@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-gradient:linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);--bg-element:#1e293b66;--bg-hover:#33415599;--border-color:#ffffff14;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#8b5cf6;--accent-glow:#8b5cf680;--radius-lg:16px;--radius-md:12px;--radius-sm:8px;--shadow-glow:0 0 20px var(--accent-glow);--transition:all .3s cubic-bezier(.25, .8, .25, 1);--sidebar-width:240px;--sidebar-collapsed-width:0px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.6}.app-layout{min-height:100vh;display:flex}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;padding:40px 32px;overflow-y:auto}.auth-page{justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{width:100%;max-width:400px}.auth-form{flex-direction:column;gap:16px;display:flex}.form-field{flex-direction:column;gap:6px;display:flex}.form-field label{color:var(--text-secondary);font-size:.875rem;font-weight:500}.form-field input{border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);border-radius:6px;padding:8px 12px;font-size:.9375rem}.form-field input:focus{border-color:var(--accent);outline:none}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:6px;width:100%;margin-top:4px;padding:10px 16px;font-size:.9375rem;font-weight:500}.btn-primary:hover:not(:disabled){opacity:.9}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.auth-error{color:#ef4444;margin:0;font-size:.875rem}.auth-footer{color:var(--text-muted);text-align:center;margin-top:8px;font-size:.875rem}.sidebar{width:var(--sidebar-width);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--border-color);z-index:100;background:#0f172a99;flex-direction:column;height:100vh;transition:transform .3s;display:flex;position:fixed;top:0;left:0}.sidebar-header{border-bottom:1px solid var(--border-color);padding:32px 24px}.sidebar-title{background:linear-gradient(90deg,#e2e8f0,#8b5cf6);-webkit-text-fill-color:transparent;letter-spacing:-.02em;-webkit-background-clip:text;background-clip:text;font-size:1.5rem;font-weight:700}.sidebar-nav{flex-direction:column;flex:1;gap:8px;padding:24px 16px;display:flex}.nav-link{border-radius:var(--radius-md);color:var(--text-secondary);transition:var(--transition);border:1px solid #0000;align-items:center;gap:12px;padding:12px 16px;font-size:.95rem;font-weight:500;text-decoration:none;display:flex}.nav-link:hover{background:var(--bg-hover);color:var(--text-primary);transform:translate(4px)}.nav-link.active{color:var(--accent);background:#8b5cf626;border-color:#8b5cf64d}.nav-link.active:hover{background:#8b5cf633}.sidebar-footer{border-top:1px solid var(--border-color);flex-direction:column;align-items:center;gap:12px;padding:20px 24px;display:flex}.logout-btn{border-radius:var(--radius-md);width:100%;color:var(--text-secondary);cursor:pointer;transition:var(--transition);background:0 0;border:1px solid #0000;align-items:center;gap:12px;padding:12px 16px;font-size:.95rem;font-weight:500;display:flex}.logout-btn:hover{background:var(--bg-hover);color:var(--text-primary);transform:translate(4px)}.sidebar-version{color:var(--text-muted);font-size:.75rem}.mobile-menu-btn{z-index:110;border-radius:var(--radius-md);background:var(--bg-element);border:1px solid var(--border-color);width:44px;height:44px;color:var(--text-primary);cursor:pointer;transition:var(--transition);justify-content:center;align-items:center;display:none;position:fixed;top:20px;left:20px}.mobile-menu-btn:hover{background:var(--bg-hover);border-color:#8b5cf64d}.mobile-overlay{z-index:90;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;display:none;position:fixed;inset:0}@media (width<=768px){.mobile-menu-btn{display:flex}.sidebar{transform:translate(-100%)}.sidebar.mobile-open{transform:translate(0)}.mobile-overlay{display:block}.main-content{margin-left:0;padding:80px 20px 40px}}.card{background:var(--bg-element);border:1px solid var(--border-color);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(16px);transition:var(--transition);padding:24px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.feed-list{flex-direction:column;gap:2px;display:flex}.cluster-list-item{border-bottom:1px solid var(--border-color)}.cluster-list-header{cursor:default;align-items:center;gap:12px;padding:12px 16px;display:flex}.cluster-chevron{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;align-items:center;padding:4px;transition:transform .2s,color .2s,background .2s;display:flex}.cluster-chevron:hover{color:var(--text-primary);background:var(--bg-hover)}.cluster-chevron.is-expanded{transform:rotate(90deg)}.cluster-title-link{color:var(--text-primary);flex:1;font-size:1rem;font-weight:600;text-decoration:none}.cluster-title-link:hover{color:var(--accent)}.cluster-badge{color:#c4b5fd;background:#8b5cf626;border:1px solid #8b5cf64d;border-radius:20px;flex-shrink:0;padding:4px 10px;font-size:.75rem;font-weight:500}.btn-mark-all-read{border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:var(--transition);background:0 0;flex-shrink:0;align-items:center;gap:4px;padding:4px 10px;font-family:inherit;font-size:.75rem;display:inline-flex}.btn-mark-all-read:hover{color:var(--accent);border-color:#8b5cf64d}.cluster-items-list{padding-bottom:8px;padding-left:36px}.categories-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:16px;display:grid}.category-card{color:inherit;cursor:pointer;text-decoration:none;display:block}.category-card:hover{border-color:var(--accent);transform:translateY(-2px)}.category-card h3{margin:0 0 12px;font-size:1.1rem}.category-stats{color:var(--text-muted);gap:16px;margin:0;font-size:.85rem;display:flex}.back-link{color:var(--text-muted);align-items:center;gap:4px;margin-bottom:12px;font-size:.9rem;text-decoration:none;display:inline-flex}.back-link:hover{color:var(--text-primary)}.article-list{flex-direction:column;gap:12px;display:flex}.article-row{border-radius:var(--radius-md);transition:var(--transition);background:#0f172a66;border:1px solid #0000;flex-direction:row;align-items:center;gap:12px;padding:10px 12px;display:flex;position:relative}.article-row:hover{background:var(--bg-hover);border-color:var(--border-color)}.item-checkbox{width:16px;height:16px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}.item-content{flex:1;min-width:0}.btn-mark-read{border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:var(--transition);background:0 0;flex-shrink:0;align-items:center;gap:4px;padding:4px 8px;font-family:inherit;font-size:.75rem;display:inline-flex}.btn-mark-read:hover{color:var(--accent);border-color:#8b5cf64d}.article-title{color:var(--text-primary);margin-bottom:4px;font-size:.95rem;font-weight:500;text-decoration:none;transition:color .2s;display:block}.article-title:hover{color:var(--accent)}.article-meta{color:var(--text-muted);justify-content:space-between;font-size:.8rem;display:flex}.article-row.is-read{opacity:.5}.article-row.is-read .article-title{color:var(--text-muted);text-decoration:line-through}.btn-view-more{border:1px solid var(--border-color);border-radius:var(--radius-sm);width:100%;color:var(--text-secondary);transition:var(--transition);cursor:pointer;background:#ffffff08;justify-content:center;align-items:center;gap:8px;margin-top:20px;padding:10px;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-flex}.btn-view-more:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.loading{height:50vh;color:var(--text-secondary);justify-content:center;align-items:center;font-size:1.2rem;display:flex}.loading-spinner{border:3px solid #8b5cf633;border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;margin-bottom:16px;animation:1s linear infinite spin}.loading-container{flex-direction:column;align-items:center;display:flex}.drilldown-header{align-items:center;gap:20px;margin-bottom:30px;display:flex}.back-link{color:var(--text-secondary);transition:var(--transition);background:var(--bg-element);border:1px solid var(--border-color);border-radius:20px;align-items:center;gap:6px;padding:8px 16px;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-flex}.back-link:hover{color:#fff;background:var(--accent);border-color:var(--accent)}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{opacity:0;animation:.5s ease-out forwards fadeInUp}.time-window-tabs{gap:8px;margin-bottom:24px;display:flex}.time-window-tab{border:1px solid var(--border-color);background:var(--bg-element);color:var(--text-secondary);cursor:pointer;transition:var(--transition);border-radius:20px;padding:8px 20px;font-family:inherit;font-size:.9rem;font-weight:500}.time-window-tab:hover{background:var(--bg-hover);color:var(--text-primary);border-color:#8b5cf64d}.time-window-tab.active{color:var(--accent);background:#8b5cf626;border-color:#8b5cf666}.feed-section{margin-bottom:48px}.feed-section-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.feed-section-header h2{font-size:1.5rem;font-weight:600}.see-all-link{color:var(--text-secondary);transition:var(--transition);align-items:center;gap:6px;font-size:.9rem;font-weight:500;text-decoration:none;display:inline-flex}.see-all-link:hover{color:var(--accent)}.empty-state{text-align:center;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:64px 24px;display:flex}.empty-state p{font-size:1.1rem}.pagination-controls{justify-content:center;align-items:center;gap:16px;margin-top:24px;padding:8px 0;display:flex}.pagination-controls button{border:1px solid var(--border-color);background:var(--bg-element);color:var(--text-secondary);cursor:pointer;transition:var(--transition);border-radius:20px;padding:8px 20px;font-family:inherit;font-size:.9rem;font-weight:500}.pagination-controls button:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary);border-color:#8b5cf64d}.pagination-btn{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-element);color:var(--text-secondary);cursor:pointer;transition:var(--transition);min-width:36px;padding:6px 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