:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}tml,body{margin:0;padding:0;width:100%;overflow-x:hidden}#root{width:100%;margin:0;padding:0;display:flex;justify-content:center;min-height:100vh}.chronoscope-container{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;width:100%;max-width:100vw;display:flex;flex-direction:column;align-items:center}.chronoscope-header{background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.2);padding:1.5rem 0;color:#fff;width:100%}.header-content{max-width:1600px;margin:0 auto;padding:0 2rem}.header-brand{display:flex;align-items:center;gap:1rem}.header-title{margin:0;font-size:2rem;font-weight:700}.header-subtitle{margin:0;opacity:.9}.main-content{width:100%;max-width:1600px;margin:0 auto;padding:2rem;box-sizing:border-box;display:flex;flex-direction:column;align-items:stretch}.card{background:#fff;border-radius:16px;padding:2rem;box-shadow:0 20px 40px #0000001a;margin-bottom:2rem;width:100%;box-sizing:border-box}.card-title{margin:0 0 1rem;font-size:1.5rem;color:#1e293b}.data-sources{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}.data-source-btn{padding:12px 20px;border:2px solid #e2e8f0;border-radius:8px;background:#fff;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:#333}.data-source-btn:hover{border-color:#667eea;transform:translateY(-2px);box-shadow:0 4px 12px #667eea26}.data-source-btn.selected{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-color:transparent}.upload-label{padding:12px 20px;border:2px solid #e2e8f0;border-radius:8px;background:#fff;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:#333}.upload-label:hover{border-color:#667eea;transform:translateY(-2px);box-shadow:0 4px 12px #667eea26}.upload-label.uploaded{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-color:transparent}.upload-input{display:none}.dataset-info{margin-top:1rem;padding:1rem;background:#f8fafc;border-radius:8px}.dataset-info p{margin:0;color:#64748b}.loading-state{margin-top:1rem;display:flex;align-items:center;gap:8px;color:#667eea}.loading-spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.tabs-container{border-bottom:1px solid #e2e8f0;margin-bottom:2rem}.tabs-nav{display:flex;gap:1rem;flex-wrap:wrap}.tab-btn{padding:12px 24px;border:none;background:transparent;cursor:pointer;font-size:16px;font-weight:500;color:#64748b;border-bottom:2px solid transparent;transition:all .3s ease}.tab-btn:hover{color:#334155}.tab-btn.active{color:#667eea;border-bottom-color:#667eea}.tab-content{animation:fadeIn .3s ease-in;width:100%;box-sizing:border-box}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.section-title{font-size:1.25rem;margin-bottom:1rem;color:#1e293b}.section-description{color:#64748b;margin-bottom:1.5rem}.tab-content>div{width:100%}.chart-container{background:#f8fafc;padding:1.5rem;border-radius:12px;margin-bottom:2rem;width:100%}.terms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem}.terms-section h4{margin-bottom:1rem;display:flex;align-items:center;gap:8px}.emerging-header{color:#10b981}.declining-header{color:#ef4444}.term-card{padding:1rem;border-radius:12px;margin-bottom:1rem;display:flex;justify-content:space-between;align-items:center;color:#fff}.term-card.emerging{background:linear-gradient(135deg,#10b981,#059669)}.term-card.declining{background:linear-gradient(135deg,#ef4444,#dc2626)}.term-info{flex:1}.term-name{font-weight:700;font-size:1.1rem}.term-frequency{font-size:.9rem;opacity:.9}.term-change{font-size:1.5rem;font-weight:700}.topic-year-container{margin-bottom:1.5rem;padding:1rem;background:#f8fafc;border-radius:8px}.topic-year-title{color:#667eea;margin-bottom:.5rem}.topic-pills{display:flex;flex-wrap:wrap;gap:8px}.topic-pill{padding:6px 12px;background:#fff;border-radius:20px;font-size:14px;border:1px solid #e2e8f0}.empty-state-topic{padding:2rem;background:#f8fafc;border-radius:12px;text-align:center}.empty-state-topic svg{color:#667eea;margin:0 auto 1rem;display:block}.empty-state-topic p{color:#64748b}.narrative-content{padding:1.5rem;background:#f8fafc;border-radius:12px}.narrative-content p{color:#64748b;margin-bottom:1rem}.narrative-period{margin-bottom:1rem;padding:1rem;background:#fff;border-radius:8px;border-left:4px solid}.narrative-period.cloud-era{border-left-color:#667eea}.narrative-period.ai-era{border-left-color:#10b981}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.metric-card{padding:1rem;background:#f8fafc;border-radius:8px;text-align:center}.metric-value{font-size:2rem;font-weight:700;color:#667eea}.metric-label{color:#64748b;margin-top:.5rem}.insight-box{padding:1.5rem;background:#f8fafc;border-radius:12px}.insight-box h4{margin-bottom:1rem;color:#1e293b}.insight-item{margin-bottom:1rem;padding:1rem;background:#fff;border-radius:8px;border-left:4px solid}.insight-item.growth{border-left-color:#10b981}.insight-item.decline{border-left-color:#ef4444}.insight-item.recommendation{border-left-color:#667eea}.drift-controls{margin-bottom:1.5rem}.drift-controls label{display:block;margin-bottom:.5rem;font-weight:700}.drift-select{padding:8px;border-radius:4px;border:1px solid #e2e8f0;width:200px;font-size:14px}.drift-analysis{padding:1.5rem;background:#f8fafc;border-radius:12px}.drift-comparison{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.drift-period{padding:1rem;background:#fff;border-radius:8px}.drift-period h4{margin-bottom:.5rem}.drift-period.past h4{color:#667eea}.drift-period.present h4{color:#10b981}.drift-context{font-size:.9rem;color:#64748b}.drift-score-card{margin-top:1rem;padding:1rem;background:#fff;border-radius:8px;display:flex;justify-content:space-between;align-items:center}.drift-score-info h4{color:#1e293b;margin:0 0 .5rem}.drift-score-info p{font-size:.9rem;color:#64748b;margin:0}.drift-score-value{font-size:2rem;font-weight:700;color:#667eea}.empty-state{text-align:center;padding:3rem}.empty-state svg{color:#667eea;margin-bottom:1rem}.empty-state h3{color:#1e293b;margin-bottom:1rem}.empty-state p{color:#64748b}.footer{text-align:center;color:#fff;margin-top:3rem;opacity:.9;padding-bottom:2rem}@media (max-width: 768px){.header-title{font-size:1.5rem}.tabs-nav{overflow-x:auto;-webkit-overflow-scrolling:touch}.tab-btn{white-space:nowrap}.terms-grid,.insights-grid,.drift-comparison{grid-template-columns:1fr}.data-sources{flex-direction:column}.data-source-btn,.upload-label{width:100%;justify-content:center}}