:24px 16px;text-align:center;cursor:pointer;transition:all var(--transition-base);background:#6c5ce708;position:relative;overflow:hidden}.dropzone:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at center,var(--primary-glow),transparent 70%);opacity:0;transition:opacity var(--transition-base)}.dropzone:hover,.dropzone--active{border-color:var(--primary);background:#6c5ce70f}.dropzone:hover:before,.dropzone--active:before{opacity:1}.dropzone--uploading{pointer-events:none;border-color:var(--primary-light)}.dropzone-icon{margin-bottom:8px;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}.dropzone-text{font-size:.82rem;color:var(--text-secondary);position:relative;z-index:1}.dropzone-text strong{color:var(--primary-light);font-weight:600}.dropzone-hint{font-size:.68rem;color:var(--text-muted);margin-top:4px;position:relative;z-index:1}.upload-progress{margin-top:12px}.progress-bar-track{height:4px;background:var(--bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:var(--radius-full);transition:width var(--transition-fast)}.progress-label{font-size:.7rem;color:var(--text-muted);margin-top:4px;text-align:right}.doc-library{flex:1;overflow-y:auto;padding:12px 16px}.doc-library-title{font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:8px 8px 12px}.doc-item{display:flex;flex-direction:column;gap:4px;padding:10px 12px;background:linear-gradient(135deg,var(--card-bg-from),var(--card-bg-to));border:1px solid var(--border-subtle);border-left:1px solid var(--card-accent);border-radius:8px;transition:all var(--transition-fast);cursor:default;margin-bottom:8px;animation:slideIn var(--transition-base) ease-out}@keyframes slideIn{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}.doc-item:hover{background:var(--card-bg-hover);border:2px solid var(--card-accent);padding:9px 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20px;color:var(--text-muted);font-size:.82rem}.doc-empty-icon{margin-bottom:12px;display:flex;justify-content:center;opacity:.4;color:var(--text-muted)}.main-content{flex:1;display:flex;flex-direction:column;height:100vh;min-width:0;min-height:0;overflow:hidden;background:var(--bg-primary);position:relative}.main-content:before{content:"";position:absolute;top:-200px;right:-200px;width:500px;height:500px;background:radial-gradient(circle,rgba(108,92,231,.06),transparent 60%);pointer-events:none}.main-content:after{content:"";position:absolute;bottom:-200px;left:-200px;width:500px;height:500px;background:radial-gradient(circle,rgba(0,206,201,.04),transparent 60%);pointer-events:none}.chat-header{height:var(--header-height);padding:0 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-subtle);background:#0a0a0fcc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:10;position:relative}.chat-header-title{font-size:.9rem;font-weight:600;color:var(--text-primary)}.chat-header-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-full);font-size:.7rem;color:var(--text-secondary)}.chat-header-dot{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.chat-messages{flex:1;min-height:0;overflow-y:auto;padding:24px 28px;display:flex;flex-direction:column;gap:20px;position:relative;z-index:1}.chat-messages:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:-1;opacity:.045;background-image:radial-gradient(circle,var(--bg-pattern-dot) 1px,transparent 1px);background-size:24px 24px;-webkit-mask-image:linear-gradient(to bottom,black calc(100% - 80px),transparent 100%);mask-image:linear-gradient(to bottom,black calc(100% - 80px),transparent 100%)}.message{display:flex;gap:12px;max-width:78%;animation:messageIn var(--transition-base) ease-out}@keyframes messageIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message--user{align-self:flex-end;flex-direction:row-reverse}.message--assistant{align-self:flex-start}.message-avatar{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;transition:box-shadow .6s ease-out}.message--user .message-avatar{background:linear-gradient(135deg,var(--primary),var(--primary-dark))}.message--assistant .message-avatar{background:linear-gradient(135deg,var(--accent-dark),var(--accent))}.message-avatar--active{box-shadow:0 0 0 3px #7c3aed66,0 0 0 6px #7c3aed40,0 0 16px #7c3aed59;animation:avatarGlow 2.4s ease-in-out infinite}@keyframes avatarGlow{0%,to{box-shadow:0 0 0 3px #7c3aed3d,0 0 0 6px #7c3aed26,0 0 16px #7c3aed36}50%{box-shadow:0 0 0 3px #7c3aed66,0 0 0 6px #7c3aed40,0 0 16px #7c3aed59}}.message-bubble{padding:12px 16px;border-radius:var(--radius-md);font-size:.86rem;line-height:1.65}.message--user .message-bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.message--assistant .message-bubble{background:var(--bg-tertiary);border:1px solid var(--border-subtle);color:var(--text-primary);border-bottom-left-radius:4px}.sources-container{margin-top:10px}.sources-toggle{display:inline-flex;align-items:center;gap:6px;background:none;border:none;color:var(--primary-light);font-size:.75rem;font-weight:500;cursor:pointer;padding:4px 0;transition:color var(--transition-fast);font-family:var(--font-sans)}.sources-toggle:hover{color:var(--accent)}.sources-toggle-icon{transition:transform var(--transition-fast);display:inline-flex}.sources-toggle-icon--open{transform:rotate(90deg)!important}.sources-list{display:flex;flex-direction:column;gap:8px;margin-top:8px;animation:sourcesFade var(--transition-base) ease-out}@keyframes sourcesFade{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.source-card{padding:10px 14px;background:#6c5ce70f;border:1px solid var(--glass-border);border-radius:var(--radius-sm);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:border-color var(--transition-fast)}.source-card:hover{border-color:var(--primary)}.source-card-header{display:flex;align-items:center;gap:6px;margin-bottom:6px}.source-card-filename{font-size:.75rem;font-weight:600;color:var(--primary-light)}.source-card-meta{font-size:.65rem;color:var(--text-muted);font-family:var(--font-mono)}.source-card-preview{font-size:.76rem;color:var(--text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.chat-input-area{padding:16px 28px 20px;border-top:1px solid var(--border-subtle);background:#0a0a0fcc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:relative;z-index:10}.chat-input-wrapper{display:flex;align-items:flex-end;gap:10px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-lg);padding:4px 4px 4px 18px;transition:border-color var(--transition-fast),box-shadow .5s 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var(--transition-fast);flex-shrink:0}.chat-send-btn:hover:not(:disabled){transform:scale(1.05);box-shadow:0 4px 16px var(--primary-glow)}.chat-send-btn:disabled{opacity:.35;cursor:not-allowed}.typing-indicator{display:flex;gap:5px;padding:4px 0}.typing-dot{width:7px;height:7px;border-radius:50%;background:var(--text-muted);animation:typing 1.4s infinite ease-in-out}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-8px);opacity:1}}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-hover) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton-line{height:14px;margin-bottom:8px}.skeleton-line:last-child{width:60%}.welcome-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px;position:relative;z-index:1}.welcome-icon-wrapper{width:80px;height:80px;border-radius:50%;background:#6c5ce714;border:1px solid rgba(108,92,231,.15);display:flex;align-items:center;justify-content:center;margin-bottom:24px;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.welcome-title{font-size:1.6rem;font-weight:700;background:linear-gradient(135deg,var(--text-primary),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px;letter-spacing:-.02em}.welcome-subtitle{font-size:.88rem;color:var(--text-secondary);max-width:440px;line-height:1.6}.welcome-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;justify-content:center}.welcome-chip{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-full);font-size:.78rem;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);font-family:var(--font-sans);font-weight:500}.chip-icon{color:var(--primary-light);flex-shrink:0}.welcome-chip:hover{background:var(--bg-hover);border-color:var(--primary);color:var(--text-primary);transform:translateY(-2px);box-shadow:0 4px 12px #6c5ce726}.welcome-chip:hover .chip-icon{color:var(--accent)}@media (max-width: 768px){.sidebar{position:fixed;left:0;top:0;z-index:100;transform:translate(-100%)}.sidebar--open{transform:translate(0)}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:99}.message{max-width:95%}}.agent-steps{display:flex;flex-direction:column;gap:12px;padding:8px 4px}.agent-step{display:flex;align-items:center;gap:10px;font-size:.82rem;color:var(--text-muted);transition:color var(--transition-fast) ease}.agent-step--active{color:var(--text-secondary)}.agent-step--current{color:var(--accent-light);font-weight:500}.agent-step__dot{width:8px;height:8px;border-radius:50%;background:var(--text-muted);transition:all var(--transition-base) ease;position:relative;flex-shrink:0}.agent-step--active .agent-step__dot{background:var(--text-secondary)}.agent-step--current .agent-step__dot{background:var(--accent);box-shadow:0 0 8px var(--accent)}.agent-step--current .agent-step__dot:after{content:"";position:absolute;top:-4px;left:-4px;right:-4px;bottom:-4px;border-radius:50%;border:1px solid var(--accent);animation:pulse-dot 1.5s infinite ease-out}@keyframes pulse-dot{0%{transform:scale(.8);opacity:1}to{transform:scale(2);opacity:0}}.inline-code-span{font-family:var(--font-mono);font-size:.9em;background:#ffffff14;padding:1px 5px;border-radius:4px}.tech-token{font-family:var(--font-mono);font-size:.9em;background:#ffffff0f;padding:1px 4px;border-radius:4px;color:var(--primary-light)}.system-output-line{font-family:var(--font-mono);font-size:13px;line-height:1.6;color:var(--text-secondary);border-left:2px solid var(--accent);padding-left:10px;margin:6px 0}.system-output-block{background:#00000059;border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:12px 16px;margin:12px 0;overflow-x:auto}.system-output-block code{font-family:var(--font-mono);font-size:13px;line-height:1.6;color:var(--text-primary);white-space:pre-wrap}.message-line{margin-bottom:4px}.message-paragraph{margin-bottom:8px}