:root{--bg-main:#0b0f19;--bg-panel:#141b2d;--bg-card:#1a233a99;--border-subtle:#ffffff14;--border-focus:#3b82f6;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--accent-cyan:#06b6d4;--accent-blue:#3b82f6;--accent-violet:#8b5cf6;--font-sans:"Inter", system-ui, -apple-system, sans-serif;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--transition-fast:.15s ease;--transition-normal:.3s ease}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:var(--accent-cyan);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-blue)}:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.app-container{max-width:1440px;min-height:100vh;margin:0 auto;display:flex}.sidebar{background-color:var(--bg-panel);border-right:1px solid var(--border-subtle);flex-direction:column;width:320px;height:100vh;padding:2rem 1.5rem;display:flex;position:sticky;top:0;overflow-y:auto}.sidebar-header{margin-bottom:2rem}.sidebar-title{background:linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-violet));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.25rem;font-weight:700;line-height:1.2}.sidebar-nav{flex-direction:column;gap:.5rem;display:flex}.main-content{flex:1;min-width:0;padding:3rem 4rem}.main-header{justify-content:space-between;align-items:center;margin-bottom:3rem;display:flex}@media (width<=900px){.app-container{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border-subtle);width:100%;height:auto;padding:1.5rem;position:static}.main-content{padding:2rem 1.5rem}}.nav-link{color:var(--text-secondary);border-radius:var(--radius-md);transition:all var(--transition-normal);border:1px solid #0000;align-items:center;padding:.75rem 1rem;font-weight:500;display:flex}.nav-link:hover{color:var(--text-primary);background-color:#ffffff08}.nav-link.active{color:var(--accent-cyan);background-color:#06b6d41a;border-color:#06b6d433}.source-card{background-color:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);transition:transform var(--transition-normal), box-shadow var(--transition-normal), opacity .3s ease;opacity:0;margin-bottom:1rem;padding:1.5rem;transform:translateY(12px)}.source-card.visible{opacity:1;transform:translateY(0)}.source-card:hover{border-color:#ffffff26;transform:translateY(-2px);box-shadow:0 8px 24px #0003}.source-title{color:var(--text-primary);align-items:flex-start;gap:.5rem;margin-bottom:.5rem;font-size:1.125rem;font-weight:600;display:flex}.source-icon{color:var(--accent-blue);flex-shrink:0;margin-top:.2rem}.badge{color:var(--accent-violet);background-color:#8b5cf626;border-radius:9999px;align-items:center;margin-bottom:.5rem;margin-right:.5rem;padding:.25rem .75rem;font-size:.75rem;font-weight:600;display:inline-flex}.search-container{width:100%;max-width:400px;position:relative}.search-input{border:1px solid var(--border-subtle);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:border-color var(--transition-fast);background-color:#0003;padding:.75rem 1rem .75rem 2.5rem;font-family:inherit}.search-input:focus{border-color:var(--accent-cyan);outline:none}.hidden{display:none!important}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.text-muted{color:var(--text-muted)}.text-sm{font-size:.875rem}.thesis-quote{font-family:Space Grotesk,system-ui,sans-serif;line-height:1.6}.premium-table{border-collapse:collapse;width:100%;margin-top:1rem}.premium-table td{border-bottom:1px solid var(--border-subtle);transition:background-color var(--transition-fast)}.premium-table tr:hover td{background-color:#ffffff05}.premium-table tr:last-child td{border-bottom:none}#chat-bubble{background-color:var(--accent-cyan);color:#fff;cursor:pointer;z-index:1000;border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;font-size:1.8rem;transition:transform .3s,background-color .3s;display:flex;position:fixed;bottom:2rem;right:2rem;box-shadow:0 4px 15px #06b6d466}#chat-bubble:hover{background-color:var(--accent-blue);transform:scale(1.1)}#chat-bubble.hidden{display:none}#chat-container{background-color:var(--bg-panel);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);z-index:1000;border:1px solid #ffffff1a;flex-direction:column;width:350px;height:500px;transition:opacity .3s,transform .3s;display:flex;position:fixed;bottom:2rem;right:2rem;overflow:hidden;box-shadow:0 10px 30px #00000080}#chat-container.hidden{opacity:0;pointer-events:none;transform:translateY(20px)}.chat-header{background-color:#ffffff0d;border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;padding:1rem;display:flex}.chat-header h3{color:var(--text-primary);margin:0;font-size:1.1rem}#close-chat{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:1.5rem}#close-chat:hover{color:var(--text-primary)}#chat-messages{flex-direction:column;flex:1;gap:1rem;padding:1rem;display:flex;overflow-y:auto}.message{border-radius:var(--radius-md);max-width:85%;padding:.8rem;font-size:.95rem;line-height:1.4}.bot-message{color:var(--text-secondary);border-left:3px solid var(--accent-cyan);background-color:#ffffff0d;align-self:flex-start}.user-message{color:var(--text-primary);border-right:3px solid var(--accent-cyan);background-color:#06b6d433;align-self:flex-end}.chat-input-area{background-color:#ffffff05;border-top:1px solid #ffffff1a;gap:.5rem;padding:1rem;display:flex}#chat-input{background-color:var(--bg-main);border-radius:var(--radius-sm);color:var(--text-primary);border:1px solid #fff3;outline:none;flex:1;padding:.8rem}#chat-input:focus{border-color:var(--accent-cyan)}#send-chat{background-color:var(--accent-cyan);color:#fff;border-radius:var(--radius-sm);cursor:pointer;border:none;padding:0 1rem;transition:background-color .2s}#send-chat:hover{background-color:var(--accent-blue)}.typing{animation:1.5s steps(4,end) infinite typing;display:inline-block}@keyframes typing{0%,to{opacity:0}50%{opacity:1}}