:root{--primary-start: #667eea;--primary-end: #764ba2;--primary-500: #667eea;--primary-600: #5568d3;--primary-700: #4452bc;--accent-start: #f093fb;--accent-end: #f5576c;--accent-500: #f093fb;--accent-600: #ee6fa8;--accent-700: #eb4b55;--gradient-primary: linear-gradient(135deg, var(--primary-start) 0%, var(--primary-end) 100%);--gradient-accent: linear-gradient(135deg, var(--accent-start) 0%, var(--accent-end) 100%);--gradient-primary-reverse: linear-gradient(315deg, var(--primary-start) 0%, var(--primary-end) 100%);--bg-base: #0f0f15;--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-tertiary: #0f3460;--bg-card: #1e3a5f;--bg-card-hover: #243659;--bg-input: #0d2438;--bg-button: #2a5298;--text-primary: #ffffff;--text-secondary: #b8bcc8;--text-tertiary: #7a8394;--text-muted: #5a6370;--border-color: #3a4a5f;--border-color-light: #2a3a4f;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--info-color: #3b82f6;--glass-bg: rgba(30, 58, 95, 0.7);--glass-border: rgba(58, 74, 95, 0.5);--glass-backdrop: blur(10px)}:root{--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);--shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);--shadow-glow: 0 0 20px rgba(102, 126, 234, 0.4);--shadow-glow-accent: 0 0 20px rgba(240, 147, 251, 0.4);--shadow-inset: inset 0 2px 4px rgba(0, 0, 0, 0.06)}:root{--duration-75: 75ms;--duration-100: 100ms;--duration-150: 150ms;--duration-200: 200ms;--duration-300: 300ms;--duration-500: 500ms;--duration-700: 700ms;--duration-1000: 1000ms;--ease-linear: linear;--ease-in: cubic-bezier(0.4, 0, 1, 1);--ease-out: cubic-bezier(0, 0, 0.2, 1);--ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);--ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1)}:root{--container-xs: 20rem;--container-sm: 24rem;--container-md: 28rem;--container-lg: 32rem;--container-xl: 36rem;--container-2xl: 42rem;--container-3xl: 48rem;--container-4xl: 56rem;--container-5xl: 64rem;--container-6xl: 72rem;--container-7xl: 80rem}:root{--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal-backdrop: 1040;--z-modal: 1050;--z-popover: 1060;--z-tooltip: 1070;--z-notification: 1080}:root{--transition-fast: var(--duration-150) var(--ease-out);--transition-base: var(--duration-300) var(--ease-out);--transition-slow: var(--duration-500) var(--ease-out);--aspect-video: auto 3 / 4;--aspect-square: 1;--aspect-wide: auto 16 / 9}.list-page{padding:2rem 0}@media(max-width: 767px){.list-page{padding:1.5rem 0}}.breadcrumb-nav{display:flex;align-items:center;gap:.5rem;margin-bottom:1.5rem;flex-wrap:wrap}@media(max-width: 767px){.breadcrumb-nav{margin-bottom:1rem}}.breadcrumb-nav .breadcrumb-link{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);text-decoration:none;transition:color var(--transition-base)}.breadcrumb-nav .breadcrumb-link:hover{color:var(--primary-500)}.breadcrumb-nav .breadcrumb-link .breadcrumb-icon{width:1em;height:1em}.breadcrumb-nav .separator{display:flex;align-items:center;color:var(--text-tertiary);margin:0 .25rem}.breadcrumb-nav .separator svg{width:1em;height:1em}.breadcrumb-nav .breadcrumb-current{color:var(--text-primary);font-weight:600}.page-header{margin-bottom:2rem}@media(max-width: 767px){.page-header{margin-bottom:1.5rem}}.page-header .page-title{font-size:2.25rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:.75rem;position:relative;padding-bottom:1rem}.page-header .page-title .title-decoration{display:flex;align-items:center;color:var(--primary-500)}.page-header .page-title .title-decoration .title-icon{width:1.5em;height:1.5em}.page-header .page-title .title-text{flex:1}.page-header .page-title .title-gradient{position:absolute;bottom:0;left:0;width:60px;height:4px;background:var(--gradient-primary);border-radius:9999px}@media(max-width: 767px){.page-header .page-title{font-size:1.5rem}}.list-header{padding:2rem 0;background:var(--gradient-primary);color:#fff;margin-bottom:2rem}@media(max-width: 767px){.list-header{padding:1.5rem 0;margin-bottom:1.5rem}}.list-header .list-title{font-size:2.25rem;font-weight:700;margin-bottom:.75rem}@media(max-width: 767px){.list-header .list-title{font-size:1.5rem}}.list-header .list-breadcrumb{display:flex;gap:.75rem;opacity:.9;font-size:1rem}.list-header .list-breadcrumb a{color:#fff;text-decoration:none}.list-header .list-breadcrumb a:hover{text-decoration:underline}.list-header .list-breadcrumb span{opacity:.7}.filter-section{padding:1.5rem;background:var(--bg-card);border:1px solid var(--border-color-light);border-radius:1rem;margin-bottom:2rem}@media(max-width: 767px){.filter-section{margin-bottom:1.5rem;padding:1rem}}.filter-section .filter-group{margin-bottom:1rem}.filter-section .filter-group:last-child{margin-bottom:0}@media(max-width: 767px){.filter-section .filter-group{margin-bottom:.75rem}}.filter-section .filter-label{display:block;font-size:.875rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.filter-section .filter-group{margin-bottom:1rem}.filter-section .filter-group:last-child{margin-bottom:0}@media(max-width: 767px){.filter-section .filter-group{margin-bottom:.75rem}}.filter-section .filter-group.active-filters{padding-bottom:1rem;border-bottom:1px solid var(--border-color-light);margin-bottom:1rem}.filter-section .filter-label{display:block;font-size:.875rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.filter-section .filter-tags{display:flex;flex-wrap:wrap;gap:.5rem}.filter-section .filter-tag{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem .75rem;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color-light);border-radius:.75rem;font-size:.875rem;text-decoration:none;transition:all var(--transition-base)}.filter-section .filter-tag:hover{background:var(--bg-card-hover);border-color:var(--primary-500);color:var(--primary-500)}.filter-section .filter-tag .tag-close{width:1em;height:1em}.filter-section .filter-options{display:flex;flex-wrap:wrap;gap:.5rem}.filter-section .filter-options .filter-option{padding:.5rem 1rem;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color-light);border-radius:.75rem;font-size:.875rem;cursor:pointer;transition:all var(--transition-base);text-decoration:none}.filter-section .filter-options .filter-option:hover{background:var(--bg-card-hover);border-color:var(--primary-500);color:var(--primary-500)}.filter-section .filter-options .filter-option.active{background:var(--gradient-primary);color:#fff;border-color:var(--primary-500)}.filter-section .filter-extend{margin-top:1rem}.filter-section .filter-extend.hidden{display:none}.filter-section .filter-toggle-wrapper{margin-top:1rem;text-align:center}.filter-section .filter-toggle-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:rgba(0,0,0,0);border:1px solid var(--border-color-light);color:var(--text-primary);border-radius:.75rem;cursor:pointer;transition:all var(--transition-base);font-size:.875rem}.filter-section .filter-toggle-btn:hover{background:var(--bg-tertiary);border-color:var(--primary-500);color:var(--primary-500)}.filter-section .filter-toggle-btn .toggle-icon{width:1em;height:1em;transition:transform var(--transition-base)}.filter-section .filter-toggle-btn .toggle-icon.rotate{transform:rotate(180deg)}.list-toolbar{display:flex;align-items:center;justify-content:space-between;padding:1rem;background:var(--bg-card);border:1px solid var(--border-color-light);border-radius:1rem;margin-bottom:1.5rem}@media(max-width: 767px){.list-toolbar{flex-direction:column;gap:1rem;align-items:stretch;margin-bottom:1rem}}.list-toolbar .toolbar-left,.list-toolbar .toolbar-right{display:flex;align-items:center;gap:1rem}@media(max-width: 767px){.list-toolbar .toolbar-left,.list-toolbar .toolbar-right{justify-content:center}}.list-toolbar .sort-item{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary);font-size:.875rem}.list-toolbar .sort-item select{padding:.5rem .75rem;border:1px solid var(--border-color-light);background:var(--bg-input);color:var(--text-primary);border-radius:.75rem;cursor:pointer;outline:none}.list-toolbar .sort-item select:focus{border-color:var(--primary-500)}.list-toolbar .view-mode{display:flex;gap:.5rem}.list-toolbar .view-mode button{width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-color-light);background:rgba(0,0,0,0);color:var(--text-secondary);border-radius:.75rem;cursor:pointer;transition:all var(--transition-base)}.list-toolbar .view-mode button:hover,.list-toolbar .view-mode button.active{background:var(--bg-tertiary);color:var(--primary-500);border-color:var(--primary-500)}.list-toolbar .view-mode button svg{width:1.25em;height:1.25em}.video-grid,.video-list{display:grid;grid-template-columns:repeat(5, 1fr);gap:1.5rem;margin-bottom:2rem}@media(max-width: 479px){.video-grid,.video-list{grid-template-columns:repeat(2, 1fr);gap:.75rem}}.video-grid .video-card,.video-list .video-card{height:100%}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem;text-align:center;background:var(--bg-card);border:2px dashed var(--border-color-light);border-radius:1rem;margin:2rem 0}@media(max-width: 767px){.empty-state{padding:3rem}}.empty-state .empty-icon-wrapper{margin-bottom:1rem}.empty-state .empty-icon{width:4rem;height:4rem;color:var(--text-tertiary);opacity:.5}.empty-state .empty-text{font-size:1.25rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.empty-state .empty-description{color:var(--text-secondary);margin-bottom:1.5rem}.empty-state .empty-link{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:var(--gradient-primary);color:#fff;border-radius:1rem;text-decoration:none;font-weight:600;transition:all var(--transition-base)}.empty-state .empty-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.empty-state .empty-link svg{width:1.25em;height:1.25em}.loading-state{display:grid;grid-template-columns:repeat(auto-fill, minmax(220px, 1fr));gap:1.5rem}@media(min-width: 1024px){.loading-state{grid-template-columns:repeat(5, 1fr)}}@media(min-width: 768px){.loading-state{grid-template-columns:repeat(3, 1fr)}}.loading-state .skeleton-card{border-radius:1rem;overflow:hidden}.loading-state .skeleton-card .skeleton-image{width:100%;aspect-ratio:3/4;background:linear-gradient(90deg, var(--bg-secondary) 0%, var(--bg-tertiary) 50%, var(--bg-secondary) 100%);background-size:200% 100%;animation:loading-shimmer-animation 1.5s infinite}.loading-state .skeleton-card .skeleton-content{padding:1rem}.loading-state .skeleton-card .skeleton-content .skeleton-line{height:12px;background:var(--bg-secondary);border-radius:4px;margin-bottom:.5rem;animation:loading-shimmer-animation 1.5s infinite}.loading-state .skeleton-card .skeleton-content .skeleton-line:last-child{width:70%;margin-bottom:0}