.session-prompt{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-xl);position:relative;overflow:hidden;background:var(--bg-primary)}.session-prompt:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);z-index:-1}.session-card{background:var(--surface-primary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:var(--space-2xl);max-width:420px;width:100%;box-shadow:0 4px 12px #0000001a;position:relative;z-index:1}.session-card h1{font-size:2rem;font-weight:700;margin:0 0 var(--space-sm) 0;text-align:center;color:var(--text-primary);letter-spacing:-.02em}.subtitle{text-align:center;color:var(--text-secondary);margin-bottom:var(--space-xl);font-size:.9375rem;font-weight:400}.form-group{margin-bottom:var(--space-lg)}.form-group label{display:block;margin-bottom:var(--space-sm);font-weight:500;font-size:.875rem;color:var(--text-secondary)}.form-group input{width:100%;padding:var(--space-md) var(--space-lg);font-size:1.125rem;border-radius:var(--radius-lg);border:2px solid var(--border-primary);background:var(--surface-glass);color:var(--text-primary);-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);transition:all var(--transition-base);font-weight:500}.form-group input::placeholder{color:var(--text-tertiary)}.form-group input:focus{outline:none;border-color:var(--primary);background:var(--surface-glass-heavy);box-shadow:0 0 0 4px var(--primary-glow),0 10px 40px #6366f133;transform:translateY(-2px)}.form-group small{display:block;margin-top:var(--space-sm);color:var(--text-tertiary);font-size:.8125rem;padding-left:var(--space-xs)}.btn-primary{width:100%;padding:var(--space-md) var(--space-lg);font-size:1rem;font-weight:500;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);box-shadow:0 2px 4px #0000001a}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(.3)}.info-box{margin-top:var(--space-2xl);padding:var(--space-lg);background:var(--surface-glass);-webkit-backdrop-filter:var(--blur-sm);backdrop-filter:var(--blur-sm);border-radius:var(--radius-lg);border:1px solid var(--primary);position:relative;overflow:hidden;opacity:0;animation:fadeIn .8s ease-out .6s forwards}.info-box:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary)}.info-box p{margin:var(--space-sm) 0;color:var(--text-secondary);font-size:.9375rem;line-height:1.6}.info-box strong{color:var(--primary-light);font-weight:600}.loading-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:var(--bg-overlay);-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);display:flex;align-items:center;justify-content:center;z-index:10;border-radius:var(--radius-2xl)}.spinner{width:48px;height:48px;border:3px solid var(--surface-tertiary);border-bottom-color:var(--primary);border-radius:50%;animation:rotation 1s linear infinite}@keyframes rotation{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-color-scheme: light){.session-prompt:before{opacity:.1}.session-prompt:after{opacity:.05}.session-card{background:#ffffffd9;box-shadow:0 20px 60px #0000001a,0 0 100px var(--primary-glow)}.form-group input{background:#ffffffe6;border-color:var(--border-primary)}.info-box{background:#ffffffe6}}@media (max-width: 640px){.session-card{padding:var(--space-xl)}.session-card h1{font-size:2.5rem}.session-card h1:before{font-size:2rem}}.group-list{display:flex;flex-direction:column;gap:.5rem;animation:slideInLeft .4s ease-out}@keyframes slideInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.group-item{width:100%;display:flex;align-items:center;gap:.5rem;text-align:left;padding:1rem 1.25rem;background:linear-gradient(135deg,#0000004d,#0003);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fffffff2;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;font-size:.95rem;font-weight:500;letter-spacing:-.01em;box-shadow:0 2px 8px #0000004d}.group-item:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:12px;padding:1px;background:linear-gradient(135deg,transparent,rgba(99,102,241,.3),transparent);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .3s ease}.group-item:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s ease}.group-item:hover:after{left:100%}.group-item:hover{background:linear-gradient(135deg,#0006,#0000004d);border-color:#6366f199;transform:translate(4px) scale(1.02);box-shadow:0 8px 16px #0006,0 0 0 1px #6366f14d;color:#fff}.group-item:hover:before{opacity:1}.group-item.active{background:linear-gradient(135deg,#6366f1,#8b5cf6);border-color:#6366f1cc;color:#fff;transform:translate(4px);box-shadow:0 8px 24px #6366f166,0 0 0 1px #6366f180,inset 0 1px #fff3;font-weight:600}.group-item.active:before{background:linear-gradient(135deg,#fff3,#ffffff1a);opacity:1}.group-item.active:after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent)}.group-item:active{transform:translate(2px) scale(.98)}.drag-handle{color:#ffffff40;font-size:.75rem;letter-spacing:-2px;cursor:grab;-webkit-user-select:none;user-select:none;margin-left:-.25rem}.group-item:hover .drag-handle{color:#ffffff80}.group-item.dragging{opacity:.4;transform:none}.group-item-watchlist .watchlist-star{color:#fbbf24;font-size:.85rem}.group-item-watchlist.active .watchlist-star{color:#fde68a}.empty-state{color:var(--text-tertiary);font-size:.9rem;text-align:center;margin-top:2rem;padding:2rem;background:#ffffff08;border:1px dashed rgba(255,255,255,.1);border-radius:12px;animation:fadeIn .5s ease-in}.group-item-badge{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:24px;padding:0 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var(--border-primary);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;position:relative;height:100%;box-shadow:var(--shadow-md)}.video-thumbnail{display:block;position:relative;width:100%;padding-top:56.25%;background:linear-gradient(135deg,#1e293b,#334155);overflow:hidden}.video-thumbnail img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.shorts-badge{position:absolute;top:8px;right:8px;background:#f03;color:#fff;font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:.5px;z-index:1}.watchlist-btn{position:absolute;top:8px;left:8px;z-index:2;width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:#0009;color:#fff;border:none;border-radius:50%;cursor:pointer;opacity:0;transition:opacity .15s ease,background .15s ease}.video-card:hover .watchlist-btn,.watchlist-btn:focus-visible{opacity:1}.watchlist-btn:hover{background:#000c}.watchlist-btn.active{opacity:1;background:var(--primary)}.watchlist-btn.active:hover{background:var(--primary-dark)}.thumbnail-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:4rem;color:var(--text-tertiary);background:var(--gradient-glass)}.video-info{padding:var(--space-lg);flex:1;display:flex;flex-direction:column;gap:var(--space-sm)}.video-title{margin:0 0 var(--space-sm) 0;font-size:1rem;font-weight:600;line-height:1.4}.video-title a{color:var(--text-primary);text-decoration:none;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;letter-spacing:-.01em}.video-channel{margin:var(--space-xs) 0;color:var(--text-secondary);font-size:.9rem;font-weight:500;display:flex;align-items:center;gap:var(--space-xs)}.video-channel .channel-link{color:inherit;text-decoration:none;cursor:pointer}.video-date{margin:var(--space-xs) 0;color:var(--text-tertiary);font-size:.85rem;display:flex;align-items:center;gap:var(--space-xs)}.video-description{margin-top:var(--space-md);font-size:.85rem;color:var(--text-secondary);border-top:1px solid var(--border-secondary);padding-top:var(--space-md)}.video-description summary{cursor:pointer;color:var(--primary);margin-bottom:var(--space-sm);font-weight:500}.video-description p{margin:0;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}@media (prefers-color-scheme: light){.video-card{box-shadow:var(--shadow-sm)}.video-thumbnail{background:var(--bg-tertiary)}}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.new-video-wrapper{position:relative}.new-indicator{position:absolute;top:-10px;right:-10px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:.75rem;font-weight:700;padding:.25rem .75rem;border-radius:var(--radius-lg);z-index:10;box-shadow:0 2px 8px #3b82f680;letter-spacing:.05em;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 2px 8px #3b82f680}50%{transform:scale(1.05);box-shadow:0 4px 12px #3b82f6b3}}.video-grid>*{transition:transform .3s ease}.video-grid{min-height:200px;position:relative}.video-grid-updating{position:relative}.video-grid-updating:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(var(--background-rgb),.5);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .2s ease}.video-grid-updating.is-updating:after{opacity:1;pointer-events:auto}@media (max-width: 768px){.video-grid{grid-template-columns:1fr}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background-color:var(--surface-primary);border-radius:12px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);border:1px solid var(--border-primary)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--border-primary)}.modal-header h2{margin:0;font-size:1.5rem}.btn-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-tertiary);padding:0;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border-radius:4px}.btn-close:hover{background-color:var(--surface-tertiary);color:var(--text-primary)}.modal-body{padding:1.5rem}.channel-preview{background-color:var(--bg-tertiary);padding:1rem;border-radius:8px;margin-bottom:1.5rem;border:1px solid var(--border-primary)}.channel-preview h3{margin:0 0 .5rem;color:var(--primary)}.channel-preview p{margin:0;color:var(--text-secondary);font-size:.9rem}.group-checkboxes{display:flex;flex-direction:column;gap:.75rem;margin-top:.75rem}.checkbox-label{display:flex;align-items:center;gap:.75rem;cursor:pointer;padding:.5rem;border-radius:4px;transition:background-color .2s}.checkbox-label:hover{background-color:var(--surface-secondary)}.checkbox-label input[type=checkbox]{width:1.2rem;height:1.2rem;cursor:pointer}.modal-actions{display:flex;gap:1rem;margin-top:1.5rem}.modal-actions button{flex:1}@media (prefers-color-scheme: light){.modal-content{box-shadow:var(--shadow-xl)}}.channel-details-modal{max-width:900px;width:90vw;max-height:85vh;display:flex;flex-direction:column;background:var(--surface-primary);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--border-primary);box-shadow:var(--shadow-2xl);animation:modalSlideUp .4s cubic-bezier(.4,0,.2,1)}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(40px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.tabs{display:flex;gap:8px;padding:16px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border-primary);position:relative}.tabs:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.5),transparent)}.tab{padding:10px 20px;background:transparent;border:1px solid transparent;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;color:var(--text-secondary);transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.tab:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(99,102,241,.1),transparent);opacity:0;transition:opacity .3s ease}.tab:hover{color:var(--text-primary);background:var(--surface-glass);border-color:var(--border-primary);transform:translateY(-1px)}.tab:hover:before{opacity:1}.tab.active{color:#fff;background:linear-gradient(135deg,#6366f1,#8b5cf6);border-color:#6366f180;box-shadow:0 4px 12px #6366f166,inset 0 1px #fff3;transform:translateY(-1px)}.tab.active:before{opacity:0}.modal-body{overflow-y:auto;padding:20px;flex:1}.info-tab{max-width:700px;margin:0 auto}.channel-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:15px;margin-bottom:30px;padding:20px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:8px}.stat-item{display:flex;flex-direction:column;gap:5px}.stat-label{font-size:12px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:24px;font-weight:600;color:var(--text-primary)}.channel-info{display:flex;flex-direction:column;gap:15px}.info-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border-primary)}.info-label{font-weight:500;color:var(--text-secondary);min-width:200px}.info-value{color:var(--text-primary);text-align:right}.info-value.link{color:#3b82f6;text-decoration:none}.info-value.link:hover{text-decoration:underline}.info-value.mono{font-family:Courier New,monospace;font-size:13px}.edit-form{display:flex;flex-direction:column;gap:20px;padding:20px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:8px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-weight:500;color:var(--text-primary);font-size:14px}.form-input{padding:10px 12px;border:1px solid var(--border-primary);border-radius:6px;font-size:14px;transition:border-color .2s;background:var(--surface-glass);color:var(--text-primary)}.form-input:focus{outline:none;border-color:var(--primary);background:var(--surface-glass-heavy)}.checkbox-group label{display:flex;align-items:center;gap:10px;cursor:pointer}.checkbox-group input[type=checkbox]{width:18px;height:18px;cursor:pointer}.form-hint{margin:0;font-size:13px;color:var(--text-tertiary);padding-left:28px}.button-group{display:flex;gap:10px;margin-top:20px}.btn-primary,.btn-secondary,.btn-danger{padding:10px 20px;border:1px solid rgba(255,255,255,.15);border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border-color:#6366f180;box-shadow:0 4px 12px #6366f14d}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#4f46e5,#7c3aed);box-shadow:0 6px 16px #6366f166;transform:translateY(-1px)}.btn-secondary{background:var(--surface-glass);color:var(--text-primary);border-color:var(--border-primary)}.btn-secondary:hover:not(:disabled){background:var(--surface-glass-heavy);border-color:var(--primary);transform:translateY(-1px)}.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border-color:#ef444480;box-shadow:0 4px 12px #ef44444d}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#dc2626,#b91c1c);box-shadow:0 6px 16px #ef444466;transform:translateY(-1px)}.btn-primary:disabled,.btn-secondary:disabled,.btn-danger:disabled{opacity:.5;cursor:not-allowed}.danger-zone{margin-top:40px;padding:20px;border:2px solid rgba(239,68,68,.3);border-radius:8px;background:#ef44441a}.danger-zone h3{margin:0 0 10px;color:#fca5a5;font-size:16px}.danger-hint{margin:10px 0 0;font-size:13px;color:#fca5a5cc}.videos-tab{max-width:100%}.videos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.channel-video-item{display:flex;flex-direction:column;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:8px;overflow:hidden;text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s}.channel-video-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #6366f133;border-color:var(--primary)}.channel-video-thumb{width:100%;aspect-ratio:16 / 9;object-fit:cover}.channel-video-info{padding:12px}.channel-video-title{font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.channel-video-date{font-size:12px;color:var(--text-tertiary)}.groups-tab{max-width:600px;margin:0 auto}.current-groups,.available-groups{margin-bottom:30px}.current-groups h3,.available-groups h3{margin:0 0 15px;font-size:16px;color:var(--text-primary);font-weight:600}.modal-group-list{display:flex;flex-direction:column;gap:10px}.modal-group-item{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:6px;transition:background .2s}.modal-group-item:hover{background:var(--surface-secondary);border-color:var(--primary)}.modal-group-name{font-weight:500;color:var(--text-primary)}.btn-remove-small,.btn-add-small{padding:6px 14px;border:1px solid rgba(255,255,255,.15);border-radius:4px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.btn-remove-small{background:#ef444426;color:#fca5a5;border-color:#ef44444d}.btn-remove-small:hover:not(:disabled){background:#ef444440;border-color:#ef444480;color:#fee2e2}.btn-add-small{background:#6366f126;color:#a5b4fc;border-color:#6366f14d}.btn-add-small:hover:not(:disabled){background:#6366f140;border-color:#6366f180;color:#c7d2fe}.btn-remove-small:disabled,.btn-add-small:disabled{opacity:.5;cursor:not-allowed}.empty-state{text-align:center;padding:40px 20px;color:var(--text-tertiary);font-size:14px}.loading{text-align:center;padding:40px 20px;color:var(--text-secondary);font-size:14px}.error{text-align:center;padding:40px 20px;color:var(--danger);font-size:14px}@media (max-width: 768px){.channel-details-modal{width:95vw;max-height:90vh}.tabs{padding:0 10px}.tab{padding:10px 12px;font-size:13px}.modal-body{padding:15px}.channel-stats{grid-template-columns:1fr;padding:15px}.info-row{flex-direction:column;align-items:flex-start;gap:5px}.info-value{text-align:left}.button-group{flex-direction:column}.videos-grid{grid-template-columns:1fr}}@media (prefers-color-scheme: light){.channel-details-modal{box-shadow:var(--shadow-2xl)}.tabs{background:var(--bg-tertiary)}.channel-stats,.edit-form{background:var(--surface-secondary)}.channel-video-item,.modal-group-item{background:var(--surface-primary)}}.dashboard{display:flex;min-height:100vh;position:relative}.sidebar{width:300px;flex-shrink:0;background:var(--bg-secondary);border-right:1px solid var(--border-primary);padding:var(--space-lg) var(--space-xl);height:100vh;position:sticky;top:0;display:flex;flex-direction:column;overflow:hidden}.sidebar-brand{display:flex;align-items:center;gap:var(--space-sm);padding-bottom:var(--space-lg);margin-bottom:var(--space-lg);border-bottom:1px solid var(--border-secondary)}.sidebar-brand h1{margin:0;font-size:1.25rem;font-weight:600;color:var(--text-primary);letter-spacing:-.01em}.sidebar-groups{flex:1;overflow-y:auto;margin:0 calc(-1 * var(--space-sm));padding:0 var(--space-sm) var(--space-md)}.sidebar-footer{border-top:1px solid var(--border-secondary);padding-top:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-sm)}.sidebar-footer .btn-block{width:100%;justify-content:center}.sidebar-footer-row{display:flex;gap:var(--space-sm)}.sidebar-footer-row .btn-text{flex:1}.sidebar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg);padding-bottom:var(--space-lg);border-bottom:1px solid var(--border-secondary)}.sidebar-header h2{font-size:.875rem;font-weight:600;letter-spacing:.05em;color:var(--text-secondary);text-transform:uppercase}.btn-add-group{background:transparent;border:1px solid var(--border-primary);color:var(--text-secondary);width:28px;height:28px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.25rem;line-height:1}.new-group-form{display:flex;gap:var(--space-sm);margin-bottom:var(--space-lg);opacity:1!important;animation:none;position:relative;z-index:9999}.new-group-form input{flex:1;padding:.625rem var(--space-md);font-size:.875rem;background:#fff!important;border:1px solid var(--border-primary)!important;border-radius:var(--radius-md);color:#1f2937!important;transition:all var(--transition-base);position:relative;z-index:10000;min-height:40px;width:100%}@media (prefers-color-scheme: dark){.new-group-form input{background:#1f2937!important;color:#f9fafb!important;border:1px solid var(--border-primary)!important}}.new-group-form input::placeholder{color:#6b7280;opacity:1}.new-group-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.new-group-form button{padding:.625rem var(--space-lg);font-size:.875rem;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);font-weight:500}.new-group-form button:hover{transform:translate(2px);box-shadow:0 4px 12px #6366f166}.main-content{flex:1;padding:var(--space-2xl);overflow-y:auto;background:var(--bg-primary);position:relative}.content-header{margin-bottom:var(--space-2xl)}.group-name-display{display:flex;align-items:center;gap:var(--space-lg);margin-bottom:var(--space-sm)}.group-name-display h2{margin:0;font-size:1.875rem;font-weight:600;color:var(--text-primary);letter-spacing:-.02em;display:flex;align-items:center;gap:1rem}.sync-indicator{display:inline-flex;align-items:center;padding:.25rem .5rem;background:var(--surface-glass);border-radius:var(--radius-full);border:1px solid var(--border-secondary);font-size:.75rem}.sync-dot{width:8px;height:8px;background:var(--primary);border-radius:50%}.group-header-actions{display:flex;align-items:center;gap:var(--space-sm)}.group-name-edit{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-sm)}.group-name-input{padding:var(--space-md) var(--space-lg);font-size:1.75rem;font-weight:700;background:var(--surface-glass);-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);border:2px solid var(--primary);border-radius:var(--radius-lg);color:var(--text-primary);min-width:320px;transition:all var(--transition-base);box-shadow:0 0 0 4px var(--primary-glow)}.group-name-input:focus{outline:none;box-shadow:0 0 0 6px var(--primary-glow);transform:translateY(-2px)}.btn-text{display:inline-flex;align-items:center;justify-content:center;padding:.4rem .9rem;font-family:inherit;font-size:.85rem;font-weight:500;line-height:1.2;white-space:nowrap;color:var(--text-secondary);background:var(--surface-glass);border:1px solid var(--border-primary);border-radius:var(--radius-md);cursor:pointer}.btn-text:hover{color:var(--text-primary);border-color:var(--primary)}.btn-text-danger{color:#fca5a5;border-color:#ef44444d}.btn-text-danger:hover{color:#fecaca;border-color:#ef444499}.btn-text-active{background:var(--primary);border-color:var(--primary);color:#fff}.btn-text-active:hover{color:#fff}.video-count{color:var(--text-secondary);margin:var(--space-md) 0;font-size:.9375rem;font-weight:400}.channels-section{background:var(--surface-glass);border:1px solid var(--border-primary);border-radius:var(--radius-xl);padding:var(--space-xl);margin-bottom:var(--space-2xl);position:relative}.channels-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg);gap:var(--space-lg)}.channels-section h3{margin:0;font-size:.875rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.channel-add-select{padding:var(--space-sm) var(--space-md);font-size:.9rem;border-radius:var(--radius-md);border:1px solid var(--border-primary);background:var(--surface-glass);color:var(--text-primary);cursor:pointer;min-width:220px}.channel-add-select:focus{outline:none;border-color:var(--primary)}.channel-add-select:disabled{opacity:.5;cursor:not-allowed}.channel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-sm);max-height:320px;overflow-y:auto;padding-right:var(--space-sm)}.channel-grid::-webkit-scrollbar{width:6px}.channel-grid::-webkit-scrollbar-thumb{background:var(--primary);border-radius:var(--radius-full)}.channel-row{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-xs) var(--space-sm);background:var(--surface-glass);border:1px solid var(--border-primary);border-radius:var(--radius-md);min-height:38px}.channel-row-name{flex-shrink:0;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:left;padding:0;background:none;border:none;font-family:inherit;font-size:.9rem;font-weight:600;color:var(--text-primary);cursor:pointer}.channel-row-name:hover{color:var(--primary-light);text-decoration:underline}.channel-row-groups{flex:1;display:flex;flex-wrap:wrap;gap:var(--space-xs);min-width:0}.group-badge{font-size:.7rem;font-weight:500;padding:1px 8px;border-radius:var(--radius-full);background:#6366f126;border:1px solid rgba(99,102,241,.3);color:#a5b4fc;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}.channel-row .btn-remove-sm{margin-left:auto}.btn-remove-sm{background:transparent;color:var(--text-tertiary);border:none;padding:var(--space-xs) var(--space-sm);cursor:pointer;border-radius:var(--radius-sm);font-size:1.125rem;display:flex;align-items:center;justify-content:center}.btn-remove-sm:disabled{opacity:.3;cursor:not-allowed}.load-more-container{display:flex;flex-direction:column;align-items:center;gap:var(--space-lg);margin-top:var(--space-3xl);padding:var(--space-2xl)}.load-more-info{color:var(--text-secondary);font-size:.9rem;margin:0;text-align:center;line-height:1.6}.empty-state{text-align:center;padding:var(--space-3xl);color:var(--text-secondary)}.empty-state h3{font-size:1.5rem;margin-bottom:var(--space-md);color:var(--text-primary)}.empty-state p{font-size:1.125rem;margin-bottom:var(--space-xl)}@media (max-width: 768px){.dashboard{flex-direction:column}.sidebar{width:100%;height:auto;position:static;border-right:none;border-bottom:1px solid var(--border-primary);padding:var(--space-lg);overflow:visible}.sidebar-groups{flex:none;max-height:40vh}.main-content{padding:var(--space-lg)}.group-name-display h2{font-size:1.75rem}.channels-section{padding:var(--space-lg)}}@media (prefers-color-scheme: light){.sidebar{background:var(--bg-tertiary);border-right-color:var(--border-primary)}.channels-section{background:var(--surface-primary);box-shadow:var(--shadow-sm)}.channel-row{background:var(--surface-primary)}.group-badge{background:#6366f114;color:var(--primary-dark)}.btn-text-danger{color:#dc2626}.btn-text-danger:hover{color:#b91c1c}.channel-add-select{background:var(--surface-primary)}}.app{min-height:100vh;display:flex;flex-direction:column;position:relative;animation:fadeIn .5s ease-in}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.btn{font-family:inherit;font-size:.95rem;font-weight:500;line-height:1;padding:.875rem 1.75rem;border-radius:var(--radius-lg);border:1px solid transparent;cursor:pointer;text-transform:none;letter-spacing:.02em;display:inline-flex;align-items:center;gap:var(--space-sm)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 3px #0003}.btn-secondary{background:var(--surface-glass);color:var(--text-primary);border:1px solid var(--border-primary)}.btn-active{background:var(--primary);color:#fff;border:1px solid var(--primary)}.btn-danger{background:#ef4444;color:#fff;box-shadow:0 4px 14px #ef444466}.btn-icon{padding:.75rem;background:var(--surface-glass);border:1px solid var(--border-primary);border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px}.btn-sm{padding:.625rem 1.25rem;font-size:.875rem}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-3xl);gap:var(--space-lg)}.loading-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;font-size:1.5rem;color:var(--text-secondary)}.error{background:#ef44441a;border-color:#ef44444d;color:#fca5a5}.error:before{content:"⚠️";font-size:1.25rem}:root{--primary: #6366F1;--primary-dark: #4F46E5;--primary-light: #818CF8;--primary-glow: #6366F120;--accent: #EC4899;--accent-dark: #DB2777;--accent-light: #F472B6;--accent-glow: #EC489920;--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--info: #3B82F6;--bg-primary: #0A0A0B;--bg-secondary: #111113;--bg-tertiary: #18181B;--bg-elevated: #1F1F23;--bg-overlay: rgba(10, 10, 11, .85);--background: #0A0A0B;--surface-primary: #18181B;--surface-secondary: #27272A;--surface-tertiary: #3F3F46;--surface-glass: rgba(255, 255, 255, .05);--surface-glass-heavy: rgba(255, 255, 255, .08);--surface: #18181B;--surface-hover: #27272A;--text-primary: #FAFAFA;--text-secondary: #A1A1AA;--text-tertiary: #71717A;--text-accent: var(--primary-light);--text: #FAFAFA;--border-primary: rgba(255, 255, 255, .1);--border-secondary: rgba(255, 255, 255, .05);--border-accent: var(--primary);--border: rgba(255, 255, 255, .1);--gradient-primary: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);--gradient-accent: linear-gradient(135deg, #F093FB 0%, #F5576C 100%);--gradient-dark: linear-gradient(180deg, #0A0A0B 0%, #18181B 100%);--gradient-glass: linear-gradient(135deg, rgba(255,255,255,.1) 0%, rgba(255,255,255,.05) 100%);--gradient-glow: radial-gradient(circle at 50% 50%, var(--primary-glow) 0%, transparent 70%);--shadow-sm: 0 2px 4px rgba(0,0,0,.3);--shadow-md: 0 4px 6px rgba(0,0,0,.4);--shadow-lg: 0 10px 15px rgba(0,0,0,.5);--shadow-xl: 0 20px 25px rgba(0,0,0,.6);--shadow-2xl: 0 25px 50px rgba(0,0,0,.7);--shadow-glow: 0 0 20px var(--primary-glow);--shadow-glow-lg: 0 0 40px var(--primary-glow);--blur-sm: blur(4px);--blur-md: blur(8px);--blur-lg: blur(12px);--blur-xl: blur(20px);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--radius-sm: .125rem;--radius-md: .25rem;--radius-lg: .375rem;--radius-xl: .5rem;--radius-2xl: .75rem;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--transition-spring: .5s cubic-bezier(.68, -.55, .265, 1.55);--z-base: 0;--z-dropdown: 1000;--z-sticky: 1100;--z-overlay: 1200;--z-modal: 1300;--z-popover: 1400;--z-tooltip: 1500}@media (prefers-color-scheme: light){:root{--bg-primary: #FFFFFF;--bg-secondary: #FAFAFA;--bg-tertiary: #F4F4F5;--bg-elevated: #FFFFFF;--bg-overlay: rgba(255, 255, 255, .85);--background: #FFFFFF;--surface-primary: #FFFFFF;--surface-secondary: #F4F4F5;--surface-tertiary: #E4E4E7;--surface-glass: rgba(255, 255, 255, .7);--surface-glass-heavy: rgba(255, 255, 255, .85);--surface: #FFFFFF;--surface-hover: #F4F4F5;--text-primary: #18181B;--text-secondary: #52525B;--text-tertiary: #71717A;--text: #18181B;--border-primary: rgba(0, 0, 0, .1);--border-secondary: rgba(0, 0, 0, .05);--border: rgba(0, 0, 0, .1);--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 6px rgba(0,0,0,.07);--shadow-lg: 0 10px 15px rgba(0,0,0,.1);--shadow-xl: 0 20px 25px rgba(0,0,0,.1);--shadow-2xl: 0 25px 50px rgba(0,0,0,.15)}}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-weight:400;line-height:1.5;color:var(--text-primary);background:var(--bg-primary);min-height:100vh;overflow-x:hidden;position:relative;transition:background-color var(--transition-slow)}#root{min-height:100vh}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);pointer-events:none;z-index:-1}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2;letter-spacing:-.02em;color:var(--text-primary)}h1{font-size:2.5rem;font-weight:700;color:var(--text-primary)}h2{font-size:2.5rem;font-weight:700}h3{font-size:2rem;font-weight:600}h4{font-size:1.5rem}h5{font-size:1.25rem}h6{font-size:1rem}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-light)}input,textarea,select{font-family:inherit;font-size:1rem;font-weight:400;line-height:1.5;color:var(--text-primary);background:var(--surface-glass);border:1px solid var(--border-primary);border-radius:var(--radius-md);padding:.75rem 1rem;-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);transition:all var(--transition-base);width:100%}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);background:var(--surface-glass-heavy);box-shadow:0 0 0 3px var(--primary-glow),var(--shadow-lg)}button{font-family:inherit;font-size:.95rem;font-weight:500;line-height:1;color:var(--text-primary);background:var(--surface-glass);border:1px solid var(--border-primary);border-radius:var(--radius-md);padding:.75rem 1.5rem;cursor:pointer;-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);transition:all var(--transition-base);position:relative;overflow:hidden}button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary)}button:active{transform:translateY(0)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:var(--surface-tertiary);border-radius:var(--radius-full);border:2px solid var(--bg-secondary)}::-webkit-scrollbar-thumb:hover{background:var(--primary)}