*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 10px 30px rgba(0,0,0,.2);margin-bottom:2rem}.input-group{display:flex;gap:1rem;margin-bottom:2rem}.input-group input{flex:1 1;padding:1rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:border-color .3s}.input-group input:focus{outline:none;border-color:#667eea}.btn{padding:1rem 2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.4)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.video-info{margin-top:2rem}.video-info h2{color:#333;margin-bottom:1rem}.video-info p{color:#666;line-height:1.6;margin-bottom:.5rem}.video-thumbnail{width:100%;max-width:640px;border-radius:8px;margin:1rem 0}.error{color:#e74c3c;background:#fee;padding:1rem;border-radius:8px;margin-top:1rem}.loading{text-align:center;padding:2rem;color:#666}.video-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:1rem;gap:1rem;margin-top:1rem}.stat-item{background:#f5f5f5;padding:1rem;border-radius:8px}.stat-item strong{display:block;color:#333;margin-bottom:.5rem}.stat-item span{color:#666;font-size:.9rem}