@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap");:root{--font-main:"Outfit",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-mono:"JetBrains Mono",monospace;--bg-main:#0a0c14;--bg-sidebar:#0f121d;--bg-navbar:rgba(15,18,29,.85);--bg-card:#151928;--bg-card-hover:#1c2237;--bg-glass:rgba(21,25,40,.7);--bg-glass-heavy:rgba(12,14,23,.88);--bg-input:#121624;--bg-elevated:#20263c;--accent:#6366f1;--accent-light:#818cf8;--accent-dark:#4f46e5;--accent-glow:rgba(99,102,241,.35);--accent-cyan:#06b6d4;--accent-cyan-glow:rgba(6,182,212,.3);--accent-rose:#f43f5e;--accent-emerald:#10b981;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--text-inverse:#0f172a;--border:hsla(0,0%,100%,.08);--border-focus:rgba(99,102,241,.6);--border-subtle:hsla(0,0%,100%,.04);--radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:24px;--radius-full:9999px;--shadow-sm:0 2px 8px rgba(0,0,0,.3);--shadow-md:0 8px 24px rgba(0,0,0,.45);--shadow-lg:0 16px 40px rgba(0,0,0,.6);--shadow-glow:0 0 25px var(--accent-glow);--transition-fast:0.15s cubic-bezier(0.4,0,0.2,1);--transition-normal:0.25s cubic-bezier(0.4,0,0.2,1);--transition-smooth:0.4s cubic-bezier(0.16,1,0.3,1);--sidebar-width:240px;--navbar-height:68px}*{box-sizing:border-box;margin:0;padding:0}body,html{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-main);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--accent)}.app-container{display:flex;min-height:100vh}.main-content{flex:1 1;margin-top:var(--navbar-height);margin-left:var(--sidebar-width);min-height:calc(100vh - var(--navbar-height));padding:24px 32px;transition:margin-left var(--transition-normal);max-width:1920px;width:100%}@media (max-width:1024px){.main-content{margin-left:0;padding:20px 16px}}.navbar{position:fixed;top:0;left:0;right:0;height:var(--navbar-height);background:var(--bg-navbar);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);justify-content:space-between;padding:0 24px;z-index:1000}.nav-brand,.navbar{display:flex;align-items:center}.nav-brand{gap:12px;text-decoration:none;color:var(--text-primary);font-weight:700;font-size:1.35rem;letter-spacing:-.02em}.brand-icon{background:linear-gradient(135deg,var(--accent),var(--accent-cyan));width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--shadow-glow)}.nav-search-form{position:relative;width:100%;max-width:540px;margin:0 20px}.nav-search-input{width:100%;padding:10px 18px 10px 44px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-full);color:var(--text-primary);font-size:.95rem;font-family:var(--font-main);transition:all var(--transition-fast);outline:none}.nav-search-input:focus{border-color:var(--border-focus);background:var(--bg-card);box-shadow:0 0 0 3px var(--accent-glow)}.nav-search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none}.nav-actions{display:flex;align-items:center;gap:14px}.sidebar{position:fixed;top:var(--navbar-height);left:0;bottom:0;width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 12px;z-index:900;overflow-y:auto;transition:transform var(--transition-normal)}@media (max-width:1024px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0);box-shadow:var(--shadow-lg)}}.sidebar-overlay{position:fixed;top:var(--navbar-height);left:0;right:0;bottom:0;background:rgba(0,0,0,.6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:850;display:none}.sidebar-overlay.active{display:block}.sidebar-nav-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--radius-md);color:var(--text-secondary);text-decoration:none;font-size:.95rem;font-weight:500;transition:all var(--transition-fast);margin-bottom:4px}.sidebar-nav-item:hover{background:var(--bg-card);color:var(--text-primary);transform:translateX(2px)}.sidebar-nav-item.active{background:linear-gradient(90deg,rgba(99,102,241,.15),rgba(6,182,212,.05));color:var(--accent-light);border-left:3px solid var(--accent);font-weight:600}.sidebar-section-title{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:18px 14px 8px;font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 18px;border-radius:var(--radius-md);font-family:var(--font-main);font-size:.92rem;font-weight:600;cursor:pointer;border:none;text-decoration:none;transition:all var(--transition-fast)}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 4px 14px var(--accent-glow)}.btn-primary:hover{background:linear-gradient(135deg,var(--accent-light),var(--accent));box-shadow:0 6px 20px var(--accent-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:hsla(0,0%,100%,.15);color:#fff}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-card);color:var(--text-primary)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-full)}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:24px;gap:24px}.video-card{display:flex;flex-direction:column;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;transition:all var(--transition-normal);text-decoration:none;color:inherit;position:relative}.video-card:hover{transform:translateY(-4px);border-color:rgba(99,102,241,.3);box-shadow:var(--shadow-md),0 0 20px rgba(99,102,241,.15)}.video-thumbnail-wrapper{position:relative;width:100%;aspect-ratio:16/9;background:#000;overflow:hidden}.video-thumbnail-img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-smooth)}.video-card:hover .video-thumbnail-img{transform:scale(1.04)}.video-duration-badge{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.82);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:#fff;font-size:.75rem;font-weight:600;padding:3px 7px;border-radius:var(--radius-xs);font-family:var(--font-mono)}.video-info{padding:14px 16px;display:flex;gap:12px}.uploader-avatar{width:38px;height:38px;border-radius:var(--radius-full);background:var(--bg-elevated);object-fit:cover;flex-shrink:0;border:1px solid var(--border)}.video-meta{flex:1 1;min-width:0}.video-title{font-size:.98rem;font-weight:600;line-height:1.35;color:var(--text-primary);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.video-uploader-name{font-size:.85rem;color:var(--text-secondary);margin-bottom:2px;display:flex;align-items:center;gap:4px}.video-uploader-name:hover{color:var(--text-primary)}.video-stats{font-size:.8rem;color:var(--text-muted);display:flex;align-items:center;gap:6px}.tag-badge-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.tag-chip{font-size:.75rem;padding:2px 8px;background:hsla(0,0%,100%,.05);border-radius:var(--radius-full);color:var(--accent-light);border:1px solid var(--border-subtle);transition:all var(--transition-fast)}.tag-chip:hover{background:var(--accent-glow);color:#fff;border-color:var(--accent)}.tag-filter-bar{display:flex;gap:10px;overflow-x:auto;padding-bottom:16px;margin-bottom:24px}.tag-pill{white-space:nowrap;padding:7px 16px;border-radius:var(--radius-full);font-size:.88rem;font-weight:500;background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border);text-decoration:none;cursor:pointer;transition:all var(--transition-fast)}.tag-pill:hover{background:var(--bg-card-hover);color:var(--text-primary)}.tag-pill.active{background:var(--text-primary);color:var(--text-inverse);font-weight:600;border-color:var(--text-primary)}.watch-container{display:grid;grid-template-columns:1fr 380px;grid-gap:28px;gap:28px;max-width:1750px;margin:0 auto}@media (max-width:1200px){.watch-container{grid-template-columns:1fr}}.watch-player-section{display:flex;flex-direction:column;gap:16px}.player-wrapper{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg),0 0 35px rgba(0,0,0,.8);border:1px solid var(--border)}.player-video{width:100%;height:100%;object-fit:contain;background:#000}.watch-info-box{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);padding:20px 24px}.watch-title{font-size:1.45rem;font-weight:700;color:var(--text-primary);line-height:1.3;margin-bottom:16px}.watch-actions-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}.channel-card-inline{display:flex;align-items:center;gap:14px;text-decoration:none;color:inherit}.channel-avatar-lg{width:48px;height:48px;border-radius:var(--radius-full);background:var(--bg-elevated);object-fit:cover;border:2px solid var(--border)}.channel-info-col h3{font-size:1.05rem;font-weight:600;color:var(--text-primary)}.channel-info-col p{font-size:.82rem;color:var(--text-secondary)}.markdown-description-box{margin-top:18px;background:var(--bg-input);border-radius:var(--radius-md);padding:18px 20px;font-size:.95rem;line-height:1.65;color:#cbd5e1;border:1px solid var(--border-subtle)}.markdown-description-box h1,.markdown-description-box h2,.markdown-description-box h3{color:var(--text-primary);margin-top:14px;margin-bottom:8px;font-weight:600}.markdown-description-box p{margin-bottom:10px}.markdown-description-box a{color:var(--accent-light);text-decoration:underline;text-underline-offset:2px}.markdown-description-box a:hover{color:var(--accent-cyan)}.markdown-description-box code{background:hsla(0,0%,100%,.08);padding:2px 6px;border-radius:var(--radius-xs);font-family:var(--font-mono);font-size:.85em;color:var(--accent-cyan)}.markdown-description-box pre{background:#07090e;padding:14px;border-radius:var(--radius-sm);overflow-x:auto;border:1px solid var(--border);margin:12px 0}.markdown-description-box blockquote{border-left:3px solid var(--accent);padding-left:14px;color:var(--text-secondary);font-style:italic;margin:12px 0}.markdown-description-box ol,.markdown-description-box ul{padding-left:22px;margin-bottom:10px}.related-column{display:flex;flex-direction:column;gap:14px}.related-section-header{font-size:1.1rem;font-weight:700;margin-bottom:4px;display:flex;align-items:center;justify-content:space-between}.related-video-card{display:flex;gap:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:8px;text-decoration:none;color:inherit;transition:all var(--transition-fast)}.related-video-card:hover{background:var(--bg-card-hover);border-color:rgba(99,102,241,.3);transform:translateX(3px)}.related-thumbnail{position:relative;width:140px;aspect-ratio:16/9;background:#000;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0}.related-thumbnail img{width:100%;height:100%;object-fit:cover}.related-meta{flex:1 1;min-width:0;display:flex;flex-direction:column;justify-content:center}.related-title{font-size:.88rem;font-weight:600;color:var(--text-primary);line-height:1.3;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.related-uploader{font-size:.78rem;color:var(--text-secondary)}.related-stats{font-size:.74rem;color:var(--text-muted)}.channel-page-container{display:flex;flex-direction:column;gap:24px}.channel-banner-box{width:100%;height:220px;background:linear-gradient(135deg,#1e1b4b,#0f172a,#064e3b);border-radius:var(--radius-xl);overflow:hidden;position:relative;border:1px solid var(--border)}.channel-banner-img{width:100%;height:100%;object-fit:cover}.channel-header-card{justify-content:space-between;flex-wrap:wrap;margin-top:-50px;padding:0 24px;position:relative}.channel-header-card,.channel-profile-left{display:flex;align-items:flex-end;gap:20px}.channel-avatar-huge{width:110px;height:110px;border-radius:var(--radius-full);background:var(--bg-card);border:4px solid var(--bg-main);object-fit:cover;box-shadow:var(--shadow-md)}.channel-details h1{font-size:1.8rem;font-weight:800;margin-bottom:4px}.channel-stats-row{display:flex;align-items:center;gap:16px;color:var(--text-secondary);font-size:.9rem}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.75);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:20px}.modal-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:680px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg),0 0 40px rgba(0,0,0,.8);padding:28px;position:relative}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:14px}.modal-title{font-size:1.35rem;font-weight:700;color:var(--text-primary)}.form-group{margin-bottom:18px}.form-label{display:block;font-size:.88rem;font-weight:600;color:var(--text-secondary);margin-bottom:8px}.form-input,.form-textarea{width:100%;padding:11px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-main);font-size:.95rem;outline:none;transition:all var(--transition-fast)}.form-input:focus,.form-textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.dropzone-box{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;background:hsla(0,0%,100%,.02);cursor:pointer;transition:all var(--transition-fast)}.dropzone-box.dragover,.dropzone-box:hover{border-color:var(--accent);background:rgba(99,102,241,.05)}.progress-bar-container{width:100%;height:8px;background:var(--bg-elevated);border-radius:var(--radius-full);overflow:hidden;margin:12px 0}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-cyan));border-radius:var(--radius-full);transition:width .2s ease}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state-icon{font-size:3rem;margin-bottom:16px;color:var(--text-muted)}