:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #1a1a2e;--bg-card-hover: #22223a;--bg-input: #16162a;--border: #2a2a44;--border-focus: #6c5ce7;--text-primary: #e8e8f0;--text-secondary: #9090b0;--text-muted: #606080;--accent: #6c5ce7;--accent-glow: rgba(108, 92, 231, .3);--accent-secondary: #00d2ff;--success: #00e676;--warning: #ffab00;--danger: #ff5252;--radius: 12px;--radius-sm: 8px;--shadow: 0 4px 20px rgba(0, 0, 0, .4);--transition: all .2s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-secondary)}.app{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border);padding:24px 16px;display:flex;flex-direction:column;gap:8px;position:fixed;top:0;left:0;bottom:0;z-index:10}.sidebar-logo{font-size:20px;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:32px;padding:0 8px;letter-spacing:-.5px}.sidebar-logo span{font-weight:400;opacity:.7}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition);border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--bg-card);color:var(--text-primary)}.nav-item.active{background:var(--accent-glow);color:var(--accent);border:1px solid rgba(108,92,231,.2)}.nav-icon{font-size:18px;width:24px;text-align:center}.main-content{flex:1;margin-left:260px;padding:32px;max-width:1200px}.page-header{margin-bottom:32px}.page-title{font-size:28px;font-weight:700;letter-spacing:-.5px}.page-subtitle{color:var(--text-secondary);font-size:14px;margin-top:4px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:var(--transition)}.card:hover{border-color:var(--accent);box-shadow:0 0 20px var(--accent-glow);transform:translateY(-1px)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px}.submit-section{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:32px}.submit-form{display:flex;gap:12px}.input{flex:1;padding:12px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:14px;outline:none;transition:var(--transition)}.input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.input::placeholder{color:var(--text-muted)}.btn{padding:12px 24px;border-radius:var(--radius-sm);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;border:none;transition:var(--transition);display:inline-flex;align-items:center;gap:8px;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--accent),#8b7cf7);color:#fff}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px var(--accent-glow)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-danger{background:#ff525226;color:var(--danger);border:1px solid rgba(255,82,82,.3)}.btn-danger:hover{background:#ff525240}.btn-sm{padding:6px 14px;font-size:12px}.ficha-card{cursor:pointer}.ficha-title{font-size:16px;font-weight:600;margin-bottom:8px;line-height:1.4}.ficha-tldr{font-size:13px;color:var(--text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.ficha-meta{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap}.ficha-tag{font-size:11px;padding:3px 10px;border-radius:20px;background:#6c5ce726;color:var(--accent);font-weight:500}.ficha-tag.channel{background:#00d2ff26;color:var(--accent-secondary)}.ficha-detail{max-width:800px}.ficha-detail .back-link{display:inline-flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:13px;margin-bottom:20px;cursor:pointer}.ficha-detail .back-link:hover{color:var(--accent)}.section-title{font-size:14px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin:24px 0 12px}.key-point{padding:8px 0;font-size:14px;border-bottom:1px solid var(--border);line-height:1.6}.key-point:last-child{border-bottom:none}.progress-bar{background:var(--bg-input);border-radius:20px;overflow:hidden;height:6px;margin-top:12px}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-secondary));border-radius:20px;transition:width .5s ease}.progress-text{font-size:13px;color:var(--accent-secondary);margin-top:8px;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.search-result{padding:16px;margin-bottom:12px}.search-similarity{font-size:11px;color:var(--success);font-weight:600}.search-synthesis{background:var(--bg-card);border-left:3px solid var(--accent);padding:16px 20px;margin-top:20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:14px;line-height:1.7;white-space:pre-wrap}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:28px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center}.stat-value{font-size:32px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px;text-transform:uppercase;letter-spacing:.5px}.loading{display:flex;justify-content:center;padding:40px}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state .icon{font-size:48px;margin-bottom:16px}.empty-state p{font-size:14px}@media(max-width:768px){.sidebar{display:none}.main-content{margin-left:0;padding:16px}.submit-form{flex-direction:column}.card-grid{grid-template-columns:1fr}}