:root{--bg-color: #0d1117;--card-bg: rgba(22, 27, 34, .8);--text-primary: #e6edf3;--text-secondary: #8b949e;--accent-color: #2f81f7;--accent-hover: #58a6ff;--border-color: #30363d;--shadow: 0 4px 12px rgba(0, 0, 0, .5);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-family);-webkit-font-smoothing:antialiased;min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}.app-container{max-width:1200px;margin:0 auto;padding:20px;width:100%;flex:1}.app-header{padding:20px 0;border-bottom:1px solid var(--border-color);margin-bottom:30px;display:flex;align-items:center;justify-content:flex-start;gap:15px}.app-logo{height:40px;width:auto;border-radius:6px}.app-header h1{font-size:2rem;font-weight:700;background:linear-gradient(90deg,var(--accent-color),#bc8cff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-1px}.loading,.error{text-align:center;padding:40px;font-size:1.2rem;color:var(--text-secondary)}.video-list h2{margin-bottom:20px;font-size:1.5rem;color:var(--text-primary)}.video-list ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.video-list li{cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.video-list li:hover{transform:translateY(-4px)}.video-item{background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;padding:20px;display:flex;flex-direction:column;align-items:center;text-align:center;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.video-icon{font-size:3rem;margin-bottom:15px;opacity:.8}.video-name{font-weight:600;font-size:1.1rem;margin-bottom:8px;word-break:break-all;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical}.video-size{font-size:.85rem;color:var(--text-secondary)}.player-container{display:flex;flex-direction:column;gap:20px}.back-button{align-self:flex-start;background:transparent;border:1px solid var(--border-color);color:var(--accent-color);padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s ease;display:flex;align-items:center;gap:8px}.back-button:hover{background:#2f81f71a;border-color:var(--accent-color)}.player-wrapper{background:#000;border-radius:16px;overflow:hidden;box-shadow:0 8px 30px #000c;position:relative}.player-wrapper h3{position:absolute;top:0;left:0;width:100%;padding:20px;background:linear-gradient(to bottom,rgba(0,0,0,.8),transparent);color:#fff;z-index:10;opacity:0;transition:opacity .3s;pointer-events:none}.player-wrapper:hover h3{opacity:1}video{display:block;outline:none;max-height:80vh;margin:0 auto}@media (max-width: 600px){.app-header h1{font-size:1.5rem}.video-list ul{grid-template-columns:1fr}}