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infinite,pulse 2s ease-in-out infinite;margin-right:10px}.demo-users-info{padding:20px;border-top:1px solid var(--border-light);background-color:var(--bg-secondary);border-radius:0 0 12px 12px;animation:fadeIn .6s ease-out}.demo-users-info h3{text-align:center;margin-top:0;color:var(--text-primary);font-size:18px;font-weight:600}.demo-instruction{text-align:center;color:var(--text-secondary);font-size:14px;margin:10px 0 20px;animation:fadeIn .7s ease-out}.demo-users-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;animation:fadeIn .8s ease-out}.demo-user-card{display:flex;align-items:center;padding:12px;border-radius:8px;background-color:var(--bg-modal);border:1px solid var(--border-light);cursor:pointer;transition:all .3s cubic-bezier(.25,.8,.25,1);transform:translateY(0);box-shadow:0 2px 4px #0000000d;animation:fadeIn .3s 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.demo-user-name{color:var(--accent-color)}.demo-user-credentials{display:flex;flex-direction:column;font-size:12px;color:var(--text-secondary);transition:all .3s ease}.demo-user-card:hover .demo-user-credentials{color:#666}.demo-user-email{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:all .3s ease}.demo-user-card:hover .demo-user-email{font-weight:500}.demo-user-password{margin-top:2px;font-weight:500;color:var(--accent-color);transition:all .3s ease;transform:translate(0)}.demo-user-card:hover .demo-user-password{transform:translate(3px)}.link-button{background:none;border:none;color:var(--accent-color);cursor:pointer;font-weight:600;padding:4px 8px;border-radius:4px;transition:all .3s 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768px){.video-controls{padding:12px}.controls-row{flex-wrap:wrap;gap:8px}.left-controls,.right-controls{gap:8px}.time-display{font-size:12px;min-width:80px}.control-button{width:44px;height:44px;font-size:18px;align-items:center;justify-content:center}.volume-container{display:none}.quality-selector{font-size:10px;padding:2px 6px}.video-actions{padding:12px;gap:6px}.action-button{padding:6px 10px;font-size:13px;border-radius:16px}.action-button.notification-toggle{padding:6px 12px}}.video-card-skeleton{border-radius:12px;overflow:hidden;margin-bottom:16px}.skeleton-thumbnail{width:100%;padding-top:56.25%;background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:loading 1.5s infinite;border-radius:12px}.skeleton-text{padding:12px 0}.skeleton-line{height:16px;background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:loading 1.5s 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reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (prefers-contrast: high){:root{--bg-primary: #ffffff;--bg-secondary: #f0f0f0;--text-primary: #000000;--text-secondary: #333333;--accent-color: #0000ff;--border-color: #000000}[data-theme=dark]{--bg-primary: #000000;--bg-secondary: #1a1a1a;--text-primary: #ffffff;--text-secondary: #cccccc;--accent-color: #ffff00;--border-color: #ffffff}}.touch-target{min-height:44px;min-width:44px;display:flex;align-items:center;justify-content:center}.high-contrast-text{color:var(--text-primary);font-weight:500}.low-contrast-text{color:var(--text-secondary)}body{font-family:Roboto,Segoe UI,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5}.video-title{font-weight:500;line-height:1.4}.channel-name,.video-meta{font-weight:400}.spacing-xs{margin-bottom:4px}.spacing-sm{margin-bottom:8px}.spacing-md{margin-bottom:16px}.spacing-lg{margin-bottom:24px}.spacing-xl{margin-bottom:32px}.grid-gap-xs{gap:4px}.grid-gap-sm{gap:8px}.grid-gap-md{gap:16px}.grid-gap-lg{gap:24px}.grid-gap-xl{gap:32px}.admin-panel{padding:20px;background-color:var(--background-color);color:var(--text-color);min-height:100vh}.admin-panel .container{max-width:1200px;margin:0 auto}.admin-panel h1{font-size:2rem;margin-bottom:20px;color:var(--primary-color)}.admin-content{display:flex;gap:20px}.admin-sidebar{width:250px;background-color:var(--card-background);border-radius:8px;padding:20px;box-shadow:0 2px 10px #0000001a}.sidebar-item{padding:12px 15px;margin-bottom:5px;border-radius:4px;cursor:pointer;transition:background-color .3s}.sidebar-item:hover{background-color:var(--hover-background)}.sidebar-item.active{background-color:var(--primary-color);color:#fff}.admin-main{flex:1}.add-video-form{background-color:var(--card-background);border-radius:8px;padding:25px;box-shadow:0 2px 10px #0000001a;margin-bottom:30px}.add-video-form h2{margin-top:0;margin-bottom:20px;color:var(--primary-color)}.form-group{margin-bottom:20px}.form-row{display:flex;gap:20px}.form-row .form-group{flex:1}.form-group label{display:block;margin-bottom:5px;font-weight:500}.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;background-color:var(--input-background);color:var(--text-color);font-size:1rem}.form-group textarea{resize:vertical;min-height:80px}.btn{padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:1rem;font-weight:500;transition:background-color .3s}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:var(--secondary-color);color:#fff}.btn-secondary:hover{background-color:var(--secondary-hover)}.prefill-section{margin-top:30px;padding-top:20px;border-top:1px solid #eee}.prefill-section h3{margin-top:0;margin-bottom:15px}.video-list h2{margin-bottom:20px;color:var(--primary-color)}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.video-card{background-color:var(--card-background);border-radius:8px;overflow:hidden;box-shadow:0 2px 10px #0000001a}.video-card .thumbnail{width:100%;height:160px;overflow:hidden}.video-card .thumbnail img{width:100%;height:100%;object-fit:cover}.video-info{padding:15px}.video-info h3{margin:0 0 10px;font-size:1.1rem}.video-info p{margin:0 0 15px;color:var(--secondary-text);font-size:.9rem}.video-meta{display:flex;justify-content:space-between;font-size:.8rem;color:var(--secondary-text)}.message{padding:12px;border-radius:4px;margin-top:15px}.message.success{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb}.message.error{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb}@media (max-width: 768px){.admin-content{flex-direction:column}.admin-sidebar{width:100%}.form-row{flex-direction:column;gap:0}}