:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--glass-bg:#1e293bb3;--glass-border:#ffffff1a;--danger:#ef4444;--success:#10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);background-image:radial-gradient(at 0 0,#100f15 0,#0000 50%),radial-gradient(at 50% 0,#2f3e6a 0,#0000 50%),radial-gradient(at 100% 0,#722741 0,#0000 50%);background-attachment:fixed;min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif}a{color:var(--accent);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-hover)}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:16px;padding:24px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.btn{background:var(--accent);color:#fff;cursor:pointer;-webkit-user-select:none;user-select:none;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-weight:500;transition:all .2s;display:inline-flex}.btn:hover{background:var(--accent-hover);transform:translateY(-1px)}.btn:active{filter:brightness(.9);transform:translateY(1px)}.btn:disabled{cursor:not-allowed;opacity:.7;background:#475569;transform:none}.btn-danger{background:var(--danger)}.btn-danger:hover{background:#dc2626}.input-field{border:1px solid var(--glass-border);color:#fff;background:#0f172a99;border-radius:8px;width:100%;margin-bottom:16px;padding:12px 16px;font-size:1rem;transition:border-color .2s}.input-field:focus{border-color:var(--accent);outline:none}label{color:var(--text-secondary);margin-bottom:8px;font-size:.9rem;display:block}.app-container{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--glass-border);background:#0f172a66;flex-direction:column;gap:16px;width:250px;padding:24px;display:flex}.sidebar h1{background:linear-gradient(90deg,#60a5fa,#a78bfa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:32px;font-size:1.5rem}.nav-link{color:var(--text-secondary);border-radius:8px;align-items:center;gap:12px;padding:12px 16px;transition:all .2s;display:flex}.nav-link:hover,.nav-link.active{color:#fff;background:#ffffff0d}.main-content{flex:1;padding:40px;overflow-y:auto}.page-header{justify-content:space-between;align-items:center;margin-bottom:32px;display:flex}.video-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;display:grid}.video-card{flex-direction:column;gap:12px;padding:16px;display:flex}.video-thumbnail{object-fit:cover;background-color:#000;border-radius:8px;width:100%;height:160px;margin-bottom:8px}.video-thumbnail-placeholder{width:100%;height:160px;color:var(--text-secondary);background:#ffffff0d;border-radius:8px;justify-content:center;align-items:center;margin-bottom:8px;font-size:.9rem;display:flex}.video-card-title{font-size:1.1rem;font-weight:600}.video-card-meta{color:var(--text-secondary);font-size:.85rem}.badge{color:#60a5fa;background:#3b82f633;border-radius:999px;padding:4px 8px;font-size:.75rem;font-weight:600;display:inline-block}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#000000b3;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{width:100%;max-width:500px}video::-webkit-media-controls-fullscreen-button{display:none!important}video::-webkit-media-controls-picture-in-picture-button{display:none!important}video::-internal-media-controls-download-button{display:none!important}.player-controls-overlay{box-sizing:border-box;z-index:20;background:linear-gradient(#0000,#000000e0);flex-direction:column;gap:8px;max-width:100%;padding:32px 14px 10px;display:flex;position:absolute;bottom:0;left:0;right:0}.player-controls-row{color:#fff;box-sizing:border-box;justify-content:space-between;align-items:center;gap:8px;width:100%;display:flex}.player-controls-group{flex-shrink:0;align-items:center;gap:8px;display:flex}.volume-control-wrapper{justify-content:center;align-items:center;display:flex;position:relative}.volume-slider-popup{-webkit-backdrop-filter:blur(10px);opacity:0;visibility:hidden;pointer-events:none;z-index:60;background:#0f0f16f0;border:1px solid #ffffff26;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;width:36px;height:115px;padding:8px 4px 10px;transition:opacity .2s,visibility .2s,transform .2s;display:flex;position:absolute;bottom:34px;left:50%;transform:translate(-50%)translateY(4px);box-shadow:0 10px 30px #000000b3}.volume-control-wrapper:hover .volume-slider-popup,.volume-control-wrapper:focus-within .volume-slider-popup,.volume-slider-popup:hover,.volume-slider-popup.show{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%)translateY(0)}.player-volume-slider-vertical{cursor:pointer;accent-color:#6c63ff;transform-origin:50%;background:#fff3;border-radius:4px;outline:none;width:76px;height:5px;margin:36px 0 32px;transform:rotate(-90deg)}@media (width<=540px){.player-controls-overlay{gap:4px!important;padding:20px 8px 6px!important}.player-controls-row,.player-controls-group{gap:4px!important}.player-time-display{margin-left:2px!important;font-size:11px!important}.player-center-btn{width:46px!important;height:46px!important;font-size:20px!important}}@media (width<=380px){.player-time-display{letter-spacing:-.5px;font-size:10px!important}}