@import"https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&display=swap";:root{--yt-bg: #FAFAFA;--yt-surface: #F3F3F3;--yt-surface-hover: #EBEBEB;--yt-surface-active: #DEDEDE;--yt-text-primary: #111111;--yt-text-secondary: #737373;--yt-border: #E8E8E8;--yt-yellow: #F59E0B;--yt-blue: #2563EB;--yt-red: #EF4444;--header-height: 0px;--bottom-nav-height: 64px;--sidebar-width: 220px}*{box-sizing:border-box;margin:0;padding:0;outline:none!important;-webkit-tap-highlight-color:transparent!important}body{font-family:Outfit,system-ui,sans-serif;background-color:var(--yt-bg);color:var(--yt-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,textarea,select{font-family:inherit}.app-container{display:flex;flex-direction:column;height:100vh;overflow:hidden}.main-layout{display:flex;flex:1;margin-top:var(--header-height);height:calc(100vh - var(--header-height));overflow:hidden}.desktop-sidebar{display:none;width:var(--sidebar-width);background-color:var(--yt-bg);height:100%;overflow-y:auto;padding:16px 8px;border-right:1px solid var(--yt-border);flex-shrink:0}.nav-item{display:flex;align-items:center;gap:16px;padding:0 12px;height:40px;border-radius:8px;color:var(--yt-text-secondary);cursor:pointer;font-size:14px;font-weight:400;margin-bottom:2px;transition:background-color .15s,color .15s}.nav-item:hover{background-color:var(--yt-surface-hover);color:var(--yt-text-primary)}.nav-item.active{background-color:var(--yt-surface-hover);color:var(--yt-text-primary);font-weight:500}.nav-section-title{padding:12px 12px 6px;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--yt-text-secondary)}.content-area{flex:1;overflow-y:auto;overflow-x:hidden;padding-bottom:var(--bottom-nav-height);background-color:var(--yt-bg)}.button{background-color:var(--yt-text-primary);color:var(--yt-bg);border:none;border-radius:8px;padding:0 16px;height:36px;font-size:14px;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:opacity .15s;white-space:nowrap}.button:hover{opacity:.85}.button:active{opacity:.7}.button.secondary{background-color:var(--yt-surface-hover);color:var(--yt-text-primary)}.button.secondary:hover{background-color:var(--yt-surface-active)}.input{background-color:var(--yt-bg);border:1px solid var(--yt-border);color:var(--yt-text-primary);padding:0 16px;border-radius:8px;font-size:15px;height:40px;width:100%;transition:border-color .15s}.input:focus{border-color:var(--yt-text-primary)}.input::placeholder{color:var(--yt-text-secondary)}.action-btn{border-radius:8px;transition:background-color .15s;cursor:pointer}.action-btn:hover{background-color:var(--yt-surface-hover)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:80px 32px;gap:0}.empty-state-icon{font-size:40px;color:var(--yt-surface-active);margin-bottom:20px;line-height:1}.empty-state-title{font-size:18px;font-weight:600;color:var(--yt-text-primary);margin-bottom:6px}.empty-state-hint{font-size:14px;color:var(--yt-text-secondary);max-width:260px;line-height:20px}.filter-bar{display:flex;align-items:center;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--yt-border);padding:0 12px;gap:0;flex-shrink:0}.filter-bar::-webkit-scrollbar{display:none}.filter-tab{padding:12px 14px;font-size:13px;font-weight:500;color:var(--yt-text-secondary);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;transition:color .15s,border-color .15s;flex-shrink:0}.filter-tab:hover{color:var(--yt-text-primary)}.filter-tab.active{color:var(--yt-text-primary);border-bottom-color:var(--yt-text-primary);font-weight:600}.video-grid{display:grid;grid-template-columns:1fr;gap:0}.video-card{display:flex;flex-direction:column;cursor:pointer;border-bottom:1px solid var(--yt-border);transition:background-color .1s}.video-card:last-child{border-bottom:none}.video-card:active{background-color:var(--yt-surface)}.thumbnail-container{width:100%;position:relative;aspect-ratio:16 / 9;overflow:hidden;background-color:var(--yt-surface)}.thumbnail{width:100%;height:100%;object-fit:cover;display:block}.video-duration{position:absolute;bottom:6px;right:6px;background-color:#000000bf;color:#fff;padding:2px 5px;font-size:11px;border-radius:4px;font-weight:500;letter-spacing:.02em}.video-details{display:flex;padding:10px 12px 16px;gap:10px;align-items:flex-start}.channel-avatar{width:32px;height:32px;border-radius:50%;background-color:var(--yt-surface-active);flex-shrink:0;object-fit:cover;margin-top:2px}.video-info{flex:1;min-width:0}.video-title{color:var(--yt-text-primary);font-size:14px;font-weight:500;line-height:20px;margin-bottom:2px;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.video-meta{color:var(--yt-text-secondary);font-size:12px;line-height:18px}.bottom-nav{position:fixed;bottom:12px;left:12px;right:12px;height:var(--bottom-nav-height);background-color:var(--yt-bg);display:flex;justify-content:space-between;align-items:center;border-radius:20px;padding:0 4px;box-shadow:0 2px 16px #0000001a,0 0 0 1px var(--yt-border);z-index:100}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--yt-text-secondary);font-size:9.5px;font-weight:500;gap:3px;flex:1;height:52px;border-radius:16px;cursor:pointer;transition:color .15s,background-color .15s;letter-spacing:.02em}.bottom-nav-item:active{background-color:var(--yt-surface-hover)}.bottom-nav-item.active{color:var(--yt-text-primary);background-color:var(--yt-surface-hover);font-weight:600}.loader{border:2.5px solid var(--yt-border);border-top-color:var(--yt-text-primary);border-radius:50%;width:28px;height:28px;animation:spin .8s linear infinite;display:block;margin:48px auto}@keyframes spin{to{transform:rotate(360deg)}}.hide-on-mobile{display:none}@media(min-width:768px){.hide-on-mobile{display:inline}.desktop-sidebar{display:block}.bottom-nav{display:none}.content-area{padding:24px}.video-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px 20px}.video-card{border-bottom:none;border-radius:10px}.video-card:hover{background-color:var(--yt-surface)}.thumbnail-container{border-radius:10px;overflow:hidden}.video-details{padding:10px 4px 0}.video-title{font-size:15px;line-height:21px}.video-meta{font-size:13px;line-height:19px}}.player-container{width:100%;max-width:1280px;margin:0 auto}.player-wrapper{position:relative;padding-top:56.25%}.player-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%}.player-info{padding:16px}.player-title{font-size:18px;font-weight:600;line-height:26px;margin-bottom:6px}@media(min-width:768px){.player-title{font-size:22px;line-height:30px}}.player-actions{display:flex;align-items:center;gap:8px;margin-top:12px;padding-bottom:12px;border-bottom:1px solid var(--yt-border);flex-wrap:wrap}.channel-manage-item{display:flex;align-items:center;padding:12px 16px;gap:14px;transition:background-color .15s}.channel-manage-item:hover{background-color:var(--yt-surface)}.channel-manage-item img{width:44px;height:44px;border-radius:50%;object-fit:cover}.channel-manage-info{flex:1;min-width:0}.channel-manage-title{font-size:15px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.channel-manage-meta{font-size:12px;color:var(--yt-text-secondary);margin-top:1px}.tag-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:20px;background-color:var(--yt-surface-hover);color:var(--yt-text-primary);font-size:13px;font-weight:500;cursor:pointer;transition:background-color .15s,color .15s;white-space:nowrap;flex-shrink:0}.tag-badge:hover{background-color:var(--yt-surface-active)}.tag-badge.active{background-color:var(--yt-text-primary);color:var(--yt-bg)}.tag-badge.active:hover{opacity:.85}.tags-scroll{display:flex;gap:6px;overflow-x:auto;padding:10px 12px;scrollbar-width:none;border-bottom:1px solid var(--yt-border)}.tags-scroll::-webkit-scrollbar{display:none}.icon-yellow{color:var(--yt-yellow)!important}.icon-blue{color:var(--yt-blue)!important}.icon-red{color:var(--yt-red)!important}.icon-gray{color:var(--yt-text-secondary)!important}.anim-icon{transition:transform .15s cubic-bezier(.175,.885,.32,1.275)}.anim-icon:active{transform:scale(.75)}.anim-pop{animation:pop-bounce .35s cubic-bezier(.175,.885,.32,1.275)}@keyframes pop-bounce{0%{transform:scale(1)}50%{transform:scale(1.35)}to{transform:scale(1)}}