@import "https://fonts.googleapis.com/css2?family=Figtree:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";
:root{--bg-primary:#fff;--bg-secondary:#f3f4f6;--bg-tertiary:#fff;--bg-card:#fff;--bg-glass:#ffffffb3;--text-primary:#374151;--text-secondary:#6b7280;--text-muted:#9ca3af;--text-bright:#111827;--accent-cyan:#0891b2;--accent-teal:#0d9488;--accent-blue:#2563eb;--accent-purple:#7c3aed;--accent-green:#059669;--accent-amber:#d97706;--accent-red:#dc2626;--gradient-accent:linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));--gradient-subtle:linear-gradient(135deg, #0891b214, #0d948814);--gradient-card:#fff;--border-default:#9ca3af4d;--border-hover:#0891b24d;--border-active:#0891b280;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001f;--shadow-glow:0 0 20px #0891b226;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--font-sans:"Figtree", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.4s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}a{color:var(--accent-cyan);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-teal);text-decoration:underline}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-container{z-index:1;max-width:1400px;min-height:100vh;padding:0 var(--space-md);flex-direction:column;margin:0 auto;display:flex;position:relative}.header{padding:var(--space-md) 0;border-bottom:1px solid var(--border-default);flex-shrink:0;justify-content:space-between;align-items:center;display:flex}.header-brand{align-items:center;gap:var(--space-sm);display:flex}.header-title{color:var(--text-bright);letter-spacing:-.01em;margin:0;font-size:1.15rem;font-weight:600}.header-actions{align-items:center;gap:var(--space-sm);display:flex}.new-chat-btn{color:var(--text-primary);background:var(--bg-card);border:1px solid var(--border-default);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);align-items:center;gap:6px;padding:6px 14px;font-family:inherit;font-size:.85rem;font-weight:600;display:inline-flex}.new-chat-btn:active{transform:translateY(1px)}.header-right{align-items:center;gap:var(--space-md);display:flex}.header-badge{align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);background:var(--gradient-subtle);border:1px solid var(--border-default);border-radius:var(--radius-full);color:var(--accent-cyan);font-size:.72rem;font-weight:500;display:inline-flex}.header-badge-dot{background:var(--accent-green);border-radius:50%;width:6px;height:6px;animation:2s ease-in-out infinite pulse-dot}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.4}}.main-content{gap:var(--space-lg);padding:var(--space-lg) 0;flex:1;min-height:0;display:flex;overflow:hidden}.chat-section{flex-direction:column;flex:1;min-width:0;display:flex}.sources-section{flex-direction:column;flex-shrink:0;width:380px;min-height:0;display:flex}.glass-card{background:var(--gradient-card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-default);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.chat-container{flex-direction:column;flex:1;min-height:0;display:flex}.messages-area{padding:var(--space-md);gap:var(--space-md);flex-direction:column;flex:1;display:flex;overflow-y:auto}.message{gap:var(--space-sm);animation:.3s ease-out message-appear;display:flex}@keyframes message-appear{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message-user{justify-content:flex-end}.message-assistant{justify-content:flex-start}.message-bubble{max-width:75%;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-size:.9rem;line-height:1.65}.message-user .message-bubble{border:1px solid var(--border-default);color:var(--text-bright);border-bottom-right-radius:var(--space-xs);background:#f3f4f6}.message-assistant .message-bubble{background:var(--bg-tertiary);border:1px solid var(--border-default);color:var(--text-primary);border-bottom-left-radius:var(--space-xs)}.message-assistant .message-bubble code{font-family:var(--font-mono);color:var(--accent-red);background:#0000000d;border-radius:4px;padding:1px 5px;font-size:.82rem}.message-assistant .message-bubble pre{border:1px solid var(--border-default);border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);margin:var(--space-sm) 0;background:#0000000d;overflow-x:auto}.message-assistant .message-bubble pre code{color:var(--text-primary);background:0 0;padding:0}.message-assistant .message-bubble a{color:var(--accent-red);text-decoration:underline}.message-assistant .message-bubble ul,.message-assistant .message-bubble ol{padding-left:var(--space-lg);margin:var(--space-xs) 0}.message-assistant .message-bubble strong{color:var(--text-bright);font-weight:600}.welcome-container{text-align:center;padding:var(--space-2xl);justify-content:center;align-items:center;gap:var(--space-lg);flex-direction:column;flex:1;display:flex}.welcome-icon{background:var(--gradient-accent);border-radius:var(--radius-lg);width:64px;height:64px;box-shadow:var(--shadow-glow);justify-content:center;align-items:center;font-size:28px;display:flex}.welcome-title{color:var(--text-bright);letter-spacing:-.02em;font-size:1.5rem;font-weight:700}.welcome-description{color:var(--text-secondary);max-width:480px;font-size:.9rem;line-height:1.7}.welcome-suggestions{gap:var(--space-sm);flex-wrap:wrap;justify-content:center;max-width:600px;display:flex}.suggestion-chip{padding:var(--space-sm) var(--space-md);background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);font-size:.82rem;font-family:var(--font-sans)}.suggestion-chip:hover{border-color:var(--text-muted);color:var(--text-primary);background:var(--bg-tertiary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.chat-input-bar{align-items:center;gap:var(--space-sm);padding:var(--space-md);border-top:1px solid var(--border-default);display:flex}.chat-input{padding:var(--space-sm) var(--space-md);background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-sans);transition:border-color var(--transition-fast);resize:none;outline:none;flex:1;min-height:42px;font-size:.9rem}.chat-input::placeholder{color:var(--text-muted)}.chat-input:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 2px #06b6d41a}.send-button{white-space:nowrap;color:#fff;cursor:pointer;transition:opacity var(--transition-fast);background-color:#111827;background-image:none;border:1px solid #111827;border-radius:5px;flex-shrink:0;align-self:center;height:min-content;padding:5px 15px;font-size:16px;display:inline-block}.send-button:hover:not(:disabled){background-color:#000;background-image:none}.send-button:visited{color:#fff}.send-button:disabled{opacity:.6;cursor:not-allowed;background-color:#111827;background-image:none}.typing-indicator{padding:var(--space-sm) var(--space-md);align-items:center;gap:5px;display:flex}.typing-dot{background:var(--accent-cyan);border-radius:50%;width:7px;height:7px;animation:1.4s ease-in-out infinite typing-bounce}.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-6px)}}.sources-header{padding:var(--space-md);border-bottom:1px solid var(--border-default);justify-content:space-between;align-items:center;display:flex}.sources-title{color:var(--text-bright);align-items:center;gap:var(--space-sm);font-size:.9rem;font-weight:600;display:flex}.sources-list{padding:var(--space-sm);flex-direction:column;flex:1;display:flex;overflow-y:auto}.source-card{padding:var(--space-md) var(--space-xs);border-bottom:1px solid var(--border-default);cursor:default}.source-card:last-child{border-bottom:none}.source-card-header{justify-content:space-between;align-items:flex-start;gap:var(--space-sm);margin-bottom:var(--space-xs);display:flex}.source-card-title{color:var(--text-bright);font-size:.82rem;font-weight:600;line-height:1.3}.source-card-url{color:var(--accent-red);word-break:break-all;margin-bottom:var(--space-xs);transition:color var(--transition-fast);font-size:.72rem;display:block}.source-card-url:hover{color:#991b1b}.source-card-snippet{color:var(--text-secondary);-webkit-line-clamp:4;line-clamp:4;-webkit-box-orient:vertical;font-size:.78rem;line-height:1.5;display:-webkit-box;overflow:hidden}.sources-empty{padding:var(--space-2xl) var(--space-md);text-align:center;justify-content:center;align-items:center;gap:var(--space-sm);flex-direction:column;display:flex}.sources-empty-text{color:var(--text-muted);font-size:.82rem}.error-banner{align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);color:var(--accent-red);background:#ef44441a;border:1px solid #ef44444d;font-size:.82rem;animation:.3s ease-out message-appear;display:flex}.error-icon{flex-shrink:0;font-size:1rem}@media (max-width:900px){.main-content{flex-direction:column;overflow:visible}.sources-section{width:100%;max-height:300px}.message-bubble{max-width:88%}.welcome-suggestions{flex-direction:column;align-items:center}}@media (max-width:600px){.header{align-items:center;gap:var(--space-sm);flex-direction:column}.header-brand{position:static;transform:none}.header-right{justify-content:space-between;width:100%}.collection-bar{align-items:flex-start;gap:var(--space-sm);flex-direction:column}.app-container{padding:0 var(--space-sm)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.shimmer{background:linear-gradient(90deg, var(--bg-tertiary) 25%, #06b6d414 50%, var(--bg-tertiary) 75%);background-size:200% 100%;animation:1.5s ease-in-out infinite shimmer}.sources-toggle{align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;font-size:.82rem;font-family:var(--font-sans);width:100%;transition:all var(--transition-fast);justify-content:center;display:none}.sources-toggle:hover{border-color:var(--border-hover);color:var(--accent-cyan)}@media (max-width:900px){.sources-toggle{display:flex}}